Panasonic KX-FP80C Service Manual
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Panasonic KX-FP80C Service Manual

Panasonic KX-FP80C Service Manual

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ORDER NO. KMF0006414C1
Compact Plain Paper FAX
KX-FP80C
(for Canada)
1. INTRODUCTION
1.1. SAFETY PRECAUTIONS
1. Before servicing, unplug the AC power cord to prevent an electric
shock.
2. When replacing parts, use only the manufacturer's recommended
1

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  • Page 1 ORDER NO. KMF0006414C1 Compact Plain Paper FAX KX-FP80C (for Canada) 1. INTRODUCTION 1.1. SAFETY PRECAUTIONS 1. Before servicing, unplug the AC power cord to prevent an electric shock. 2. When replacing parts, use only the manufacturer's recommended...

  • Page 2: Insulation Resistance Test

    components. 3. Check the condition of the power cord. Replace if wear or damage is evident. 4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc. 5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent the customer from being exposed to shock hazards.

  • Page 3: For Service Technicians

    1.3. FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions. 1. Cover the plastic part's boxes with aluminum foil. 2. Ground the soldering irons. 3. Use a conductive mat on the worktable. 4.

  • Page 4: Personal Safety Precautions

    1.6. PERSONAL SAFETY PRECAUTIONS 1.6.1. MOVING SECTIONS OF THE UNIT Be careful not to let your hair, clothes, fingers, accessories, etc., become caught in any moving sections of the unit. The moving sections of the unit are the rollers and a gear. There is a separation roller and a document feed roller which are rotated by the document feed motor.

  • Page 5: Service Precautions

    1.7. SERVICE PRECAUTIONS 1.7.1. PRECAUTIONS TO PREVENT DAMAGE FROM STATIC ELECTRICITY Electrical charges accumulate on a person. For instance, clothes rubbing together can damage electric elements or change their electrical characteristics. In order to prevent static electricity, touch a metallic part that is grounded to release the static electricity. Never touch the electrical sections such as the power supply unit, etc.
  • Page 6 1.8. FEATURES General - Help function Please refer to 2.1.3. WHEN YOU DON'T KNOW HOW TO OPERATE THE UNIT, USE THE HELP FUNCTION.() to print below features. Display: 1. QUICK SET UP 2. FEATURE LIST 3. SPEED DIALING 4. FAX SND/RCV 5.

  • Page 7: Specifications

    - Redialing function - 40-Station telephone directory with Speed Director Enhanced Copier Function - Multi-copy function (up to 40 copies) - Enlargement and reduction - Collate - 64-Level halftone 1.9. SPECIFICATIONS Applicable Lines: Public Switched Telephone Network Document Size: Max. 216 mm (8 1/2") in width Max.
  • Page 8 Thermal Transfer on Plain Paper Data Compression System: Modified Huffman (MH), Modified READ (MR) Modem Speed: 9,600/7,200/4,800/2,400 bps; Automatic Fallback Operating Environment: 5—35°C (41—95°F), 20—80 % RH (Relative Humidity) Dimensions (H×W×D): 185×345×276 mm (7 9/32"×13 19/32"×10 7/8") Mass (Weight): Approx. 3.2 kg (8.5 lb.) Power Consumption: Standby: Approx.

  • Page 9: Optional Accessories

    1.10. OPTIONAL ACCESSORIES 1.11. TEST CHART 1.11.1. ITU-T No.1 TEST CHART...

  • Page 10: Itu-T No.2 Test Chart

    1.11.2. ITU-T No.2 TEST CHART...

  • Page 11: Location Of Controls

    1.12. LOCATION OF CONTROLS 1.12.1. OVERVIEW...

  • Page 12: Control Panel

    Note: - The document will be ejected from the front of the unit. Install the unit on a desk or floor with a smooth surface and do not place anything in front of the unit. 1.12.2. CONTROL PANEL...
  • Page 13 1.13. CONNECTIONS (1) Connect the handset cord. (2) Connect the telephone line cord. (3) Connect the power cord. - When the power is turned on for the first time, the unit will print some basic information.

  • Page 14: Installation Space

    Note: - For additional equipment protection, we recommend the use of a surge protector. The following types are available; TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.), SPIKE BLOK MODEL SK6- 0 (TRIPPE MFG. CO.), SUPER MAX (PANAMAX) or MP1 (ITW LINX). / The warranty does not cover damage due to power line surges or lightning.

  • Page 15: Installing The Paper Tray

    Note: - Avoid excessive heat or humidity. - Use the unit within the following ranges of temperature and humidity. - Ambient temperature: 5°C to 35°C - Relative humidity: 20% to 80% (without condensation) - Power cord length should be less than 5 meters (16.4 feet). Using a longer cord may reduce the voltage or cause malfunctions.

  • Page 16: Installing The Recording Paper

    Insert one tab on the paper tray into one slot on the back of the unit ( ) and then insert the other tab into the other slot ( Note: - Do not place the unit in areas where the paper tray may be obstructed by a wall, etc.
  • Page 17 Note for recording paper: - Avoid paper with a cotton and/or fiber content that is over 20%, such as letterhead paper or paper used for resumes. - Do not use different types or thicknesses of paper at the same time. This may cause a paper jam.
  • Page 18 Note: - Avoid double-sided printing - Do not use paper printed from this unit for double-sided printing with other copiers or printers, or the paper may jam. - Some paper only accepts print on one side. Try using the other side of paper if you are not happy with the print quality.

  • Page 19: Setting Your Logo

    Note: - Remove chips, staples or other similar fastening objects. - Check that ink, paste or correction fluid has dried. - Do not send the following types of documents. Use copies for fax transmission. — Chemically treated paper such as carbon or carbon less duplicating paper —...
  • Page 20 Example: Bill A. Press twice. B. Press six times. C. Press six times. D. Press to move the cursor to the next space and press times. 5. Press 6. Press...
  • Page 21 Note: - You can enter your logo by rotating To correct a mistake To insert a character Press to move the cursor to the incorrect character, then 1. Press to move the cursor to the position where you want to insert the character. make the correction.
  • Page 22 1.14.8. TO SELECT CHARACTERS USING THE SPEED DIRECTOR Instead of pressing the dial keys, you can select characters using the SPEED DIRECTOR. 1. Rotate unit the desired character is displayed. 2. Press to move the cursor to the next space. - The character displayed in step 1 is inserted.

  • Page 23: Replacing The Film Cartridge

    Display order of characters 1.14.9. REPLACING THE FILM CARTRIDGE When the unit runs out of ink film, the following message will be displayed. Display: Install a new ink film. The following ink films are available for replacement. Each roll prints about 150 letter size pages.
  • Page 24 2. Push the back cover open button ( ) and open the back cover ( ).
  • Page 25 3. Pull up the blue gear side and remove the used ink film. Remove the used core. 4. Remove the stoppers and tags from the new ink film. Find the “T” shaped gear (blue).
  • Page 26 5. Insert the blue core of the front ink film roll into the right slot of the unit ( ). Insert the “T” shaped gear (blue) into the left slot of the unit ( ). / Insert the back ink film roll ( ). 6.
  • Page 27 7. Close the back cover securely by pushing down on the dotted area at both ends ( ). / Close the front cover securely ( ). - The following message will be displayed while the unit is checking that there is no slack on the ink film. Display:...

  • Page 28: Maintenance Items And Component Locations

    Note: - The ink film is completely safe to touch, and will not rub off on your hands like carbon paper. 1.15. MAINTENANCE ITEMS AND COMPONENT LOCATIONS 1.15.1. OUTLINE MAINTENANCE AND REPAIRS ARE PERFORMED USING THE FOLLOWING STEPS. 1. Periodic maintenance Inspect the equipment periodically and if necessary, clean any contaminated parts.

  • Page 29: Maintenance Check Items/Component Locations

    or the telephone line. 4. Determine causes Determine the causes of the equipment problem by troubleshooting. 5. Equipment repairs Repair or replace the defective parts and take appropriate measures at this stage to ensure that the problem will not recur. 6.

  • Page 30: Maintenance List

    1.15.2.1. MAINTENANCE LIST...

  • Page 31: Maintenance

    OPERATION CHECK REMARKS Document Path Remove any foreign matter such as paper. — Rollers If the roller is dirty, clean it with a damp Refer to 1.15.3. cloth then dry thoroughly. MAINTENANCE(). Platen Roller If the platen is dirty, clean it with a damp —...
  • Page 32 If misfeeding occurs frequently or if dirty patterns or bands appear on a transmitted document or on the original of a copied document, clean the document feeder. 1. Disconnect the power cord and the telephone line cord. 2. Open the front cover by pulling up the center part. 3.
  • Page 33 1.15.3.2. CLEANING THE THERMAL HEAD AND BLACK BAR If dirty patterns or black or white bands appear on a copied or received document, clean the thermal head.

  • Page 34: Troubleshooting Guide

    1. Disconnect the power cord and the telephone line cord. 2. Open the front cover by pulling up the center part. 3. Open the back cover by pushing the back cover open button. 4. Clean the thermal head with a cloth moistened with isopropyl rubbing alcohol, and let it dry thoroughly.

  • Page 35: Troubleshooting

    2.1.1. TROUBLESHOOTING After confirming the problem by asking the user, troubleshoot according to the instructions and observe the following precautions. 2.1.2. PRECAUTIONS 1. If there is a problem with the print quality or the paper feed, first check if the installation space and the print paper meets the specifications, the paper selection lever/paper thickness lever is set correctly, and the paper is set correctly without any slack.
  • Page 36 Note: The explanations given in the [ ] are for servicemen only. CROSS REFERENCE: 2.2.1. DOCUMENT JAMS() 2.2.2. RECORDING PAPER JAMS() ADJUSTMENTS()

  • Page 37: Document Jams

    CROSS REFERENCE: 2.2.1. DOCUMENT JAMS() Note: The explanations given in the [ ] are for servicemen only. 2.2.1. DOCUMENT JAMS If the unit does not release the document during feeding, remove the jammed document as follows. 1. Open the front cover by pulling up the center part. 2.
  • Page 38 Note: - Do not pull out the jammed paper forcibly before opening the front cover.

  • Page 39: Recording Paper Jams

    2.2.2. RECORDING PAPER JAMS If the unit does not eject any recording paper during reception or copying, the recording paper has jammed and the display will show the following massage. When paper has jammed under the film cartridge Display: Remove the jammed paper as follows. 1.
  • Page 40 2. Push the back cover open button ( ) and open the back cover ( ).
  • Page 41 3. Remove the jammed recording paper. 4. If the ink film is slack, tighten it by winding the gears. 5. Close the back cover securely by pushing down on the dotted area at both ends ( ). / Close the front cover securely ( ).

  • Page 42: Troubleshooting Details

    2.3. TROUBLESHOOTING DETAILS 2.3.1. OUTLINE Troubleshooting is for recovering quality and reliability by determining the broken component and replacing, adjusting or cleaning it as required. First, determine the problem then decide the troubleshooting method. If you have difficulty finding the broken part, determine which board is broken.

  • Page 43: Troubleshooting Items Table

    CROSS REFERENCE: 2.3.3.1. SIMPLE CHECK LIST() 2.3.6. DIGITAL BOARD SECTION() 2.3.8. POWER SUPPLY BOARD SECTION() 2.3.3. TROUBLESHOOTING ITEMS TABLE...

  • Page 44: Simple Check List

    CROSS REFERENCE: 2.3.4. ADF (Auto Document Feed) SECTION() 2.3.5. COMMUNICATION SECTION() 2.3.7. ANALOG BOARD SECTION() 2.3.9. OPERATION PANEL SECTION() 2.3.10. SENSOR SECTION() 2.3.3.1. SIMPLE CHECK LIST...

  • Page 45: Adf (Auto Document Feed) Section

    CROSS REFERENCE: 2.5. TEST FUNCTIONS() 2.3.4. ADF (Auto Document Feed) SECTION 2.3.4.1. NO DOCUMENT FEED...

  • Page 46: Adjusting The Feeder

    CROSS REFERENCE: 2.3.6. DIGITAL BOARD SECTION() 2.3.8. POWER SUPPLY BOARD SECTION() 2.3.10. SENSOR SECTION() 2.5. TEST FUNCTIONS() ADJUSTMENTS() 4 DISASSEMBLY INSTRUCTIONS() 6.4.5. STEPPING MOTOR DRIVE CIRCUIT() Note: When using thin paper etc., sometimes the document will not feed. Refer to 3.1.
  • Page 47 - When using thick paper etc., sometimes the document will not be fed. Refer to 3.1. ADJUSTING THE FEEDER PRESSURE(). Fig. B...
  • Page 48 CROSS REFERENCE: 1.15.3. MAINTENANCE() ADJUSTMENTS() 4 DISASSEMBLY INSTRUCTIONS() Note: When confirming if the characters are extended or distorted, or if the feed problem is occurred, use this test chart format...

  • Page 49: Document Jam

    (Fig. B). 2.3.4.3. DOCUMENT JAM CROSS REFERENCE: 2.3.10. SENSOR SECTION() 4 DISASSEMBLY INSTRUCTIONS() 2.3.4.4. SKEW...
  • Page 50 * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED () and using it. CROSS REFERENCE: 1.15.2. MAINTENANCE CHECK ITEMS/COMPONENT LOCATIONS() 2.3.4. ADF (Auto Document Feed) SECTION() 2.3.4.2. MULTIPLE FEED() 4 DISASSEMBLY INSTRUCTIONS() 2.3.4.5. THE RECORDING PAPER DOES NOT FEED...

  • Page 51: Paper Jam

    * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED ()and using it. CROSS REFERENCE: 1.14.3. INSTALLING THE RECORDING PAPER() 2.3.6. DIGITAL BOARD SECTION() 2.3.8. POWER SUPPLY BOARD SECTION() 2.3.10. SENSOR SECTION() 2.5. TEST FUNCTIONS() 4 DISASSEMBLY INSTRUCTIONS() 4.11.
  • Page 52 CROSS REFERENCE: 2.3.10. SENSOR SECTION() 2.5. TEST FUNCTIONS() 4 DISASSEMBLY INSTRUCTIONS() 6.5. SENSORS AND SWITCHES() 2.3.4.7. MULTIPLE FEED AND SKEW CROSS REFERENCE: 4 DISASSEMBLY INSTRUCTIONS() 9.1. OPERATION PANEL SECTION()
  • Page 53 2.3.4.8. THE SENT FAX DATA IS SKEWED * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED() and using it. CROSS REFERENCE: 2.3.4.4. SKEW() 2.3.4.9. THE RECEIVED FAX DATA IS SKEWED * We recommend making a copy of the Fig. B document in 2.3.4.2.
  • Page 54 2.3.4.10. RECEIVED OR COPIED DATA IS EXPANDED * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED() and using it. CROSS REFERENCE: 4 DISASSEMBLY INSTRUCTIONS() 2.3.4.11. A BLANK PAGE IS COPIED...
  • Page 55 * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED () and using it. CROSS REFERENCE: 2.3.4.2. MULTIPLE FEED() 2.3.4.12. ABLANK PAGE IS RECEIVED() 2.5. TEST FUNCTIONS() 4 DISASSEMBLY INSTRUCTIONS() 6.4.3. THERMAL HEAD()
  • Page 56 Fig. C 2.3.4.12. ABLANK PAGE IS RECEIVED...
  • Page 57 CROSS REFERENCE: 2.3.4.11. A BLANK PAGE IS COPIED() 2.3.7. ANALOG BOARD SECTION() 2.5. TEST FUNCTIONS() 2.3.4.13. BLACK OR WHITE VERTICAL LINE...
  • Page 58 * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED () and using it. CROSS REFERENCE: 1.15.3.2. CLEANING THE THERMAL HEAD AND BLACK BAR() 2.3.4.2. MULTIPLE FEED() 4 DISASSEMBLY INSTRUCTIONS() 2.3.4.14. BLACK OR WHITE LATERAL LINE ON PRINT OUT...
  • Page 59 * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED() and using it. CROSS REFERENCE: 2.3.4.2. MULTIPLE FEED() 2.3.4.11. A BLANK PAGE IS COPIED() 2.3.6. DIGITAL BOARD SECTION() 2.5. TEST FUNCTIONS() 4 DISASSEMBLY INSTRUCTIONS() 2.3.4.15. AN ABNORMAL IMAGE IS PRINTED...

  • Page 60: Communication Section

    * We recommend making a copy of the Fig. B document in 2.3.4.2. MULTIPLE FEED () and using it. CROSS REFERENCE: 2.3.4.2. MULTIPLE FEED() 2.3.7. ANALOG BOARD SECTION() 2.5. TEST FUNCTIONS() 4 DISASSEMBLY INSTRUCTIONS() 2.3.5. COMMUNICATION SECTION Find the problem in the table shown below, and refer to the corresponding troubleshooting procedure in 2.3.5.1.
  • Page 61 Symptom Content Possible cause Troubleshooting Problem with the feeding The paper is not fed properly when faxing. mechanism. (Nor in the copy mode.) Troubleshooting Problem with the service The fax usually transmits successfully but line or with the sometimes fails. (The unit can copy receiver's fax.
  • Page 62 CROSS REFERENCE: 1.15.3. MAINTENANCE() 2.3.4. ADF (Auto Document Feed) SECTION() 2.3.9. OPERATION PANEL SECTION() 2.3.5.1.2. SOMETIME THERE IS A TRANSMIT PROBLEM...
  • Page 63 Note: "596: Transmit level set" represents a service code. (Refer to 2.4.4. SERVICE FUNCTION TABLE ().) 2.3.5.1.3. RECEIVE PROBLEM First confirm whether the recording paper is installed properly or not before starting troubleshooting. (Refer to "Remarks".)
  • Page 64 Note: "596: Transmit level set" represents a service code. (Refer to 2.4.4. SERVICE FUNCTION TABLE ().) Remarks: Regarding the reception problem, we have investigated the conceivable causes in the flow chart except for the software-related errors. However, some troubles may occur due to the software- related problems such as "OUT OF PAPER"...
  • Page 65 UNIT OVERHEATED (COVER OPEN, etc.)...Reset the unit. PAPER JAMMED CHECK FILM Please refer to 2.2. USER RECOVERABLE ERRORS () for the above items. If it turns out to be a hardware deformity, please check each sensor. (Refer to 2.5. TEST FUNCTIONS ().) 2.3.5.1.4.
  • Page 66 (Cause and Countermeasure) As shown in the chart above, the total handshaking time must be reduced, but because of the long distance connection and linking of several stations, the line connection time cannot be reduced. Accordingly, the following countermeasures should be tried. (A)...
  • Page 67 OFF, the transmission side will try the training signal three times at each speed (9600BPS, 4800BPS and 2400BPS). If NG, it will drop the speed by one rank (fall-back). When the international mode is switched ON, each speed will be tried only twice. In other words, the slower speed with fewer errors can be accessed more easily.

  • Page 68: Service Function

    SYMPTOM COUNTERMEASURE 1. If possible, manual transmission should be done from the transmission side. Does not receive in the automatic 2. If possible, two pauses should be inserted at the end of the auto dial number on mode. the transmission side. 3.
  • Page 69 Error code table: (2) RESULT (3) MODE SYMPTOM Counter CODE measure PRESSED THE STOP SND & Communication was interrupted by the STOP button. DOCUMENT JAMMED The document paper is jammed. NO DOCUMENT No document paper. THE COVER WAS SND & The cover is open.
  • Page 70 (2) RESULT (3) MODE SYMPTOM Counter CODE measure ERROR-NOT YOUR DCN is received after CFR transmission. UNIT COMMUNICATION Carrier is cut when the image signal is received. ERROR MEMORY FULL The document was not received due to memory full. CANCELED The multi-station transmission was rejected by the user.
  • Page 72 CROSS REFERENCE: 2.5. TEST FUNCTIONS()
  • Page 73 CROSS REFERENCE: 2.5. TEST FUNCTIONS()
  • Page 74 CROSS REFERENCE: 2.5. TEST FUNCTIONS()
  • Page 75 CROSS REFERENCE: 2.5. TEST FUNCTIONS()

  • Page 79: Remote Programming

    CROSS REFERENCE: 2.5. TEST FUNCTIONS() 2.3.5.2. REMOTE PROGRAMMING If, after the call is connected, the customer describes the situation and it is determined that the problem can be corrected by making parameter changes, this function makes it possible to change parameters such as the user code and service code from another fax (using DTMF tones).
  • Page 80 First, in order to check the current status of the service code parameter, print out the setup list (code: 991) and the service list (code: 999) from the customer's fax machine. Based on this, the parameters for the desired codes can be changed. The procedure for changing and listing parameters is described on 2.3.5.2.1.
  • Page 81 CROSS REFERENCE: 2.3.5.2.2. PROGRAM MODE TABLE() 2.3.5.2.2. PROGRAM MODE TABLE Code Function Set Value Default Remote Setting Set date and time mm/dd/yy hh:mm Jan/01/00 Your logo --------- None Your fax number --------- None Print sending report 1:Error / 2:ON / 3:OFF Error FAX ring count 1 to 5 rings (for ext.
  • Page 82 Code Function Set Value Default Remote Setting Scanner test --------- --------- Motor test --------- --------- LED test --------- --------- LCD test --------- --------- Document jam detection 1:ON / 2:OFF Break % select 1:61% / 2:67% ITS auto redial time set 00~99 ITS auto redial line 001~999sec...

  • Page 83: Digital Board Section

    Code Function Set Value Default Remote Setting Journal 3 list 1:Start --------- History list 1:Start --------- Service list 1:Start --------- OK means "can set". NG means "can not set". Note: Refer to 2.4.4. SERVICE FUNCTION TABLE () for descriptions of the individual codes. Example: If you want to set value in the "004 Transmission report mode", press the dial key number 1,2 or 3 corresponding to the Set Value you want to select.
  • Page 84 Note: 1. Electrical continuity may have existed at the factory check, but a faulty contact occurred as a result of vibration, etc., during transport. 2. Solder waste remaining on the board may get caught under the IC during transport, causing a short circuit. Before we begin mass production, several hundred trial units are produced at the plant, various tests are applied and any malfunctions are analyzed.
  • Page 85 controlling each IC. All ICs have some inner registers that are assigned to a certain address. It is the address bus by which the ASIC designates the location inside each IC. And the data bus reads or writes the data in order to transmit the instructions from the ASIC to the ICs. These signal lines are all controlled by voltages of 5V (H) or 0V (L).
  • Page 86 As long as these signals remain normal, once the power is turned on, each IC can repeatedly output 5V (H) and 0V (L). The following shows NG and normal wave patterns. NG Wave pattern (Refer to NG EXAMPLE) Normal Wave Patterns Remarks: When you use an oscilloscope to judge whether a signal to be tested is normal or NG, perform...
  • Page 87 the signal check in exactly the same order as in [List 1]. (If the ASIC fails to access the ROM, the ASIC cannot access SRAM or DRAM normally.) The digital circuit actually operates according to the timing combinations of these signals. If the timing of these signals is even slightly delayed, the circuit will not work.
  • Page 88 CROSS REFERENCE: 2.3.6.2. NG EXAMPLE() 2.3.6.3. CHECK THE STATUS OF THE DIGITAL BOARD() 2.3.8. POWER SUPPLY BOARD SECTION()
  • Page 89 CROSS REFERENCE: 2.3.6.3. CHECK THE STATUS OF THE DIGITAL BOARD() Other NG example while the power is ON and the LCD displays the following. 2.3.6.2. NG EXAMPLE...
  • Page 90 2.3.6.3. CHECK THE STATUS OF THE DIGITAL BOARD...

  • Page 91: Analog Board Section

    2.3.7. ANALOG BOARD SECTION This chapter provides the testing procedures required for the analog parts. A signal route to be tested is determined depending upon purposes. For example, the handset TX route begins at the handset microphone and the signal is output to the telephone line. The signal mainly flowing on this route is analog.
  • Page 92 Note: { }: Inside the digital board 2.3.7.2. DEFECTIVE ITS (Integrated Telephone System) SECTION 1. No handset and speakerphone transmission / reception Perform a signal test in the ITS or the NCU section and locate a defective point (where the signal disappears) on each route between the handset microphone and telephone line (sending), or between the telephone line and the handset speaker (receiving), or between the microphone and the telephone line (sending), or...
  • Page 93 3. No ring tone (or No bell) CROSS REFERENCE: 2.3.7.1. CHECK SHEET()
  • Page 94 6.8. NCU SECTION() 4. No tone dialing CROSS REFERENCE: 2.3.7.1. CHECK SHEET() 2.3.7.3. DETECTIVE TAM INTERFACE SECTION 1. The FAX turns on, but does not arrive through TAM.
  • Page 95 CROSS REFERENCE: 6.10.2. CIRCUIT OPERATION() 2. A FAX is received, but won't switch from TAM to FAX. CROSS REFERENCE: 2.3.7. ANALOG BOARD SECTION() 6.10. TAM INTERFACE SECTION() 2.3.8. POWER SUPPLY BOARD SECTION 2.3.8.1. KEY COMPONENTS FOR TROUBLESHOOTING Check the following parts first: F101, D101-D104, C106, Q101, PC101 and IC101. This comes from our experience with experimental tests.

  • Page 96: Toroubleshooting Flow Chart

    2.3.8.2. TOROUBLESHOOTING FLOW CHART...
  • Page 99 2.3.8.3. BROKEN PARTS REPAIR DETAILS (D101, D102, D103, D104) Check for a short-circuit in terminal 4. If D101, D102, D103 and D104 are short-circuits, F101 will melt (open). In this case, replace all of the parts (D101, D102, D103, D104, F101). (Q101) The worst case of Q101 is a short-circuit between the Drain and Gate because damage expands to the peripheral circuit of Q101.

  • Page 100: Sensor Section

    2.3.9.2. NO LCD INDICATION CROSS REFERENCE: 2.5. TEST FUNCTIONS() 2.3.10. SENSOR SECTION Refer to 6.5. SENSORS AND SWITCHES() for the circuit descriptions. The Test Function makes the sensor circuit check easier. (Refer to 2.5. TEST FUNCTIONS().) / For example, as for "COVER OPEN SENSOR", "CO" is turned ON/OFF on the display when you open or close the front cover.

  • Page 101: Cis (Contact Image Sensor) Section

    2.3.10.3. CHECK THE COVER OPEN AND THE FILM END SW (SW501)...."COVER OPEN " or "CHECK FILM" 2.3.10.4. CHECK THE HOOK SWITCH (SW101) 2.3.10.5. CHECK THE PAPER TOP SENSER (PS501)......"PAPER JAMMED" 2.3.11. CIS (Contact Image Sensor) SECTION Refer to 6.4.4. SCANNING BLOCK().
  • Page 102 CROSS REFERENCE: 2.5. TEST FUNCTIONS()

  • Page 103: Thermal Head Section

    2.3.12. THERMAL HEAD SECTION Refer to 6.4.3. THERMAL HEAD().

  • Page 104: Programming And Lists

    2.4. PROGRAMMING AND LISTS The programming functions are used to program the various features and functions of the machine, and to test the machine. This facilitates communication between the user and the service man while programming the unit. 2.4.1. OPERATION There are 2 basic categories of programming functions, the User Mode and the Service Mode.

  • Page 105: User Mode

    2.4.3. USER MODE (The list below is an example of the SYSTEM SETUP LIST the unit prints out.)

  • Page 106: Service Function Table

    Note: The above values are the default values. 2.4.4. SERVICE FUNCTION TABLE...
  • Page 107 Code Function Set Value Effective Default Remarks Range Pause time set X 100 001~600 ---------- msec Flash time X 10 ms 01~99 ---------- Dial speed select 1:10 pps 2: 1, 2 ---------- 20 pps VOX sense 1:High 2: 1, 2 When the TAM (or EXT TAM) does stop recording the ICM because is detected on the telephone line,...
  • Page 108 Code Function Set Value Effective Default Remarks Range ITS auto redial time set X number 00~99 Selects the number of times that of times is redialed (not including the first ITS auto redial line X second 001~999 Sets the interval of ITS redialing. disconnection time set Remote turn-on ring X number...
  • Page 109 Code Function Set Value Effective Default Remarks Range Receive error limit value set X Number 001~999 Sets the number of acceptable of times lines when the FAX reconstructs received data. Refer to 2.3.5.1.3. RECEIVE PROBLEM(). Transmit level set X dBm - 15~00 Selects the FAX transmission Refer to...

  • Page 110: Service Mode Settings (Example Of A Printed Out List)

    Code Function Set Value Effective Default Remarks Range T1 timer 1, 2 Sets a higher value when the 1:35 sec / 2 response from the other party :60 sec more time during FAX transmission. T4 timer X 100 00~99 Use this function when delay occurs msec in the line and communication Mobile comm) does not work well.
  • Page 111 2.4.6. HISTORY Note: See the following descriptions of this report. Item No. (1) ~ (49) are corresponding to the listed items in 2.4.6.1. DESCRIPTIONS OF THE HISTORY REPORT(). 2.4.6.1. DESCRIPTIONS OF THE HISTORY REPORT (1) ROM VERSION EPROM version (2) SUM EPROM internal data calculation.
  • Page 112 (4) YOUR TELEPHONE NUMBER The user telephone number recorded in the unit. If it is not recorded, NONE will be displayed. (5) FAX PAGER NUMBER If you program a pager number into the unit, the pager number will be displayed here. (6) FACTORY - CUSTOMER This shows how many days from factory production until the user turns ON the unit.
  • Page 113 (28) NUMBER OF RECEIVING TO PC The number of times received in the PC through the FAX serial interface (RS232C). (The number of pages received. If the unit does not have a PC interface, NONE will be printed.) (29) NUMBER OF SENDING FROM PC The number of times transmitted from the PC through the FAX serial interface (RS232C).

  • Page 114: Special Service Journal Reports

    2.4.7. SPECIAL SERVICE JOURNAL REPORTS Journal 2 and Journal 3 shown below, which are special journals giving the additional detailed information about the latest 35 communications, can be printed by Service Code 881 or 882. Remote printing function for the journal reports (JOURNAL, JOURNAL 2 and JOURNAL 3) is also available for service technicians.
  • Page 115 2. Look at NO. 04 in the JOURNAL 2. CNG (0003) indicates that the CNG signal has been received three times since the purchase date. For further details, see 2.4.7.1. JOURNAL 2() and 2.4.7.2. JOURNAL 3(). 2.4.7.1. JOURNAL 2 Refer to JOURNAL 2 in 2.4.7.3.
  • Page 116 message was received in memory due to "PAPER OUT" error. [NO RESPONSE DISAPPEARED ON JOURNAL] The "NO RESPONSE DISAPPEARED ON JOURNAL" displays the information about the last 10 communications terminated by "No Response". (Some of the communications terminated by "No Response"...

  • Page 118: Test Functions

    2.5. TEST FUNCTIONS The codes listed below can be used to perform simple checks of some of the unit’s functions. When complaints are received from customers, they provide an effective tool for identifying the locations and causes of malfunctions.
  • Page 119 CROSS REFERENCE: 2.5.1. DTMF SINGLE TONE TRANSMIT SELECTION() 2.5.2. BUTTON CODE TABLE() 2.5.3. PRINT TEST PATTERN()

  • Page 120: Dtmf Single Tone Transmit Selection

    Note: The numbers in the boxes (XXX) indicate the keys to be input for the various test modes. CROSS REFERENCE: 6.5. SENSORS AND SWITCHES() 2.5.1. DTMF SINGLE TONE TRANSMIT SELECTION Note: After performing this check, do not forget to turn the setting off. otherwise, dialing in DTMF signal will not work.

  • Page 121: Print Test Pattern

    Note: These codes (00, 01) are only for the data in the History Report. 2.5.3. PRINT TEST PATTERN 1. Platen roller (Reference pattern)
  • Page 122 2. Left margin/Top margin (Reference pattern)
  • Page 123 3. Thermal head 1 dot (Reference pattern)
  • Page 124 4. Use this test pattern to confirm the torque limiter for Ink film and platen roller timing. (Reference pattern)

  • Page 125: Adjusting The Feeder Pressure

    3. ADJUSTMENTS 3.1. ADJUSTING THE FEEDER PRESSURE If misfeeding of a document such as multiple feeding or no feeding occurs frequently, try to adjust the feeder pressure by following the steps below. 1. Open the front cover by pulling up the center part. 2.

  • Page 126: How To Remove The Bottom Frame

    pointed end, such as a paper clip. Left: When documents multiple feed. Center: Standard position (pre-selected) Right: When documents do not feed. 3. Close the front cover securely. 4. DISASSEMBLY INSTRUCTIONS 4.1. HOW TO REMOVE THE BOTTOM FRAME...

  • Page 127: How To Remove The Operation Panel Block

    4.2. HOW TO REMOVE THE OPERATION PANEL BLOCK...

  • Page 128: How To Remove The Operation Board And Lcd

    4.3. HOW TO REMOVE THE OPERATION BOARD AND LCD...
  • Page 129 4.4. HOW TO REMOVE THE ANALOG, DIGITAL AND POWER BOARDS AND AC INLET...

  • Page 130: How To Remove The Motor Block

    4.5. HOW TO REMOVE THE MOTOR BLOCK...

  • Page 132: How To Remove The Separation Roller

    4.6. HOW TO REMOVE THE SEPARATION ROLLER...

  • Page 133: How To Remove The Image Sensor (Cis)

    4.7. HOW TO REMOVE THE IMAGE SENSOR (CIS)

  • Page 134: How To Remove The Termal Head

    4.8. HOW TO REMOVE THE TERMAL HEAD...
  • Page 135 4.9. HOW TO REMOVE THE PLATEN ROLLER, BACK COVER...

  • Page 136: How To Remove The Pickup Roller

    4.10. HOW TO REMOVE THE PICKUP ROLLER...

  • Page 137: How To Remove The Cassette Plate

    4.11. HOW TO REMOVE THE CASSETTE PLATE...

  • Page 138: How To Remove The Document Tray

    4.12. HOW TO REMOVE THE DOCUMENT TRAY...

  • Page 139: Installation Position Of The Lead Wires

    4.13. INSTALLATION POSITION OF THE LEAD WIRES...

  • Page 140: How To Replace The Flat Package Ic

    5. HOW TO REPLACE THE FLAT PACKAGE IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

  • Page 141: Flat Package Ic Removal Procedure

    Temperature of Copper Rod 662 ± 50°F (350 ± 10°C) / (An expert may handle a 60~80 W iron, but a beginner might damage the foil by overheating.) - Flux / HI115 Specific gravity 0.863 / (Original flux should be replaced daily.) 5.2.

  • Page 142: Flat Package Ic Installation Procedure

    3. While the solder melts, remove it together with the IC pins. When you attach a new IC to the board, remove all solder left on the land with some tools like a soldering wire. If some solder is left at the joint on the board, the new IC will not be attached properly.

  • Page 143: Bridge Modification Procedure

    3. Solder the pins, sliding the soldering iron in the direction of the arrow. 5.4. BRIDGE MODIFICATION PROCEDURE 1. Lightly resolder the bridged portion. 2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below. 6.

  • Page 144: General Block Diagram

    6.2. GENERAL BLOCK DIAGRAM The following is an outline of each device IC on the digital board. (Refer to 6.2.1. GENERAL BLOCK DIAGRAM().). 1. ASIC (IC501) Composed mainly of an address decoder and a modem control.
  • Page 145 Controls the general FAX operations. Controls the operation panel I/F. Controls the thermal head I/F and CIS I/F. Performs the image processing. CPU and Real time clock Provides the reset pulse for each of the major ICs. 2. ROM (IC502) Contains all of the program instructions on the unit operations.

  • Page 146: Control Section

    6.7.1. ANALOG UNIT BLOCK DIAGRAM() 6.3. CONTROL SECTION 6.3.1. BLOCK DIAGRAM 6.3.2. MEMORY MAP...
  • Page 147 6.3.3. ASIC (IC501) This custom IC is used for the general FAX operations.

  • Page 148: Analog Unit

    1. CPU: This model uses a Z80 equivalent to the CPU operating at 8 MHz. Most of the peripheral functions are performed by custom- designed LSIs. Therefore, the CPU only works for processing the results. 2. RTC: Real Time Clock 3.
  • Page 150 Note*: This memory is incorporated into the ASIC (IC501) and used for the image processing. Fig. A shows the memory map of the Image Data RAM. 6.3.4. ROM (IC502) This 512KB ROM (EPROM or MASKROM) carries a common area of 32KB and bank areas which each have 8KB (BK4~BK63).
  • Page 151 SIGNAL POWER DESCRIPTION SUPPLIED VOLTAGE F2/OP OUTPUT PORT (HSTXMUTE) FR/OP OUTPUT PORT (ON-MREN) INPUT PORT (CISSEL) VDD (5V) POWER SOURCE (+5V) POWER SOURCE (GND) INPUT PORT (MPOS) IRDATXD/IOP OUTPUT PORT (CISON) OUTPUT PORT (THON) IRDARXD/ IOP80 TXD/IOP OUTPUT PORT (TONFIEN) RXD/IOP OUTPUT PORT (MDMRXEN) XRTS/IOP...
  • Page 152 TEST3 HIGH FIXED...
  • Page 153 SIGNAL POWER DESCRIPTION SUPPLIED VOLTAGE TEST4 HIGH FIXED XMDMINT MODEM INTERRUPT XMDMCS MODEM CHIP SELECT POWER SOURCE (GND) VDD (3.3V) 3.3V POWER SOURCE (3.3V) XRAS/IOP DRAM (IC503) ROW ADDRESS STROBE XCAS1/IOP DRAM (IC503) CULUM ADDRESS STROBE XCAS2/IOP OUTPUT PORT (MDMRST) XRESCS2 NOT USED CPU DATA BUS 3...
  • Page 154 RBA4 ROM/RAM BANK ADDRESS 4...
  • Page 155 SIGNAL POWER DESCRIPTION SUPPLIED VOLTAGE RBA5 ROM/RAM BANK ADDRESS 5 RBA6/IOP96 OUTPUT PORT(TONE2EN) STB1 STROBE SIGNAL OUTPUT TO THERMAL HEAD STB2 STROBE SIGNAL OUTPUT TO THERMAL HEAD STB3 STROBE SIGNAL OUTPUT TO THERMAL HEAD XRESET RESET INPUT XORESET RESET OUTPUT VDD (5V) POWER SOURCE (+5V) POWER SOURCE (GND)

  • Page 156: Reset Circuit (Watch Dog Timer)

    SIGNAL POWER DESCRIPTION SUPPLIED VOLTAGE 3.3V ANALOG PART STANDARD VOLTAGE SIGNAL VREFT 3.3V A/D CONVERTER’S FULL SCALE VOLTAGE OUTPUT 6.3.7. RESET CIRCUIT (WATCH DOG TIMER) The output signal from pin 1 of the voltage detect IC (IC509) is input to the ASIC (IC501) 112 pin. Then the output signal from pin 109 of the ASIC (IC501) resets the ASIC.

  • Page 157: Sram And Rtc Backup Circuit

    becomes low level. The terminal of the 'WDERR' signal is connected to the reset line, so the 'WDERR' signal works as the reset signal. 6.3.8. SRAM AND RTC BACKUP CIRCUIT 1. Function This unit has a lithium battery (BAT501) which works for the SRAM (IC504) and Real Time Clock IC (RTC: inside IC501).

  • Page 158: Supervision Circuit For The Thermal Head Temperature

    6.3.9. SUPERVISION CIRCUIT FOR THE THERMAL HEAD TEMPERATURE 1. Function The thermistor changes the resistor according to the temperature and uses the thermistor's characteristics. The output of pin 137 of IC501 becomes a low level. Then when it becomes a high level, it triggers point A In point C, according to the voltage output time, the thermal head's temperature is detected.

  • Page 159: Facsimile Section

    CROSS REFERENCE: 6.4.3. THERMAL HEAD() 6.4. FACSIMILE SECTION 6.4.1. IMAGE DATA FLOW DURING FACSIMILE OPERATION Copy (Fine, Super-Fine, Half Tone) 1. Line information is read by CIS (to be used as the reference white level) via route1, and is input to IC501. Refer to 6.4.2.
  • Page 160 route4 and route5, it is stored in RAM as shading data. 3. The draft’s information that is read by CIS is input to IC501 via route1. After it is adjusted to a suitable level for A/D conversion via route2, the draft’s information is converted to A/D (8 bit), and it is input to the Image Processing Section.
  • Page 161 demodulated to parallel digital data. Then the CPU (IC501) stores the data in the communication buffer DRAM (IC503) along route12. 2. The data stored in DRAM (IC503) is decoded by the CPU (IC501) via route12, and is stored in DRAM (IC503) via routes13 and 5. 3.
  • Page 162 2. Circuit Operation Refer to the block diagram and the timing chart on the following page. There are 9 driver ICs aligned horizontally on the thermal head and each one of these ICs can drive 192 heat-emitting registers. This means that one line is at a density of 192×9=1728 dots=(8 dots/ mm).

  • Page 163: Scanning Block

    according to IC501 pin 2. Depending on that value, the strobe width is recorded in ROM (IC502). Accordingly, the strobe width is determined.] When the thermal head is not used, the IC501 (23, THON) becomes low , Q501 turns OFF, IC506 turns OFF, and the +24V power supply for the thermal head driver is not impressed to protect the IC.

  • Page 164: Stepping Motor Drive Circuit

    When an original document is inserted and the start button pressed, pin 37 of IC501 goes to a high level and the transistor Q37 turns on.This applies voltage to the LED array to light it. The contact image sensor is driven by each of the FTG-F1 signals output from IC501, and the original image illuminated by the LED array undergoes photoelectric conversion to output an analog image signal (SIG).
  • Page 165 Stepping Motor Drive Mode Function Mode Phase Pattern Speed Copy Standard or Fine 432 pps (t=1/432) Super Fine 216 pps (t=1/216) Paper Feed ——— 432 pps (t=1/432) Stand-by ——— None All phases are currently off.

  • Page 166: Gear Section

    When the motor suspends while it is in the receive mode (about 70~80 msec), pin 131 of ASIC IC501 becomes a low level and Q503 turns OFF. Then Q502 also turns OFF, and instead of +24 V, +5 V is supplied through D501 so that the motor is held in place. When the system is in the stand- by mode, all of the motor drive transistors turn OFF.

  • Page 167: Mode Operation

    6.4.6.2. MODE OPERATION Once a mode is selected, the Drive Motor Gear rotates clockwise (CW) and then the controlling positions of Swing Gears A, B and C determine which gears convey their drive power in each mode. A. Transmit mode (See Fig. A.) : Swing Gear A engages Gear E and conveys its power to the Separation Roller Gear through Gear G and sets the Separation Roller for feeding documents.
  • Page 168 Gear and Pick up Idler Gear. The Gear drive as follows: Swing Arm C engaging Gear H Platen Idler Gear Pick up Idler Gear Pickup roller Gear. The Pickup Roller picks up and pre- feeds a recording paper until the recording paper pushes up the Paper Top sensor* lever. Fig.
  • Page 169 D. Copy mode (See Fig. D.) : Documents pre-feeding Transmit mode go Recording paper feeding Pick up mode go. Next Swing Gear A and B engages Gear E and Gear C respectively and conveys these power to the Separation Roller Gear and the Platen Roller Gear. Then the Separation Roller feeds documents and the Platen Roller feeds recording paper for printing copier data.
  • Page 170 Note: See “Sensor Locations” in 6.5. SENSORS AND SWITCHES(). 6.4.6.3.2. TRANSMITTING DOCUMENTS...
  • Page 171 CROSS REFERENCE: 2.3.10. SENSOR SECTION(). 6.4.6.3.3. RECEIVING FAX...
  • Page 172 Note: See “Sensor Locations” in 6.5. SENSORS AND SWITCHES(). 6.4.6.3.4. COPYING...

  • Page 173: Sensors And Switches

    Note: See “Sensor Locations” in 6.5. SENSORS AND SWITCHES(). CROSS REFERENCE: 2.3.10. SENSOR SECTION() 6.5. SENSORS AND SWITCHES All of the sensor and switches are shown below.
  • Page 174 Sensor Sensor or Switch Message Error Sensor Circuit Name Location Operation SW352 Document set SW [CHECK DOCUMENT] Panel SW353 [REMOVE DOCUMENT] Document top SW Digital PCB SW501 Film End/Cover open [CHECK COVER] or [CHECK FILM] PS501 Paper Top [PAPER JAMMED] Analog P.C.B SW102 Motor Position...
  • Page 175 When a document is brought to the read position, the SW becomes ON, and the input signal of IC301-16 pin (Operation) becomes a low level. When there is no document at the read position, the SW becomes OFF, and the input signal of IC301-16 pin (Operation) becomes a high level.
  • Page 176 When the operation panel cover is closed and a film is set, the SW becomes ON, and the input signal of IC501-43 pin (Digital) becomes a low level. When the cover is opened, the SW becomes OFF, and the input signal of IC501-43 pin (Digital) becomes a high level.

  • Page 177: Modem Section

    5. [Paper top Sensor (PS501)] When the recording paper is loaded on the print head, the shelter plate shuts the sensor light, and the photo transistor becomes OFF. The input signal of IC501-44 pin becomes a high level. Usually, the shelter plate is lifted, the photo transistor becomes ON, and the input signal of IC501-44 pin becomes a low level.
  • Page 178 The unit uses a 1 chip modem (IC505) that serves as an interface between the control section for FAX transmission and reception and the telephone line. During a transmitting operation, the digital image signals are modulated and sent to the telephone line. During a receiving operation, the analog image signals which are received via the telephone line are demodulated and converted into digital image signals.
  • Page 179 error-free reception of transmission is possible. The scope of these facsimile applications is not limited simply to transmission of written statements. Through symbiotic linkages with other communication methods, it can be expected to expand to include integrated services. 3. Facsimile Call Time Series As shown in the following diagram, the facsimile call time series is divided into five phases.
  • Page 180 4. Concerning Transmission Time [Transmission Time] = [Control Time] + [ Image Transmission Time] + [Hold Time] Transmission time consists of the following. Control time: This is time at the start of transmission when the functions at the sending and receiving sides are confirmed, the transmission mode is established, and transmission and reception are synchronized.
  • Page 181 A. G3 Communication Signals (T. 30 Binary Process) For G3 Facsimile communication, this is the procedure for exchanging control signals between the sending and receiving machines both before and after transmission of image signals. Control signals at 300 bps FSK are: 1850 Hz...0, 1650Hz...1. / An example of a binary process in G3 communication is shown below.
  • Page 182 Bit No. DIS/DTC Transmitter --- T.2 operation Receiver --- T.2 operation Receiver --- T.2 operation T.2 IOC = 176 T.2 IOC = 176 Transmitter --- T.3 operation Receiver --- T.3 operation Receiver --- T.3 operation Reserved for future T.3 operation features Reserved for future T.3 operation features.
  • Page 183 Bit No. DIS/DTC 17, 18 Recording width capabilities Recording width (0, 0) 1728 picture elements along scan line 1728 picture elements along scan line length of length of 215 mm ± 1% 215 mm ± 1% (0, 1) 1728 picture elements along scan line 2432 picture elements along scan line length of length of...
  • Page 184 Bit No. DIS/DTC Validity of bits 17, 18 Recording width Bits 17, 18 are valid Recording width indicated by bits 17, Bits 17, 18 are invalid Recording width indicated by this field information Recording width capability 1216 picture Middle 1216 elements of 1728 picture elements along scan line length of 151 ±...
  • Page 185 Signal Identification Signal Format Function Training 1 ——————— A fixed pattern is transmitted to the receiving at a speed (2400 to 9600 bps) designated by DCS, and the receiving side optimizes the automatic equalizer, etc., according to this signal. ——————— Sends 0 continuously for 1.5 seconds at the same speed as the training signal.

  • Page 186: Modem Circuit Operation

    6.6.2. MODEM CIRCUIT OPERATION The modem (IC505) has all the hardware satisfying the ITU-T standards mentioned previously. When the ASIC IC501 (61) is brought to a low level, the modem (IC505) is chip-selected and the resistors inside IC are selected by the select signals from ASIC (IC501) ADR0-ADR4(pin 83~87). Commands are written through the data bus, and all processing is controlled by the ASIC (IC501) according to ITU-T procedures.

  • Page 187: Description Of Block Diagram In Analog Section

    units. Here, the internal equalizer circuit reduces the image signals to a long-distance receiving level. This is designed to correct the characteristics of the frequency band centered around 3 kHz and maintain a constant receiving sensitivity. It can be set in the service mode. Refer to 2.3.7.1.

  • Page 188: Ncu Section

    line transmission beep generation. The DTMF signal and beep are placed into the TX system. The ring tone passes through the analog switch and is output to the speaker via the power amplifier (IC102). 6.7.1. ANALOG UNIT BLOCK DIAGRAM 6.8. NCU SECTION 6.8.1.

  • Page 189: Handset Circuit

    1. Circuit Operation The reception signal output from the line transformer T101 is input to pin (2) of IC101 via C136, R111, C111 and R158 and then the signal is amplified at pin (1) of IC101 and sent to the reception system at 11.6dB.
  • Page 190 This circuit controls the conversation over the handset, i.e. the transmitted and received voices to and from the handset. Signal path (Transmission signal) Refer to 2.3.7.1. CHECK SHEET(). 3. Signal path (Reception signal) Refer to 2.3.7.1. CHECK SHEET(). 6.9.4. MONITOR CIRCUIT 1.

  • Page 191: Circuit Operation

    EXTERNAL TAM OPERATION UNIT OPERATION When the bell signal rings as many times as The length of the answering message the number memorized into the connected should be 8~16 seconds. answering machine (TAM), the answering While the message is being played, the unit machine is connected to the line and the starts to detect the CNG signal.(A) answering message is sent out to the line.

  • Page 192: Operation Board Section

    detection, PC101 (4) becomes low. (DC LOOP) L101 JJ103 L105 Tip1 (EXT.TAM) Ring 1 L104 RL101(5, 3) PC101(1, 2) L102 POS101 Ring 2. CNG/VOX signal detection circuit The CNG signal from the other party’s FAX is detected in MODEM IC505 (digital board). (Signal path) Refer to 2.3.7.1.

  • Page 193: Power Supply Board Section

    in the gate array (IC301). Density Normal Dark LED1 (IC301-22pin) 6.13. POWER SUPPLY BOARD SECTION This power supply board uses the switching regulator method. [Input Circuit] The input current goes into the input rectifier circuit through the filter circuit. The filter circuit decreases the noise voltage and the noise electric field strength.
  • Page 194 The following is an overview of how the power supply unit is controlled. The control method of this power supply unit is pulse width modulation. When Q is ON, the energy is charged in the transfer primary coil according to E .
  • Page 195 [Surge Absorber Circuit] This circuit is for absorbing surge voltage generated by the transformer. [Control Circuit and Detecting Circuit] The control circuit amplifies the output with increased voltage detected in the error detecting circuit. Then it drives the main transistor. In this power supply, the duty ratio is defined by changing the ON period of the main transistor.

  • Page 196: Fixtures And Tools

    AND DIODES 8. FIXTURES AND TOOLS...

  • Page 197: Cabinet, Mechanical And Electrical Parts Location

    9. CABINET, MECHANICAL AND ELECTRICAL PARTS LOCATION 9.1. OPERATION PANEL SECTION...

  • Page 198: Upper Cabinet Section

    9.2. UPPER CABINET SECTION...

  • Page 199: Back Cover Section

    9.2.1. BACK COVER SECTION 9.2.1.1. BACK COVER 1...
  • Page 200 9.2.1.2. BACK COVER 2...

  • Page 201: Lower/P.c.b. Section

    9.3. LOWER/P.C.B. SECTION...

  • Page 202: Motor Section

    CROSS REFERENCE: 9.1. OPERATION PANEL SECTION() 9.4. MOTOR SECTION...

  • Page 203: Actual Size Of Screws And Washer

    9.5. ACTUAL SIZE OF SCREWS AND WASHER 10. ACCESSORIES AND PACKING MATERIALS...

  • Page 204: Replacement Parts List

    11. REPLACEMENT PARTS LIST...

  • Page 205: Cabinet And Electrical Parts

    This replacement parts list is for KX-FP80C only. Refer to the simplified manual (cover) for other areas. Notes: 1. The marking (RTL) indicates that the Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time.
  • Page 206 Ref. No. Part No. Part Name & Description Remarks (11.1.1. OPERATION PANEL SECTION) PFGP1162T PANEL, LCD PFBE1005Z1 KNOB, JOG DIAL PFGG1045P1 GRILLE, OPERATION PANEL PFDN1040Z ROLLER, DOCUMENT EXIT PFHG1075Z SPACER, DOCUMENT SEPARATION PFDG1148Z GEAR, DOCUMENT EXIT ROLLER PFUS1229Z SPRING, DOCUMENT SEP PFHR1182Y ROLLER, DOCUMENT ADJUST PFUV1027X...
  • Page 207 Ref. No. Part No. Part Name & Description Remarks PFKV1025Y1 COVER, UPPER TURN PFHG1088Z RUBBER, PAPER SEPARATION PFHX1339Z INSULATOR, STATIC PFUA1025W CHASSIS, UPPER TURN PFUS1244Z SPRING, EARTH PFHR1187Z GUIDE, CORNER (LEFT) PFHR1188Z GUIDE, CORNER (RIGHT) PFDN1042Z ROLLER, PICKUP PFDG1163Z GEAR, PICKUP ROLLER PFKR1017Z1 GUIDE, DOCUMENT (RIGHT) PFDR1012Z...
  • Page 208 PFDE1129Z LEVER, PAPER TOP SENSOR Ref. No. Part No. Part Name & Description Remarks PFBH1014Z1 BUTTON, HOOK PFHX1359Y COVER, SHEET PFUS1239Z SPRING, SPEAKER PFJS02Q68Z CONNECTOR, 2P PFAS50P003Z SPEAKER PFDR1014Z ROLLER, DOCUMENT SEPARATION PFDE1133Z SPACER, DELAY PFDF1050Z SHAFT, DOCUMENT SEPARATION Not Used Not Used PFHX1382Z SPACER...

  • Page 209: Digital Board Parts

    Ref. No. Part No. Part Name & Description Remarks PFPN1209Y CUSHION, RIGHT PFPN1208Z CUSHION, LEFT XZB20X35A04 PROTECTION COVER PFPH1011Z PACKING SHEET XZB32X45A04 PROTECTION COVER 11.2. DIGITAL BOARD PARTS Ref. No. Part No. Part Name & Description Remarks PCB1 PFWP1FP80C DIGITAL BOARD ASS'Y (RTL) PCB1-1 PFWP2FP80M DIGITAL BOARD ASS'Y (RTL) [without ROM]...
  • Page 210 Ref. No. Part No. Part Name & Description Remarks DA501 MA141WK DIODE(SI) (BATTERY) BAT501 PFSU1004Z BATTERY (COILS) L506 PQLQR1ET COIL L508 PQLQR1RM601 COIL L509 PQLQR2KA20T COIL L512 PQLQR2KA20T COIL (COMPONENTS COMBINATIONS) RA501 EXB38V101JV COMPONENTS PARTS RA502 EXB38V101JV COMPONENTS PARTS RA503 EXB38V101JV COMPONENTS PARTS RA504...
  • Page 211 Ref. No. Part No. Part Name & Description Remarks (RESISTORS) R501 ERJ3GEYJ562 5.6k R502 ERJ3GEYJ472 4.7k R508 ERJ3GEYJ102 R509 ERJ3GEY0R00 R510 ERJ3GEYJ101 R513 ERJ3GEYJ101 R514 ERJ3GEYJ821 R515 ERJ3GEYJ101 R516 ERDS1VJ152 1.5k R517 ERJ3GEYJ102 R518 ERJ3GEYJ102 R519 ERJ3GEYJ473 R520 ERJ3GEYJ473 R522 ERJ3GEYJ223 R523 ERJ3GEYJ823...
  • Page 212 Ref. No. Part No. Part Name & Description Remarks R561 ERJ3GEYJ472 4.7k R562 ERJ3GEYJ271 R563 ERJ3GEYJ224 220k R564 ERJ3GEYJ103 R565 ERJ3GEYJ823 R566 ERJ3GEYJ102 R568 ERJ3GEYJ103 R569 ERJ3GEYJ103 R570 ERJ3GEYJ123 R571 ERJ3GEYJ474 470k R572 ERJ3GEYJ104 100k R573 ERJ6ENF4752 4.7M R574 ERJ3GEYJ473 R575 ERJ3GEYJ103 R576...
  • Page 213 Ref. No. Part No. Part Name & Description Remarks C509 ECUV1H561JCV 560P C510 ECUV1H104ZFV C511 ECUV1H103KBV 0.01 C512 ECUV1H102KBV 0.001 C513 ECUV1H104ZFV C514 ECUV1H104ZFV C515 ECUV1H104ZFV C516 ECUV1H104ZFV C517 ECUV1H104ZFV C518 ECUV1H222KBV 0.0022 C519 ECUV1C104KBV C520 ECUV1H104ZFV C522 ECUV1C104KBV C523 ECUV1H120JCV C524 ECUV1H104ZFV...

  • Page 214: Analog Board Parts

    Ref. No. Part No. Part Name & Description Remarks C565 ECUV1H331JCV 330P C566 ECEA1CK101 C567 ECUV1H222KBV 0.0022 C568 ECUV1H103KBV 0.01 C570 ECUV1C683KBV 0.068 C571 ECUV1C104KBV C572 ECUV1C104KBV C573 ECUV1C104KBV C574 ECEA0JK221 C575 ECUV1C104KBV C576 ECUV1C104KBV C577 ECUV1C123KBV 0.012 C578 ECUV1H104ZFV C579 ECUV1C104KBV C580...
  • Page 215 Ref. No. Part No. Part Name & Description Remarks PCB2 PFWP3FP80M ANALOG BOARD ASS'Y (RTL) Refer to 9.3. LOWER/P.C.B. SECTION(). (ICS) IC101 PFVINJM2904M IC102 PQVINJM2113M (TRANSISTORS) Q101 2SC4155S TRANSISTOR(SI) Q102 2SC4155R TRANSISTOR(SI) Q103 PQVTDTC143E TRANSISTOR(SI) (DIODES) D101 MA4056 DIODE(SI) D102 MA4056 DIODE(SI) D103...
  • Page 216 Ref. No. Part No. Part Name & Description Remarks PC102 PQVIPC814K PHOTO ELECTRIC TRANSDUCER (SWITCHES) SW101 ESE14A211 SWITCH SW102 PFSH1A002Z SWITCH (VARISTORS) SA101 PFRZRA311P6T VARISTOR SA102 PFVDRA102M VARISTOR (THERMISTOR) POS101 PFRT002 THERMISTOR (RELAY) RL101 PFSL001Z RELAY (TRANSFORMER) T101 PFLT8E010 TRANSFORMER (RESISTORS) R101 ERG2SJ151...
  • Page 217 Ref. No. Part No. Part Name & Description Remarks R128 ERJ3GEYJ222 2.2k R129 ERJ3GEYJ101 R130 ERJ3GEYJ331 R131 ERJ3GEYJ473 R132 ERJ3GEYJ223 R133 ERJ3GEYJ103 R134 ERJ3GEYJ103 R135 ERJ6GEY0R00 R136 ERJ3GEYJ154 150k R137 ERJ3GEYJ114 110k R138 ERJ3GEYJ562 5.6k R139 ERJ3GEYJ564 560k R140 ERJ3GEYJ334 330k R141 ERJ3GEYJ103...

  • Page 218: Operation Board Parts

    Ref. No. Part No. Part Name & Description Remarks C132 ECUV1H102KBV 0.001 C134 PQCUV1E104MD 0.1 C135 ECUV1H104ZFV C136 ECUV1H153KBV 0.015 C140 ECUV1H103KBV 0.01 C141 ECUV1H103KBV 0.01 C151 ECEA1CKS470 C154 ECUV1H681KBV 680P C155 ECUV1H681KBV 680P 11.4. OPERATION BOARD PARTS Ref. No. Part No.
  • Page 219 Ref. No. Part No. Part Name & Description Remarks R382 ERDS2TJ101 R316 ERJ3GEYJ472 4.7k R317 ERJ3GEYJ101 R318 ERJ3GEYJ4R7V (CAPACITORS) C302 ECUV1C104KBV C303 ECEA0JKS101 C304 ECUV1C104KBV C310 ECUV1C104KBV C311 ECUV1C104KBV C314 ECUV1C104KBV C305 ECUV1H331JCV 330P C361 PQCBS1H331KB 330P C308 ECUV1H331JCV 330P C309 ECUV1H331JCV 330P...

  • Page 220: Power Supply Board Parts

    Ref. No. Part No. Part Name & Description Remarks SW320 PQSH1A105Z SWITCH SW322 PQSH1A105Z SWITCH SW323 PQSH1A105Z SWITCH SW324 PQSH1A105Z SWITCH SW326 PQSH1A105Z SWITCH SW329 PQSH1A105Z SWITCH SW330 PQSH1A105Z SWITCH SW333 PQSH1A105Z SWITCH SW334 PQSH1A105Z SWITCH SW335 PQSH1A105Z SWITCH SW351 EVEGB141112B SWITCH 11.5.
  • Page 221 Ref. No. Part No. Part Name & Description Remarks (COMPONENTS PARTS) L103 EXCELDR35 COMPONENTS PARTS (CONNECTORS) CN31 PQJP2D98Z CONNECTOR, 2PIN CN301 PQJP7G30Z CONNECTOR, 7PIN (FUSE) F101 PQBA1C50NBKL FUSE (PHOTO ELECTRIC TRANSDUCERS) PC101 0N3131SKU PHOTO ELECTRIC TRANSDUCER (TRANSFORMER) T101 PFLTSRW2820E TRANSFORMER (VARIABLE RESISTOR) VR201 EVNDJAA03B53...
  • Page 222 R128 PQ4R10XJ181 Ref. No. Part No. Part Name & Description Remarks R136 PQ4R10XJ393 R137 PQ4R10XJ393 R202 ERG2SJ152 1.5k R203 ERDS2FJ470 R221 PQ4R10XJ222 2.2k R222 PQ4R10XJ222 2.2k R223 PQ4R10XJ101 R224 PQ4R10XJ273 R225 PQ4R10XJ332 3.3k (CAPACITORS) C101 ECQU2A104MV C102 ECQU2A473MG 0.047 C103 PFKDE2GA102K 0.001 C105 PFKDE2GA222M 0.0022...

  • Page 223: For The Schematic Diagrams

    Ref. No. Part No. Part Name & Description Remarks PQZZ2K12Z CONNECTOR, 2P PFZZ10K1Z CONNECTOR, 10P PFZZ15K1Z CONNECTOR, 15P PQZZ7K5Z CONNECTOR, 7P PFZZ11K13Z CONNECTOR, 11P PFZZ5K13Z CONNECTOR, 5P PQZZ11K4Z CONNECTOR, 11P PQZZ2K13Z CONNECTOR, 2P KM79811245C0 BASIC FACSIMILE TECHNIQUE (for training service technicians) Note: Tools and Extension Cords are useful for servicing.

  • Page 224: Power Supply Board

    13.6. POWER SUPPLY BOARD 14. SCHEMATIC DIAGRAM 14.1. DIGITAL BOARD 14.2. ANALOG BOARD 14.3. OPERATION BOARD 14.4. POWER SUPPLY BOARD TN (Q) KXFP80C /...
  • Page 225 (BOTTOM VIEW) PFUP1187Z Q103 L107 C104 C102 L104 L102 L105 L101 L108 C103 R141 L106 L109 R146 R142 R123 R130 C119 C121 C141 R145 Q102 C120 C128 C110 R131 C134 R140 R138 R129 R157 R136 R114 R113 R122 R121 R132 R118 C115 R156...
  • Page 226 (COMPONENT VIEW) CN103 CN102 D106 PFUP1187Z RL101 D105 L103 POS101 JJ104 J101 SA101 LF101 JJ105 C101 JJ102 JJ103 JJ106 JJ101 R104 PCB-CH R102 T101 D103 D104 J111 C118 J113 C117 D101 R110 J102 J114 D102 AUTO-CH J119 J122 J103 J120 J124 J115 J118...
  • Page 227 (COMPONENT VIEW) (BOTTOM VIEW) J321 R378 R377 R379 R303 C366 C311 C365 R305 J323 J322 R386 C314 LED301 R310 R318 J304 C310 R319 R311 J333 C361 LED302 C305 R312 J305 C364 J301 R320 J306 C363 C308 C309 R304 J335 R375 J336 J308 R302...
  • Page 228 (COMPONENT VIEW) (BOTTOM VIEW) SAF989UC CAUTION AC125V 5A C101 C101 F101 F101 AC125V 5A D104 D104 D103 D103 D102 D102 D101 D101 C102 C102 C103 C103 R137 R102 R102 R103 R103 C105 C105 C106 C106 IC101 R127 C124 R126 D107 D107 R105 R105...
  • Page 229 IC502 +3.3VBAT IC504 A[0] D[0] +5V/BAT +3.3V/BAT A[1] D[1] +3.3V +5VD A[0] D[0] A[2] D[2] +5VBAT C580 FAX TX Signal A[1] D[1] A[3] D[3] A[2] D[2] A[4] D[4] J100P C556 TO ANALOG A[3] D[3] A[5] D[5] FAX RX Signal K1000P +24V A[4] D[4]...
  • Page 230 R118 220K C115 FAX TX Signal T101-2 J82P FAX RX Signal 2.0V +5VA IC101 HANDSET, MONITOR C111 K0.1 R111 R101 L101 R158 C136 T101 JJ103 FAX RX K0.015 TO TEL LINE 100K 150(2W) C135 JJ101 CN102 R112 120K C112 K0.012 Z0.1 +2.0V LF101...
  • Page 231 TO DIGITAL CN301 RESET KSCLK +5V2 TO LCD KTXD CN302 LCD CONTRAST KRXD 1 GND KLATCH 2 +5V 3 V0 KSTART R301 JOG1 1 JOG1 4 RS JOG2 R376 2 GND 5 R/W TO COB +5V2 +5V1 +5V1 3 JOG2 R302 SW351 7 D0...
  • Page 232 Cycle = 12.4 µs T101 Cycle = 12.4 µs TRANS R104 -55V CN301 100K/1 D201 D102 D101 D106 C202 D103 D104 R128 1000p/1K Cycle = 12.4 µs R223 C205 Q101 R105 1/50 C102 0.22/2 270V IC201 0.047 R122 C103 D107 R125 R124 1000p...
  • Page 235 IC501 IMAGE SYSTEM SENSOR IC503 ANALOG SIGNAL PROCESSING SECTION DRAM IMAGE PROCESSING SECTION IC502 THERMAL HEAD CONVERTER MODEM IC505 TEL. LINE...
  • Page 237 LCD MODULE ASIC CN302 KSL0~4 CN504 CN301 GATE ARRAY IC501 IC301 KEYS KIN0~6 MATRIX XL11, 12 DOCUMENT TOP SW DOCUMENT SET SW DIGITAL BOARD OPERATION BOARD...
  • Page 238 Block Diagram Input Input Rectifier Circuit C106 R102 Output Circuit Kick-on Surge Circuit R103 Voltage absorber Circuit Converter circuit Circuit A-B Voltage Wave Form Q101 Surge absorber circuit Output Circuit Control C-D Voltage Wave Form Circuit IC101 O.C.L Over voltage G-H Voltage Wave Form Error Detecting Circuit...
  • Page 239 (BOTTOM VIEW) R526 SW501 C504 R527 Q509 Q504 IC511 C502 R529 R590 C585 IC506 R588 C579 C528 IC510 IC504 C578 R578 C564 R534 C516 R573 RESET C536 C558 +24MHz C513 +5V/BAT C537 C517 +3.3/BAT C559 C529 C521 L509 R537 PFUP1186Y...
  • Page 240 (COMPONENT VIEW) CN501 PS501 C592 C580 CN506 CN505 C501 Q508 +5VA R585 J502 R587 R502 C590 C563 R547 C503 +24V C588 R569 R546 Q501 R594 R597 R591 Q503 R570 C561 REF-CH R566 C548 IC508 IC502 C568 IC509 IC503 R572 C570 R565 C573 C556...

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