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Portable stereo cd system

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TD0404025C2

Portable Stereo CD System

RX-D27E

RX-D27EG

RX-D27EB

Traverse Deck: RAE0240Z-M Mechanism Series

Colour

(S)............Silver Type

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Summary of Contents for Panasonic RX-D27E

Page 1 TD0404025C2 Portable Stereo CD System RX-D27E RX-D27EG RX-D27EB Traverse Deck: RAE0240Z-M Mechanism Series Colour (S)....Silver Type...
Page 2: Specifications
SPECIFICATIONS Specifications RADIO Frequency Range 87.50~108.00 MHz (50 kHz steps) 522~1629 kHz (9 kHz steps) TAPE RECORDER Output Phones : 3.5 mm stereo Track System 4 track, 2 channel, stereo Monitor system Variable sound monitor Power output (RMS) 2.0W + 2.0W (MAX) Recording system AC bias Power Requirement...
Page 3: Before Repair And Adjustment
1. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C116, C216, C317 through a , 5 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screw driver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid over current.
Page 4 and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it. 3.
Page 5 Remote control transmitter..1 pc...
Page 6: Handling Precautions For Traverse Deck
4. Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). Handling of traverse deck (optical pickup) 1.
Page 7 4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. Grounding for electrostatic breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding. Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the sheet.
Page 9: Precaution Of Laser Diode
5. Precaution of Laser Diode CAUTION: This product utilizes a laser diode with the unit truned “ON”, invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100 W/VDE Laserradiation from pick up unit is safety level, but be sure the followings: 1.
Page 10 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist. 2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen. 3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken. 4. Nicht über längere Zeit in die Fokussierlinse blicken.
Page 11 6. Caution for AC Main Lead...
Page 16: Location Of Controls
7. Location of Controls 8. Self-Diagnostic Functions 8.1. Setting of the Self-Diagnostic Mode 1. Switch the SELECTOR to CD and set to TAPE STOP state. (CD PLAY STOP) 2. Press the /CLEAR for the first two seconds and followed by the FAST FORWARD keys for another two seconds without releasing the /CLEAR key, it shall enter into the Self-Diagnostic mode.
Page 17: Troubleshooting Guide
8.3. Display Content Abnormal Items Error Method of detection Display CLOSE SW abnormal Detect error during closing operation and memorised it as an error. REST SW abnormal Under normal operation (Self-Diagnostic Mode inclusive), this error occurs when the REST SW ON is not detected within the specified time (5000 ms) and shall be memorised.
Page 18: Operation Checks And Component Replacement Procedures
10. Operation Checks and Component Replacement Procedures 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures special ressembly procedures are described only when required. 3.
Page 19 3. Checking for Deck P.C.B and Tuner P.C.B. 4. Replacement of Pinch Roller, Eraser Head, Record / Play back Head. 5. Replacement of Motor, Main Belt, Forward Belt. 6. Replacement of Traverse Deck. 7. Replacement of CD Cover. 8. Replacement of Cassette Cover. 9.
Page 23 10.3. Removal of the back cabinet and front cabinet...
Page 26 10.4. Removal of the main P.C.B.
Page 28 10.5. Removal of the power transformer...
Page 29 10.6. Replacement of the cassette cover...
Page 31 10.7. Removal of the sensor cover and LED P.C.B.
Page 32 10.8. Removal of the speaker...
Page 33 10.9. Removal of the rod ANT...
Page 34 10.10. Removal of the LCD ass’y...
Page 35 10.11. Removal of the LCD holder...
Page 36 10.12. Removal of the LCD P.C.B.
Page 37 10.13. Removal of the LCD lid...
Page 40 10.14. Removal of the up ornament...
Page 42 10.15. Removal of the mechanism ass’y...
Page 43 10.15.1. Replacement of Pinch Roller, Eraser Head, Record / Play back Head Replacement of Pinch Roller Remove a catch to remove the pinch roller upward.
Page 44 Notes : For pinch roller installation The spring of the pinch roller should fit in the dented part of the lever.
Page 45 Replacement of Record/Replay Head Remove the two screws (b) and remove the record/replay head. Replacement of Erase Head Remove the two catches and remove the erase head.
Page 46 10.15.2. Replacement of Motor, Main Belt, Forward Belt...
Page 47 Step 1 : Remove the connector. Step 2 : Remove the solders of the lead wire. Step 3 : Remove the screws. Step 4 : Remove the motor control circuit board.
Page 48 Step 5 : Remove the screw. Step 6 : Remove the motor and the motor angle. Step 7 : Remove the screws.
Page 49 Step 8 : Remove the motor angle. Step 9 : Remove the forward belt. 10.15.2.1. Installation of Main Belt...
Page 50 Step 1 : Position a main belt as picture shown temporarily. Step 2 : Install the motor and the motor angle to the mechanism unit. Step 3 : Fasten with a screw.
Page 51 Step 4 : Hang the main belt to the motor pulley. 10.16. Replacement of Traverse Deck...
Page 56 10.17. Remove of the CD servo P.C.B.
Page 60 10.18. Troubleshooting for Cassette Tape Entanglement...
Page 61 10.19. Check for Main P.C.B. and CD Servo P.C.B.
Page 65 11. Type Illustration of IC’s, Transistors and Diodes 12. Schematic Diagram Notes...
Page 66 Importance safety notice: Components identifed by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high- quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of...
Page 67: Schematic Diagram
components, be sure to use only manufacturer’s specified parts shown in the parts list. Caution! IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. Cover the parts boxes made of plastics with aluminium foil. Put a conductive mat on the work table.
Page 68 Signal Generator or Sweep Radio Dial Indicator (Electronic Adjustment Remarks Generator Setting Voltmeter or (Shown in Oscilloscope) Fig.1) Connections Frequency 603 kHz Fashion a loop of Point of non- Headphone Jack (32 [*1] L4 ( AM Adjust for several turns of interference.(on/ Fabricate the plug as ANT Coil)
Page 69 Test Tape Iindicator (Electronic Adjustment Remark Voltmeter or Oscilloscope) 1. Insert a test tape and start playback in the forward direction. ATT-113CN ( 8 Headphone Jack (32 Azimuth 2. Adjust the azimuth screw for maximum waveform on the kHz, -10 dB ) Fabricate the plug as Screw oscilloscope and the similar output on L and R channels.
Page 70 BIAS FREQUENCY ADJUSTMENT (DECK) 1. Set the unit to TUNER mode. 2. Insert the Normal blank tape (QZZCRA) into DECK and set the unit to “REC” mode (use “ REC/STOP” key). 3. Adjust L1001 so that the output frequency is within the standard value. 16.2.
Page 71: Terminal Functions Of Ics
17. Terminal Functions of ICs IC302 (C1BB00000717) Sound Mark Function VIN1 I 1 ch volume input terminal VIN2 I 2 ch volume input terminal SEL2 O 2 ch input selector output terminal SEL1 O 1 ch input selector output terminal I 1 ch input terminal A I 2 ch input terminal A I 1 ch input terminal B...
Page 72 IC701 (AN22003A-NF) RF AMP Mark Function I APC amp input terminal O APC amp output terminal - Vcc terminal EQSW - RFchange terminal RF OUT O RF add operation output terminal RF IN I AGC input terminal CAGC - AGC loop filter terminal O AGC output terminal - HPF capacitance connect terminal...
Page 73 IC703 (AN8739SBE2) Drive IC Mark Function /RST O Reset output terminal - NO Connection I Motor driver 2 intput terminal I PC2 power cutintput terminal - NO Connection I Motor driver 1 intput terminal PVCC1 - Driver VCC terminal 1 PGND1 - Driver GND terminal 1 - NO Connection...
Page 74 IC801 (MN101C54ATA)
Page 75 Mark Function VLC1 - LCD bias VLC2 - LCD bias VLC3 - LCD bias - NO Connection - NO Connection MUTE_A O Muting signal A PCONT O Power control output MBP1 O Beat proof control 1 MBP2 O Beat proof control 2 NATRST I Connect to GND - GND...
Page 76: Mechanism Parts Location
18. Mechanism Parts Location 19. Cabinet Parts Location 20. Packaging 21. Replacement Parts List Notes: Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high- quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of components, be sure to use only manufactures specified parts shown in the parts list.
Page 77 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks MECHANISM PARTS RUP0003 SCREW RVD0001 BASE ASSEMBLY RUP0004 SCREW RFY905ZA SWITCH ACTUATOR RUP0005 SCREW RFY881ZA PUSH BUTTON ACTUATOR RUP0006 SCREW RFY896ZA REC BUTTON LEVER RUP0007 SCREW RUM0004...
Page 78 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks REET0004 CD FFC 17P RPNT0468 POLYFOAM RMNT0091 LCD HOLDER MECHANISM XTV3+12G SCREW MEC1 RAA4601-Z DECK MECHANISM ASS’Y RMKW0003A DUMP GEAR HOLDER P.C.B. ASS’Y RDG0288 DUMPER GEAR PCB1...
Page 79 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks D310 RVD1SS133TA SWITCHING DIODE CS802 RJS6T5ZA SESOR CONNECT D311 MAZ41300MF DIODE CN1004 RJP4G17ZA CONNECTOR D313 RVD1SS133TA SWITCHING DIODE TRIMMER CAPACITOR D320 RB441Q40T77 DIODE ECRLA010A53R TRIMMER CAPACITOR...
Page 80 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ104V CHIP RESISTOR R217 ERDS2TJ332T CARBON FILM RESISTOR ERJ3GEYJ680V CHIP RESISTOR R218 ERDS2TJ181T CARBON FILM RESISTOR ERJ3GEYJ104V CHIP RESISTOR R301 ERDS2TJ223T CARBON FILM RESISTOR ERJ3GEYJ104V CHIP RESISTOR R302...
Page 81 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R375 ERDS2TJ333T CARBON FILM RESISTOR R817 ERDS2TJ104T CARBON FILM RESISTOR R601 ERDS2TJ152T CARBON FILM RESISTOR R818 ERDS2TJ102T RESISTOR R602 ERDS2TJ222T CARBON FILM RESISTOR R819 ERDS2TJ102T RESISTOR...
Page 82 Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks ECUV1H102KBV CHIP CAP. C109 ECA1HMR47BV E-CAP ECUV1H070DCV CHIP CAPACITOR C110 ECUV1C473KBV CHIP CAP. ECUV1E103KBV CHIP CAP. C111 ECA1HMR47BV E-CAP C112 ECUV1H102KBV CHIP CAP. ECUV1E103KBV CHIP CAP.
Page 83 Ref. No. Part No. Part Name & Description Remarks C701 EEE0JA330WR CAPACITOR C702 ECUV1C104KBV CHIP CAP C703 EEE0JA101WR CAPACITOR C704 ECUV1C104KBV CHIP CAP C705 ECUV1E104ZFV CHIP CAPACITOR C706 ECUV1C104KBV CHIP CAP C707 ECUV1C223KBV CHIP CAPACITOR C708 ECUV1C104KBV CHIP CAP C710 ECUV1H471JCV CHIP CAPACITOR C711...

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