Toshiba FT-8809 Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Cordless Telephone
  5. FT-8809
  6. Service manual
Toshiba FT-8809 Service Manual

Toshiba FT-8809 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

FILE NO. 2B0-9902
SERVICE MANUAL
CORDLESS TELEPHONE
FT-8809
PUBLISHED IN JAPAN, Aug., 1999

Advertisement

Table of Contents
loading

Related Manuals for Toshiba FT-8809

Summary of Contents for Toshiba FT-8809

  • Page 1 FILE NO. 2B0-9902 SERVICE MANUAL CORDLESS TELEPHONE FT-8809 PUBLISHED IN JAPAN, Aug., 1999...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ......................1 OPERATING CONTROLS ......................2 ALIGNMENT PROCEDURE ......................3 BLOCK DIAGRAMS ........................7 SCHEMATIC DIAGRAMS ......................9 TROUBLESHOOTING HINTS ....................13 IC AND TRANSISTOR VOLTAGE CHART ................20 SEMICONDUCTOR LEAD IDENTIFICATION ................25 ELECTRICAL PARTS LOCATION ..................... 27 WIRING DIAGRAMS .........................

  • Page 3: Operating Controls

    OPERATING CONTROLS HANDSET CONTROLS AND FUNCTIONS Antenna VOL/RING Button Liquid Crystal Display (LCD) REDIAL Button SELECT Button TALK Button CID (Caller ID) Button Battery compartment Dialpad (TONE) Button MEM (Memory) Button PAUSE Button FUNC (Function) Button DELETE , CH Button Charging contacts BASE UNIT CONTROLS AND FUNCTIONS TONE/PULSE Switch...

  • Page 4: Alignment Procedure

    ALIGNMENT PROCEDURE Base Unit Transmitter Section BASE Unit AF GEN. Test Point Power Meter Connections DC IN TEL Line 1kHz -20dBm 9V Jack Jack Test Point Frequency Counter AC 120V Adapter 60Hz Deviation Mater Preset a) Connect the base RF unit to the base main unit. b) Set the “TONE / PULSE”...
  • Page 5 Receiver Section Connections BASE Unit AC Voltmeter RF SG Dummy Load (600-ohm) TEL Line Test Point Jack DC Voltmeter DC IN 9V Jack Terminal AC 120V 60Hz Adapter Preset a) Connect the base RF unit to the base main unit. b) Set the “TONE/PULSE”...
  • Page 6 Handset Unit Transmitter Section Connection HANDSET Unit AF GEN. Test Point Power Meter J603 Battery 1kHz 9mV MIC+Pin Connector Test Point Frequency Counter DC Power Supply Deviation Mater DC 3.8V Preset a) Connect the handseet RF unit to the handset main unit. b) Connect DC power supply to battery connector on the handset unit.
  • Page 7 Receiver Section Connections HANDSET Unit AC Voltmeter RF SG Dummy Load (150-ohm) Connector Test Point DC Power Supply J603 DC Voltmeter Battery Terminal Connector DC 3.8V Preset a) Connect the handset RF unit to the handset main unit. b) Connect DC power supply to battery connector on the handset unit. c) Turn the DC power supply ON while pressing “...

  • Page 8: Block Diagrams

    BLOCK DIAGRAMS Base Unit...
  • Page 9 Handset...

  • Page 10: Schematic Diagrams

    SCHEMATIC DIAGRAMS Base Unit...
  • Page 11 Handset...

  • Page 12: Troubleshooting Hints

    TROUBLESHOOTING HINTS 1. The bell does not ring. See 2. The bell does not ring When the PAGE SW of the & page does not ring. base is pressed, does the ringer on the handset ring? When the TEL SG is joined Check IC4 and TEL network with the base to make bell circuit.
  • Page 13 2. The bell does not ring & page does not ring. Can the base and handset be See 3. The base and handset connected? cannot be connected. Press handset DIAL key When the key of the handset is Check IC603. while in TALK MODE.
  • Page 14 3. The base and handset cannot be connected. Check whether the base Check IC4 and its is able to set in the test peripheral circuit. mode 1. Check the TX POWER Check base RF unit. and the TX FREQUENCY on the base unit. Press “PAGE”...
  • Page 15 Press “3” key, check Check whether there is a C h e c k R 6 3 5 , R 6 3 6 , whether deviation of the 250 Hz data waveform at R 6 3 4 , R 6 3 2 , R 6 1 9 , TX data is app.
  • Page 16 4. Cannot make a phone call (pulse). Can the base and handset See 3. The base and handset be connected? cannot be connected. While in TALK MODE, press Check IC5. dial key of the handset. Check whether square waveform from pin 22 of IC5 is fed.
  • Page 17 6. Voice cannot be transmitted to other party (outgoing call). Can the base and handset be See 3. The base and handset connected? cannot be connected. The 1 kHz, 9.0mV sine Check Q604 and its wavefor m i s a p p l i e d t o peripheral circuit.
  • Page 18 7. The voice of the caller cannot be heard (incoming call). Can the base and handset be See 3. The base and handset connected? cannot be connected. The 1 kHz, 77.5mV sine Check the base TEL-line waveform is applied to TEL- circuit and REPLAY control line of the base, can the 1 kHz circuit.

  • Page 19: Ic And Transistor Voltage Chart

    IC AND TRANSISTOR VOLTAGE CHART Base Unit Unit[V] Unit[V] Ref. No. PIN STAND-BY TALK NOTE Ref. No. PIN STAND-BY TALK NOTE 0-3.2 0-3.2 PULSE RXMUTE TXMUTE 3.2/0 3.2/0 TONE/PULSE TXMUTE RXMUTE TALK CASENB 2.6-3.8 2.6-3.8 SINE WAVE 3.4-4.2 3.4-4.2 SINE WAVE 2.4-3.0 PULSE 2.5-3.0...
  • Page 20 Unit[V] Unit[V] Ref. No. PIN STAND-BY TALK NOTE Ref. No. PIN STAND-BY TALK NOTE 1.4-3.5 1.4-3.5 SINE WAVE 0.2-2.6 0.2-2.6 SINE WAVE SINE WAVE -0.2-2.2 -0.2-2.2 SINE WAVE 0.58p-p SINE WAVE 0.2-2.6 0.2-2.6 0-3.2 0-3.2...
  • Page 21 Unit[V] Ref. No. PIN STAND-BY TALK NOTE...
  • Page 22 Handset Unit[V] Unit[V] Ref. No. PIN STAND-BY TALK NOTE Ref. No. PIN STAND-BY TALK NOTE 0-2.8 0-2.8 1.4-3.0 -0.2-2.6 0.4-0.8 0.4-1.5 0.4-1.5 0-2.0 0.3-1.9 0.3-1.9 SINE WAVE 0-3.0 0-3.0 0-3.0 SINE WAVE 0-3.0 0-3.0 PULSE LCD- IC601 0-1.5 2.9/0 SP-VOL2 0-3.0 MIC-ON 0-1.5...
  • Page 23 Unit[V] Unit[V] Ref. No. PIN STAND-BY TALK NOTE Ref. No. PIN STAND-BY TALK NOTE Q602 0-0.2 IC603 Q603 IC604 Q604 IC605 0-0.3 Q609 0-3.7 2.3-3.7 SINE WAVE 0-3.0 0-2.9 2.2-2.9 SINE WAVE 0-2.5 2.2-2.8 Q610 0-2.5 2.3-2.8 0-2.5 Q611 0-2.5 IC606 0-3.0 0-1.5...

  • Page 24: Semiconductor Lead Identification

    SEMICONDUCTOR LEAD IDENTIFICATION Base Unit D1 /D4 / D5 / D8 / D9 D6 : LTL-16KPE / D12 / D15 / D16 / D17 : 1N4148 D3 : HZ33-2 D2 : HZK7C D11 : HZ6B2 D13 : HZ4B1 Anode Anode Cathode Cathode Cathode...
  • Page 25 Handset D602 / D604 D612 / D613 / D614 : PG3822K D610 / D611 : 1SS226 / D606 / D607 : RLS4148 Cathode / Anode D608 / D609 : HZK6C Cathode Anode Anode Cathode Cathode Anode D615 : RB420D Q600 / Q601 / Q602 / Q603 / Q604 / Q610 / Q611 / Q614 / Q616 / Q617 : 2SC1623 Cathode Q609 / Q613 : 2SA812(M)

  • Page 26: Electrical Parts Location

    ELECTRICAL PARTS LOCATION Base Unit Main PCB...
  • Page 27 Handset Main PCB...

  • Page 28: Wiring Diagrams

    WIRING DIAGRAMS Base Unit...
  • Page 29 Handset...

  • Page 30: Exploded View And Mechanical Parts List

    EXPLODED VIEWS AND MECHANICAL PARTS LIST Base Unit MAIN PCB ASSY RF MODULE (BASE) ANTENNA...
  • Page 31 Base Unit LOC. REF. PART NO. DESCRIPTION RC008363 GNBZ442428Z BUTTON, PUSH RC008361 GCAS342427Z CASE, BOTTOM RC008443 GCAS342426A CASE, TOP RC008315 HTML442330Z CHARGE TERMINAL C5191(PBP) RC002384 LFUT428079Z FOOT BUMPON SJ-5916 1.6T RC005526 GCAS456906Z HOOK RC008444 PLBB442830Z LABEL, BARCODE RC008317 PLBZ442784Z LABEL, INDICATION RC005180 PLBZ456717Z LABEL, INDICATION...
  • Page 32 Handset RF MODULE (HANDSET) MAIN PCB ASSY...
  • Page 33 Handset LOC. REF. PART NO. DESCRIPTION RC008371 RBLD442208Z BLIND RC008460 GNBZ342417Z BUTTON, FUNCTION (COMP) RC008459 GCAS242416Z CASE, FRONT RC008365 GCAS342429Z CASE, REAR RC008342 HTML442336Z CHARGE TERMINAL C2680(BSP) RC008909 GCAS458501Z COVER ELASTOMER RC008908 GCAS458500Z COVER, BATTERY RC008347 RCUM441150Z CUSHION MOLTPRENE,40*20*8 RC008348 RCUN442433Z CUSHION NEOPRENE...

  • Page 34: Parts List

    PARTS LIST PRODUCT SAFETY NOTE : Products marked with a have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice of this service manual. Don't degrade the safety of the product through important servicing. Symbol Symbol ±...
  • Page 35 LOC. REF. PART NO. DESCRIPTION RC004172 BCXT813925Z CERAMIC M/L (2125) TAPE 0.0039UF 50V K B RC002229 BCXT511045Z CERAMIC M/L (2125) TAPE 0.1UF 25V K B RC003193 BCXT815625Z CERAMIC M/L (2125) TAPE 0.0056UF 50V K B RC008431 BCBH817092Z CERAMIC M/L (2125) TAPE 7PF 50V D CH RC001068 BCXT811025Z CERAMIC M/L (2125) TAPE...
  • Page 36 LOC. REF. PART NO. DESCRIPTION C607 RC008296 BCSH901006Z TANTALUM CHIP TAPE 10UF 6.3V M C-122 C608 RC005202 BCML311045Z CERAMIC M/L (1608) TAPE 0.1UF 16V K B C609 RC008296 BCSH901006Z TANTALUM CHIP TAPE 10UF 6.3V M C-122 C610 RC005204 BCML811025Z CERAMIC M/L (1608) TAPE 0.001UF 50V K B C611 RC008446 BCSH311096Z TANTALUM CHIP...
  • Page 37 LOC. REF. PART NO. DESCRIPTION C668 RC005210 BCMM811014Z CERAMIC M/L (1608) TAPE 100PF 50V J CH C669 RC005210 BCMM811014Z CERAMIC M/L (1608) TAPE 100PF 50V J CH C670 RC005210 BCMM811014Z CERAMIC M/L (1608) TAPE 100PF 50V J CH C675 RC005202 BCML311045Z CERAMIC M/L (1608) TAPE 0.1UF 16V K B C676 RC005204 BCML811025Z CERAMIC M/L (1608) TAPE...
  • Page 38 LOC. REF. PART NO. DESCRIPTION IC's RC008278 BDEY3870003 LA8633VU-TLM RC004870 BDEY2768003 MC3361CDR2 RC000802 BDEY0577001 PC817 RC008434 BDDY0884001 UC2343 UPD75116HGC-194-AB8 RC005074 BDEY2937003 RH5VL28CA-T1 RC005516 BDEY1058003 LC7366NM-TP-T2 RC008435 BDEY3917003 SM8222BS-E2 IC601 RC008278 BDEY3870003 LA8633VU-TLM IC602 RC008322 BDEY3882003 TK11130SCL IC603 RC008449 BDDY0885001 UC2344 MB89538PFM-G-130-BND IC604 RC008861 BDEY2989003...
  • Page 39 LOC. REF. PART NO. DESCRIPTION Q612 RC002245 BDBC2714124 DB-718 2SC2714-Y TE85L Q613 RC008275 BDBA0812695 DB-035 2SA812(M)-M6A T1B Q614 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B Q616 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B Q617 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B RESISTORS RC002313 BRFC013314Z CARBON FIXED CHIP 330 1/10W J TAPING RC002615 BRFC011834Z CARBON FIXED CHIP...
  • Page 40 LOC. REF. PART NO. DESCRIPTION RC004972 BRPA614724Z CARBON AX TS 26 4.7K 1/6W J TAPING RC002311 BRFC012734Z CARBON FIXED CHIP 27K 1/10W J TAPING RC004174 BRPA611024Z CARBON AX TS 26 1K 1/6W J TAPING RC004174 BRPA611024Z CARBON AX TS 26 1K 1/6W J TAPING RC002296 BRFC011024Z CARBON FIXED CHIP...
  • Page 41 LOC. REF. PART NO. DESCRIPTION R107 RC008439 BRFC013343Z CARBON FIXED CHIP 330K 1/10W F TAPING R108 RC002306 BRFC012224Z CARBON FIXED CHIP 2.2K 1/10W J TAPING R109 RC002611 BRFC013324Z CARBON FIXED CHIP 3.3K 1/10W J TAPING R110 RC002306 BRFC012224Z CARBON FIXED CHIP 2.2K 1/10W J TAPING R111 RC002611 BRFC013324Z CARBON FIXED CHIP...
  • Page 42 LOC. REF. PART NO. DESCRIPTION R639 RC005284 BRFC163334Z CARBON FIXED CHIP 33K 1/16W J TAPING R640 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R641 RC005253 BRFC163324Z CARBON FIXED CHIP 3.3K 1/16W J TAPING R642 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R643 RC008029 BRFC163924Z CARBON FIXED CHIP...
  • Page 43 LOC. REF. PART NO. DESCRIPTION R696 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R697 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R698 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R699 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1/16W J TAPING R700 RC005239 BRFC161014Z CARBON FIXED CHIP...

  • Page 44: Assembly Parts List

    100X100X0.1T RC008719 VNYH1103000 VINYL BAG 100X300X0.05T HIPE ASSEMBLY PARTS LIST NOTE: Following part numbers are not available as replacement parts. Order parts necessary for repair or contact the Toshiba Factory Service Center. LOC. REF. PART NO. DESCRIPTION RC008469 AC221ZLBA MAIN PCB ASSEMBLY, BASE...

  • Page 45: Specifications

    SPECIFICATIONS MEASUREMENT CONDITIONS 1. Standard Voltage :Portable Unit ..DC 3.8V ± 0.025V :Base Unit ..AC 120V ± 3V 60Hz 2. Temperature :25℃ ± 5℃ 3. Channel FCC CH Portable(TX Frequency) Base(TX Frequency) 902.052464MHz 925.997470MHz 902.102465MHz 926.047470MHz 902.152465MHz 926.097470MHz 902.202465MHz 926.147470MHz 902.252465MHz...
  • Page 46 BASE UNIT RECEIVER UNIT NOMINAL LIMIT 1. Sensitivity 12 dB SINAD with CCITT Filter -115 < -107 2. Frequency Response (Ref:1kHz) 0.3kHz -0.5 -4.5~+3.5 3.0kHz -7.0 -11.0~-3.0 3. Distortion at 1 mV RF Input < 5 4. S/N ratio at 1 mV RF Input with CCITT Filter 60 <...
  • Page 47 PORTABLE UNIT RECEIVER UNIT NOMINAL LIMIT 1. Sensitivity 12 dB SINAD with CCITT Filter -115 < -107 2. Frequency Response (Ref:1kHz) 0.3kHz -3.5 -7.5~+0.5 3.0kHz -3.0 -7.0~+1.0 VOL. LOUD VOL. LOW+17(±2) 3. Audio Output Level VOL. HIGH VOL. LOW+10(±2) VOL. MEDIUM VOL.

Table of Contents