Toshiba FT-8509 Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Cordless Telephone
  5. FT-8509
  6. Service manual
Toshiba FT-8509 Service Manual

Toshiba FT-8509 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Teléfonos inalámbricos
Contenido y precauciones de seguridad
Controles de operación
FT-8509
Procedimientos de alineamiento
Diagrama a bloques
Diagramas esquemáticos
Procedimiento de localización de fallas
Carta de voltajes de transistores y de IC
Identificación de terminales de semiconductores
Localización de partes eléctricas
Diagramas de conexiones (alambrado)
Vistas explotadas y lista de partes mecánicas
Lista de partes
Lista de partes del ensamble
Especificaciones

Advertisement

Table of Contents
loading

Related Manuals for Toshiba FT-8509

Summary of Contents for Toshiba FT-8509

  • Page 1 Teléfonos inalámbricos Contenido y precauciones de seguridad Controles de operación FT-8509 Procedimientos de alineamiento Diagrama a bloques Diagramas esquemáticos Procedimiento de localización de fallas Carta de voltajes de transistores y de IC Identificación de terminales de semiconductores Localización de partes eléctricas Diagramas de conexiones (alambrado) Vistas explotadas y lista de partes mecánicas...
  • Page 2 ),/(#121#5%30<<36 6(59,&(#0$18$/ &25'/(66#7(/(3+21( )70;83< 38%/,6+('#,1#-$3$1/#$XJ1/#4<<<...

  • Page 3: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ......................1 OPERATING CONTROLS ......................2 ALIGNMENT PROCEDURE .......................3 BLOCK DIAGRAMS........................9 SCHEMATIC DIAGRAM ......................11 TROUBLESHOOTING HINTS ....................16 IC AND TRANSISTOR VOLTAGE CHART................23 SEMICONDUCTOR LEAD IDENTIFICATION ........

  • Page 4: Operating Controls

    OPERATING CONTROLS HANDSET CONTROLS AND FUNCTIONS Antenna TALK/BATT.LOW LED REDIAL Button TALK Button FLASH Button Dialpad TONE Button VOL/RING Button MEM Button CH Button PAUSE Button MUTE Button One-touch dialing Button ( MEM1 - MEM3 ) Rechargeable Battery Pac Charging Contact (back) BASE UNIT CONTROLS AND FUNCTIONS TONE/PULSE Switch...

  • Page 5: Alignment Procedure

    ALIGNMENT PROCEDURE Test Mode For Base Unit Press the “＊” and “#” keys at the same time about 1.5 seconds while turning the power on, the confirmation beep will sound to indicate that the unit is in the test mode. 1.
  • Page 6 Test Mode For Handset Unit To perform the TEST mode, turn the power ON by pressing the “＊” and “#” buttons at the same time. When entered the TEST mode, the bell rings and the unit enters TEST mode 1. (Refer to the following table.) 1.
  • Page 7 Base Unit Transmitter Section AF GEN. BASE Unit Test Point Power Connections Meter DC IN TEL Line 1kHz 77.6mV Jack 9V Jack Test Point Frequency Counter AC 120V 60Hz Adapter Deviation Meter Preset Place the Base unit in VCO/TX FREQ. ADJ mode in accordance with the procedure on page 3. Alignment Procedure step Adjustment...
  • Page 8 Receiver Section BASE Unit AC Voltmeter RF SG Dummy Load Connections (600-ohm) TEL Line Test Point Jack DC Voltmeter Terminal DC IN 9V Jack AC 120V 60Hz Adapter Preset Place the Base unit in RX SENS mode (step 4) in accordance with the procedure on page 3. Alignment Procedure step Preset to...
  • Page 9 Handset Unit Transmitter Section HANDSET Unit AF GEN. Power Test Point Connection Meter J401 Batter 1kHz 9mV Terminals MIC+Pin Test Point Frequency Counter DC Power Supply Deviation Meter DC 3.8V Preset Place the Handset in VCO/TX FREQ. ADJ mode in accordance with the procedure on page 4. Alignment Procedure step Adjustment...
  • Page 10 Receiver Section HANDSET Unit AC Voltmeter Connections RF SG Dummy Load (150-ohm) Test Point Connector J401 DC Power Supply DC Voltmeter Terminal Batter Terminal 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 11: Block Diagrams

    BLOCK DIAGRAMS Base Unit...
  • Page 12 Handset Unit...
  • Page 13 6&+(0$7,&#',$*5$06 %DVH#8QLW/#0DLQ...
  • Page 14 Base Unit, ke NOTES: 1. RESISTANCE VALUES ARE SHOWN IN OHMS UNLESS OTHERWISE NOTED. (K=KILO OHM, M=MEG OHM)
  • Page 15 +DQGVHW/#0DLQ...

  • Page 16: Troubleshooting Hints

    TROUBLESHOOTING HINTS 1. The bell does not ring. When the INTCOM key of See 2. The bell does not the base is pressed, does ring & page does not ring. the ringer on the handset ring? When the TEL SG is joined Check IC5 and TEL network with the base to make bell circuit.
  • Page 17 2. The bell does not ring & page does not ring. Can the base and handset See 3. The base and handset be connected? cannot be connected. Press handset DIAL key When the key of the handset Check IC404. while in TALK MODE. is pressed, can the pulse Can key touch sound be output at pin 38 of IC404 be...
  • Page 18 3. The base and handset cannot be connected. Check whether Check IC10 and its base is able to set in the peripheral circuit. test mode 1. Check the TX POWER Check base RF unit. and the TX FREQUENCY on the base unit. Set the base in the test Check whether there is Check RT3, R56, C60,...
  • Page 19 Set the handset in the Check whether there is Check RT403, R441, test mode 3, check a 250 Hz data R442, R443, R444, whether deviation of the waveform at C453. R445 and C453. TX data is app. 8 kHz Dev. Check handset RF unit.
  • Page 20 4. Will not dial out. (TONE) Check whether there is a Check IC10, Q15 and their DTMF waveform on Pin 1 of peripheral circuits. IC10. Check whether there is a Check IC1. DTMF waveform on Pin1 of IC1. (PULSE) Check whether there is a Check IC10 pulse on Pin 10 of IC10.
  • Page 21 5. TROUBLE WITH INTERCOM MODE 5-1. The voice from the Base unit cannot be heard on the Handset. Check whether there is an Check MC251 and IC7. audio waveform on Pin 4 of IC7. Check Pin 7 of IC6. 5-2. The voice from the Handset cannot be heard on the Base unit. Check whether there is an Check IC6.
  • Page 22 6. TROUBLE WITH SPEAKERPHONE MODE 6-1. The voice of the caller cannot be heard (INCOMING CALL). Check whether there is an Check IC1. audio waveform on Pin 7 of IC1. Check whether there is an Check IC6, RL1 and Q6. audio waveform on Pin 1 of IC6.

  • Page 23: Ic And Transistor Voltage Chart

    IC AND TRANSISTOR VOLTAGE CHART Base Unit Unit [V] Unit [V] Ref No. PIN STBY TALK NOTE Ref No. PIN STBY TALK NOTE FLOAT FLOAT 4.1-6.0 4.1-6.0 SINE WAVE 4.0-5.0 4.0-5.0 SINE WAVE 4.5-5.0 PULSE 4.5-5.0 1.5-3.0 2.0-2.4 0.3-2.0 0.5-0.8 OPEN 2.5-3.0 OPEN...
  • Page 24 Unit [V] Unit [V] Ref No. PIN STBY TALK NOTE Ref No. PIN STBY TALK NOTE 0.0/5.2 0.0/5.2 Depend on VOL SW 5.2/0.0 5.2/0.0 Depend on VOL SW 0.0/5.2 0.0/5.2 TONE/PULSE IC10 TX MUTE RX MUTE 0.0-0.5.0 0.0-0.5.0 SINE WAVE -0.4-5.0 -0.4-5.0 SINE WAVE...
  • Page 25 Unit [V] Ref No. PIN STBY TALK NOTE...
  • Page 26 Handset Unit [V] Unit [V] Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE 2.0(AC) 0-3.5 2.0(AC) OPEN OPEN IC401 0-0.3 OPEN OPEN OPEN OPEN 0-2.0 0-2.0 0-1.5 0-0.4 0-0.4 0-0.4 1.0-3.0 IC404 0-1.8 1.0-3.0 OPEN 0-3.0 0-1.0 IC403 0-3.0...
  • Page 27 Unit [V] Unit [V] Ref. No. PIN STBY TALK NOTE Ref. No. PIN STBY TALK NOTE Q412 0-0.5 IC405 0-1.2 0-0.5 0-3.0 IC406 Q401 0-2.0 0-0.8 Q402 0-2.0 0-0.8 0-3.0 Q403 0-2.4 Q404 Q405 Q406 Q407 Q408 Q409 Q410 Q411...

  • Page 28: Semiconductor Lead Identification

    SEMICONDUCTOR LEAD INDENTIFICATION Base Unit D751 / D755 : SML-310VT D1 / D2 / D4 / D5 / D7 / D10 : 1N4148 D752 / D753 / D754 : SML-310MT D3 : HZ33-2 D8 : HZ7A1 D9 : HZ9A3 Cathode Anode Anode Cathode...
  • Page 29 Handset D407 : HSM88WA D408 : SML-310LT D401 / D402 / D405 / D406 : RLS4148 D403 / D404 : HZK6C Anode Cathode Anode Anode Cathode Cathode Cathode Q401 : 2SC2714 Q402 / Q404 / Q405 / Q406 / Q407 / Q408 / Q409 / Q410 / Q411 / Q412 : 2SC1623 Q403 : 2SA812(M) B : Base...

  • Page 30: Electrical Parts Location

    ELECTRICAL PARTS LOCATION Base Unit Main PCB...
  • Page 31 Base Unit Key PCB...
  • Page 32 Handset Main PCB...

  • Page 33: Wiring Diagram

    WIRING DIAGRAMS Base Unit...
  • Page 34 Handset...

  • Page 35: Exploded View And Mechanical Parts List

    EXPLODED VIEWS AND MECHANICAL PARTS LIST Base Unit SPEAKER KEY PCB MAIN PCB RF MODULE (BASE) ANTENNA...
  • Page 36 Base Unit LOC. REF. PART NO. DESCRIPTION RC008819 GNBZ358191Z BUTTON, FUNCTION RC008412 GCAS142458Z CASE, BOTTOM RC008413 GCAS242518B CASE, TOP RC008414 HTML442750Z CHARGE TERMINAL C5191(PBP) RC005608 RCUN451804Z CUSHION NEOPRENE RC002384 LFUT428079Z FOOT BUMPON SJ-5916 1.6 RC005689 LHDZ453179Z HOLDER, MIC RC005444 HHDS431080B HOLDER, SPEAKER SUS304 CSP 0.8T 3/4H RC005684...
  • Page 37 Handset RF MODULE (HANDSET) MAIN PCB ASSY...
  • Page 38 Handset LOC. REF. PART NO. DESCRIPTION RC008346 RBLD442400Z BLIND RC008340 GNBZ342334Z BUTTON, FUNCTION RC008420 GCAS342787Z CASE, FRONT RC008338 GCAS242332Z CASE, REAR RC008342 HTML442336Z CHARGE TERMINAL C2680(BSP) RC008703 GCAS457897Z COVER ELASTOMER RC008702 GCAS357889Z COVER, BATTER RC008347 RCUM441150Z CUSHION MOLTPRENE, 40×20×8 RC008348 RCUN442433Z CUSHION NEOPRENE...

  • Page 39: 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 40 LOC. REF. PART NO. DESCRIPTION RC008392 BCML811835Z CERAMIC M/L (1608) TAPE 0.018UF 50V K B RC004171 BCXT515635Z CERAMIC M/L (2125) TAPE 0.056UF 25V K B RC008757 BCMM818204Z CERAMIC M/L (1608) TAPE 82PF 50V J CH RC004138 BCAZ811006Z ELECTROLYTIC 10UF 50V M C-156 RC008843 BCML313335Z CERAMIC M/L (1608) TAPE...
  • Page 41 LOC. REF. PART NO. DESCRIPTION C104 RC008060 BCML811225Z CERAMIC M/L (1608) TAPE 0.0012UF 50V K B C105 RC005214 BCMM812214Z CERAMIC M/L (1608) TAPE 220PF 50V J CH C106 RC005208 BCML814725Z CERAMIC M/L (1608) TAPE 0.0047UF 50V K B C107 RC002234 BCXT814735Z CERAMIC M/L (2125) TAPE 0.047UF 50V K B...
  • Page 42 LOC. REF. PART NO. DESCRIPTION C445 RC004347 BCXK514740Z CERAMIC M/L (2125) TAPE 0.47UF 25V Z F C446 RC005205 BCML811035Z CERAMIC M/L (1608) TAPE 0.01UF 50V K B C447 RC004412 BCXT312245Z CERAMIC M/L (2125) TAPE 0.22UF 16V K B C448 RC005275 BCML813925Z CERAMIC M/L (1608) TAPE 0.0039UF 50V K B...
  • Page 43 LOC. REF. PART NO. DESCRIPTION FT402 RC008280 BFLY0977001 FL-977 LTFS455B5 IC’s RC001086 BDEY0582001 M5223L RC004870 BDEY2768003 MC3361CDR2 RC008278 BDEY3870003 LA8633VU-TLM RC001640 BDEY1146001 PC817CD RC001086 BDEY0582001 M5223L RC001087 BDEY0944001 MC34018P RC008322 BDEY3882003 TK11130SCL RC005075 BDEY2938003 RH5VL40CA-T1 IC10 RC008395 BDDY0882001 UC2341 MB89174APF-G-251-BND-U IC401 RC004870 BDEY2768003...
  • Page 44 LOC. REF. PART NO. DESCRIPTION Q410 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B Q411 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B Q412 RC003031 BDBC1623648 DB-380 2SC1623-L6 T1B RESISTORS RC005249 BRFC162244Z CARBON FIXED CHIP 220K 1/16W J TAPING RC005252 BRFC163314Z CARBON FIXED CHIP 330 1/16W J TAPING RC005255 BRFC164714Z CARBON FIXED CHIP...
  • Page 45 LOC. REF. PART NO. DESCRIPTION RC005311 BRFC160004Z CARBON FIXED CHIP 0 1/16W J TAPING RC005241 BRFC161034Z CARBON FIXED CHIP 10K 1/16W J TAPING RC005245 BRFC161834Z CARBON FIXED CHIP 18K 1/16W J TAPING RC008029 BRFC163924Z CARBON FIXED CHIP 3.9K 1/16W J TAPING RC005241 BRFC161034Z CARBON FIXED CHIP...
  • Page 46 LOC. REF. PART NO. DESCRIPTION R117 RC005255 BRFC164714Z CARBON FIXED CHIP 470 1/16W J TAPING R118 RC005255 BRFC164714Z CARBON FIXED CHIP 470 1/16W J TAPING R119 RC005434 BRFC163914Z CARBON FIXED CHIP 390 1/16W J TAPING R120 RC005255 BRFC164714Z CARBON FIXED CHIP 470 1/16W J TAPING R121 RC005240...
  • Page 47 LOC. REF. PART NO. DESCRIPTION R435 RC005245 BRFC161834Z CARBON FIXED CHIP 18K 1/16W J TAPING R436 RC005280 BRFC161534Z CARBON FIXED CHIP 15K 1/16W J TAPING R437 RC005254 BRFC164704Z CARBON FIXED CHIP 47 1/16W J TAPING R438 RC005281 BRFC162224Z CARBON FIXED CHIP 2.2K 1/16W J TAPING R439 RC005280...
  • Page 48 LOC. REF. PART NO. DESCRIPTION SWITCHES RC003604 BSWY0755001 SW-755 SBHA12B-06 RC003604 BSWY0755001 SW-755 SBHA12B-06 CRYSTALS RC008285 BQXY0721001 QX-721 10.100000MHZ RC003629 BQXY0542001 QX-542 3.579545MHZ X401 RC008285 BQXY0721001 QX-721 10.100000MHZ X402 RC008325 BQXY0709001 QX-709 3.579545MHZ OTHER ELECTRICAL PART AD901 RC003328 BADY0318001 AC ADAPTOR AD-318 H-A1-2178A AT701 RC008310 BATY0369001...

  • Page 49: Assembly Parts List

    ASSEMBLY PARTS LIST LOC. REF. PART NO. DESCRIPTION RC008428 AC220BLBA MAIN PCB ASSEMBLY, BASE RC008429 AC220BLBC KEY PCB ASSEMBLY, BASE RC008430 AC220BLPA MAIN PCB ASSEMBLY, HANDSE...

  • Page 50: 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 51 BASE UNIT RECEIVER UNIT NOMINAL LIMIT 1. Sensitivity 12 dB SINAD with CCITT Filter -115 < -107 2. Frequency Response (Ref:1kHz) 0.3kHz -3.0 -7.0~+1.0 3.0kHz -2.5 -6.5~+1.5 3. Distortion at 1 mV RF Input < 5 4. S/N ratio at 1 mV RF Input with CCITT Filter 65 <...
  • Page 52 PORTABLE UNIT RECEIVER UNIT NOMINAL LIMIT 1. Sensitivity 12 dB SINAD with CCITT Filter -115 < -107 2. Frequency Response (Ref:1kHz) 0.3kHz -2.0 -6.0~+2.0 3.0kHz -4.0 -8.0~+0.0 3. Audio Output Level VOL. HAC 162~324 VOL. HIGH 91~192 VOL. LOW 36~72 4.

Table of Contents