Toshiba FT 8000, Service Manual

Page 1: ...CORDLESS TELEPHONE PUBLISHED IN JAPAN Aug 2000 SERVICE MANUAL FILE NO 2B0 200006 FT 8000 ...

Page 2: ... circuitry etc may alter the safety characteristics of these models and potentially create a hazardous situation for the user Any design alterations or additions will void the manufacturer s warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom 2 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have...

Page 3: ...USE CHARGE LED PAGE Button Charging Contact VOL RING Button CH channel Button Antenna FLASH Button RDL P Redial Pause Button Dialpad Rechargeable Battery Pack back TALK BATT LOW LED Hook TALK TALK ABC IN USE PAGE CHARGE 2 JKL 5 TUV8 OPER TONE MEM MUTE CH VOL RING RLD P FLASH 0 DEF3 MNO6 WX YZ PQ RS 9 GHI4 7 1 BATT LOW CORDLESS TELEPHONE COMP ANDOR NOISE REDUCTION 900MHz FT 8000 COMP ANDOR NOISE RE...

Page 4: ...t point on the Base MAIN PCB Adjust RT301 for a 6 5dBm reading on the Power Meter Connect the Frequency Counter to the RF test point on the Base MAIN PCB Adjust CT1 to make sure that the frequency is 926 897468 MHz Press the PAGE key to enter the TEST Mode 2 Connect the AF Generator to the TEL Line Jack on the Base Main PCB Make sure that the output is 1 kHz 138 mV from the AF Generator Connect th...

Page 5: ...gnal Generator to the RF test point on the Base MAIN PCB Make sure that the frequency is 902 952467 MHz Connect the DC Voltmeter to the AF Terminal of RT1 Adjust L3 to indicate DC 1 00 V Connect the AC Voltmeter across a 600 ohm dummy to the Telephone Line Jack Adjust RT2 for a 195 mV reading on the AC voltmeter Press the PAGE key to enter the TEST Mode 5 Make sure that the frequency of RF SG outp...

Page 6: ... Connect the RF power Meter to the RF test point on the handset MAIN PCB Adjust RT501 for a 7 0dBm reading on the Power Meter Connect the Frequency Counter to the RF test point on the handset MAIN PCB Adjust CT601 to make sure that the frequency is 903 052467 MHz Press the 2 key to enter the TEST Mode 2 Connect the AF Generator to the MIC Connector Make sure that the output is 1kHz 9mV from the AF...

Page 7: ... MAIN PCB Make sure that the frequency is 926 997467 MHz Connect the DC Voltmeter to the AF Terminal of RT601 Adjust L602 to indicate DC 0 85 V Connect the RF Signal Generator to the RF test point on the handset MAIN PCB Make sure that the frequency is 926 997467 MHz Connect the AC Voltmeter across a 150 ohm dummy to the SP Connector Adjust RT602 for a 247 mV reading on the AC Voltmeter Press the ...

Page 8: ...7 BLOCK DIAGRAMS Base Unit MC3361 FL 977 MB89176 QX 721 FL 971 2SC2714 2SC1623 IC1 LA8634V 2SC2712 2SC1623 2SC1623 2SC1623 2SC1623 2SD471 2SD471 2SD471 XC61CC2802PR TF 265 RL 0042 PS2501 B301 ...

Page 9: ...8 Handset 2SC2714 MC3361 FL 971 QX 721 FL 977 2SC1623 IC603 LA8634V 2SC1623 2SC1623 2SC1623 2SC1623 2SC1623 2SC1623 MB89177 2SC1623 2SA812 QX 709 XC612N3328MR TK11130 B501 ...

Page 10: ...9 10 SCHEMATIC DIAGRAMS Base Unit ...

Page 11: ...11 12 Handset ...

Page 12: ... the handset ring When the TEL SG is joined with the base to make bell signal is there pulse wave at pin 4 of IC4 Is there pulse wave at pin 21 of IC5 Check IC5 and its peripheral circuit Check IC4 and TEL network circuit Check R58 C45 and R59 See 2 The bell does not ring page does not ring OK OK NG NG OK NG ...

Page 13: ...of the base is pressed does pin20 of IC5 change from high to low Check IC5 and its peripheral circuit When the key of the handset is pressed can the pulse output at pin 38 of IC604 be seen Check RINGER SP601 Check R55 R77 and S1 See 3 The base and handset cannot be connected Check IC604 OK OK OK NG OK NG NG NG At the Q608 collector can the pulse wave be seen OK Check R654 R657 and D602 NG ...

Page 14: ...test mode 8 902 952467 MHz 250 Hz 8 kHz Dev 1mV output signal from RF jack is applied Can the status LED be lighted OK NG Check whether there is a 250 Hz data waveform at pin 9 of IC3 Check IC3 Q1 and their peripheral circuit NG OK Check whether there is a 250 Hz data waveform at the Q2 collector Check RT2 Q2 and their peripheral circuit NG OK Check whether there is a 250 Hz data waveform at pin 3...

Page 15: ...ignal from RF jack is applied Check whether the bell ring NG Check whether the 250 Hz data waveform from pin 9 of IC601 is fed Check IC601 Q601 and their peripheral circuit NG OK OK Check whether there is a 250 Hz data waveform at the Q602 collector Check RT602 Q602 and their peripheral circuit NG OK Check whether there is a 250 Hz data waveform at pin 40 of IC604 Check R628 R629 IC603 and their p...

Page 16: ...k Q10 RL1 and their peripheral circuits NG OK OK 5 Cannot make a phone call tone Can the base and handset be connected See 3 The base and handset be cannot be connected OK NG While in TALK MODE press dial key of the handset Can tone waveform from Pin 1 of IC5 is fed Check IC5 OK NG Can tone signal be heard from the handset speaker Check IC1 Q3 and their peripheral circuits NG OK Check the base TEL...

Page 17: ...nal from the handset is detected by the liner detector can the 1 kHz sine waveform be fed Check RT603 or handset RF unit NG OK Check whether there is the 1 kHz sine waveform at pin 9 of IC3 on the base unit Check IC3 Q1 and their peripheral circuit NG OK Check whether there is the 1 kHz sine waveform at pin 3 of IC1 Check RT2 Q2 and their peripheral circuits NG OK Check whether there is the 1 kHz ...

Page 18: ... signal from the base is detected by the liner detector can the 1 kHz sine waveform be fed Check base RF unit NG OK Check whether there is the 1 kHz sine waveform at pin 9 of IC601 on the handset unit Check IC601 Q601 and their peripheral circuit NG OK Check whether there is the 1 kHz sine waveform at pin 3 of IC603 Check RT602 Q602 and their peripheral circuits NG OK Check whether there is the 1 ...

Page 19: ...ave 455kHz 6 3 0 2 9 7 3 0 0 IC3 8 3 4 0 9 1 0 1 0 NOISE NOISE 10 0 6 0 6 11 0 6 0 7 NOISE 12 0 5 0 8 13 3 3 0 14 0 0 15 0 0 GND GND 16 3 4 SineWave 10 5MHz 1 0 0 IC4 2 0 0 3 0 0 GND GND 4 3 4 3 3 1 0 0 2 3 4 3 3 3 0 0 GND GND 4 0 0 GND GND 5 SineWave SineWave 3 58MHz 3 58MHz 6 SineWave SineWave 3 58MHz 3 58MHZ 7 3 4 3 3 Vcc Vcc 8 0 0 GND GND 9 0 0 10 0 0 11 0 0 12 0 0 13 0 3 0 14 0 0 15 0 0 16 0 ...

Page 20: ... 0 0 9 NOISE Q2 E 0 3 0 3 NOISE C 1 9 1 9 NOISE B 1 3 1 3 Q3 E 0 6 6 0 C 4 4 4 4 B 1 8 1 8 Q4 E 1 2 1 2 C 2 2 2 2 B 0 1 0 1 Q6 E 0 0 GND GND C 3 4 3 3 B 5 8 5 8 Q7 E 5 2 5 2 C 9 0 9 0 B 0 8 0 8 w o CHG Q8 E 0 1 0 1 C 0 1 0 1 B 0 0 Q9 E 0 0 GND GND C 3 4 3 B 0 0 8 Q10 E 0 0 GND GND C 9 0 0 B 4 1 4 0 Q11 E 3 4 3 3 C 5 2 5 2 B 2 9 2 6 Q12 E 3 4 3 3 C 0 3 3 ...

Page 21: ...D GND IC603 12 0 0 6 1 6 PULSE 13 0 3 0 3 0 PULSE Vcc 14 0 1 6 15 0 1 6 16 0 3 5 17 0 3 5 18 0 1 6 19 0 1 6 20 0 1 6 21 0 0 6 22 0 3 1 6 23 0 3 1 6 24 0 1 6 1 0 0 IC604 2 3 6 3 5 3 0 0 GND GND 4 0 0 GND GND 5 0 SineWave SineWave 3 58MHz 6 3 6 SineWave SineWave 3 58MHz 3 58MHz 7 3 6 3 5 Vcc 8 0 0 GND 9 0 0 10 0 0 11 0 3 5 12 0 3 5 13 0 3 6 3 5 PULSE 14 0 3 5 Vol MEDIUM 15 0 0 Vol MEDIUM 16 3 6 0 3 ...

Page 22: ...7 PULSE Q601 E 0 0 GND GND C 0 2 2 2 2 PULSE B 0 1 0 1 PULSE Q602 E 0 0 6 0 4 PULSE C 0 2 0 1 8 PULSE B 0 2 5 2 2 PULSE Q603 E 0 3 0 3 PULSE C 0 2 3 B 0 2 1 4 Q604 E 0 0 9 C 0 2 2 B 0 1 4 Q605 E 0 0 7 C 3 8 2 B 0 1 4 Q606 E 0 0 7 C 3 8 1 8 B 0 0 Vol MEDIUM Q607 E 0 0 GND Vol MEDIUM C 0 0 Vol MEDIUM B 0 0 Q608 E 0 0 C 3 8 3 8 B 0 0 Q609 E 0 0 C 0 0 B 0 0 w o CHG Q610 E 0 0 C 3 8 3 8 B 0 0 Q611 E 0 ...

Page 23: ...33 P02 L12 32 P03 L13 31 P04 L14 30 P05 L15 29 P06 L16 28 P07 L17 CR 27 P10 26 P11 25 1 DTMF 2 RST 3 MDD0 4 MDD1 5 X0 6 X1 7 Vcc 8 XOUT 9 FCOUT 10 P27 REF 11 P26 12 P25 IC5 MB89176PF IC1 LA8634VU IC3 MC3361CDR2 PRE IN 24 PRE NF 23 CMP NF 22 CMP VREC 21 CMP OUT 20 LPF2 IN 19 LPF2 OUT 18 CMP MUTE CONT 17 EXP MUTE CONT 16 TX DATA IN 15 VREF 14 VCC 13 1 LPF1 IN 2 LPF1 OUT 3 EXP IN 4 EXT VREC 5 INT OUT...

Page 24: ...5 INT OUT 6 TEL OUT 7 V HOLD 8 INTC CONT 9 CHARGE CONT 10 FSK OUT 11 GND 12 ST BY Mixer Input 16 Ground 15 Audio Mute 14 Scan Control 13 Squelch Input 12 Filter Output 11 Filter Input 10 Demodulator Output 9 1 Crystal Osc 2 3 Mixer Output 4 Vcc 5 Limiter Input 6 Decoupling 7 8 Ouad Coil P40 48 P41 47 P42 46 P43 MSK0 45 P44 MSK1 44 Vss 43 P30 SCK 42 P31 S0 41 P32 S1 40 P33 EC 39 P34 TO INT0 38 P35 ...

Page 25: ...26 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...

Page 26: ...27 Handset Main PCB ...

Page 27: ...28 WIRING DIAGRAMS Base Unit ...

Page 28: ...29 Handset ...

Page 29: ...30 EXPLODED VIEWS AND MECHANICAL PARTS LIST Base Unit MAIN PCB ASSY RF MODULE BASE ANTENNA 8 6 3 10 9 1 11 11 14 4 11 12 7 5 12 13 2 ...

Page 30: ...9Z CHARGE TERMINAL C5191 PBP 2 5 RC009327 LFUT441122Z FOOT 2 6 RC009450 GCAS447683Z HOOK for FT 8000 ABS 1 RC009481 GCAS448555Z HOOK for FT 8000G ABS RC009466 GCAS448595Z HOOK for FT 8000W ABS RC009466 GCAS448595Z HOOK for FT 8000T ABS 7 RC009457 PLBB448133A LABEL BARCODE for FT 8000 1 RC009473 PLBB462137A LABEL BARCODE for FT 8000G RC009488 PLBB462136A LABEL BARCODE for FT 8000W RC009500 PLBB4649...

Page 31: ...32 Handset MAIN PCB ASSY RF MODULE HANDSET 7 9 17 18 4 1 16 16 12 15 13 2 3 8 10 6 11 5 16 16 14 ...

Page 32: ...RC009469 GCAS448601Z COVER for FT 8000W ELASTOMER RC009469 GCAS448601Z COVER for FT 8000T ELASTOMER 7 RC009451 GCAS447687A COVER BATTERY for FT 8000 ABS 1 RC009482 GCAS448559Z COVER BATTERY for FT 8000G ABS RC009467 GCAS448599A COVER BATTERY for FT 8000W ABS RC009497 GCAS464127Z COVER BATTERY for FT 8000T ABS 8 RC008348 RCUN442433Z CUSHION except for FT 8000T NEOPRENE 1 9 RC009337 RCUN447997Z CUSH...

Page 33: ...08 0 1UF 16V K B C10 RC001797 BCAZ114706Z ELECTROLYTIC 47UF 10V M C 156 C11 RC008843 BCML313335Z CERAMIC M L 1608 0 033UF 16V K B C12 RC008268 BCML314735Z CERAMIC M L 1608 0 047UF 16V K B C13 RC004138 BCAZ811006Z ELECTROLYTIC 10UF 50V M C 156 C14 RC005208 BCML814725Z CERAMIC M L 1608 0 0047UF 50V K B C15 RC001800 BCAZ311016Z ELECTROLYTIC 100UF 16V M C 156 C16 RC005210 BCMM811014Z CERAMIC M L 1608 ...

Page 34: ...AZ903316Z ELECTROLYTIC 330UF 6 3V M C 156 C56 RC004445 BCAZ903316Z ELECTROLYTIC 330UF 6 3V M C 156 C57 RC005215 BCMM812704Z CERAMIC M L 1608 27PF 50V J CH or RC005219 BCMM814704Z CERAMIC M L 1608 47PF 50V J CH C58 RC005215 BCMM812704Z CERAMIC M L 1608 27PF 50V J CH or RC005219 BCMM814704Z CERAMIC M L 1608 47PF 50V J CH C59 RC001800 BCAZ311016Z ELECTROLYTIC 100UF 16V M C 156 C60 RC008731 BCXK311050...

Page 35: ...M L 1608 3PF 50V C CJ C626 RC005205 BCML811035Z CERAMIC M L 1608 0 01UF 50V K B C627 RC005211 BCMM811204Z CERAMIC M L 1608 12PF 50V J CH C628 RC005210 BCMM811014Z CERAMIC M L 1608 100PF 50V J CH C630 RC005210 BCMM811014Z CERAMIC M L 1608 100PF 50V J CH C631 RC008268 BCML314735Z CERAMIC M L 1608 0 047UF 16V K B C632 RC008296 BCSH901006Z TANTALUM CHIP 10UF 6 3V M C 122 C633 RC008268 BCML314735Z CERA...

Page 36: ... 25V K B C671 RC005205 BCML811035Z CERAMIC M L 1608 0 01UF 50V K B C672 RC005205 BCML811035Z CERAMIC M L 1608 0 01UF 50V K B C673 RC005202 BCML311045Z CERAMIC M L 1608 0 1UF 16V K B C674 RC008296 BCSH901006Z TANTALUM CHIP 10UF 6 3V M C 122 C676 RC009271 BCDB901016Z ELECTROLYTIC 100UF 6 3V M C 326 C699 RC005360 BCMM816092Z CERAMIC M L 1608 6PF 50V D CH CT1 RC008272 BCTY0076100 TRIMMER CT 076 TZ3Z10...

Page 37: ...2BE A0026HM L603 RC008398 BLZY0181186 INDUCTOR MOLDED CHIP LZ 181 1 8NH T1 RC003234 BTFY0265001 TRANSFORMER HYBRID TF 265 AT 24E7 1B 295403 TRANSISTORS Q1 RC002245 BDBC2714124 DB 718 2SC2714 Y TE85L Q2 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q3 RC001637 BDBC2712303 DB 381 2SC2712 GR TE85L Q4 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q6 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q7 RC003200 BDB...

Page 38: ...0 1 16W J R20 RC005261 BRFC168224Z CARBON FIXED CHIP 8 2K 1 16W J R21 RC005280 BRFC161534Z CARBON FIXED CHIP 15K 1 16W J R22 RC005260 BRFC166834Z CARBON FIXED CHIP 68K 1 16W J R23 RC005259 BRFC166814Z CARBON FIXED CHIP 680 1 16W J R24 RC002349 BRSJ221034Z METAL OXIDE 10K 1 2WS J R25 RC009305 BRZY0085001 METAL OXIDE FORMED RZ 085 150 1WS J P 12 5 R26 RC005249 BRFC162244Z CARBON FIXED CHIP 220K 1 16...

Page 39: ... BRPA612204Z CARBON 22 1 6W J R73 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R74 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R75 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R76 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R77 RC005257 BRFC164734Z CARBON FIXED CHIP 47K 1 16W J R78 RC005257 BRFC164734Z CARBON FIXED CHIP 47K 1 16W J R79 RC005242 BRFC161044Z CARBON FIXED CH...

Page 40: ...160004Z CARBON FIXED CHIP 0 1 16W J R628 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R629 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R630 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R631 RC008029 BRFC163924Z CARBON FIXED CHIP 3 9K 1 16W J R632 RC005256 BRFC164724Z CARBON FIXED CHIP 4 7K 1 16W J R633 RC008735 BRFC166824Z CARBON FIXED CHIP 6 8K 1 16W J R634 RC005288 BRFC168244Z ...

Page 41: ...24Z CARBON FIXED CHIP 1K 1 16W J R674 RC005286 BRFC165644Z CARBON FIXED CHIP 560K 1 16W J R675 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R676 RC005432 BRFC161544Z CARBON FIXED CHIP 150K 1 16W J R677 RC005256 BRFC164724Z CARBON FIXED CHIP 4 7K 1 16W J R678 RC005311 BRFC160004Z CARBON FIXED CHIP 0 1 16W J R680 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R681 RC005280 BRFC161534Z CA...

Page 42: ... W 004 UL 1571 26 3 70 3 RED W802 RC001317 CUPK007011Z WIRE W 004 UL 1571 26 3 70 3 BLK WZ901 RC008231 BWZY1401001 CORD TEL WZ 1401 UNL 020 2GY 214 PACKING PARTS RC009245 GBCT447691Z WALL MOUNT for FT 8000 ABS RC009247 GBCT448564Z WALL MOUNT for FT 8000G ABS RC009246 GBCT448604Z WALL MOUNT for FT 8000W ABS RC009492 GBCT464187Z WALL MOUNT for FT 8000T ABS RC004688 PLBB454286Z LABEL BARCODE PAPER RC...

Page 43: ...y for repair or contact the Toshiba Factory Service Center RC009430 AC267BHBA BASE MAIN PCB ASSEMBLY RC009432 AC267BHPA HANDSET MAIN PCB ASSEMBLY LOC PART NO REF DESCRIPTION NO NO RC004291 WETC420086Z COVER ANT EPE RC009341 WSLV344952Z SLEEVE RC009342 WSLV344953Z SLEEVE RC009343 WSLV428000Z PACKING BAG PORT MIRA MAT RC009344 WSLV444958Z SLEEVE ...

Page 44: ...z 19 902 952467MHz 926 897468MHz 20 903 002467MHz 926 947468MHz 21 903 052467MHz 926 997467MHz 22 903 102467MHz 927 047467MHz 23 903 152467MHz 927 097467MHz 24 903 202468MHz 927 147467MHz 25 903 252468MHz 927 197467MHz 26 903 302468MHz 927 247467MHz 27 903 352468MHz 927 297467MHz 28 903 402468MHz 927 347466MHz 29 903 452468MHz 927 397466MHz 30 903 502468MHz 927 447466MHz 31 903 552468MHz 927 49746...

Page 45: ...On hook Impedance 20Hz 75Vrms 4 Minimum Ringer Input Level 5 Pulse Dialing a Dialing Rate 10pps b Make Ratio 10pps 6 DTMF Output 600Ω Load a Minimum Level of Single Tone Low Group High Group b DTMF Level c DTMF Frequency Row 1 Row 2 Row 3 Row 4 Column 1 Column 2 Column 3 d Signal Length e Interdigital Pause UNIT dBm dB dB dB kHz kHz dB dB dBm UNIT dBm dBm dB dB kHz kHz dB dB dB UNIT OHM OHM kOHM V...

Page 46: ...N 1 Base Unit a Stand by Charge Off b Stand by Charge On c Talk 2 Charge Current at BATTERY 3 Portable Unit a Stand by b Talk 4 Battery Low Detect Voltage UNIT dBm dB dB mV mV mV dB kHz kHz dB dB dBSPL dBSPL dBSPL dBSPL UNIT dBm mV dB dB kHz kHz dB dB dB UNIT mA mA mA mA mA mA V NOMINAL 115 5 5 17 0 493 247 98 3 1 5 70 15 15 30 45 87 74 79 67 NOMINAL 7 0 9 0 0 0 0 5 0 8 0 1 5 55 55 40 NOMINAL 65 1...

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