Toshiba FT-8901 Скачать руководство пользователя страница 16 | Manualshive

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— 17 —

A

Check handset RF unit.

Set the handset in the
test mode 3, check
whether deviation of the
TX data is app. 9.0 kHz
Dev.

NG

Check whether there is a
250 Hz data waveform at
“MOD” of RF unit.

Check RT603, R641,
R642, R643, R644,
R645 and C653.

NG

OK

Check handset RF unit.

NG

Set the handset in the
test mode 6, 926.997467
MHz (250 Hz ±8 kHz
Dev.) 1mV output signal
from RF test point 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
peripheral circuit.

NG

OK

Check IC604 and its
peripheral circuit.

OK

Place the handset on the
base to charge about 5
seconds, then connect
again.

OK

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Содержание FT-8901

Страница 1: ...SERVICE MANUAL PUBLISHED IN JAPAN Apr 2001 FILE NO 2B0 200102 FT 8901 CORDLESS TELEPHONE ...

Страница 2: ...e or passive 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 ...

Страница 3: ...U SET MIC TIME VOLUME CHARGE LED IN USE LED POWER LED PAGE Button REC MEMO 2WAY Button ANSWER Button SKIP FF SELECT Button PLAY STOP Button TIME Button DELETE Button VOLUME Button VOLUME Button Charging Contact GREETING Button ANSWER S K I P PLAY S T O P D E LETE ALL DIGIT AL ANSWERING SYSTEM CORDLESS TELEPHONE MENU Button SET Button REC MEMO 2WAY SELECT SELECT REW REPEAT SELECT Button COMPANDOR N...

Страница 4: ...T or SELECT When AM or PM is announced press SET RECORDING AND SETTING THE GREETING MESSAGE To record the greeting message 1 Press MENU once then press REC MEMO 2WAY 2 Start to record your message after the guidance 3 Press REC MEMO 2WAY or PLAY STOP to finish recording To change the greeting message 1 Press GREETING 2 Press SELECT or SELECT to change to other 3 Press PLAY STOP to exit the system ...

Страница 5: ...Jack AC Adapter Alignment Procedure step 1 2 3 Adjustment RT301 TX Power CT1 TX Frequency RT3 TX Modulation Remarks Connect the Power Meter to the RF test point on the Base MAIN PCB Adjust RT301 for a 6 0dBm 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 SKIP FF key to enter t...

Страница 6: ...nect the RF Signal 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 test point Adjust L4 to indicate DC 1 00 V Connect the AC Voltmeter across a 600 ohm dummy to the Telephone Line Jack Adjust RT2 for a 12dBm reading on the AC voltmeter Adjustment L4 Discriminator Voltage RT2 RX AF Voltage RT1 SQ Point Press thePr...

Страница 7: ...F 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 Generator Connect the Deviation Meter to the RF test point on the handset MAIN PCB Adjust RT603 to indicate 8 kHz Dev Preset a Connect the handset RF unit to the h...

Страница 8: ...Hz deviation SG 6 0 dBµV 1kHz 8kHz Deviation Remarks Press the 4 key to enter the TEST Mode 4 Connect the RF Singal Generator to the RF test point on the handset MAIN PCB Make sure that the frequency is 926 997467 MHz Connect the DC Voltmeter to the AF test point 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 freque...

Страница 9: ...BLOCK DIAGRAMS Base Unit 8 ...

Страница 10: ... 9 Handset ...

Страница 11: ...SCHEMATIC DIAGRAMS Base Unit 10 11 FT8901 Sche p65 01 05 01 12 12 Page 8 Adobe PageMaker 6 5J Win ...

Страница 12: ...Handset 12 13 FT8901 Sche p65 01 05 01 12 12 Page 9 Adobe PageMaker 6 5J Win ...

Страница 13: ...olume setting to Hi or Low OK NG If you want to reset the unit to the factroy settings You can cancel the OGM PIN and the clock settings by the following process 1 Disconnect the AC adaptor and telephone line cord from the base Keep the AC adaptor connected to the wall outlet Make sure that the telephone line cord remains disconnected during this procedure 2 A beep sounds and P blinks in the LED d...

Страница 14: ...he base is pressed does pin67 of IC4 change from high to low Check IC4 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 Y601 Check DSP unit 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 R656 R657 Q609 Q608 and D602 NG ...

Страница 15: ...it 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 64 of IC4 NG OK Check IC4 and its peripheral circuit Check whether the handset is able to set in the test mode 1 OK NG Check IC604 and its peripheral circuit Check the TX POWER and theTX FREQUENCY on the handset unit OK NG C...

Страница 16: ...nal from RF test point 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 the...

Страница 17: ...0 of IC4 is fed Check IC4 Check Q21 RL1 and their peripheral circuits NG OK OK NG 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 36 of IC4 is fed Check IC4 OK NG Can tone signal be heard from the handset speaker Check Q13 IC1 Q3 and their peripheral circuits NG OK Check the ba...

Страница 18: ...gnal from the handset is detected by the liner detector can the 1 kHz sine waveform be fed Check 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 sine wav...

Страница 19: ...t 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...

Страница 20: ...0 1 0 1 B 0 3 0 3 E 5 2 5 2 Q14 C 8 7 8 5 B 5 9 5 9 E 3 3 3 2 Q15 C 5 2 5 2 B 3 9 3 9 E 5 6 5 6 Q16 C 8 8 8 7 B 6 2 6 2 E 3 6 3 6 Q17 C 5 6 5 6 B 4 3 4 3 E 0 1 0 1 Q18 C 1 5 1 5 B 0 7 0 7 E 0 0 Q19 C 2 32 2 6 3 3 B 3 1 0 6 3 6 0 8 E 5 6 5 6 Q20 C 8 9 8 6 B 6 2 6 2 E 0 0 Q21 C 9 1 0 B 0 0 7 E 0 0 Q22 C 0 6 0 6 B 0 0 E 0 0 Q23 C 0 0 B 0 6 0 6 E 0 0 Q24 C 3 7 3 7 B 0 0 E 0 0 Q25 C 2 5 2 5 B 0 8 0 8 E...

Страница 21: ...2 Vcc 5 2 Vcc 14 2 7 2 7 15 2 7 2 7 16 0 5 3 7 17 0 5 3 7 18 2 7 2 7 19 2 7 2 7 20 2 7 2 7 21 0 5 0 6 22 2 7 2 7 23 2 7 2 7 24 2 7 2 7 1 0 0 0 0 IC2 2 0 0 0 0 3 0 0 GND 0 0 GND 4 3 6 3 6 1 3 9 2 5 X TAL 3 9 2 5 X TAL 2 3 1 2 3 X TAL 3 1 2 3 X TAL 3 2 6 2 9 4 3 3 Vcc 3 3 Vcc 5 2 2 2 4 2 0 6 2 2 2 2 7 2 2 2 2 IC3 8 3 4 3 2 3 4 3 2 9 0 9 0 9 10 0 9 0 9 11 2 1 0 8 1 5 12 0 5 0 8 13 3 2 0 0 14 0 0 0 0 ...

Страница 22: ... X TAL 1 4 0 0 X TAL 55 0 0 DGND 0 0 DGND 56 3 7 RESET 3 7 RESET 57 3 7 PDN 3 7 PDN 58 3 7 3 7 Ref No Pin STBY TALK Note Note 59 0 0 0 0 60 0 0 0 0 61 0 0 0 0 62 0 0 0 0 63 3 7 3 7 64 3 5 0 0 DATA_IN 3 5 0 0 DATA_IN 65 0 0 RX_MUTE 3 7 RX_MUTE 66 0 0 TX_MUTE 3 7 TX_MUTE 67 0 0 0 0 68 3 2 0 0 PLLENB 3 2 PLLENB 69 3 2 0 0 PLLDAT 0 0 PLLDAT 70 3 2 0 0 PLLCLK 0 0 PLLCLK 71 3 3 TX_CONT 0 1 TX_CONT 72 0 ...

Страница 23: ... TALK Note Note 6 5 5 5 5 IC9 7 0 0 8 2 4 2 4 1 0 SineWave 10 1MHz SineWave 10 1MHz 2 0 SineWave 10 1MHz SineWave 10 1MHz 3 0 2 4 PULSE ClippedWave 455kHz 4 0 3 0 PULSE 3 0 Vcc 5 0 2 6 PULSE SineWave 455kHz 6 0 2 6 PULSE 2 6 7 0 2 6 PULSE 2 6 IC601 8 0 3 0 PULSE 3 0 Vol MEDIUM 9 0 0 85 NOISE 10 0 0 7 PULSE 0 6 11 0 0 7 NOISE 0 7 12 0 0 5 PULSE 0 8 13 0 2 9 PULSE 0 14 0 0 15 0 GND 0 GND 16 0 3 0 PU...

Страница 24: ... 3 5 32 3 6 3 5 33 3 6 3 5 34 3 6 3 5 35 3 8 3 8 36 3 8 3 8 37 0 3 5 38 0 0 39 0 0 40 0 3 0 PULSE 0 3 0 NOISE 41 0 3 8 PULSE 3 8 42 0 2 5 PULSE 0 2 43 0 GND 0 GND 44 0 0 8 PULSE 0 8 45 0 0 46 0 3 0 PULSE 3 0 47 0 3 0 PULSE 3 0 48 0 3 0 PULSE 3 0 1 0 3 5 PULSE 3 5 2 0 GND 0 GND IC605 3 0 1 3 PULSE 1 3 4 0 3 PULSE 3 5 3 8 BATT 3 8V 3 8 BATT 3 8V 1 3 8 BATT 3 8V 3 8 BATT 3 8V 2 3 8 BATT 3 8V 3 8 BATT...

Страница 25: ...Y 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 Quad Coil RLS4148 HZK6C Anode Cathode Anode Cathode SML 310LT SML 310MT D2 ELD406 Cathode C1 Cathode E1 Cathode D1 Anode 1 Anode 2 Cathode D2 Cathode E2 Cathode C2 16 15 14 13 12 11 10 9 Cathode G1 Cath...

Страница 26: ...O14 EGPIO15 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 GNDPA SPOUTP SPOUTN VCCPA HSOUT LOUT VCCA LIN LGS DCIN CIDIN CIDIP CIDO HMGS HMIN GNDA MIN MGS VREF GNDPLL 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 CA4 CA3 CA2 CA1 CA0 DWRN DRDN VCC GND CD0 CD1 CD2 CD3 CD4 CD5 CD6 CD7 CD8 CD9 CD10 IC7 TK11237 CONT GND NOISE BYPASS 1 2 3 6 5 4 VIN GND VOUT IC6 Vss CE RE R B ...

Страница 27: ... 28 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...

Страница 28: ... 29 Handset Main PCB ...

Страница 29: ... 30 WIRING DIAGRAMS Base Unit ...

Страница 30: ... 31 Handset ...

Страница 31: ... 6 1 12 22 22 16 3 4 15 22 22 13 17 2 10 BASE KEY PCB ASSY RF MODULE BASE AT751 SP751 SP801 22 24 25 22 21 11 14 23 9 23 9 18 19 23 5 BASE MAIN PCB ASSY HANDSET MAIN PCB ASSY RF MODULE HANDSET 67 64 59 57 54 22 51 22 22 22 55 66 61 62 52 58 53 56 65 60 63 ...

Страница 32: ...08289 SSCW192005N SCREW BIND HD M2 5 NI 22 RC000941 SSCW802608N SCREW P TIGHT BIND HD D2 6 8 NI 23 RC004091 SSCW802614N SCREW P TIGHT BIND HD D2 6 14 NI 24 RC001752 SSCW283012N SCREW TAPPING BIND SP WASHER D3 12 NI 25 RC009412 SSCW970030N WASHER FLAT D3 NI 26 RC009338 RUTC442550Z WOOL COATED PAPER WOOL TACK 27 50 Not Used 51 RC008346 RBLD442400Z BLIND PC 52 RC009454 GNBZ447689Z BUTTON FUNCTION COM...

Страница 33: ...C005216 BCMM813304Z CERAMIC M L 33PF 50V J CH C13 RC008472 BCEQ814786Z ELECTROLYTIC 0 47UF 50V M C 125 C14 RC009195 BCEQ814796Z ELECTROLYTIC 4 7UF 50V M C 125 C15 RC008843 BCML313335Z CERAMIC M L 0 033UF 16V K B C16 RC009195 BCEQ814796Z ELECTROLYTIC 4 7UF 50V M C 125 C17 RC001045 BCEQ311006Z ELECTROLYTIC 10UF 16V M C 125 C18 RC005204 BCML811025Z CERAMIC M L 0 001UF 50V K B C19 RC005203 BCML512235Z...

Страница 34: ... CERAMIC M L 0 01UF 50V K B C77 RC005203 BCML512235Z CERAMIC M L 0 022UF 25V K B C78 RC005202 BCML311045Z CERAMIC M L 0 1UF 16V K B C79 RC005274 BCML811535Z CERAMIC M L 0 015UF 50V K B C81 RC005274 BCML811535Z CERAMIC M L 0 015UF 50V K B C82 RC005401 BCXT111055Z CERAMIC M L 2125 1UF 10V K B C83 RC008731 BCXK311050Z CERAMIC M L 2125 1UF 16V Z F C84 RC005202 BCML311045Z CERAMIC M L 0 1UF 16V K B C85...

Страница 35: ...CERAMIC M L 0 001UF 50V K B C134 RC005202 BCML311045Z CERAMIC M L 0 1UF 16V K B C135 RC001803 BCAZ314716Z ELECTROLYTIC 470UF 16V M C 156 C136 RC005205 BCML811035Z CERAMIC M L 0 01UF 50V K B C137 RC001794 BCAZ111016Z ELECTROLYTIC 100UF 10V M C 156 C138 RC008731 BCXK311050Z CERAMIC M L 2125 1UF 16V Z F C139 RC005214 BCMM812214Z CERAMIC M L 220PF 50V J CH C140 RC005214 BCMM812214Z CERAMIC M L 220PF 5...

Страница 36: ...C M L 100PF 50V J CH C630 RC005210 BCMM811014Z CERAMIC M L 100PF 50V J CH C631 RC008268 BCML314735Z CERAMIC M L 0 047UF 16V K B C632 RC008319 BCSH904796Z TANTALUM CHIP 4 7UF 6 3V M C 122 C633 RC008268 BCML314735Z CERAMIC M L 0 047UF 16V K B C634 RC005205 BCML811035Z CERAMIC M L 0 01UF 50V K B C635 RC005202 BCML311045Z CERAMIC M L 0 1UF 16V K B C637 RC005205 BCML811035Z CERAMIC M L 0 01UF 50V K B C...

Страница 37: ...08272 BCTY0076100 TRIMMER CT 076 TZ3Z100FR 10PF DIODES D1 RC002236 BDAY0246003 1N4148 T 77 D2 RC002236 BDAY0246003 1N4148 T 77 D3 RC002468 BDAY0492008 ZENER HZ33 2 TD D4 RC002236 BDAY0246003 1N4148 T 77 D5 RC002236 BDAY0246003 1N4148 T 77 D6 RC002236 BDAY0246003 1N4148 T 77 D7 RC003194 BDAY0272010 ZENER HZ33CP D8 RC002236 BDAY0246003 1N4148 T 77 D9 RC002236 BDAY0246003 1N4148 T 77 D10 RC009738 BDA...

Страница 38: ...029 JK 1216 29FU BT K 29P J601 RC001653 BJKY0571001 JK 571 M60 002 020 HKAD COILS L1 RC004073 BLZY0051479 INDUCTOR MOLDED LZ 051 SP0305 4R7K 4 7UH L2 RC008397 BLZY0136100 INDUCTOR MOLDED CHIP LZ 136 MLF1608K100KT 10UH L3 RC004073 BLZY0051479 INDUCTOR MOLDED LZ 051 SP0305 4R7K 4 7UH L4 RC008281 BLBY1175001 COIL LB 1175 7002BE A0026HM L5 RC004073 BLZY0051479 INDUCTOR MOLDED LZ 051 SP0305 4R7K 4 7UH ...

Страница 39: ...C003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q609 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q610 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q611 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q612 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q613 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B RESISTORS R1 RC005249 BRFC162244Z CARBON FIXED CHIP 220K 1 16W J R2 RC005252 BRFC163314Z CARBON FIXED CHIP 330 1 16W J...

Страница 40: ...005241 BRFC161034Z CARBON FIXED CHIP 10K 1 16W J R51 RC005253 BRFC163324Z CARBON FIXED CHIP 3 3K 1 16W J R52 RC005239 BRFC161014Z CARBON FIXED CHIP 100 1 16W J R53 RC008480 BRFC166844Z CARBON FIXED CHIP 680K 1 16W J R54 RC005279 BRFC161514Z CARBON FIXED CHIP 150 1 16W J R55 RC009303 BRFC164794Z CARBON FIXED CHIP 4 7 1 16W J R56 RC009303 BRFC164794Z CARBON FIXED CHIP 4 7 1 16W J R59 RC005239 BRFC16...

Страница 41: ...IAL LEAD 52 470 1 2W J R110 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R111 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R112 RC008091 BRFC165614Z CARBON FIXED CHIP 560 1 16W J R113 RC005241 BRFC161034Z CARBON FIXED CHIP 10K 1 16W J R114 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R115 RC005248 BRFC162234Z CARBON FIXED CHIP 22K 1 16W J R120 RC005240 BRFC161024Z CARBON FIXED C...

Страница 42: ...024Z CARBON FIXED CHIP 1K 1 16W J R175 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R176 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R177 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R178 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R179 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R180 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R181 RC005240 BRFC161024Z CARBON F...

Страница 43: ...HIP 820K 1 16W J R635 RC005245 BRFC161834Z CARBON FIXED CHIP 18K 1 16W J R636 RC005280 BRFC161534Z CARBON FIXED CHIP 15K 1 16W J R637 RC005254 BRFC164704Z CARBON FIXED CHIP 47 1 16W J R638 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R639 RC005280 BRFC161534Z CARBON FIXED CHIP 15K 1 16W J R640 RC005245 BRFC161834Z CARBON FIXED CHIP 18K 1 16W J R641 RC005285 BRFC165634Z CARBON FIXED CHIP 56K...

Страница 44: ...0 5 RED W2 RC009554 CUPK009022Z WIRE W 004 UL 1571 26 5 90 5 BLK W3 RC008999 CUPK013032Z WIRE W 004 UL 1571 26 7 130 5 BLK W4 RC008998 CUPB013032Z WIRE W 004 UL 1571 26 7 130 5 RED W601 RC008329 CZDZ072199Z WIRES ASSEMBLED W 072199 W751 RC008138 CUPB006022Z WIRE W 004 UL 1571 26 5 60 5 RED W752 RC008141 CUPK006022Z WIRE W 004 UL 1571 26 5 60 5 BLK W801 RC008581 CUPB007011Z WIRE W 004 UL 1571 26 3 ...

Страница 45: ...able as replacement parts Order parts necessary for repair or contact the Toshiba Factory Service Center LOC NO PART NO REF NO DESCRIPTION RC009876 AC315BHBA BASE MAIN PCB ASSEMBLY RC009877 AC315BHBC BASE KEY PCB ASSEMBLY RC009878 AC315BHPA HANDSET MAIN PCB ASSEMBLY ...

Страница 46: ...26 897468 MHz 20 903 002467 MHz 926 947468 MHz 21 903 052467 MHz 926 997467 MHz 22 903 102467 MHz 927 047467 MHz 23 903 152467 MHz 927 097467 MHz 24 903 202468 MHz 927 147467 MHz 25 903 252468 MHz 927 197467 MHz 26 903 302468 MHz 927 247467 MHz 27 903 352468 MHz 927 297467 MHz 28 903 402468 MHz 927 347466 MHz 29 903 452468 MHz 927 397466 MHz 30 903 502468 MHz 927 447466 MHz 31 903 552468 MHz 927 4...

Страница 47: ... 15 0 19 0 11 0 3 Frequency Response Ref 1 kHz 0 3 kHz input dB 2 5 6 5 1 5 3 0 kHz input dB 4 5 0 5 8 5 4 TX Frequency Tolerance 25 C Hz 0 2500 5 Code Deviation kHz 9 0 129 7 6 Distortion 1 5 5 0 7 Adjacent CH Power dB 55 50 dB 55 50 8 S N Ratio with CCITT Filter dB 40 30 TELEPHONE LINE 1 Off hook Impedance at 1 kHz ohm 1000 500 1500 2 Off hook DC Resistance DC 40 0 mA ohm 250 100 300 3 On hook I...

Страница 48: ...ensitivity Mic Input mV 9 0 6 4 12 7 3 AF Frequency Response Ref 1kHz 0 3 kHz dB 0 0 4 0 4 0 3 0 kHz dB 0 5 4 5 3 5 4 TX Frequency Tolerance Hz 0 2500 5 Code Deviation kHz 9 0 12 0 6 Distortion 1 5 5 0 7 Adjacent CH Power dB 55 50 dB 55 50 8 S N Ratio with CCITT Filter dB 35 30 POWER CONSUMPTION 1 Base Unit with AC Adaptor Answer off a Stand by Charge Off mA 130 150 b Stand by Charge On mA 210 180...

Страница 49: ...TOSHIBA AMERICA CONSUMER PRODUCTS INC 82 TOTOWA ROAD WAYNE N J 07470 TOSHIBA HAWAII INC 327 KAMAKEE ST HONOLULU H I 96814 ...

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