Toshiba FT-8981 Service Manual Download | Manualshive

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ELECTRICAL PARTS LOCATION

Base Unit

Main PCB

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Summary of Contents for FT-8981

Page 1: ...SERVICE MANUAL PUBLISHED IN JAPAN May 2001 FILE NO 2B0 200104 FT 8981 CORDLESS TELEPHONE ...

Page 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 ...

Page 3: ...TONE Button MEM Memory Button PAUSE Button Charging contact DELETE CH Button FUNC Button Antenna CID Button SELECT Button Dialpad Rechargeable Battery Pack back LCD Display VOL RING Button L D Button PULSE Button FLASH Button LOCAL Button TALK ABC2 JKL 5 TUV8 OPER TONE MEM PAUSE FUNC CH DELETE LOCAL L D SELECT REDIAL FLASH VOL RING CID 0 DEF3 MNO6 WX YZ PQ RS 9 GHI4 7 1 COMPANDOR NOISE REDUCTION R...

Page 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 ...

Page 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...

Page 6: ...1mV No modulation SG 1mV 1 kHz 8kHz deviation SG 6 0dBµV No modulation Remarks Connect 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 voltme...

Page 7: ...r 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 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 uni...

Page 8: ... 1kHz 8kHz Deviation Remarks Press the 4 key to enter the TEST Mode 4 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 DC Voltmeter to the Discriminator test point Adjust L603 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 99...

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

Page 10: ... 9 Handset ...

Page 11: ...SCHEMATIC DIAGRAMS Base Unit 10 11 FT8981 Sche p65 01 05 25 13 21 Page 8 Adobe PageMaker 6 5J Win ...

Page 12: ...Handset 12 13 FT8981 Sche p65 01 05 25 13 21 Page 9 Adobe PageMaker 6 5J Win ...

Page 13: ...r connected to the wall outlet Make sure that the telephone line cord remains disconnected during this procedure 2 While pressing the DELETE button plug the AC power adaptor into the base Keep pressing the DELETE button for more than 5 seconds A beep sounds and P blinks in the LED display To resume using the unit connect the telephone line cord and place the handset on the base NOTE If you turn on...

Page 14: ...se 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 58 of IC603 be seen Check RINGER Y601 Check DSP unit See 3 The base and handset cannot be connected Check IC603 OK OK OK NG OK NG NG NG At the Q616 collector can the pulse wave be seen OK Check R688 R673 Q616 R689 R672 Q617 R629 and D604 NG...

Page 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 IC603 and its peripheral circuit Check the TX POWER and theTX FREQUENCY on the handset unit OK NG C...

Page 16: ...t signal from RF test point is applied Check whether the bell ring NG Check whether the 250 Hz data waveform from pin 9 of IC606 is fed Check IC606 Q612 and their peripheral circuit NG OK OK Check whether there is a 250 Hz data waveform at the Q601 collector Check RT602 Q601 and their peripheral circuit NG OK Check whether there is a 250 Hz data waveform at pin 55 of IC603 Check R618 R621 IC601 an...

Page 17: ...80 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 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 base...

Page 18: ...al 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 wavef...

Page 19: ...tput 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 IC606 on the handset unit Check IC606 Q612 and their peripheral circuit NG OK Check whether there is the 1 kHz sine waveform at pin 3 of IC601 Check RT602 Q601 and their peripheral circuits NG OK Check whether there is th...

Page 20: ... 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 0 0 GND 0 0 GND Q600...

Page 21: ...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 15 0 0 GND 0 0 GND 16 1 9 2 1 1 7 1 3 7 COL00 3 7 COL00 2 3 7 COL01 3 7 COL01 3 3 7 COL02 3 7 COL02 IC4 4 3 7 COL03 3 7 COL03 5 3 7 COL04 3 7 COL04 6 2 7 INUSE_LED 0 2 I...

Page 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 ...

Page 23: ...STBY TALK Note Note 6 5 5 5 5 IC9 7 0 0 8 2 4 2 4 1 2 0 INTERVAL 1 7 2 2 0 INTERVAL 1 7 3 1 6 INTERVAL 1 5 4 0 8 INTERVAL 0 6 5 1 4 INTERVAL 1 5 6 1 4 INTERVAL 1 5 7 1 8 INTERVAL 1 7 8 3 0 INTERVAL 3 0 9 0 0 GND 0 0 GND 10 3 0 SQURE int 3 0 SQURE 11 0 0 GND 0 0 GND 12 1 4 1 5 IC601 13 3 0 INTERVAL 3 0 14 1 4 INTERVAL 1 5 INTERVAL None 15 1 4 None 1 5 Connect Connect 16 0 0 2 8 17 0 0 2 8 18 1 4 IN...

Page 24: ...nect Connect 41 2 7 INTERVAL 0 0 42 2 7 INTERVAL 2 7 43 0 0 0 0 44 2 8 INTERVAL 0 1 45 0 0 None 0 0 None Connect Connect 46 2 7 Pulse 0 0 47 2 7 Pulse 0 0 48 2 7 Pulse 2 9 49 0 0 GND 0 0 GND 50 0 0 2 7 51 0 0 2 9 with LoPULSE 52 0 0 2 7 SQURE 53 0 0 0 0 54 0 0 2 9 55 0 0 2 9 SQURE 56 2 9 2 9 57 0 0 2 7 SQURE Ref No Pin STBY TALK Note Note 58 0 0 0 0 59 0 0 0 0 60 0 9 INTERVAL 1 0 IC603 61 2 8 2 9 ...

Page 25: ...ute 14 Scan Control 13 Squelch Input 12 Filter Output 11 Filter Input 10 Audio Output 9 1 Osc 2 3 Mixer Output 4 Vcc 5 Limiter Input 6 Decoupling 7 8 Quadrature Input 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 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Cathode G1 Cathode A1 Cathode F1 Cathode...

Page 26: ...SS 1 2 3 6 5 4 VIN GND VOUT Vss CE RE R B GND N C N C N C N C N C N C N C N C N C N C N C N C I O7 I O6 I O5 I O4 Vcc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 Vss CLE ALE WE WP N C N C N C N C N C N C N C N C N C N C N C N C I O0 I O1 I O2 I O3 Vss V DET 2 5 V IN 2 4 1 V DET 1 2 V IN 1 3 V SS IC605 XC612N3328MR IC8 X...

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

Page 28: ... 29 Handset Main PCB ...

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

Page 30: ... 31 Handset ...

Page 31: ...22 16 3 4 15 22 22 13 17 2 10 BASE KEY PCB ASSY RF MODULE BASE AT751 SP751 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 SP801 HANDSET 73 59 61 70 56 51 22 72 62 22 22 57 22 67 71 21 66 52 65 68 54 53 63 60 55 58 69 64 ...

Page 32: ...T BIND HD D2 6X14 NI 24 RC001752 SSCW283012N SCREW TAPPING BIND SP WASHER D3X12 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 RC009366 RBLD447533Z BLIND PC 53 RC009868 GNBZ467660Z BUTTON FUNCTION ABS 54 RC009870 GNBZ467662Z BUTTON FUNCTION COMP ABS 55 RC009866 GCAS367521Z CASE FRONT ABS 56 RC00944...

Page 33: ...472 BCEQ814786Z C ELECTROLYTIC 0 47UF 50V M C 125 C014 RC009195 BCEQ814796Z C ELECTROLYTIC 4 7UF 50V M C 125 C015 RC008843 BCML313335Z C CERAMIC M L 1608 TAPE 0 033UF 16V K B C016 RC009195 BCEQ814796Z C ELECTROLYTIC 4 7UF 50V M C 125 C017 RC001045 BCEQ311006Z C ELECTROLYTIC 10UF 16V M C 125 C018 RC005204 BCML811025Z C CERAMIC M L 1608 TAPE 0 001UF 50V K B C019 RC005203 BCML512235Z C CERAMIC M L 16...

Page 34: ...4 RC005208 BCML814725Z C CERAMIC M L 1608 TAPE 0 0047UF 50V K B C075 RC005205 BCML811035Z C CERAMIC M L 1608 TAPE 0 01UF 50V K B C077 RC005203 BCML512235Z C CERAMIC M L 1608 TAPE 0 022UF 25V K B C078 RC005202 BCML311045Z C CERAMIC M L 1608 TAPE 0 1UF 16V K B C079 RC005274 BCML811535Z C CERAMIC M L 1608 TAPE 0 015UF 50V K B C081 RC005274 BCML811535Z C CERAMIC M L 1608 TAPE 0 015UF 50V K B C082 RC00...

Page 35: ...ERAMIC M L 1608 TAPE 0 1UF 16V K B C131 RC005216 BCMM813304Z C CERAMIC M L 1608 TAPE 33PF 50V J CH C132 RC005204 BCML811025Z C CERAMIC M L 1608 TAPE 0 001UF 50V K B C133 RC005204 BCML811025Z C CERAMIC M L 1608 TAPE 0 001UF 50V K B C134 RC005202 BCML311045Z C CERAMIC M L 1608 TAPE 0 1UF 16V K B C135 RC001803 BCAZ314716Z C ELECTROLYTIC 470UF 16V M C 156 C136 RC005205 BCML811035Z C CERAMIC M L 1608 T...

Page 36: ...E 10UF 6 3V M C 122 C620 RC005205 BCML811035Z C CERAMIC M L 1608 TAPE 0 01UF 50V K B C621 RC005203 BCML512235Z C CERAMIC M L 1608 TAPE 0 022UF 25V K B C622 RC005208 BCML814725Z C CERAMIC M L 1608 TAPE 0 0047UF 50V K B C623 RC005202 BCML311045Z C CERAMIC M L 1608 TAPE 0 1UF 16V K B C624 RC008268 BCML314735Z C CERAMIC M L 1608 TAPE 0 047UF 16V K B C625 RC005205 BCML811035Z C CERAMIC M L 1608 TAPE 0 ...

Page 37: ... C CERAMIC M L 2125 TAPE 1UF 16V Z F C683 RC005205 BCML811035Z C CERAMIC M L 1608 TAPE 0 01UF 50V K B C684 RC005205 BCML811035Z C CERAMIC M L 1608 TAPE 0 01UF 50V K B C685 RC005209 BCMM811002Z C CERAMIC M L 1608 TAPE 10PF 50V D CH C686 RC005209 BCMM811002Z C CERAMIC M L 1608 TAPE 10PF 50V D CH C687 RC005220 BCMM816804Z C CERAMIC M L 1608 TAPE 68PF 50V J CH C688 RC008515 BCMM815604Z C CERAMIC M L 1...

Page 38: ...FILTER CERAMIC FL 971 FFE1054NA11UXL FT002 RC008280 BFLY0977001 FILTER CERAMIC FL 977 LTFS455B5 FT601 RC008279 BFLY0971001 FILTER CERAMIC FL 971 FFE1054NA11UXL FT602 RC008280 BFLY0977001 FILTER CERAMIC FL 977 LTFS455B5 IC s IC001 RC009438 BDEY3972003 INTEGRATED CIRCUIT LA8634VU TLM IC002 RC004774 BDEY2957001 INTEGRATED CIRCUIT LTV 817 CD IC003 RC009855 BDEY3871003 INTEGRATED CIRCUIT KA3361CDTF IC0...

Page 39: ...8 TRANSISTOR DB 380 2SC1623 L6 T1B Q008 RC003200 BDBD0471111 TRANSISTOR DB 411 2SD471 L Q009 RC003031 BDBC1623648 TRANSISTOR DB 380 2SC1623 L6 T1B Q010 RC003031 BDBC1623648 TRANSISTOR DB 380 2SC1623 L6 T1B Q011 RC003031 BDBC1623648 TRANSISTOR DB 380 2SC1623 L6 T1B Q012 RC003031 BDBC1623648 TRANSISTOR DB 380 2SC1623 L6 T1B Q013 RC003031 BDBC1623648 TRANSISTOR DB 380 2SC1623 L6 T1B Q014 RC003200 BDB...

Page 40: ...ED CHIP 820 1 16W J TAPE R024 RC009037 BRZY0084001 R METAL OXIDE FORMED RZ 084 150 1WS J P 12 5 R026 RC005241 BRFC161034Z R CARBON FIXED CHIP 10K 1 16W J TAPE R027 RC005240 BRFC161024Z R CARBON FIXED CHIP 1K 1 16W J TAPE R028 RC005248 BRFC162234Z R CARBON FIXED CHIP 22K 1 16W J TAPE R029 RC005673 BRFC163934Z R CARBON FIXED CHIP 39K 1 16W J TAPE R030 RC005311 BRFC160004Z R CARBON FIXED CHIP 0 1 16W...

Page 41: ...N FIXED CHIP 1K 1 16W J TAPE R081 RC005240 BRFC161024Z R CARBON FIXED CHIP 1K 1 16W J TAPE R082 RC005241 BRFC161034Z R CARBON FIXED CHIP 10K 1 16W J TAPE R083 RC005240 BRFC161024Z R CARBON FIXED CHIP 1K 1 16W J TAPE R084 RC005242 BRFC161044Z R CARBON FIXED CHIP 100K 1 16W J TAPE R085 RC005241 BRFC161034Z R CARBON FIXED CHIP 10K 1 16W J TAPE R086 RC008479 BRFC161844Z R CARBON FIXED CHIP 180K 1 16W ...

Page 42: ...N FIXED CHIP 1K 1 16W J TAPE R143 RC005281 BRFC162224Z R CARBON FIXED CHIP 2 2K 1 16W J TAPE R144 RC005286 BRFC165644Z R CARBON FIXED CHIP 560K 1 16W J TAPE R145 RC005261 BRFC168224Z R CARBON FIXED CHIP 8 2K 1 16W J TAPE R146 RC005240 BRFC161024Z R CARBON FIXED CHIP 1K 1 16W J TAPE R147 RC008735 BRFC166824Z R CARBON FIXED CHIP 6 8K 1 16W J TAPE R148 RC005242 BRFC161044Z R CARBON FIXED CHIP 100K 1 ...

Page 43: ...D CHIP 100K 1 16W J TAPE R199 RC005241 BRFC161034Z R CARBON FIXED CHIP 10K 1 16W J TAPE R201 RC005257 BRFC164734Z R CARBON FIXED CHIP 47K 1 16W J TAPE R202 RC005257 BRFC164734Z R CARBON FIXED CHIP 47K 1 16W J TAPE R203 RC005257 BRFC164734Z R CARBON FIXED CHIP 47K 1 16W J TAPE R204 RC005257 BRFC164734Z R CARBON FIXED CHIP 47K 1 16W J TAPE R206 RC009303 BRFC164794Z R CARBON FIXED CHIP 4 7 1 16W J TA...

Page 44: ...08029 BRFC163924Z R CARBON FIXED CHIP 3 9K 1 16W J TAPE R628 RC005288 BRFC168244Z R CARBON FIXED CHIP 820K 1 16W J TAPE R629 RC008732 BRFC161214Z R CARBON FIXED CHIP 120 1 16W J TAPE R630 RC005240 BRFC161024Z R CARBON FIXED CHIP 1K 1 16W J TAPE R631 RC005285 BRFC165634Z R CARBON FIXED CHIP 56K 1 16W J TAPE R632 RC005242 BRFC161044Z R CARBON FIXED CHIP 100K 1 16W J TAPE R633 RC005240 BRFC161024Z R ...

Page 45: ...BON FIXED CHIP 22 1 16W J TAPE R681 RC005239 BRFC161014Z R CARBON FIXED CHIP 100 1 16W J TAPE R682 RC005311 BRFC160004Z R CARBON FIXED CHIP 0 1 16W J TAPE R683 RC005241 BRFC161034Z R CARBON FIXED CHIP 10K 1 16W J TAPE R687 RC005242 BRFC161044Z R CARBON FIXED CHIP 100K 1 16W J TAPE R688 RC005281 BRFC162224Z R CARBON FIXED CHIP 2 2K 1 16W J TAPE R689 RC005281 BRFC162224Z R CARBON FIXED CHIP 2 2K 1 1...

Page 46: ...ICROPHONE MK 534 F9767AP382 01 RL001 RC000867 BRLY0042001 RELAY RL 042 OMR 108H SP751 RC009891 BSPY0417001 SPEAKER SP 417 301030 SP801 RC008336 BSPY0409001 SPEAKER SP 409 DTR169HP 005 W001 RC009388 CUPB009022Z WIRE W 004 UL 1571 26 5 90 5 RED W002 RC009554 CUPK009022Z WIRE W 004 UL 1571 26 5 90 5 BLK W003 RC008999 CUPK013032Z WIRE W 004 UL 1571 26 7 130 5 BLK W004 RC008998 CUPB013032Z WIRE W 004 U...

Page 47: ...able as replacement parts Order parts necessary for repair or contact the Toshiba Factory Service Center LOC NO PART NO REF NO DESCRIPTION RC009909 AC316BHBA BASE MAIN PCB ASSEMBLY RC009877 AC315BHBC BASE KEY PCB ASSEMBLY RC009910 AC316BHPA HANDSET MAIN PCB ASSEMBLY ...

Page 48: ...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...

Page 49: ...m 15 0 19 0 11 0 3 Frequency Response Ref 1 kHz 0 3 kHz input dB 3 0 7 0 1 0 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 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 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...

Page 50: ...er Bell input 2 TONE VOL HI dBSPL 87 75 2 TONE VOL LO dBSPL 74 57 3 TONE VOL HI dBSPL 79 60 3 TONE VOL LO dBSPL 67 47 TRANSMITTER 1 RF Power 50 Ω Load dBm 5 0 8 0 2 0 2 Modulation Sensitivity 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 1 0 5 0 3 0 4 TX Frequency Tolerance Hz 0 2500 5 Code Deviation kHz 9 0 12 0 6 Distortion 1 5 5 0 7 Adjacent CH Pow...

Page 51: ... Ni Cd Battery 600 mAH 1 2 V 3 3 6 V 2 Memory 10 Memories NAME 14 Digits Number 20 Digits 1 Redial Memory 32 Digits 20CID Memories NAME 15 Digits Number 15 Digits 3 Operating Temperature 10 C 50 C 4 Storage Temperature 20 C 60 C 5 Dial Mode Switch DTMF PULSE 10pps Soft Selectable REQUIREMENTS COMPLIANCE Unit is designed to fully meet with UL 1950 and FCC Rules Part 15 and 68 ...

Page 52: ...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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