Toshiba FT-8800 Service Manual Download Page 19 | Manualshive

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20

IC AND TRANSISTOR VOLTAGE CHART

Base Unit

Unit[V]

Unit[V]

1

1.7V DC

1.7V DC

2

1.7V DC

1.7V DC

3

1.7V DC

1.7V DC

4

0.7V DC

1.7V DC

5

1.7 VDC

1.7V DC

6

1.7V DC

1.7V DC

7

1.7V DC

1.7V DC

8

3.2V

3.2V

9

0V

0V

GND

10

0-3.2V

0-3.2V

PULSE

11

0V

0V

GND

IC1

12

1.7V DC

1.7V DC

13

3.2V DC

3.2V DC

Vcc

14

1.7V DC

1.7V DC

15

1.7V DC

1.7V DC

16

0‚u DC

3.2V DC

RXMUTE

17

0V DC

3.2V DC

TXMUTE

18

1.7V DC

1.7V DC

19

1.7V DC

1.7V DC

20

1.7V DC

1.7V DC

21

0.6V DC

0.6V DC

22

1.7V DC

1.7V DC

23

1.7V DC

1.7V DC

24

1.7V DC

1.7V DC

1

0V

3.2V DC

TALK

2

0V

3.2V DC

TONE

3

0V

3.2V DC

4

0V

0V

5

0V

0V

6

0V

0V

7

0V

3.2V DC

TXMUTE

8

0V

3.2V DC

RXMUTE

9

0V

0V

IC2

10

3.2V DC

3.2V DC

VDD

11

2.7V DC

0.1V DC

12

1.0V DC

1.0V DC

13

0V

0V

14

0V

0V

15

3.2V DC

0.1V DC

LED1

16

3.2V DC

0.1V DC

LED2

17

0V

0V

18

0V

0V

19

0V

3.1V DC

20

3.2V DC

3.2V DC

Ref. No.

PIN

STBY

TALK

NOTE

Ref. No.

PIN

STBY

TALK

NOTE

21

2.6V DC

2.6V DC

22

0-3.2V DC

0V

SQ

23

3.2V DC

3.2V DC

24

3.2V DC

3.2V DC

VDD

25

0V

0V

26

0V

0V

27

0V

0V

28

0V

0V

29

0V

0V

30

0V

0V

31

3.2V DC

3.2V DC

32

3.2V DC

3.2V DC

33

0V

0V

GND

34

3.2V DC

3.2V DC

35

3.2V DC

3.2V DC

36

3.2V DC

3.2V DC

37

3.2V DC

3.2V DC

38

0V

0V

GND

39

0V

0V

GND

40

0.3-3.0V

0.3-3.0V

SINE WAVE

41

0.4-2.4V

0.4-2.4V

SINE WAVE

IC2

42

0V

0V

GND

43

0V

0V

44

0V

0V

45

0V

0V

46

0V

0V

47

2.4V DC

2.4V DC

48

3.1-3.2V

3.1-3.2V

PULSE

49

0V

0V

50

2.7V DC

2.7V DC

51

0V

0V

52

0V

0V

53

0V

0V

54

0V

0V

55

0V

0V

56

0V

0V

57

0V

0V

58

0V

0V

59

0V

0V

60

0V

0V

61

0V

0V

62

0V

0V

63

0V

0V

64

0V

0V

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19
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21
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Summary of Contents for FT-8800

Page 1: ...CORDLESS TELEPHONE SERVICE MANUAL FILE NO 2B0 200007 FT 8800 PUBLISHED IN JAPAN Sep 2000 ...

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: ...act DELETE CH Button FUNC Button Antenna CID Button SELECT Button Dialpad Rechargeable Battery Pack back LCD Display VOL RING Button Cradle L D Button FLASH Button LOCAL Button TALK ABC IN USE PAGE CHARGE 2 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 DIGITAL CALLER ID CORDLESS TELEPHONE COMPANDOR NOISE REDUCTION COMPAN...

Page 4: ...point on the Base MAIN PCB Adjust RT301 for a 7dBm 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 15dBm from the AF Generator Connect the Dev...

Page 5: ...r 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 Discriminator test point Adjust L3 to indicate DC 0 95 V Connect the AC Voltmeter across a 600 ohm dummy to the Telephone Line Jack Adjust RT2 for a 11dBm reading on the AC voltmeter Press the PAGE key to enter the TEST Mode 5 Make sure that the frequency of RF SG output is 90...

Page 6: ...he RF power Meter to the RF test point on the handset MAIN PCB Adjust RT501 for a 5dBm 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 Generator C...

Page 7: ...oint 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 997467 MHz Connect the AC Voltmeter across a 150 ohm dummy to the MIC Connector Adjust RT602 for a 100 mV reading on the...

Page 8: ...7 BLOCK DIAGRAMS Base Unit B301 ...

Page 9: ...8 Handset B501 ...

Page 10: ...9 10 SCHEMATIC DIAGRAMS Base Unit B301 RF MODULE ...

Page 11: ...11 12 Handset B501 RF MODULE ...

Page 12: ...oes not ring page does not ring OK OK NG NG OK NG Deletion of the Caller ID memory To delete the Caller ID memory in the EEPROM proceed with the following process 1 Connect the battery with pressing and buttons and keep pressing the buttons continuously for approximate 2 seconds 2 Release buttons when entering TEST mode with beep 3 Press CID button 4 A confirmation beep will sound after about 8 se...

Page 13: ...e is pressed does pin32 of IC2 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 R55 R77 and S1 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 R689 R672 R629 Q616 and Q617 NG...

Page 14: ... Check base RF unit Press PAGE key 7 times 902 952467 MHz 250 Hz 8 kHz Dev 1mV output signal from RF jack is applied Can the IN USE LED be lighted OK NG Check whether there is a 250 Hz data waveform at pin 9 of IC3 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 23 of IC2 Ch...

Page 15: ...kHz Dev 1mV output signal from RF jack is applied Check whether the bell ring NG Check whether the 250 Hz data waveform from pin 9 of IC606 is fed NG 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 IC601 and their peripheral circuit NG OK Check IC603 and...

Page 16: ... 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 20 of IC8 is fed Check IC8 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: ...ut signal 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 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 waveform at pin 18 of IC1 Check IC1 and ...

Page 18: ... OK TX output 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 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 the 1 kHz sine waveform at the pin 18 o...

Page 19: ...C2 10 3 2V DC 3 2V DC VDD 11 2 7V DC 0 1V DC 12 1 0V DC 1 0V DC 13 0V 0V 14 0V 0V 15 3 2V DC 0 1V DC LED1 16 3 2V DC 0 1V DC LED2 17 0V 0V 18 0V 0V 19 0V 3 1V DC 20 3 2V DC 3 2V DC Ref No PIN STBY TALK NOTE Ref No PIN STBY TALK NOTE 21 2 6V DC 2 6V DC 22 0 3 2V DC 0V SQ 23 3 2V DC 3 2V DC 24 3 2V DC 3 2V DC VDD 25 0V 0V 26 0V 0V 27 0V 0V 28 0V 0V 29 0V 0V 30 0V 0V 31 3 2V DC 3 2V DC 32 3 2V DC 3 2...

Page 20: ...12 0V 0V 13 0V 0V 14 5 0V DC 5 0V DC 15 5 0V DC 5 0V DC 16 5 0V DC 5 0V DC 17 0V 0V 18 2 5V DC 2 5V DC 19 2 5V DC 2 5V DC 20 2 5V DC 2 5V DC 1 3 2V DC 3 2V DC IC6 2 3 2V DC 3 2V DC 3 0V 0V 1 3 2V DC 3 2V DC 2 1 2V DC 1 2V DC 3 0V 0V 4 2 8V DC 2 8V DC 5 2 8V DC 2 8V DC 6 0V 0V 7 0V 0V GND 8 0V 0V 9 3 0Vpp 3 0Vpp SINE WAVE IC8 10 0 3 2V 0 3 2V 11 0V 0V 12 3 2V DC 3 2V DC 13 0V 0V 14 0V 0V 15 0V 0V 1...

Page 21: ...22 Ref No PIN STBY TALK NOTE Unit V E 0V 0V GND Q10 C 9V DC 0V B 0V 0 8V E 3 2V DC 3 2V DC Q11 C 5 2V DC 5 2V DC B 3 8V DC 3 8V DC E 2 6V DC 2 6V DC Q16 C 0V 2 6V DC B 2 5V DC 2 2V DC ...

Page 22: ... SP VOL 11 3 0V DC 3 0V DC VCC 12 0V DC 0V DC 13 0V DC 0V DC GND 14 3 2V DC 3 2V DC BATSAVE 15 3 2V DC 3 2V DC 16 0V DC 0V DC 17 1 4 3 0V 3 0V DC W U 18 0V DC 0V DC GND 19 3 0V DC 3 0V DC RST 20 0V DC 0V DC GND 21 0V DC 0V DC GND 22 0 3 1 9V 0 3 1 9V SINE WAVE 23 0 3 0V 0 3 0V SINE WAVE 24 0V DC 0V DC GND 25 0V DC 0V DC 26 0V DC 2 9V DC LCD 27 0V DC 2 9 0V SP VOL2 28 0V DC 2 9V DC MIC ON 29 0V DC ...

Page 23: ...STBY TALK NOTE Ref No PIN STBY TALK NOTE Unit V Unit V 60 0V DC 0V DC 61 3 0V DC 3 0V DC IC603 62 3 0V DC 3 0V DC 63 3 0V DC 3 0V DC 64 3 0V DC 3 0V DC 1 3 2V DC 3 2V DC IC604 2 3 8V DC 3 8V DC 3 0V DC 0V DC 1 3 2V DC 3 2V DC 2 3 8V DC 3 8V DC IC605 3 0V DC 0V DC 4 3 8V DC 3 8V DC 5 3 2V DC 3 2V DC 1 0 3 7V 2 3 3 7V SINE WAVE 2 0 2 9V 2 2 2 9V SINE WAVE 3 0 2 5V 2 2 2 8V 4 3 0V DC 3 0V DC 5 0 2 5V...

Page 24: ...D 2 XMIT 3 4 C1 5 C2 6 C3 7 VSS 8 9 OSCI 10 OSCO 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 D2 HZK7C Anode Cathode IC2 µPD780024AGC P47 AD7 64 P46 AD6 63 P45 AD5 62 P44 AD4 61 P43 AD3 60 P42 AD2 59 P41 AD1 58 P40 AD0 57 P67 ASTB 56 P66 W...

Page 25: ...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 IC608 24LC16BT SN IC603 MB89538PFM 1 2 3 IC609 RH5RE32AA Vcc 8 WP 7 6 SDA 5 1 A0 2 A1 SCL A2 3 4 Vss 64 P45 INT25 63 P44 INT24 62 P43 INT23 61 P42 INT22 60 P41 INT21 59 P40 EC INT20 58 P37 PTO1 57 P36 WTO 56 P35 PWC Vcc 55 P34 54 P33 SI1 UI1 53 17 P63 INT13 18 P64 1...

Page 26: ...27 ELECTRICAL PARTS LOCATION Base Unit Main PCB ...

Page 27: ...28 Handset Main PCB ...

Page 28: ...29 WIRING DIAGRAMS Base Unit ...

Page 29: ...30 Handset ...

Page 30: ...31 EXPLODED VIEWS AND MECHANICAL PARTS LIST Base Unit MAIN PCB ASSY RF MODULE BASE ANTENNA 15 4 12 12 12 1 10 6 3 14 11 2 13 9 13 7 5 8 ...

Page 31: ...S447683Z HOOK ABS 1 7 RC009531 PLBB448213A LABEL BARCODE 1 8 RC009534 PLBZ448214Z LABEL INDICATION 1 9 RC009535 PLBZ448215Z LABEL TA POLYESTER 1 10 RC009313 GCAS446076Z LED LENS PMMA 1 11 RC008289 SSCW192005N SCREW BIND HD M2 5 NI 4 12 RC000941 SSCW802608N SCREW P TIGHT BIND HD D2 6 8 NI 7 13 RC004028 SSCW802616N SCREW P TIGHT BIND HD D2 6 16 NI 4 14 RC001752 SSCW283012N SCREW TAPPING BIND SP WASH...

Page 32: ...33 Handset MAIN PCB ASSY RF MODULE HANDSET 24 9 11 6 1 23 22 12 23 23 7 23 17 20 21 16 2 15 18 4 3 13 10 5 8 19 14 ...

Page 33: ...LTOPREN 1 12 RC005609 RCUN451805Z CUSHION NEOPRENE 1 13 RC008466 RCUN459780Z CUSHION NEOPRENE 1 14 RC009527 GCAS447695Z DISPLAY WINDOW PMMA 1 15 RC009328 LHDZ446090Z DUAL HOLDER EPDM 1 16 RC009356 GHDZ444918A HOLDER DISPLAY PC 1 17 RC009316 GHDZ346084Z HOLDER SPEAKER ABS 1 18 RC009329 LNBZ346091Z KEY RUBBER SI 1 19 RC009533 PLBS448216Z LABEL ID 1 20 RC008457 RETC459777Z REFLECTION SHEET 1 21 RC008...

Page 34: ...2125 0 1UF 25V K B C10 RC001809 BCAZ814786Z ELECTROLYTIC 0 47UF 50V M C 156 C11 RC001810 BCAZ814796Z ELECTROLYTIC 4 7UF 50V M C 156 C12 RC001810 BCAZ814796Z ELECTROLYTIC 4 7UF 50V M C 156 C13 RC008270 BCML811235Z CERAMIC M L 1608 0 012UF 50V K B C15 RC001809 BCAZ814786Z ELECTROLYTIC 0 47UF 50V M C 156 C16 RC005202 BCML311045Z CERAMIC M L 1608 0 1UF 16V K B C17 RC008731 BCXK311050Z CERAMIC M L 2125...

Page 35: ... BCAZ903316Z ELECTROLYTIC 330UF 6 3V M C 156 C57 RC005215 BCMM812704Z CERAMIC M L 1608 27PF 50V J CH C58 RC005215 BCMM812704Z CERAMIC M L 1608 27PF 50V J CH C59 RC004197 BCDR901016Z ELECTROLYTIC 100UF 6 3V M C 292 C60 RC008731 BCXK311050Z CERAMIC M L 2125 1UF 16V Z F C61 RC005275 BCML813925Z CERAMIC M L 1608 0 0039UF 50V K B C62 RC005209 BCMM811002Z CERAMIC M L 1608 10PF 50V D CH C63 RC005210 BCMM...

Page 36: ...ALUM CHIP 10UF 6 3V M C 122 C616 RC004347 BCXK514740Z CERAMIC M L 2125 0 47UF 25V Z F C617 RC004347 BCXK514740Z CERAMIC M L 2125 0 47UF 25V Z F C618 RC008731 BCXK311050Z CERAMIC M L 2125 1UF 16V Z F C619 RC008296 BCSH901006Z TANTALUM CHIP 10UF 6 3V M C 122 C620 RC005205 BCML811035Z CERAMIC M L 1608 0 01UF 50V K B C621 RC005203 BCML512235Z CERAMIC M L 1608 0 022UF 25V K B C622 RC008318 BCML815625Z ...

Page 37: ...14Z CERAMIC M L 1608 100PF 50V J CH C669 RC005210 BCMM811014Z CERAMIC M L 1608 100PF 50V J CH C670 RC005210 BCMM811014Z CERAMIC M L 1608 100PF 50V J CH C675 RC005202 BCML311045Z CERAMIC M L 1608 0 1UF 16V K B C676 RC005204 BCML811025Z CERAMIC M L 1608 0 001UF 50V K B C677 RC005202 BCML311045Z CERAMIC M L 1608 0 1UF 16V K B C678 RC005202 BCML311045Z CERAMIC M L 1608 0 1UF 16V K B C679 RC005202 BCML...

Page 38: ...DAY0274001 1SS226 TE85L D611 RC001635 BDAY0274001 1SS226 TE85L D612 RC009347 BDAY1109001 EMPG4868K 8C0 D613 RC009347 BDAY1109001 EMPG4868K 8C0 D614 RC009347 BDAY1109001 EMPG4868K 8C0 D615 RC008448 BDAY1065001 RB420D T146 FILTERS FT1 RC008279 BFLY0971001 CERAMIC FL 971 FFE1054NA11UXL FT2 RC008280 BFLY0977001 CERAMIC FL 977 LTFS455B5 FT601 RC008279 BFLY0971001 CERAMIC FL 971 FFE1054NA11UXL FT602 RC0...

Page 39: ... 2SD471 L Q8 RC003200 BDBD0471111 DB 411 2SD471 L Q9 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q10 RC001637 BDBC2712303 DB 381 2SC2712 GR TE85L Q11 RC003200 BDBD0471111 DB 411 2SD471 L Q16 RC008275 BDBA0812695 DB 035 2SA812 M M6A T1B Q600 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q601 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q602 RC003031 BDBC1623648 DB 380 2SC1623 L6 T1B Q603 RC003031 BDBC162...

Page 40: ...BRFC161034Z CARBON FIXED CHIP 10K 1 16W J R30 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R31 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R32 RC005257 BRFC164734Z CARBON FIXED CHIP 47K 1 16W J R33 RC005239 BRFC161014Z CARBON FIXED CHIP 100 1 16W J R34 RC005256 BRFC164724Z CARBON FIXED CHIP 4 7K 1 16W J R35 RC008286 BRFC162744Z CARBON FIXED CHIP 270K 1 16W J R36 RC005239 BRFC161014Z CAR...

Page 41: ...RBON FIXED CHIP 47K 1 16W J R78 RC004184 BRPA614734Z CARBON AXIAL LEAD 26 47K 1 6W J R79 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R80 RC008734 BRFC162254Z CARBON FIXED CHIP 2 2M 1 16W J R81 RC008765 BRFC161004Z CARBON FIXED CHIP 10 1 16W J R82 RC005285 BRFC165634Z CARBON FIXED CHIP 56K 1 16W J R83 RC005256 BRFC164724Z CARBON FIXED CHIP 4 7K 1 16W J R85 RC005258 BRFC164744Z CARBON FIXED ...

Page 42: ...614Z CARBON FIXED CHIP 560 1 16W J R126 RC002898 BRFC010004Z CARBON FIXED CHIP 0 1 10W J R127 RC005311 BRFC160004Z CARBON FIXED CHIP 0 1 16W J R128 RC005311 BRFC160004Z CARBON FIXED CHIP 0 1 16W J R129 RC002899 BRFC180004Z CARBON FIXED CHIP 0 1 8W J R130 RC005311 BRFC160004Z CARBON FIXED CHIP 0 1 16W J R131 RC002898 BRFC010004Z CARBON FIXED CHIP 0 1 10W J R133 RC005673 BRFC163934Z CARBON FIXED CHI...

Page 43: ...5634Z CARBON FIXED CHIP 56K 1 16W J R638 RC005285 BRFC165634Z CARBON FIXED CHIP 56K 1 16W J R639 RC005284 BRFC163334Z CARBON FIXED CHIP 33K 1 16W J R640 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R641 RC005253 BRFC163324Z CARBON FIXED CHIP 3 3K 1 16W J R642 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R643 RC005256 BRFC164724Z CARBON FIXED CHIP 4 7K 1 16W J R644 RC005240 BRFC161024Z CA...

Page 44: ...FC161034Z CARBON FIXED CHIP 10K 1 16W J R685 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R686 RC005240 BRFC161024Z CARBON FIXED CHIP 1K 1 16W J R687 RC005242 BRFC161044Z CARBON FIXED CHIP 100K 1 16W J R688 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R689 RC005281 BRFC162224Z CARBON FIXED CHIP 2 2K 1 16W J R690 RC008030 BRFC165624Z CARBON FIXED CHIP 5 6K 1 16W J R691 RC005257 BRFC1647...

Page 45: ... NCOG089 NCOG100 MC601 RC004062 BMKY0475001 MICROPHONE MK 475 WM 034BZ RL001 RC000867 BRLY0042001 RELAY RL 042 OMR 108H S1 RC004253 BSWY0784001 SWITCH SW 784 KSM0611B S2 RC003604 BSWY0755001 SWITCH SLIDE SW 755 SBHA12B 06 SP801 RC008336 BSPY0409001 SPEAKER SP 409 DTR169HP 005 W1 RC008998 CUPB013032Z WIRE W 004 UL 1571 26 7 130 5 RED W2 RC008999 CUPK013032Z WIRE W 004 UL 1571 26 7 130 5 BLK W601 RC...

Page 46: ...RC009344 WSLV444958Z SLEEVE LOC PART NO REF DESCRIPTION NO NO 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 RC009518 AC268BHBA BASE MAIN PCB ASSEMBLY RC009519 AC268BHPA HANDSET MAIN PCB ASSEMBLY ...

Page 47: ...MHz 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 927 497...

Page 48: ... 40mA 3 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 Hz kHz dB dB dB UNIT OHM OHM...

Page 49: ...TERY 3 Portable Unit a Stand by b Talk 4 Battery Low Detect Voltage FSK SENSITIVITY ON HOOK 1 Minimum Acceptable Signal Level with 25dB S N Ratio 2 Maximum Acceptable Signal Level with 25dB S N Ratio UNIT dBm dB dB dBV dBV dBV dBV dB kHz kHz dB dB DBSPL DBSPL DBSPL DBSPL UNIT dBm mV dB dB Hz kHz dB dB dB UNIT mA mA mA mA mA mA V UNIT dBm dBm NOMINAL 115 5 0 15 0 6 5 10 14 20 1 5 70 15 15 30 45 85 ...

Page 50: ......

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