Sony SPP-A941 - Cordless Telephone With Answering System Service Manual Download

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MICROFILM

SERVICE MANUAL

CORDLESS TELEPHONE

WITH ANSWERING SYSTEM

US Model

Canadian Model

SPECIFICATIONS

SPP-A941

Ver 1.1 1999. 11

Summary of Contents for SPP-A941 - Cordless Telephone With Answering System

Page 1: ...MICROFILM SERVICE MANUAL CORDLESS TELEPHONE WITH ANSWERING SYSTEM US Model Canadian Model SPECIFICATIONS SPP A941 Ver 1 1 1999 11 ...

Page 2: ...am BASE RF Board 25 5 7 Printed Wiring Board BASE MAIN Board 27 5 8 Schematic Diagram BASE MAIN Board 29 5 9 Printed Wiring Board BASE I TAD Board 32 5 10 Schematic Diagram BASE I TAD Board 33 5 11 Printed Wiring Board BASE KEY Board 35 5 12 Schematic Diagram BASE KEY Board 36 5 13 Printed Wiring Boards HAND RF MAIN Boards 37 5 14 Schematic Diagram HAND RF Board 39 5 15 Schematic Diagram HAND MAIN...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

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Page 11: ...ISASSEMBLY 5 Remove the hand cabinet rear to direction of the arrow B 1 Remove the battery case lid to direction of the arrow A 4 claw 3 two claws 3 two claws 2 two screws BTP3 12 A B 2 two screws BTP3 10 1 four screws P2 5 3 washer 6 vol knob 5 Remove the hand main board to direction of the arrow C 4 antenna ANT2 C ...

Page 12: ...SE MAIN BOARD BASE KEY BOARD 2 claw 2 claw 3 cabinet base bottom 1 five screws BTP3 12 1 three screws P3 8 3 screw P3 10 7 seven screws P3 10 8 base key board 5 base main board 2 three charge springs 4 harness 6 tone pulse knob ...

Page 13: ... off Function Transmit the tone signal for 3 seconds Operation Press the HANDSET LOCATOR key mo mentarily to transmit the tone signal and blinks the CHARGE LED Each time transmit it then change the fre quency of signal tone like 697 Hz 770 Hz 852 Hz 941 Hz 1209 Hz 1336 Hz 1477 Hz 1633 Hz 697 Hz default frequency is 697 Hz 3 Exiting the Test Mode Disconnect the power HANDSET 1 Entering the Test Mod...

Page 14: ...rm that the value of digital voltmeter is 0 5 Vdc to 4 3 Vdc 3 TX Frequency Adjustment 1 Connect the RF generator to TP ANT on the BASE RF board 2 Adjust C15 on the BASE MAIN board for 903 8 MHz 3 kHz reading on the RF generator 4 Quad Voltage Adjustment 1 Connect the digital voltmeter to TP16 RX AUDIO on the BASE MAIN board 2 Adjust C99 on the BASE RF board for 1 775 0 15 Vdc read ing on the digi...

Page 15: ...TP ANT BASE RF BOARD Side A SW1 TP15 RX LOOP VOLTAGE TP14 TX LOOP VOLTAGE TP16 RX AUDIO T Tone P Pulse VR1 DEMOD Audio Level Adjustment VR2 MOD Deviation Adjustment C15 TX Frequency Adjustment BASE MAIN BOARD Component Side BASE MAIN BOARD Conductor Side ...

Page 16: ...enerator as follows output frequency 903 8 MHz output level 50 dBm FM deviation 25 kHz MOD tone frequency 1 kHz 4 Adjust R113 on the HAND MAIN board for 90 5 mV read ing on the audio generator 4 MOD Deviation Adjustment 1 Connect the RF generator to TP ANT on the HAND RF board 2 Connect the audio generator to TP MIC IN on the HAND MAIN board 3 Set the audio generator as follows output level 35 mV ...

Page 17: ...8 LED DRIVE Q12 SPEAKER AMP U6 OSC Q4 RO1 18 L12 10 7MHz 26 RSSI 10 FIN2 CP2 CP1 16 14 TX SYSTEM PLL CIRCUIT REFERENCE DIVIDER CONTROL CIRCUIT FIN1 DIN CLK DOUT CS STB CK DATA EEP PLL DATA EEP CS EEP DI EEP PLL CLK PLL EN XIN X1 4MHz 1 3 11 8 6 7 10 OSC2 26 OSC1 27 13 11 12 9 3 2 4 1 F4 10 7MHz PRE NF PREAMP 23 RIN RO1 AMP DEMOD AUDIO LEVEL VR1 MIC AMP 19 MIC NF 10 18 RX DATA 25 TX DATA 24 LED1 IN...

Page 18: ...E 23 19 1 15 J8 DC IN 9V 15 5 4 1 2 11 12 14 9 10 11 3 4 5 6 B SWITCH FOR LEDS Q10 ANSWER ON OFF MAIL BOX 1 05 2 3 LD1 LD2 LD3 LD4 RESET B 3V B 3V A LATCH CLK SHIFT CLK L DATA 6 L CLK QC QB QA QF QG QE QD U10 LED 7 SEGMENTS LED DRIVE U1 7 SEGMENTS LED MESSAGE COUNTER 7SEG D1 L LATCH 4 5 6 62 57 58 SI SCK FSO FSK CS CS 7 24 59 8 SO FSI RESET RESET LED SEL 7SEG D2 X1 3 579545MHz XTAL2 XTAL1 42 41 RO...

Page 19: ...K DATA PLL DATA PLL CLK PLL EN XIN X1 4MHz 1 3 11 8 6 7 12 OSC2 26 OSC1 27 13 11 F5 10 7MHz PRE IN PREAMP 23 ROIN RO1 AMP DEMOD AUDIO LEVEL R113 VOL S19 MIC AMP 19 MIC NF 10 RX DATA 25 TX DATA 24 D5 TALK BATT LOW SYSTEM CONTROLLER U3 PLL U3 MIX OSC LIMITER AMP DET U1 COMPRESSOR EXPANDER NOISE GATE U7 MOD DEVIATION R119 RO2 AMP REGULATOR ERROR AMP MUTE SHUT DOWM COMPARATOR AUXILLARY COMPARATOR DROP...

Page 20: ...tion tolerances Circled numbers refer to waveforms Signal path N RX O TX P BELL Semiconductor Location Ref No Location D1 B 1 D2 B 1 D3 C 2 D5 E 2 Q1 B 2 Q2 C 4 Q3 E 3 Q4 F 3 Q8 B 2 Q9 C 3 U1 D 2 U10 C 1 Note on Printed Wiring Board X parts extracted from the component side Y parts extracted from the conductor side x parts mounted on the conductor side W indicates side identified with part number ...

Page 21: ...SPP A941 25 26 5 6 SCHEMATIC DIAGRAM BASE RF Board See page 43 for IC Block Diagrams Page 30 ...

Page 22: ...121 R132 C150 R122 R141 C24 R149 R142 C1 R143 C2 R7 R69 R32 R20 R104 R51 R97 D4 K A K Q15 B C E Q12 B C E Q16 E C B Q4 E C B Q5 B C E Q1 B C E Q2 Q3 B C E B C E R71 R70 R81 R16 R80 R17 C48 9 16 8 1 C45 R82 14 1 15 U1 28 R21 C51 R38 C10 R105 R27 C9 C8 R39 R67 C6 R72 R95 R85 C38 C39 R91 C41 R60 C28 C26 R89 C40 R90 R86 R93 C7 C30 R68 C29 C31 8 14 U5 7 1 R23 R47 R58 C22 R77 R61 R62 R26 C27 C35 R76 C32...

Page 23: ...SPP A941 29 30 5 8 SCHEMATIC DIAGRAM BASE MAIN Board See page 31 for Waveform See page 43 for IC Block Diagrams Page 26 Page 33 Page 33 Page 36 ...

Page 24: ... C25 R18 R17 R30 R14 R31 R20 C24 R13 R15 E C B Q3 TC10 TC1 TC13 U1 U2 1 24 64 41 1 3 6 4 25 40 80 65 U3 1 18 TC3 R29 R33 R31 R36 C67 C32 C16 C50 C51 C52 C53 C54 C60 C57 C59 C56 C58 R1 C19 C15 C14 C30 C29 C22 R24 C28 R21 C27 R10 R7 C12 C11 R19 C2 TC2 C3 1 22 HD1 C23 C20 C18 R32 C10 C13 R2 C6 C7 1 14 28 15 R28 TC7 TC11 TC14 TC9 TC8 X1 I TAD BOARD SIDE B I TAD BOARD SIDE A Q1 B C E Q2 B C E 05 D2 K A...

Page 25: ...SPP A941 33 34 5 10 SCHEMATIC DIAGRAM BASE I TAD Board See page 31 for Waveform Page 30 Page 30 ...

Page 26: ...e 28 Page 30 BLK RED SP1 LD2 KP10 LED2 LED1 KP20 KP11 LD3 LD4 KP12 KP42 KP41 KP30 KP31 LD1 KP2 KP1 U1 MESSAGE COUNTER 1 27 BASE KEY BOARD KP0 REC MEMO ERASE TIME SET SLOW REPEAT CHARGE IN USE KP10 LD2 MAIL BOX 1 KP11 LD3 2 KP12 LD4 3 SELECT KP40 MENU VOLUME KP2 LD1 ANSWER ON OFF 1 8 16 9 D 1 676 810 11 KP22 QUICK SKIP KP16 HANDSET LOCATOR BASE MAIN BOARD J3 05 A B C D E F G H I J 1 2 3 4 5 6 ...

Page 27: ...R105 R23 R97 R143 R106 R83 R89 C118 R98 R99 R84 R82 R81 R122 R121 R94 C121 R133 C3 C97 C103 C95 R107 C101 C125 R91 R96 R74 R124 R130 R129 R77 R120 R66 C77 R132 R14 C36 C11 C38 C35 C17 R7 C64 C65 R9 R8 R39 C69 C66 C67 R38 C72 R40 C71 C15 C4 C41 C22 R15 R13 R16 R11 C19 C74 C78 R52 R50 C79 C82 R68 R61 C83 C58 C51 C54 C55 R57 R29 C57 C13 C12 C3 R35 R34 R2 R27 C5 R67 R47 C76 C89 R48 10 1 SHIELD CASE L1...

Page 28: ...SPP A941 39 40 5 14 SCHEMATIC DIAGRAM HAND RF Board See page 43 for IC Block Diagrams Page 42 ...

Page 29: ...SPP A941 41 42 5 15 SCHEMATIC DIAGRAM HAND MAIN Board See page 31 for Waveform See page 44 for IC Block Diagrams Page 40 ...

Page 30: ...D MAIN Board 2 1 E RECT PRE OUT PRE NF VCC VREF THROUG RO2 RIN EXP OUT RO1 COMP MUTE EXP MUTE 4 FIL1 OUT 3 FIL2 IN FIL2 OUT 5 9 8 7 6 IN2 C RECT C NF FIL1 IN COMP OUT 10 11 12 24 20 21 22 23 19 17 18 15 14 13 16 GND MIC IN MIC OUT MIC NF G VREF VREF VREF SWITCH CONTROL MIC AMP SUM AMP G VREF VREF PRE AMP SUM AMP RO1 AMP COMP MUTE EXP MUTE THROUG THROUGH IN 2 AMP FILTER AMP 1 FILTER AMP 2 VREF RO2 ...

Page 31: ...O TX system power supply on off control signal output L TX system power on 16 MUTE O RX and TX muting control signal output to the TA31103F U4 L muting on RX mode After receiving premble bits from handset muting it until data sent finished TX mode During sending data to handset muting it 17 OFF HOOK O Hook on off control signal output terminal L off hook H on hook 18 CAR DET I Carrier detect signa...

Page 32: ...ignal input from the microphone MIC1 26 MIC I Analog audio signal input from the microphone MIC1 27 VMIC O Reference voltage output terminal 2V 28 VSSA Ground terminal 29 VBGP O Band gap voltage output terminal 1 2V Not used 30 VMIC O Reference voltage output terminal 2V 31 AD0IN I Line DC input terminal 32 AD1IN I Analog input to the internal A D converter Not used pull up 33 DAOUT O Analog outpu...

Page 33: ...ntrol signal output to the speaker amp U6 57 FSK O Serial data transfer clock signal output to the EEPROM U3 58 FSO O Serial data output to the EEPROM U3 59 FSI I Serial data input from the EEPROM U3 60 GPC O GP clock output terminal Not used open 61 VSS3V2 Ground terminal 62 CS O Chip select signal output to the EEPROM U3 L select H un select 63 RON Not used open 64 WRN Not used open 65 to 74 NC ...

Page 34: ...n 16 RX ENABLE O RX system power supply on off control signal output L RX system power on 17 TALK BATT LED O LED drive signal output of the TALK BATT LOW indicator D5 L LED on 18 LIGHT LED O LED drive signal output of the key back light Not used open 19 MUTE O RX and TX muting control signal output to the TA31103F U7 L muting on RX mode After receiving premble bits from base unit muting it until d...

Page 35: ...olor Cabinet s Color 3 2 2 1 U8 U4 U9 3 4 5 3 not supplied not supplied 5 4 3 2 1 11 16 6 9 7 8 10 14 15 ANT2 Ref No Part No Description Remark Ref No Part No Description Remark 1 3 036 130 01 PANEL HS 2 3 036 122 01 FRONT HS CABINET 3 3 012 611 01 SHEET RECEIVER 4 3 371 005 01 GASKET RECEIVER TWN 5 A 3672 725 A HAND RF BOARD COMPLETE 6 3 036 120 01 KNOB VOL 7 3 036 123 01 CABINET REAR HS 8 3 036 ...

Page 36: ...041 275 01 PACKING SP 61 A 3672 914 A BASE RF BOARD COMPLETE 62 4 356 741 11 SCREW TAPPING BIND 2X6 63 A 3672 915 A BASE MAIN BOARD COMPLETE 64 A 3672 917 A BASE I TAD BOARD COMPLETE 65 3 023 846 01 KNOB TONE PULSE 66 3 042 407 01 SPRING CHARGE 67 3 042 428 01 CUSHION MIC ANT1 1 501 999 21 ANTENNA SP1 1 544 035 11 SPEAKER 5cm MIC1 1 542 260 31 MICROPHONE ELECTRET CONDENSER MIC 57 56 55 58 54 53 52...

Page 37: ... TRANSISTOR Q1 8 729 026 06 TRANSISTOR MMBT3904LT1 Q2 8 729 029 14 TRANSISTOR DTC144EUA T106 Q3 8 729 026 06 TRANSISTOR MMBT3904LT1 RESISTOR R1 1 216 821 11 METAL CHIP 1K 5 1 16W R2 1 216 833 11 METAL CHIP 10K 5 1 16W R7 1 216 809 11 METAL CHIP 100 5 1 16W R8 1 216 821 11 METAL CHIP 1K 5 1 16W R9 1 216 833 11 METAL CHIP 10K 5 1 16W R10 1 216 864 11 METAL CHIP 0 5 1 16W R13 1 216 833 11 METAL CHIP ...

Page 38: ...2 966 11 CERAMIC CHIP 0 0022uF 10 50V C27 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C28 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C29 1 165 128 11 CERAMIC CHIP 0 22uF 16V C30 1 162 923 11 CERAMIC CHIP 47PF 5 50V C31 1 164 230 11 CERAMIC CHIP 220PF 5 50V C32 1 162 921 11 CERAMIC CHIP 33PF 5 50V C33 1 164 739 11 CERAMIC CHIP 560PF 5 50V C34 1 162 921 11 CERAMIC CHIP 33PF 5 50V C35 1 164 230 11 CERAM...

Page 39: ...CHIP 56K 1 1 10W R23 1 208 806 11 RES CHIP 10K 1 1 10W R25 1 216 845 11 METAL CHIP 100K 5 1 16W R26 1 216 833 11 METAL CHIP 10K 5 1 16W R27 1 216 845 11 METAL CHIP 100K 5 1 16W R28 1 216 837 11 METAL CHIP 22K 5 1 16W R29 1 216 845 11 METAL CHIP 100K 5 1 16W R30 1 216 841 11 METAL CHIP 47K 5 1 16W R31 1 216 821 11 METAL CHIP 1K 5 1 16W R32 1 216 839 11 METAL CHIP 33K 5 1 16W R33 1 216 837 11 METAL ...

Page 40: ...6 PHOTO COUPLER TLP627 U8 8 719 018 89 PHOTO COUPLER LTV817 C U9 8 759 701 56 IC NJM78M05FA U10 8 759 032 59 IC MC74HC595AF VARIABLE RESISTOR VR1 1 237 517 21 RES ADJ 5K VR2 1 238 193 11 RES ADJ 5K VIBRATOR X1 1 760 096 11 VIBRATOR CRYSTAL 4 194304MHz DIODE Z12 8 719 025 55 DIODE 02CZ27 TE85L Z13 8 719 025 55 DIODE 02CZ27 TE85L A 3672 914 A BASE RF BOARD COMPLETE 4 356 741 11 SCREW TAPPING BIND 2X...

Page 41: ...7W Q3 8 729 230 49 TRANSISTOR 2SC2812 L5L6 TB Q4 8 729 230 49 TRANSISTOR 2SC2812 L5L6 TB Q8 8 729 923 31 TRANSISTOR 2SC4083 T106P Q9 8 729 923 31 TRANSISTOR 2SC4083 T106P RESISTOR R2 1 216 809 11 METAL CHIP 100 5 1 16W R3 1 216 840 11 METAL CHIP 39K 5 1 16W R4 1 216 808 11 METAL CHIP 82 5 1 16W R5 1 216 838 11 METAL CHIP 27K 5 1 16W R6 1 216 798 11 RES CHIP 12 5 1 16W R7 1 216 817 11 METAL CHIP 47...

Page 42: ...4 8 719 067 59 DIODE MAZ9120D0LS0 TX L TRANSISTOR Q1 8 729 230 49 TRANSISTOR 2SC2712 YG Q12 8 729 026 07 TRANSISTOR MMBT3906LT1 Q13 8 729 026 07 TRANSISTOR MMBT3906LT1 Q14 8 729 026 07 TRANSISTOR MMBT3906LT1 Q15 8 729 230 49 TRANSISTOR 2SC2712 YG Q16 8 729 026 07 TRANSISTOR MMBT3906LT1 Q17 8 729 230 49 TRANSISTOR 2SC2712 YG Q18 8 729 026 07 TRANSISTOR MMBT3906LT1 Q19 8 729 026 07 TRANSISTOR MMBT39...

Page 43: ...0V C16 1 162 923 11 CERAMIC CHIP 47PF 5 50V C17 1 162 912 11 CERAMIC CHIP 7PF 0 5PF 50V C19 1 162 923 11 CERAMIC CHIP 47PF 5 50V C20 1 162 923 11 CERAMIC CHIP 47PF 5 50V C21 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C22 1 162 924 11 CERAMIC CHIP 56PF 5 50V C23 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C24 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C25 1 141 374 11 CAP TRIMMER 20PF C26 1 164 217 11 CERAMI...

Page 44: ...TAL CHIP 75 0 5 1 16W R35 1 218 286 11 RES CHIP 91 5 1 16W R37 1 218 653 11 RES CHIP 24 0 5 1 16W R38 1 218 719 11 METAL CHIP 13K 0 5 1 16W R39 1 218 716 11 METAL CHIP 10K 0 5 1 16W R40 1 218 285 11 RES CHIP 75 5 1 16W R41 1 216 814 11 METAL CHIP 270 5 1 16W R45 1 216 833 11 METAL CHIP 10K 5 1 16W R47 1 218 720 11 METAL CHIP 15K 0 5 1 16W R48 1 219 570 11 METAL CHIP 10M 5 1 16W R50 1 218 653 11 RE...

Page 45: ...r une pièce portant le numéro spécifié ACCESSORIES PACKING MATERIALS 0 1 418 832 11 ADAPTOR AC AC T130 1 528 769 11 BATTERY PACK BP T23 1 696 453 21 CORD WITH MODULAR PLUG LINE 22cm 1 696 454 11 CORD WITH MODULAR PLUG LINE 215cm 3 012 379 11 CASE WALL HOOK 3 041 521 11 GUIDE QUICK START US 3 041 521 21 GUIDE QUICK START CND 3 041 522 11 CARD REMOTE CONTROL US 3 041 522 21 CARD REMOTE CONTROL CND 3...

Page 46: ... 60 Sony Corporation Personal Audio Division Company 9 927 600 12 99K0504 1 Printed in Japan C 1999 11 Published by General Engineering Dept SPP A941 ...

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