Sony SPP-A973 - Cordless Telephone With Answering System, Service Manual

Page 1: ...pprox 270 g approx 9 5 oz battery included SPP A973 A974 US Model SPP A973 Canadian Model SPP A974 CORDLESS TELEPHONE MICROFILM Photo SPP A973 Base unit Power source DC 9 V from AC power adaptor AC T128 Battery charging time Approx 24 hours Dimensions Approx 160 63 225 mm w h d antenna excluded approx 6 3 8 2 1 2 8 7 8 inches Antenna Approx 120 mm approx 4 3 4 inches Mass Approx 585 g approx 1 lb ...

Page 2: ...Key Board 17 2 7 I TAD Board 18 3 ELECTRICAL ADJUSTMENTS 3 1 Handset 19 3 2 Base Unit 20 4 DIAGRAMS 4 1 Block Diagram Base Unit Section 21 4 2 Block Diagram Handset Section 23 4 3 Schematic Diagram Base Main Section 1 2 25 4 4 Schematic Diagram Base Main Section 2 2 27 4 5 Printed Wiring Board Base Main Section 29 4 6 Printed Wiring Board I TAD Section 34 4 7 Schematic Diagram I TAD Section 35 4 8...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from SPP A974 s instruction manual ...

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Page 15: ... REAR RF UNIT HS HAND MAIN BOARD BASE UNIT BASE BOTTOM BASE MAIN BOARD RF UNIT BU BASE KEY BOARD I TAD BOARD Note Follow the disassembly procedure in the numerical order given 2 1 CASE REAR 1 BTP 3x12 6 VOL knob HS 7Removal the solders 3 BTP 3x12 9 Removal the solders charge terminals battery terminals 0Removal the solders 2 B 2x8 4 B 2x6 5 B 2x6 antenna ANT1001 8 RF unit HS qa HAND MAIN board ...

Page 16: ...se bottom 4 5 2 BTP 3x12 3 BTP 3x12 1 screws 3x30 0 BASE MAIN board battery terminal BU charge springs 2 BTP 3x12 4 Removal the solders 6 Removal the solders 5 Removal the solders 7 Removal the solders 8 Removal the solders 9 Removal the solders 3 BTP 3x12 ...

Page 17: ... 17 2 5 RF UNIT BU 2 6 BASE KEY BOARD 1 BTP 3x12 2 BTP 3x12 lug 3 B 2x8 4 RF unit BU 1 BTP 3x12 3 speaker holder 4 B 2x6 7 BASE KEY board 5 B 2x6 6 Removal the solders 2 BTP 3x12 ...

Page 18: ... 18 2 7 I TAD BOARD 3 I TAD board BASE KEY board 2 BTP 3x12 1 Removal the solders ...

Page 19: ...ed Otherwise refer to item 4 for Adjustment Procedure 4 Adjustment Procedure Item Adjustment Element Remark 18 4MHz Frequency Error C4016 1 Remove C4017 from the BASE MAIN board 2 Solder an 20PF chip capacitor C4016 1 164 160 11 on the BASE MAIN board in parallel of C4014 3 Connect the frequency counter to the test point J1 Adjust for 0 Hz 1 kHz SECTION 3 ELECTRICAL ADJUSTMENTS 3 Verify Procedure ...

Page 20: ... 50 17 48 8 47 4 55 58 57 62 8 59 6 5 4 24 7 SCL SDA 36 39 LIFMIN2 LIFPOUT 56 LE TI EXIN EXON RSTN LED CONTROL U1 ANT4001 TELESCOPIC ANTENNA SYSTEM CONTROL U4001 RECHARGEABLE BATTERY BP T23 DC 3 6V CHARGE TERMINAL 04 Signal Path TX To Tel Line RX From Tel Line bell J1003 J1004 S4001 DIAL MODE 56 GPIO4 TST0 RF POWER CONTROL Q4001 3 2V 23 25 SPKRP 9 MA5 10 MA6 11 MA7 6 MA2 LED DRIVE Q1 2 4 MA0 5 MA1...

Page 21: ...Q1010 1012 CHARGE DET Q1008 RF POWER CONTROL Q1007 RF POWER CONTROL Q1006 REG U1007 H S103 VOL M L X1001 18 4MHz 83 84 86 90 4 12 5 13 6 14 16 10 17 18 9 8 LCD DB4 LCD DB5 LCD DB6 LCD DB7 LCD E LCD R W LCD RS LCD1001 LCD MODULE 30 I 34 35 I 39 KEY MATRIX S1004 S1022 ROW0 ROW4 COL0 COL4 RINGER OUT Q1009 12 LED DRIVE Q1002 LCD KEY BACK LIGHT U1002 BUZZER U1005 SPEAKER U1003 MIC ANT1001 HELICAL ANTEN...

Page 22: ...s unless otherwise specified C panel designation U B Line Power voltage is dc 9 V and fed with regulated dc power supply from external power voltage jack BASE PHONE Power voltage is dc 12 V and fed with regulated dc power supply from J1008 with 100 Ω in series BASE PHONE Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal HANDSET Voltage is dc with respect to groun...

Page 23: ...4 4 SCHEMATIC DIAGRAM BASE MAIN SECTION 2 2 Refer to page 45 for IC Block Diagrams 27 28 SPP A973 A974 Page 35 Page 26 Page 40 ...

Page 24: ...SECTION SPP A973 A974 29 30 D1001 F 5 D1011 G 5 D1012 H 5 D1015 H 4 D1016 H 4 D4001 C 8 D4002 B 6 D4003 B 6 Q1006 G 6 Q1008 G 6 Q4001 B 6 Q4003 B 6 U1003 G 5 U4001 D 7 U4002 C 7 U4004 B 6 U4005 A 6 Semiconductor Location Ref No Location ...

Page 25: ... 31 32 SPP A973 A974 D1006 G 2 D1007 F 2 D1008 F 2 D1009 F 2 D1010 F 2 Q1001 E 4 Q1007 G 9 U1001 F 4 U1002 F 3 Semiconductor Location Ref No Location Page 34 Page 38 ...

Page 26: ...SPP A973 A974 4 6 PRINTED WIRING BOARD I TAD SECTION 33 34 D1 A 2 D2 A 2 Q1 A 1 Q2 A 2 Q3 A 1 U1 B 2 U2 A 3 U3 B 1 Semiconductor Location Ref No Location SIDE B Page 38 Page 31 ...

Page 27: ...SPP A973 A974 4 7 SCHEMATIC DIAGRAM I TAD SECTION Refer to page 45 for IC Block Diagrams 35 36 Page 27 Page 39 ...

Page 28: ...A973 A974 4 8 PRINTED WIRING BOARD BASE KEY SECTION D1 A 2 D2 A 2 D3 C 2 D4 B 5 D5 B 5 D6 B 6 D7 D 7 D8 D 7 Semiconductor Location Ref No Location Ref No Location D9 D 7 Q1 C 1 Q2 D 1 Q3 C 2 U1 A 1 Page 34 Page 31 ...

Page 29: ... 39 40 SPP A973 A974 4 9 SCHEMATIC DIAGRAM BASE KEY SECTION Refer to page 45 for IC Block Diagrams Page 35 Page 28 ...

Page 30: ...1008 B 4 D1010 B 4 D1016 B 6 D1018 B 6 D1020 A 3 D1023 A 1 D1024 B 1 D1025 B 1 D1026 B 2 D1027 A 2 D1028 B 2 D1030 B 6 D1031 A 7 D1032 C 2 D1033 C 1 Q1002 B 3 Q1004 A 6 Q1006 B 1 Q1007 B 1 Q1008 A 7 Q1009 B 1 Q1010 A 6 Q1012 A 7 U1001 B 4 U1006 A 2 U1007 C 1 Semiconductor Location Ref No Location 41 42 SIDE B ...

Page 31: ...SPP A973 A974 4 11 SCHEMATIC DIAGRAM HAND MAIN SECTION Refer to page 45 for IC Block Diagrams 43 44 ...

Page 32: ...D AUX RAM WATCHDOG P1 ANALOG VOLTAGE REFERENCE AND SUPPLY GENERAL PURPOSE A D AND DA POR AND WAKE UP CODEC2 ANALOG CODEC2 DIGITAL CODEC1 DIGITAL CODEC1 ANALOG MICROCONTROLLER 80C51 DCI DMI DSP PLUS ROM RAM RSTANA IDLE WAKE UP DSPCLK TICB EVENTS µC CLK 15 16 17 18 19 20 21 VSS3V 22 SPKRP 23 SPKRM 24 I 2 C 31 32 34 ADDIN ADTN 35 LIFPIN 36 LIFMIN2 37 LIFMIN1 40 VSSPLL 38 LIFMOUT 39 LIFPOUT DTMF ADOUT...

Page 33: ...973 16 A 3672 899 A HAND MAIN BOARD COMPLETE A974 17 3 038 084 01 DIFFUSER HS 18 3 041 536 01 SHEET 19 3 041 547 01 COVER HS HOOK ANT1001 1 754 103 11 ANTENNA J1001 3 041 208 01 TERMINAL CHARGE J1002 3 041 208 01 TERMINAL CHARGE J1003 3 041 210 01 TERMINAL BATTERY J1004 3 041 210 01 TERMINAL BATTERY LCD1001 1 803 832 11 LCD MODULE U1003 1 542 260 31 MICROPHONE ELECTRET CONDENSER U1005 1 505 593 11...

Page 34: ...ID BU BATTERY CASE 63 3 038 086 01 BASE TOP A973 63 3 038 086 11 BASE TOP A974 64 3 038 092 01 BASE LENS 65 3 041 528 01 KNOB BU VOLUME 66 3 038 090 01 HOOK 67 3 041 275 01 PACKING SPEAKER 68 3 041 274 01 HOLDER SPEAKER 69 A 3672 871 A RF UNIT BU 70 4 356 741 21 SCREW TAPPING BIND 2X8 71 3 038 087 01 BASE BOTTOM 72 3 041 534 01 FOOT RUBBER 73 3 044 147 01 SPONGE MICROPHONE 74 3 044 146 01 SCREW 3X...

Page 35: ... 4W R6 1 218 477 11 RES CHIP 220 5 1 4W R7 1 218 477 11 RES CHIP 220 5 1 4W R8 1 218 477 11 RES CHIP 220 5 1 4W R9 1 218 477 11 RES CHIP 220 5 1 4W R10 1 218 477 11 RES CHIP 220 5 1 4W R11 1 220 264 11 RES CHIP 1K 5 1 4W R12 1 220 264 11 RES CHIP 1K 5 1 4W R13 1 220 264 11 RES CHIP 1K 5 1 4W IC U1 8 759 268 33 IC SN74HC595ADBR A 3672 872 A BASE MAIN BOARD COMPLETE CAPACITOR C1001 1 104 665 11 ELEC...

Page 36: ...8 117 00 INDUCTOR 10uH L1005 1 408 117 00 INDUCTOR 10uH L1006 1 408 117 00 INDUCTOR 10uH TRANSISTOR Q1001 8 729 026 07 TRANSISTOR MMBT3906LT1 Q1006 8 729 026 06 TRANSISTOR MMBT3904LT1 Q1007 8 729 820 84 TRANSISTOR 2SC2812 L5L6 TB Q1008 8 729 026 06 TRANSISTOR MMBT3904LT1 Q4001 8 729 026 07 TRANSISTOR MMBT3906LT1 Q4003 8 729 033 62 TRANSISTOR MMBT2907ALT1 RESISTOR R1001 1 216 057 00 METAL CHIP 2 2K...

Page 37: ... 250mA 250V VIBRATOR X4001 1 577 269 11 VIBRATOR CRYSTAL 18 4MHz A 3672 870 A HAND MAIN BOARD COMPLETE A973 A 3672 899 A HAND MAIN BOARD COMPLETE A974 CAPACITOR C1001 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C1002 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C1003 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C1004 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C1005 1 164 346 11 CERAMIC CHIP 1uF 16V C1006 1 162 970 ...

Page 38: ...11 METAL CHIP 62K 0 50 1 16W R1027 1 216 833 11 METAL CHIP 10K 5 1 16W R1031 1 218 735 11 METAL CHIP 62K 0 50 1 16W R1032 1 220 372 11 RES CHIP 200K 5 1 16W R1033 1 216 845 11 METAL CHIP 100K 5 1 16W R1035 1 216 841 11 METAL CHIP 47K 5 1 16W R1036 1 218 292 11 RES CHIP 20K 5 1 16W R1037 1 216 821 11 METAL CHIP 1K 5 1 16W R1039 1 216 846 11 METAL CHIP 120K 5 1 16W R1041 1 216 861 11 METAL CHIP 2 2M...

Page 39: ...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 1 216 845 11 METAL CHIP 100K 5 1 16W R13 1 216 833 11 METAL CHIP 10K 5 1 16W R14 1 216 828 11 METAL CHIP 3 9K 5 1 16W R15 1 216 821 11 METAL CHIP 1K 5 1 16W R17 1 216 821 11 METAL CHIP 1K 5 1 16W R18 1 216 821 11...

Page 40: ...ortant le numéro spécifié Ref No Part No Description Remark ACCESSORIES PACKING MATERIALS 0 1 418 739 11 ADAPTOR AC AC T128 1 528 769 11 BATTERY PACK BP T23 1 696 453 21 CORD WITH MODULAR PLUG LINE 215cm 1 696 454 11 CORD WITH MODULAR PLUG LINE 15cm 3 012 379 11 CASE WALL HOOK 3 867 315 11 MANUAL INSTRUCTION ENGLISH SPANISH A973 3 867 315 21 MANUAL INSTRUCTION ENGLISH FRENCH A974 3 867 351 11 GUID...