WATSON VR-3780 Service Manual Download Page 1 | Manualshive

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WATSON VR-3780 Service Manual Download Page 1

SERVICE MANUAL

WATSON VR-3780

MODEL

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Summary of Contents for VR-3780

Page 1: ...SERVICE MANUAL WATSON VR 3780 MODEL...

Page 2: ...CIRCUIT DIAGRAM 10 POWER BLOCK DIAGRAM 12 SYSCON CIRCUIT DIAGRAM 13 SERVO SYSCON BLOCK DIAGRAM 15 A V SECAM COLOR CIRCUIT DIAGRAM 16 VIDEO PLAYBACK RECORD PATH FOR PAL 18 HIFI SW CIRCUIT DIAGRAM 19 PI...

Page 3: ...ielectric strengthen between power cord plug prongs and exposed accessible parts of the set RF terminals antenna terminals video and audio input output terminals microphone jack ear phone jacks etc is...

Page 4: ...ts Use on AC voltmeter to measure across both terminals of load Z See figure2 and following table Leakage current ratings for selected are as AC Line Voltage Region Load Z Leakage Cur rent i Clearance...

Page 5: ...4 1 FRONT VIEWS FUNCTION DVST7C3 FRONT VIEW DVST7E3 FRONT VIEW DVST7L3 FRONT VIEW DVST7M3 FRONT VIEW EXTERNAL VIEWS...

Page 6: ...FRONT VIEW DVST7D3 FRONT VIEW DVST7B3 FRONT VIEW DVST8T3 FRONT VIEW DVST8W3 FRONT VIEW POWER REWIND REVIEW STOP EJECT FAST FORWARD CUE RECORD PLAY BACK FRONT VIDEO AUDIO INPUT JACK CHANNEL UP DOWN EXT...

Page 7: ...6 EXTERNAL VIEWS 2 REAR VIEWS FUNCTION MONO 1 SCART TYPE REAR VIEW MONO 2 SCART TYPE REAR VIEW HI FI 2 SCART TYPE REAR VIEW MONO RCA TYPE REAR VIEW HI FI RCA TYPE REAR VIEW...

Page 8: ...Insert PATH JIG and press REC button on the remote control 5 Check the position of the V sync from the rising edge of the SW pulse Standard 6 5H 0 5H ITEM MODE ADJUSTMENT POINT CHECK POINT TEST EQUIP...

Page 9: ...r with NETTETE IMAGE control at cen ter position 240 lines with NETTETE IMAGE control at center position AUDIO Recording system Input Output Frequency Range Signal to Noise Ratio Audio Distortion Long...

Page 10: ...9 CIRCUIT INFORMATION 1 INTERCONNECT WIRING DIAGRAM...

Page 11: ...10 CIRCUIT INFORMATION 2 POWER CIRCUIT DIAGRAM...

Page 12: ...72 C 323 323 323 Q802 E 0 0 0 B 0 25 0 26 0 17 C 0 12 0 11 0 17 Q821 E 12 58 12 6 12 6 B 13 2 13 2 13 2 C 15 6 15 36 15 4 Q822 E 5 2 5 19 5 2 B 5 89 5 89 5 89 C 5 97 5 97 5 96 Q825 E 0 0 0 B C 5 89 5...

Page 13: ...12 CIRCUIT INFORMATION 3 POWER BLOCK DIAGRAM...

Page 14: ...13 CIRCUIT INFORMATION 4 SYSCON CIRCUIT DIAGRAM...

Page 15: ...8 4 84 61 4 96 4 8 4 91 SYSCON MODE LOC PIN EE PLAY REC 62 0 01 0 03 0 63 64 5 18 0 5 18 65 5 18 0 01 5 18 66 0 04 0 01 0 12 67 0 5 2 0 68 0 0 01 0 69 0 0 0 12 70 5 17 5 17 5 15 71 5 04 5 01 5 01 72 5...

Page 16: ...15 CIRCUIT INFORMATION 5 SERVO SYSCON BLOCK DIAGRAM...

Page 17: ...16 CIRCUIT INFORMATION 6 AV SECAM COLOR CIRCUIT DIAGRAM...

Page 18: ...0 74 0 73 95 1 94 0 74 0 73 96 1 95 0 74 0 73 97 0 0 02 0 02 98 2 29 2 29 2 43 99 2 29 2 29 2 43 100 2 29 2 29 2 56 A V MODE LOC PIN EE PLAY REC Q201 E 0 02 0 02 0 02 B 0 03 0 03 0 84 C 5 11 0 1 0 77...

Page 19: ...18 CIRCUIT INFORMATION 7 1 VIDEO PLAYBACK PATH FOR PAL 7 2 VIDEO RECORD PATH FOR PAL...

Page 20: ...19 CIRCUIT INFORMATION 8 HIFI SW CIRCUIT DIAGRAM...

Page 21: ...8 39 0 00 0 00 0 00 40 5 18 0 00 5 10 41 0 94 5 20 0 94 42 4 75 0 94 4 74 43 4 86 4 81 4 81 44 1 98 1 97 1 97 HIFI SW MODE LOC PIN EE PLAY REC IC601 1 5 13 5 14 5 13 2 5 16 5 16 5 15 3 5 16 5 16 5 13...

Page 22: ...21 CIRCUIT INFORMATION 9 PIF CIRCUIT DIAGRAM...

Page 23: ...0 38 0 00 0 00 0 00 39 0 00 0 00 0 00 40 0 00 0 00 0 00 41 0 00 0 00 0 00 42 2 60 0 00 2 26 43 2 56 0 04 2 56 44 0 00 0 00 0 00 PIF MODE LOC PIN EE PLAY REC IC151 1 0 02 0 01 0 02 2 2 66 2 68 2 64 3 2...

Page 24: ...23 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW PCB MAIN...

Page 25: ...24 DISASSEMBLY 1 PACKING ASS Y...

Page 26: ...25 DISASSEMBLY 2 FRONT PANEL ASSEMBLY DVST7J3 SERIES DVST7C3 SERIES...

Page 27: ...26 DISASSEMBLY DVST7D3 SERIES DVST7L3 SERIES...

Page 28: ...27 DISASSEMBLY DVST7B3 SERIES DVST7E3 SERIES...

Page 29: ...28 DISASSEMBLY DVST7M3 SERIES...

Page 30: ...29 DISASSEMBLY 3 INSTRUMENT DISASSEMBLY 3 1 SET TOTAL...

Page 31: ...D7 T4 5 A2200 97SA318050 LC BRKT AS T5 MECHA B2040 97P885X146 CONN AS A C HEAD 6P SHIELD A2201 7274300611 SCREW TAPPTITE TT3 RND 3X6 MFZN A2400 97SA317310 IDLER PLATE TOT AS T2 MECHA A2401 97S3108200...

Page 32: ...T CODE PART NAME PART DESC REMARK C271 HCBK682KBA C CHIP CERA 50V X7R 6800PF K 1608 C277 HCBK682KBA C CHIP CERA 50V X7R 6800PF K 1608 C281 HCFH104ZBA C CHIP CERA 25V Y5V 0 1MF Z 1608 C282 HCBK122KBA C...

Page 33: ...4K OHM J 1608 R266 HRFS333JBA R CHIP 1 16 33K OHM J 1608 R270 HRFS333JBA R CHIP 1 16 33K OHM J 1608 LOC PART CODE PART NAME PART DESC REMARK R271 HRFS470JBA R CHIP 1 16 47 OHM J 1608 R302 HRFS822JBA R...

Page 34: ...PART NAME PART DESC REMARK C279 CEXF1C470A C ELECTRO 16V RSM 47MF 5X7 TP C283 CEXF1C470A C ELECTRO 16V RSM 47MF 5X7 TP C291 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C292 CEXF1C100A C ELECTRO 16V RSM 10M...

Page 35: ...THVV952GBA 9 5M AUTO SW503 5S50101Z97 SW TACT THVV952GBA 9 5M AUTO SW504 5S50101Z97 SW TACT THVV952GBA 9 5M AUTO SW505 5S50101Z97 SW TACT THVV952GBA 9 5M AUTO SW506 5S50101Z97 SW TACT THVV952GBA 9 5M...

Page 36: ...60TA WIRE COPPER 0 6X52MM TAPING JP102 85801060TA WIRE COPPER 0 6X52MM TAPING JP103 85801060TA WIRE COPPER 0 6X52MM TAPING JP104 85801060TA WIRE COPPER 0 6X52MM TAPING JP107 85801060TA WIRE COPPER 0 6...

Page 37: ...2K OHM J R326 RD AZ472J R CARBON FILM 1 6 4 7K OHM J LOC PART CODE PART NAME PART DESC REMARK R329 RD AZ102J R CARBON FILM 1 6 1K OHM J R330 RD AZ223J R CARBON FILM 1 6 22K OHM J R331 RD AZ103J R CAR...

Page 38: ...801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP044 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP052 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP055 85801065GY WIRE COPPER AWG22 1 0 65 TIN...

Page 39: ...G22 1 0 65 TIN COATING JP191 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING LOC PART CODE PART NAME PART DESC REMARK JP192 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP193 85801065GY WIRE COPPER...

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