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Summary of Contents for Daewoo ST263 DVST7L3
- Page 1 S/M No. : VTG7J3DET0 Service Manual Video Cassette Recorder ALL T-MECHA (Hi-Fi/MONO) Model: (PAL/SECAM MODELS) ST263 (DVST7L3) DVST7L3 DAEWOO ELECTRONICS CO., LTD. http : //svc.dwe.co.kr Apr. 2002...
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Page 2: Safety And Precautions
SAFETY & PRECAUTIONS SAFETY CHECK AFTER SERVING Examine the area surrounding the repaired location for damage or deterioration. Observe that screw, parts and wires have been returned to original positions. Afterwards, perform the following tests and conform the specified values in order to verify compliance whit safety standards. - Page 3 SAFETY & PRECAUTIONS 4. Leakage current test Confirm specified or lower leakage current between B(earth ground, power cord plug prongs) and externally exposed accessi- ble parts (RF terminals, antenna terminals, video and audio input output terminals, microphone jacks, earphone jacks, etc.) Measuring method:(Power ON) Insert load Z between B(earth ground, power cord plug prongs) and exposed accessible parts.
- Page 4 DVST7L3 FRONT VIEW...
- Page 5 HI-FI 2 SCART TYPE REAR VIEW...
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Page 6: Electrical Adjustment
ELECTRICAL ADJUSTMENT 1. PLAYBACK PHASE ADJUSTMENT TEST TEST INPUT ITEM MODE CHECK POINT POINT EQUIPMENT TAPE SIGNAL 6.5H PIN 4 & PIN 5 PLAY [REC] BUTTON OSCILLOSCOPE DP-2 NO SIGNAL ADJUSTMENT OF P502 ADJUSTMENT PARTS MEASURING POINT PCB : MAIN - TOP VIEW P502 OSCILLOSCOPE BLOC... -
Page 7: Specifications
SPECIFICATIONS GENERAL Power Requirement AC 230V, 50Hz Power Consumption Max. 17W (in REC mode) Temperature 5×C ~ 35×C (Operating) -20×C ~ 60×C Operating position Horizontal only Dimensions (W x H x D) 360 x 90 x 288 (mm) Weight Approx. 3.85 Kg Format VHS standard Tape Width... -
Page 8: Circuit Information
CIRCUIT INFORMATION 1. INTERCONNECT WIRING DIAGRAM... -
Page 9: Power Circuit Diagram
CIRCUIT INFORMATION 2. POWER CIRCUIT DIAGRAM... - Page 10 CIRCUIT INFORMATION POWER MODE POWER MODE LOC. PLAY REC. LOC. PLAY REC. IC802 2.46 2.46 2.46 Q801 4.81 4.83 4.82 -0.12 -0.11 -0.72 0.01 IC801 5.88 5.89 5.89 Q802 /803 4.81 4.83 4.83 0.25 0.26 0.17 0.25 0.25 0.25 0.12 0.11 0.17 Q821...
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Page 11: Power Block Diagram
CIRCUIT INFORMATION 3. POWER BLOCK DIAGRAM... -
Page 12: Syscon Circuit Diagram
CIRCUIT INFORMATION 4. SYSCON CIRCUIT DIAGRAM... - Page 13 CIRCUIT INFORMATION SYSCON MODE SYSCON MODE LOC. PLAY REC. LOC. PLAY REC. IC501 0.01 0.03 2.63 2.61 2.61 4.64 4.97 4.96 5.18 5.18 5.18 0.01 5.18 0.04 0.01 0.12 4.74 5.04 2.28 1.13 0.01 0.01 4.73 0.01 0.12 1.85 0.14 5.17 5.17 5.15...
- Page 14 CIRCUIT INFORMATION 5. SERVO & SYSCON BLOCK DIAGRAM...
- Page 15 CIRCUIT INFORMATION 6. AV & SECAM COLOR CIRCUIT DIAGRAM...
- Page 16 CIRCUIT INFORMATION MODE MODE MODE LOC. PLAY REC. LOC. PLAY REC. LOC. PLAY REC. IC301 5.09 0.78 1.19 1.02 1.21 Q201 0.02 0.02 0.02 0.03 0.03 0.84 0.02 0.02 0.02 0.03 0.03 0.84 2.29 2.28 2.55 0.85 1.92 0.86 5.11 0.77 0.33 0.17...
- Page 17 CIRCUIT INFORMATION 7-1. VIDEO PLAYBACK PATH FOR PAL 7-2. VIDEO RECORD PATH FOR PAL...
- Page 18 CIRCUIT INFORMATION 8. HIFI & SW CIRCUIT DIAGRAM...
- Page 19 CIRCUIT INFORMATION HIFFI BLOCK DIAGRAM HIFI&SW MODE HIFI&SW MODE LOC. PLAY REC. LOC. PLAY REC. IC251 0.00 0.00 0.00 IC601 5.13 5.14 5.13 3.90 3.90 3.90 5.16 5.16 5.15 3.90 3.90 3.90 5.16 5.16 5.13 0.00 0.00 0.00 5.15 5.15 5.14 0.00 0.00...
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Page 20: Pif Circuit Diagram
CIRCUIT INFORMATION 9. PIF CIRCUIT DIAGRAM... - Page 21 CIRCUIT INFORMATION MODE MODE MODE LOC. PLAY REC. LOC. PLAY REC. LOC. PLAY REC. IC051 5.02 0.00 5.02 IC151 0.02 0.01 0.02 Q001 0.002 0.002 0.002 1.52 0.07 1.52 2.66 2.68 2.64 0.01 0.01 0.012 1.52 0.00 1.52 2.66 2.70 2.66 5.86 5.86...
- Page 22 DISASSEMBLY 1. PACKING ASS’ Y...
- Page 23 DVST7L3 SERIES...
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Page 24: Instrument Disassembly
DISASSEMBLY 3. INSTRUMENT DISASSEMBLY 3-1. SET TOTAL... -
Page 25: Electrical Parts List
ELECTRICAL PARTS LIST Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) “... - Page 26 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK M401 97P0478200 CASE SHI PREAMP ET T0.4 C271 HCBK682KBA C CHIP CERA 50V X7R 6800PF K 1608 M801 97P0974300 PLATE EARTH-P ET T=0.4 C277 HCBK682KBA C CHIP CERA 50V X7R 6800PF K 1608 P201 97P62Y1318...
- Page 27 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK C627 HCBK103KBA C CHIP CERA 50V X7R 0.01MF K 1608 R271 HRFS470JBA R CHIP 1/16 47 OHM J 1608 C628 HCFH223ZBA C CHIP CERA 25V Y5V 0.022MF Z 1608 R302 HRFS822JBA R CHIP 1/16 8.2K OHM J 1608...
- Page 28 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK RJ503 HRF8000-EA R CHIP 1/8 0 OHM 3216 C279 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP RJ504 HRF8000-EA R CHIP 1/8 0 OHM 3216 C283 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP RJ541 HRFS000-BA...
- Page 29 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK C826 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP SW502 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO C828 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP SW503 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO C829...
- Page 30 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK D506 DZN4148--- DIODE 1N4148 AUTO 52MM JP085 85801060TA WIRE COPPER 0.6X52MM TAPING D509 DZN4148--- DIODE 1N4148 AUTO 52MM JP088 85801060TA WIRE COPPER 0.6X52MM TAPING D510 DZN4148--- DIODE 1N4148 AUTO 52MM JP102 85801060TA...
- Page 31 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK R153 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM J R329 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R154 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R330 RD-AZ223J- R CARBON FILM...
- Page 32 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK R618 RD-AZ470J- R CARBON FILM 1/6 47 OHM J JP043 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP044 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R619 RD-AZ470J- R CARBON FILM 1/6 47 OHM J JP052...
- Page 33 ELECTRICAL PARTS LIST LOC. PART-CODE PART-NAME PART-DESC. REMARK LOC. PART-CODE PART-NAME PART-DESC. REMARK JP133 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP192 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP135 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP193 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING JP138 85801065GY...
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