Daewoo Electronics DVST7D3/4D3/2D3 User's Manual
Contents
1. 25 INSIRUMENT DISASSEMBLY gm reemer Eat 29 ELEC TRK AL PARIS LI uu uyususasisawas unuasaniaupupanqasiiawswasssaasuaqkanpapusuwyassayasaskasnanpasaayasiqas 30 MAIN AS e 30 SAFETY amp 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 Insulation resistance test Confirm the specified insulation resistance between power cord plug prong and externally exposed parts of the set RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc isgreater than values given in table 1 below Dielectric strengthen test Confirm specified dielectric strengthen between power cord plug prongs and exposed accessible parts of the set Bana RF terminals antenna terminals video and audio input output A 7 terminals microphone jack ear phone jacks etc is greater than values given table 1 Chassis C Clearance distance When replacing primary circuit component confirm specified clearance distance d d between soldered terminals2. EXTERNAL VIEWS 1 FRONT VIEWS FUNCTION DVST7C3 FRONT VIEW DVST7E3 FRONT VIEW DVST7L3 FRONT VIEW DVST7M3 FRONT VIEW DVST7J 3FRONT VIEW EXTERNALVIEW DVST7D3 FRONT VIEW DVST7B3 FRONT VIEW DVST8T3 FRONT VIEW DVST8W3 FRONT VIEW POWER STOP EJECT RECORD FRONT VIDEO AUDIO INPUT JACK REWIND REVIEW FAST FORWARD CUE PLAY BACK CHANNEL UP DOWN
3. S M No VTG7J3DETO Service Manual Video Cassette Recorder ALL T MECHA Hi Fi MONO Model PAL SECAM MODELS DVST7C3 4C3 2C3 Series DVST7E3 4E3 2E3 Series DVST7M3 4M3 2M3 Series DVST7J3 4J3 2J3 Series DVST7D3 4D3 2D3 Series DVST7T3 4T3 2T3 Series DVST7W3 4W3 2W3 Series DVST7L3 4L3 2L3 Series F2TAA2 puni DAEWOO ELECTRONICS CO LTD http svc dwe co kr Apr 2002 TABLE OF CONTENTS SAFETY amp PREC 65 4 4 2 EXTERNAL VIEWS TR 4 FRONTVIEVWS FUNCTION nen SO M 4 REAR VENE FUNCTION 6 ELEC TRIC AL ADJ USTIMENT U nnne nnn 7 SPECIFCAIION05 i AR 8 CIRCUITINFORMATDON U nnn 9 INTERCONNECT WIRING DIAGRAM p AREA ipa PEERS King 9 POWER CIRC UT DING RA Mi P 10 POVER BLOCK DIJA G AN 12 SYSCON CIRCUTDIAGRAM 13 SERVO amp SYSCON BLOCK DDIAGRAM 15 AN amp SECAM COLOR CIRCUTDIAGRAM n tenente tete ntc 16 VIDEO PLAYBACK RECORD PATH FOR 18 HIFI amp SW CIRCUIT DIAGRAM 19 PU eater RR ERA 21 COMPONENTS LOCATION GUIDE ON PCB VIEVW 23 23 DISASSEMBLY 24 PAC KING umu 24 FRONTPANELASSEMBIY
4. and between terminals and surrounding metallic parts See table below Rating for selected areas Insulation Dielectric Clearance 100V gt 1MQ 500V DC IkV AC 1min 110 to 130V USA amp Canada EN 900V AC 1min Europe gt 6 d Australia gt 10MQ 500V DC 4KV 1min gt 8 d Latin America a Power cord Class model only NOTE This table is unofficial and for reference only Be sure to confirm the precise values for your particular country and locality SAFETY amp PRECAUTIONS 4 Leakage current test Confirm specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessi 222 AE ble parts RF terminals antenna terminals video and audio input thigh hs output terminals microphone jacks earphone jacks etc m Measuring method Power ON Insert load Z between B earth ower cord plug prona ground power cord plug prongs and exposed accessible parts Use voltmeter to measure across both terminals of load Z See figure2 and following table Leakage current ratings for selected are as Ti here 110 to 130V Europe 200 to 240V Australia ik 0 7mA peak 50kQ i lt 1mAdc Other terminals NOTE This table is unofficial and for reference only Be sure to confirm the precise values for your particular country and locality
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