Daewoo DV-K10DY-QB Service Manual

Daewoo DV-K10DY-QB Service Manual Manual pdf 6 page image

2-1. SERVO CIRCUIT ADJUSTMENT METHOD1. VIDEO HEAD SWITCHING POSITION• Connection Method• Adjustment Procedure1) Play back the test tape.(Color Bar DP-2)2) Set the oscilloscope in the chop mode connect the CH1 to SW pulse(PT01 PIN#), the CH2 to VIDEO OUT(R307 ) withCH1 triggering.3) Adjust R592 for the positive trigger unitill 6.5±0.5H cycles before the vertical SYNC pulse.SECTION 2. ELECTRICAL ADJUSTMENTAdjustment Parts Checking Point Measuring Equipment Mode Test TapeR307 DP-2R592 PT01 PIN ¤Ø Oscilloscope PLAYModulatorCH-1OSCILLOSCOPECH-2DECKPT01 PIN3R592SMPSPOWERR307CH1CH21H 0.5H6.5H ± 0.5HVERTICAL SYNCSW 30Hz(PT01 PIN)(R307)TRIGGER33