Question about Mitsubishi VS-5043 50" Rear Projection Television
Tv was turned off night before. turned back on. blue screen only,showing antena-A.click input goes to antena B it doesn't go to audio or vodeo so you acn't see the chanels.if you go to menu you can see the tv on the small screen it seems like the video and audio were erased.
CHECK BASE BIAS VOLTAGE OF Q217, FOR 0 VDC (BIASED OFF) IF .7 VDC (BIASED ON) CHECK C268 (22 UFD 50 V) OFF C OF Q215 V-PROTECTOR ON THE SIGNAL PCB. 2. VERTICAL BEAM BLANKING ACTIVE, CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART # 266P932010, ON THE SIGNAL PCB. 3. CHECK PIN 6 OF IC200 FOR 9 VDC IF LOW OR MISSING CHECK IC203 PART # 270P210010 ON THE SIGNAL PCB. 4. MAY BE INTERMITTENT. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. Now these are the technical terms, if you do not have the experience you may need a qualified person to do this. Hope this helps
Posted on Sep 14, 2007
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