Question about Mitsubishi VS-4543 45" TV

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NO PICTURE

WHEN I TURN TV ON THERE IS NO PICTURE. I GET SOUND. THERE ARE THREE LINES THAT GO ACROSS SCREEN. ONE IS RED ONE ,IS BLUE ,AND THE OTHER ONE IS GREEN. BEFORE THIS STARTED HAPPENING THE TV WOULD GO OFF FOR A COUPLE OF MINUTES THEN IT WOULD TURN BACK ON. WHAT IS THE SOLUTION?

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  • leife56 Aug 22, 2008

    One year ago I had a Tv repairman come out and replace a vertical chip which solved the problem on my 51 inch apex tv. Recently, I've had him out again and he has come to the conclusion that both of the convergence ic chips that he is calling amplifiers need to be replaced. Is this possible? How much do these chips cost? And, is there a code that you can enter into your apex tv remote to make certain adjustments? Thank You

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GO TO THE CONVERGENCE MENU (MENU 2 3 5 9) AND CHECK THE ADJUSTMENT SETTINGS FOR CONVERGENCE. IF ALL ITEMS ARE SET AT "127". THE EEPROM SETTINGS ARE AT DEFAULT. CLEAR THE CONVERGENCE MENU AND ACCESS THE OPTION MENU (MENU 1 3 7 0) USE THE ADJUST BUTTON TO SELECT E2RESET AND PRESS QV. THIS SHOULD INSURE THE EEPROM IS CLEAR. AT THIS TIME ALL ADJUSTMENTS, CONVERGENCE GEOMETRY AND CONVERGENCE SHOULD BE DONE. IF MISSING, WEAK OR DISTORTED, CHECK PULSE AT SOURCE PIN 7 OF IC401 (PUMP UP OUTPUT) ON THE SIGNAL PCB, IF THE PULSE IS NOT CORRECT AT PIN 7 CHECK C402 100 UFD 50V AND IC401 PART # 270P064020. 3. CHECK FOR -5 VDC TO THE CONVERGENCE PCB AT "GM" CONNECTOR PIN 10, IF LOW, MISSING OR NOISY, CHECK C936 (1000 UFD 16 V) AND C935 (100 UFD 16 V) IN THE -8 VOLT SUPPLY CIRCUIT ON THE MAIN PCB. 4. CHECK C924 (1000 UFD 36V 105 C) AND C925 (100 UFD 50 V) IN THE -24 VOLT SUPPLY CIRCUIT ON THE MAIN PCB.

Posted on Sep 18, 2007

  • Lashawn Robinson Sep 18, 2007

    My Bad do this first, I read too fast and have many more to go. CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART # 266P932010, ON THE SIGNAL PCB. 2. MAY BE INTERMITTENT. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. Then if still a problem do the other I wrote before. Sorry for mix up.

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Your tv most likely has a bad vertical chip or cold solder on this chip. Another thing is that the connections on the vertical yoke connectors are broken and need to be resoldered....John

Posted on Sep 18, 2007

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No picture


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Sony 65 inch screen tv


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Please help


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thanks doctor video


note sometimes you could adjust screen voltage located near the front grill black box . becareful high voltage ony a pro should do.

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