Question about Mitsubishi WS-55805 55" Rear Projection Television
I was wondering if any other tech's can help out another tech. I'm working on a Mits ws-55805 customer abaneded the set so i thoght to fix it and resale it. there was no high votage that the first problem i replaced the flyback then the guns wasent lighting up fiexed that problem now that I got high voltage and guns lite thers no sound or pictuer I went throgh antens a and b swich and rca jacks to no change. there is no colent leack on the bord I pulled the bords out and check for bad soder jonts...I get no osd at all nothing please help if you work on thes sets could it be the signel bord?
FIRST CHECK CONNECTOR "DR" FOR PROPER CONNECTION, BETWEEN THE DEFL MINI PCB AND THE MAIN PCB. 2. CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI. 3. CHECK FOR LEAKY IC5A03 PART # 270P704010 ON PCB-DEFL MINI 4. SUSPECT THE HIGH VOLTAGE BLOCK PART # 920P016010 IF STILL NO HELP PROBLEM CAN BE INTERMITTENT (TEMPERATURE RELATED) CAUSED BY IC7D04 PART # 275P245010 ON THE DOUBLER PCB THIS WOULD BE A THIN VERTICAL LINE IN CENTER, IF GUNS WERE ON.
Posted on Sep 19, 2007
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Posted on Jan 02, 2017
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