[TechAssist] Sony KV27FS100L

How reliable are blink codes? This set is becoming more of a problem than I 
first thought.  The blink code is four, indicating a problem in the vertical 
circuit, as I suspected before getting the service manual. I replaced the 
vertical I/C as the most likely cause per the self diagnostics. Problem 
remains, that being the set tries to start but never makes enough B+ and goes 
into stand by. I removed the HOT and replaced both switching mosfets. Nothing 
has changed. I have checked the lytics in that circuit, and supply resistors. 
Nothing shorted or low to ground on the B+ line.Haven't found anything bad yet. 
When I took the back off and saw that the chassis was the one that has bad tact 
switches I headed there first.  Anyone familiar with this chassis and this 
problem?
             Paul


Paul ,B
Central TV&Video
911W Grand Ave
Grover Beach Ca.
(805)481-8084

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