[TechAssist] Re: Sony KV27FS100L

Four blinks can be either vertical or horizontal or something else that 
causes the vertical output to not work.

Leonard Caillouet
Service Manager
Electronics World
Gainesville, FL

----- Original Message ----- 
From: "Paul" <dntwntv@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 29, 2005 8:39 PM
Subject: [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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