[TechAssist] Re: Repost! sony kv32fs200 powers up, instant SD, 5 blinks]

  • From: Damon <DamonEB@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 22 Jun 2005 17:33:36 -0500

Actually don't always assume the 5 Blink failure  means Crt emission 
problems.
That Sony TV shows 5 blinks because that's what the TV picked up 
on..........
You could have missing 200V, no heater, no screen voltage, etc causing a 
5 blink code.

The key is the shutdown.......these TVs don't shutdown if the CRT 
displays a 5 blink failure.....they normally stay on.
Forget the 5 blink......troubleshoot it as though that Immediate 
Shutdown is the ONLY symptom you have!

Check B+ supply, check Horiz output, and don't forget......THE HV 
circuit is a separate circuit not associated with the Horiz Sweep circuit.
At least I think it is.........

Damon B
Telrad Electronics

Jim Myers wrote:

>5 blinks is an IK failure but normally the set will turn on, blink a few 
>times while CRT is warming up, then shut down with the 5 blink code 
>repeating. All the time while the CRT is warming up the HV, H 
>deflection, Vertical, ETC are all present. Immediate shut down with 5 
>blink code makes no sense. Are you sure the other shop is telling it 
>like it is? I normally ignore any post that says "assisting another 
>shop" because of how the story changes from one mouth to another.
>Are they seeing the 5 blinks during the short time the set is trying to 
>turn on? If so that is not an error code.
>Does the set turn on with a remote? There is a tip for no remote and 
>when turned on manually it turns itself off. If that applies check the 
>following.
>TV doesn't respond to remote and when turns on manually it turns itself 
>OFF.
>Found switch S1002 on the HS board defective.
>Also check, the diode D006 on the A Board IC1001/42 (Key Line) can also 
>cause symptoms of remote, or TV function miss-operations.
>
>
>
>********************************
>Since 1972                     *
>Jim Myers                      *
>Telrad Electronics             *
>Fort Wayne Indiana             *
>********************************
>
>
>Phil Bader wrote:
>  
>
>>During the instant before shut down during power up, HV reaches 25KVm for a 
>>"microsecond", 
>>Has +/- 12 and 15v on vert out IC. +200V at CRT OK. Has reg +135B OK.
>>Already changed with no help:
>>IC001 micro,IC301 jungle, IC561 vert, IC702 video,and the flyback! Removed 
>>tuner as test. Unplugged CRT board as well, also no help. Sony insists the 5 
>>blinks is a "signal problem"
>>PLeeeeese help! assisting another shop.
>>Sony absolutely no help.
>>Phil Bader
>>
>>    
>>
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