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Sony KP-43T75 Problem

 
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Fudman
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PostPosted: Fri Sep 01, 2006 6:02 am    Post subject: Sony KP-43T75 Problem Reply with quote

I have an unusual problem with my KP-43T75 rear projection TV that the Sony Direct Response Center nor the local Sony repair man can diagnose. The TV went blank when my kids were watching so they shut it off. When I powered it up, the red TIMER/STANDBY light blinks once and then stays on. There is no flashing error code, just one blink and it stays on. There is no video or sound. I also cannot shut the TV off with either the remote or the front panel on/off switch. The only thing I can do is unplug it.

Does anyone have any ideas regarding this problem? Is the TV toast? Any help would be appreciated.
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Kurious1
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PostPosted: Fri May 11, 2007 6:37 pm    Post subject: KP-43T75 RE: Fudman Reply with quote

Kurious as to know what solved the problem with your Sony screen tv. I have the same problem. Thanks. [email protected]
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Kurious1
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PostPosted: Fri May 11, 2007 6:41 pm    Post subject: Re: Sony KP-43T75 Problem Reply with quote

Fudman wrote:
I have an unusual problem with my KP-43T75 rear projection TV that the Sony Direct Response Center nor the local Sony repair man can diagnose. The TV went blank when my kids were watching so they shut it off. When I powered it up, the red TIMER/STANDBY light blinks once and then stays on. There is no flashing error code, just one blink and it stays on. There is no video or sound. I also cannot shut the TV off with either the remote or the front panel on/off switch. The only thing I can do is unplug it.

Does anyone have any ideas regarding this problem? Is the TV toast? Any help would be appreciated.


[email protected] would like to know what you figured-out with your Sony.
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Kurious



Joined: 10 May 2007
Posts: 2

PostPosted: Tue May 15, 2007 1:47 pm    Post subject: Sony KP-43T75 no power-up Reply with quote

Can anyone let me know if they have any ideas as to a power-on light is working, no codes, no picture, no sound, and a must unplug for a retry only symptom. The main fuse is ok. Any help would be appreciated.
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cory
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PostPosted: Tue May 15, 2007 11:50 pm    Post subject: Reply with quote

im not 100% sure but this chassis might have pcb mounted on ride side looking from back,with 2 convergence ics on it.also 2 3.15 amp fuses.check fuses,if one open change ics (stk392-010) and fuse.
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Kurious1
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PostPosted: Wed May 16, 2007 1:36 pm    Post subject: Sony KP-43T75 Reply with quote

Thanks Cory. It does have the 2 Chips, but I can only locate 1 fuse. I will double check. God Bless.Kurious.
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Kurious



Joined: 10 May 2007
Posts: 2

PostPosted: Fri Jun 01, 2007 4:50 pm    Post subject: Kurious Reply with quote

Both IC,s have been replaced. TV has only 1 fuse- which is good. Anyone for some more ideas. Thanks. K.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri Jun 01, 2007 9:52 pm    Post subject: Reply with quote

Start with the basics, check the horizontal out put transistor near the flyback to see if it's shorted.
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Kurious1
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PostPosted: Sat Jun 02, 2007 4:35 pm    Post subject: KP43T75 Reply with quote

I really appreciate your help- but I just threw it out. SONY's suck. Who do you recommend as a fair manufacturer? Thanks. K.
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