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trinitron no picture but have sound

 
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doc11
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PostPosted: Mon Sep 10, 2007 9:51 pm    Post subject: trinitron no picture but have sound Reply with quote

hello i have a sony trinitron 32" model 3 kv-32xbr250 serial 3 9020583 we were watching t.v decided to move it to another room 2 days later and when we did we no longer have any picture of any kind the standby light flashes and continues to flash if anybody could help that would be great and if the screen volt. needs turned up were do you do that at. thx
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PostPosted: Mon Sep 10, 2007 11:28 pm    Post subject: Reply with quote

No reply from the jungle IC301 (data bus is busy, shorted to ground or held high), IK video path is defective
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PostPosted: Tue Sep 11, 2007 3:12 am    Post subject: Reply with quote

thx for the reply but i dont understand shorted to ground or held high? i did take all boards out of this unit to inspect them and found that the board A board # 1-674-081-12 has a crack by terminals ey5 and what appears to be ey7 could this be my problem thank you.
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cory
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PostPosted: Wed Sep 12, 2007 1:11 am    Post subject: Reply with quote

probably when you moved it.definitely a crack will cause this.join all traces that are boken with a wire jumper then life should be restored.or you can scratch off paint from trace and apply solder to bridge cracks.
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electronic guy
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PostPosted: Wed Sep 26, 2007 11:46 pm    Post subject: Reply with quote

depend on how many times does the standby light flash,usually it's the flyback
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minnie



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Posts: 2877
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PostPosted: Thu Sep 27, 2007 3:28 am    Post subject: Re: trinitron no picture but have sound Reply with quote

doc11 wrote:
hello i have a sony trinitron 32" model 3 kv-32xbr250 serial 3 9020583 we were watching t.v decided to move it to another room 2 days later and when we did we no longer have any picture of any kind the standby light flashes and continues to flash if anybody could help that would be great and if the screen volt. needs turned up were do you do that at. thx


Correct, what's the blink count.
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PostPosted: Thu Sep 27, 2007 10:20 pm    Post subject: Re: trinitron no picture but have sound Reply with quote

doc11 wrote:
hello i have a sony trinitron 32" model 3 kv-32xbr250 serial 3 9020583 we were watching t.v decided to move it to another room 2 days later and when we did we no longer have any picture of any kind the standby light flashes and continues to flash if anybody could help that would be great and if the screen volt. needs turned up were do you do that at. thx



also check C554 .0047mfd 2kv next the hot.
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minnie



Joined: 18 Aug 2005
Posts: 2877
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PostPosted: Fri Sep 28, 2007 9:53 pm    Post subject: Reply with quote

Good old Sony. Poor soldering on IC561.
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