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Toshiba 32a35 gradual vertical collapse    
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nce1111



Joined: 16 Nov 2008
Posts: 2
Location: PHX AZ USA

PostPosted: Sun Nov 16, 2008 8:00 pm    Post subject: Toshiba 32a35 gradual vertical collapse Reply with quote

Toshiba
32" crt 32A35


the set is three years old.. first started as vertical rollover went away on warm up.. now will not expand completely.. seems like a bad electrolytic cap possibly vertical output ic? just hoping someone can point me in the right direction or actually is familiar with the set.
Thanks...
Nick
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Jesse Mack



Joined: 22 May 2008
Posts: 600
Location: The Last Frontier

PostPosted: Sun Nov 16, 2008 9:20 pm    Post subject: Reply with quote

IC401 = Vertical output IC = LA78041
Electrolytic caps in the order of likely cause of problem is
C407 = 100UFD@35VDC
C409 = 10UFD@50VDC
C408 = 1000UFD@25VDC
C406 = 1UFD@50VDC

Starting at dead center of pcb and going to the front you will bump into a heat sink that contains IC401. The Electrolytics are in and around this heat sink.

Hope this helps

Jesse
nce1111



Joined: 16 Nov 2008
Posts: 2
Location: PHX AZ USA

PostPosted: Mon Nov 17, 2008 10:11 am    Post subject: Reply with quote

thanks a lot.... exactly what i was looking for!
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