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RCA Model F32648

 
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Ringo
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PostPosted: Wed Jan 30, 2008 6:57 pm    Post subject: RCA Model F32648 Reply with quote

I have an RCA Model # F32648 that is a few years old that stopped working after just a few years. It has been sitting and I would like to try to fix it my self. When I turn it on it jus puts off a high pitch squeal. I can not turn it on or off (the screen stays black so I don't know if it is on or off) Any sugestions?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Wed Jan 30, 2008 8:31 pm    Post subject: Reply with quote

The squeal is fro the horizontal out put transistor 2SD5148 the transistor on the heat sink by the flyback Q4401 I'd replace the flyback also.
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frank
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PostPosted: Wed Jan 30, 2008 10:55 pm    Post subject: Re: RCA Model F32648 Reply with quote

Ringo wrote:
I have an RCA Model # F32648 that is a few years old that stopped working after just a few years. It has been sitting and I would like to try to fix it my self. When I turn it on it jus puts off a high pitch squeal. I can not turn it on or off (the screen stays black so I don't know if it is on or off) Any sugestions?


I had the same problem one time and i only had to replace the HOT and resoder all over the horizontal circuit, special L14401,
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J8994
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PostPosted: Mon Aug 18, 2008 6:26 pm    Post subject: Reply with quote

Does anyone have a service manual for this model, i have a tv that is doing the same thing. also where can i find a replacement Horizontal transistor
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Aug 18, 2008 8:16 pm    Post subject: Reply with quote

It' a 2SD5148. Check Q4401 (2SD51480) to see if it's shorted. Also resolder L14401.
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