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Haitham
Joined: 15 Jan 2007 Posts: 3
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Posted: Mon Jan 15, 2007 4:45 am Post subject: 56' RCA Rear projection TV (FLYBACK related problem) |
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Hello!!
I just replaced the FLYBACK transformer (part # 239111) on my 56' RCA rear projection TV model P52921. I believe the new FLYBACK is not original. Anyhow, after replacement the TV powered up and initially the picture looked fine. However, everytime the unit is powered up there is a noise coming from the back that lasted for 3-4 seconds then it disappears. The TV worked well with the exception of the noise and a slight blurr at the very right edge of the screen. The TV worked in that manner for about 7 days until today it did not power up as it did before replacing the FLYBACK.
Without any testing and with those two clues (the noise and picture blurr) can someone help me understand what might the problem be?
It could be anyone of these: The new FLYBACK, the HOT blew, Driver and HOT base circuit components, the LV regulator, or maybe bad soldering to the new FLYBACK.
Any good ideas?
Thanks! |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Mon Jan 15, 2007 5:10 am Post subject: |
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What's the chassis #? CTC or ATC or PTK ??? |
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Haitham
Joined: 15 Jan 2007 Posts: 3
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Posted: Mon Jan 15, 2007 3:42 pm Post subject: |
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minnie wrote: | What's the chassis #? CTC or ATC or PTK ??? |
It is CTC195M |
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Guest
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Posted: Wed Jan 17, 2007 3:51 am Post subject: |
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I think I am close to finding a solution...just need the location on board and part number to the HOT and Horizontal drive transformer ....
Thanks in advance! |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Wed Jan 17, 2007 8:24 pm Post subject: |
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H out should be q14401. P/N 237470. Also check r14125 . I doubt hor. drive xistor is bad. |
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minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
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Posted: Wed Jan 17, 2007 8:27 pm Post subject: |
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Sorry transformer. |
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Haitham
Joined: 15 Jan 2007 Posts: 3
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Posted: Wed Jan 17, 2007 9:30 pm Post subject: |
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That is impressive you found the part number. How did you obtian it? Is there some sort of database online? |
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