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-   -   Magnavox PTV525 Big screen (https://www.diybanter.com/electronics-repair/46142-magnavox-ptv525-big-screen.html)

Jesus Alvarado !! July 26th 04 09:14 PM

Magnavox PTV525 Big screen
 
Has sound but no Picture , Flyback ?



techforce July 26th 04 11:33 PM

Magnavox PTV525 Big screen
 
Or maybe the HV block?


"Jesus Alvarado !!" wrote in message
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| Has sound but no Picture , Flyback ?
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Bill Jr July 27th 04 01:16 AM

Magnavox PTV525 Big screen
 
Or more likely a shorted Blue CRT.



"techforce" wrote in message
...
Or maybe the HV block?


"Jesus Alvarado !!" wrote in message
. com...
| Has sound but no Picture , Flyback ?
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techforce July 27th 04 04:06 AM

Magnavox PTV525 Big screen
 
Well, at least we narrowed it down for him...grin


"Bill Jr" wrote in message
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| Or more likely a shorted Blue CRT.
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| "techforce" wrote in message
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| Or maybe the HV block?
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| "Jesus Alvarado !!" wrote in message
| . com...
| | Has sound but no Picture , Flyback ?
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BWL July 29th 04 03:41 PM

Magnavox PTV525 Big screen
 
Check low value resistor (R939 I think) near HOT; if it's open, look down into
the blue CRT using a good light and see if the tube is cracked; also look at
the neck of the CRT; you may see liquid in there; if so, replace blue CRT, if
you want to spend that much on it...I have seen a couple of bad flybacks on
these, and even a couple of bad SMPS transformers, but usually it's the tube.


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