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PEE_WEE -- please advise Magnavox 27TS54C101 Chassis 27B800-7562

Posted by old_school_andy (My Page) on
Wed, Feb 1, 06 at 16:42

Pee Wee, I have a Magnavox 27TS54C101 Chassis 27B800-7562 that has no picture or sound -- all I hear is a faint ticking coming from the electronics (flyback?) when I turn it on. Upon opening the unit, I see that C506 is charred and smokes when trying to turn on the TV.

Please confirm that C506 = 820pF 2kV capacitor

Can capacitors just go bad? That is, if I replace this capacitor (there are no other visible problems the circuit board) should that resolve the problem or is the burned capacitor a symptom of bigger issues with the transformer or power supply?

Many Thanks,
Andy


Follow-Up Postings:

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RE: PEE_WEE -- please advise Magnavox 27TS54C101 Chassis 27B800-7

Yes, capacitors do go bad. This a disc ceramic capacitor, which do not "usually" go bad, unless the circuit is designed wrong or the capacitor is undersized voltage wise.

I always replace c506 with a 3kv voltage capacitor. Even then, it will "run hot", but should stay ok.

The value of 820pf is ok, but I think the voltage should be 3kv instead of 2kv.

The set should run ok after you replace c506.

pw


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philips tv model 21pt128a/97r

PHILIPS MODEL 21PT128A/97R
NO SOUND AND NO PICTURE
GRAY RASTER WITH RETRACE LINE
CHANNEL BUTTON NOT RESPONDING
SECONDARY VOLTAGE SEEMS TO BE NORMAL EXCEPT FOR 13 VOLTS LINE BECOMES 15.5 VOLTS
Can anyone please help me how to figure out where the problem is and how to do it.


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RE: PEE_WEE -- please advise Magnavox 27TS54C101 Chassis 27B800-7

I have a PHILIPS TV, MODEL number is 27TS54 and tha chassis number is 27B800-7562
It have sound with a distorted picture (see attached picture)

CHANNEL AND VOLUME BUTTONS WORK WELL
SECONDARY VOLTAGE SEEMS TO BE NORMAL. U+=130.7V
I doubt the distortion CAUSED BY THE bad IC (TDA9302I)(may be BROKEN)
Can anyone please help me how to figure out where the problem is and how to do it. Thank you!

Here is a link that might be useful: That Home Site


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Philips 27TS54, It has sound with a distorted picture (continue

I just want to follow-up a distorted picture that I mentioned on the previous posted text.


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