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Question about Philips 27RF70S 27" TV

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Philips 27RF70S125 I have a 2002 Philips 27RF70S125 and it keeps shutting off by itself. I will turn on again in 1-10 minutes but shuts back off again after a while. I looked at the CRT circuit board and do not see any resistor with R3340. Any other ideas? Thanks

Posted by Ruby Lewis on

  • Russ42 Feb 10, 2008

    have a 2002 Philips 27RF70S125 and it keeps shutting off by itself. I will turn on again in 1-10 minutes but shuts back off again after a while...

    Dealt with this problem for a year, then replaced Small Signal Board ($100 new online) on professional's advice. Solved the intermittent shutdown problem, but now have some pinchushioning I'm trying to solve....


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Check for a pot on the chasic board or check yoke if crt.

The problem is most likely you have a bad capisitor or cold solder joint in the primary circuit.
It will look like a half moon shap are dull looking, but look for swollen capacitors first and then cold solder joint second.
a capacitors stores electrons and release them as it need power to the circuit and if it's damage (leaking or swollen it wont ) do so.
Are the regulator break down under a load.
A shorted horizontal output transistor will power up and shutdown with in a few seconds or blow the fuse.
Just a short summary of what's what

Posted on Sep 03, 2010

Henry Thomas

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Your problem is intermittent in the pwer or related circuits have a tech check your tv good luck

Posted on Apr 18, 2007

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