Question about Panasonic CT-27SC14 27" TV

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Panasonic CT-27SC14 This is a strange problem, or maybe not, the set when turned on appears to start up, I get High Voltage, static on screen and in checking there is indeed high voltage on the CRT around 20-30,000 volts, however there is no raster or picture or sound, no fuses blown and power indicator stays lit, the set does not shut down until turned back off, I suspect a problem on the secondary board, power supply board, any ideas as to what might be defective on this board to cause this? again I have no schematic for this model, any help would be appreciated.

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Re: Panasonic CT-27SC14

The high voltage should be around 29.5 KV and not fuctuate between 20-30 KV that would indicate a high voltage regulation issue then. Are the filaments lighted up in the neck of the CRT? If so then yes you are probably looking at a low voltage issue such as a 12 volt source or a a/v switching IC issue.

Posted on Apr 23, 2007

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