Having problems with your Flat Panel Televisions ?

RCA LCD X2620W TV no picture and possibly no sound. TV has no picture and cannot see if speakers are turned off as I cannot get see menu's. Set has 5v standby and 5v switched. I also have 12v switched. I also see 24v that is present with set on or off?. Any and all help is greatly appreciated.



Answers :

Hi.

The PSU looks OK. Double check that Volts are OK on all outputs.

Check if there is DC out from main to inverter.
If you have no back light: If there is no DC to inverter, then it is usually main board. If there is DC to inverter, and the inverter has no AC high voltage out , then the inverter.

If you have back light, and the screen is blank but illuminated, then the problem is either main board or panel. Panel fails rarely and main controller may be difficult to test. In that case if nothing is found, the tech usually replaces the main.

This model should not have TCon board (I could not find model in database), if there is TCon board, more testing is needed, as timing control failure may also result in no raster.

All this providing that the PSU is good.

Testing must be done by a trained technician.

Here parts for most Toshiba.

Regards.

Ginko.

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