Hi,
Thanks to everyone who offered to help.
The problem turned out to be the remote receiver IR001A pt # 270382.
If you remove IR001A as a test, make sure you put +5V on pin 1 circuit.
Brad
Hi,
>
> I have a RCA TV model 27V412T, chassis M134C (mfg 01/06) in my shop
>that seems to have a mind of it's own. My customer said this problem got
>worse over time (a few weeks). I have Sams Photofact 5234.
>
> The TV will play for a short time, then turn off, a short time later, it
>turns back on, then again it goes off, etc. I checked all solder joints
>(AOK).
>
> HV is 28KV, reg B+ is 130V "run", and 10V in standby.. While the TV
>played, flexing the circuit board (removed from it's holder), tapping the
>circuit board, using a hot air gun on parts, had no effect.
>
> I checked electroylitics in primary side of SMPS and reg. B+ (AOK).
>I checked voltages on secondary side of SMPS and found a schematic
>error for 24V source. I found 24V present at emitter of Q205 used as a
>"switch" (one of several) which indicates the 24V source is normal.
>
> Did anyone encounter a similar problem?
>
> Thanks in advance, Brad
>
> Before you type your password, credit card number, etc.,
> be sure there is no active keystroke logger (spyware) in your PC.