UPDATE: RCA TV (32" pic) F32676SB, ch CTC197CD

Jul 20, 2006 1 Replies

Hi,



I replaced the FBT even though all out of circuit tests on it revealed no defects. With a new FBT installed, the TV stays on. The HV is over 30KV (with a picture showing) and B+ is



141.5V (TV on). A label on the chassis (for this 32" picture tube type), says, "HV 29.5KV / 34.2KV". I assume this is a range of minimum to maximum? Please let me know if I am wrong.

Thanks in advance, Brad


Hi,
>
> I have a RCA (32" picture) TV model F32676SB, ch CTC197CD
>(mfg. 12/96) in my shop that shuts off right after turn on. I can hear
>HV at turn on. The regulated B+ is 151V in standby.
>
> Using a 250 ohm dummy load, the B+ voltage drops to 141.5V. I do
>not have a SM for this set. Is the standby voltage too high?
>
> 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.

Hi,

More Info:

I found two defective parts in the V. Regulator circuit. R126 open (overheated). It looks like 10K so I replaced it with

10K 1W. C147 1.5/100 105deg. was a little low. I replaced it with a 2.2/100 105deg (don't have 1.5). Now the standby voltage is 141V. HV measured 31KV (picture showing).

Brad

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