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F36650 36 Hi Benimur... I'm new to this website, and managed to loose your answer to my problem with LP03, and the Flyback xformer. You said to do a forward and reverse check of the HOT or Horizontal output transistor? and the FBT, what is the FBT? I have not made a living in elctronics in 13 years, and this is my first venture inside a TV. Thanks mjknfun

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Hi again,

Appreciate the direct "Ask Me"

To your unit RCA F36650/CHASSIS # ATC113CA1, I posted replies to your original problem here.
FBT would be the FlyBack Transformer or Line OutPut Transformer (LOPT).A ring test is check for the FBT out of circuit using an instrumentthat sends pulses to the FBT's primary circuit. Thereafter a comparatorcircuitry checks the number of damped oscillations or 'rings' producedand determines if the primary is good or not.
Incidentally, it could also be the power supply unit (PSU). You could verify by doing the check on the HOT or lifting the supply to the main B+ going to the FBT and trying it. It the PSU powers up and the light lits as well as the sound comes up, the PSU is good and HOT/FBT is suspect.
You might be better off getting hold of a service manual or at least a schematic diagram.

Incidentally, 13 years is a rather long time in electronics with the technology changing at such a fast pace. 13 years ago we still have a few Betamax and laserdisc players especially those by Pioneer.

Cheers.

Posted on Jan 04, 2009

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photo7 says:
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