Sony bravia klv-32s200a

[Kevin O'Henly]

This LCD set has a CCFL inverter / panel problem.

The set powers-up with a green led set indicator.

Then the panel is backlit; stays backlit for 2 sec. and then the backlighting goes off.

...no red led error blink code???

It is my experience that when an LCD goes 'on' and 'off' like this one does the problem is a CCFL and/or inverter issue. ...almost every time.

In this case the inverter board is defective. The bad actor is the OZ9966 IC
I would also like to replace the inverter transformer T831/Y6K5 .

Anyone know where these parts can be found?

The inverter board is a PCB2775 / A06-127065.

[mbates14]

Re: Sony bravia klv-32s200a

check the orange/blue polymer/mylar capacitors near each inverter transformer. seen them leak/short and cause this.

[Kevin O'Henly]

Re: Sony bravia klv-32s200a

Thank you for the assistance.

On this occasion the bad actor is the inverter transformer.
I proved it by disassembling the panel so that I could see the CCFL's.
With this inverter board each transformer operates 2 tubes.
The suspect transformer fails to ignite one of two CCFLs in the transformer circuit.
Moving the suspect transformer to a different location on the inverter board moves the fault as indicated by the failed CCFL ignition at the new location.

If I can locate the inverter transformer ( T831/Y6k5 ) then this set avoids the scrap pile.

...for the time being.

[Chilehead]

Re: Sony bravia klv-32s200a

Kevin, did you have any luck locating a transformer for your set? I have one with an open secondary and have had no luck in finding one. I did find a rebuilt board and will probably go that way, but since I am inherently cheap I thought I'd see if you had made any headway.

R.K.