Apex LD4688T - bad inverter ss1460_12f01

[ryan74]

this tv backlight turns on for 1 sec and shuts down. the cable to inverter tested 24v. It appears to be getting power to inverter. I noticed transformer at loc. T200 looks burnt(see pics).
the pic of entire inverter board is off shopjimmy site(not my board).

First off I am wondering if anyone has a source for the
transformer 340158AD or an alternate part. I cannot find one.

second, can i check the circuit leading to the transformer with a multimeter to be sure other parts are good? if so how.

Hopefully someone is familiar with this board and can give some input. it seems to be a common problem.
i am going to look through my spare boards. update: closest i have on hand is 340163AD. probly wont work.

[ryan74]

Re: Apex LD4688T - bad inverter ss1460_12f01

I still cannot find a transformer for this inverter board. A while back I read a post where someone found a similar board direct from china from a translated site like this. https://translate.google.com/transla...ml&prev=search
I am not 100% sure if it is the correct part but it is $15.00 us

Board #- ss1460_12f01 rev. 2 03319AWB338119G0

transformer part #-340158AD U0 1187 c k

I did find this transformer 340158AD U0 1141 c s but I do not know if it is close enough and they show different parts in there pictures.http://world.taobao.com/item/5230697....FS5uuN#detail

UPDATE: I found this http://www.directtao.com/p-39877854740.html
but all there shipping options say $0.00 so i am waiting on an email about it.

[ryan74]

Re: Apex LD4688T - bad inverter ss1460_12f01

I thought there would be response to this since it is a common problem for this tv and 6 other tv models, 3 are sony. It is such a common problem I cannot find a board or parts in stock anywhere online. I prefer finding the transformer for lower cost. I do not know how or if it can be cross referenced with another part.
p/n- LJ97-03319A
transformer #- 340158AD U0 1187 c k
I will sit on this a few days and hopefully someone has a spare part or something.

[Caleb]

Re: Apex LD4688T - bad inverter ss1460_12f01

Are you sure the transformer is bad? You can test for ohms on primary and secondaries. If you have a ring tester that is the best method. Have you tested feedback from lamps to make sure you don't have an out of spec bulb? Im not saying it couldn't be the transformer but there is a lot of tests you can do to confirm.

[ryan74]

Re: Apex LD4688T - bad inverter ss1460_12f01

Yes I am sure transformer is bad.
I bought a board from buyqual.com. it should be here in 2 weeks.