View Single Post
  #20   Report Post  
Posted to sci.electronics.repair,alt.home.repair
Franc Zabkar Franc Zabkar is offline
external usenet poster
 
Posts: 1,569
Default Samsung 27" TV doesn't work.

On Sat, 23 Dec 2006 22:18:47 GMT, George Jetson
put finger to keyboard and composed:

Someone gave me a Samsung 27" TV, Model TXL2791F. When I tried to turn
it on it did nothing. No indication of power at all. I opened it up and
checked the fuses. All good.

I got a copy of the schematics, and did a little circuit tracing.
There's a component called a flyback transformer, which is connected to
a component called a high voltage tripler, which is connected to the CRT
high voltage anode. There's a picture of it at
http://www.wehaveparts.com/index.cgi...=1553&cart_id=
1146478751 . The picture says it's a flyback transformer, but according
to the schematic it's the tripler. The schematic just shows a box. No
internal wiring.


The HR Diemen HR8720 appears to be an equivalent:
http://www.hrdiemen.es/products/inde...roduct&id=7357

FBT wiring diagram with voltages:
http://www.hrdiemen.es/products/inde...mas/HR8720.gif

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.