Re: Samsung Syncmaster 245BW

I recieved my new components in and replaced the 68 ohm resistor as well as most caps as I don't want to fix this monitor again.
All works well and also my bulk voltage is at 390v instead of the 165v I originally reported. I did not have to change the bulk cap CP803.
Thanks for everyones help.

Philboye

Re: Samsung Syncmaster 245BW

Hi guys, I am new to the forum so please bear with me if this has been discussed before.
I am trouble shooting a 245BW power supply and like many have no 5.3 V or 24V. I had one bad bulged cap (1000 uf) but replaced three of the four in that area (one 2200 uf, two 1000 uf). I also have an open circuit on on RB805 (68 ohm). I am only getting 165V on the bulk cap CP803 instead of 380v (the cap is slightly bulged).
So my questions are 1) instead of replacing the three series 68 ohm resistors why not use one 200 ohm 2 watt?
2) Has anyone...

Re: New Members - please post your introductions here

Hi, I am just semi retired from the telecom industry (after 33 yrs) where I started out trouble shooting power suppies. I eventually got more into design and in the last six years into cost analyses of designs. I now have decided to get back into electronics and I am going to give LCD tv repair a shot.
I hope members on this forum will help me in this new endevor.

Thanks
Philboye