Re: Samsung Syncmaster 400pn (no backlight)

Well hopefully these pictures are better, I took the monitor outside and used a tri pod. in picture 4 you can see I drew an arrow to the fuse, I soldered a small jumper across to be shure that it wasn't the problem. Also sorry about the extra thread but it was giving me a hard time posting (and I am new to this) a reply. I really do want to thank you for your help. I will check the tranformer as soon as I can. My wife has me doin a "honey do" project (installing bedroom carpet). So it will be this evening befor I can get to it....

Re: Samsung Syncmaster 400pn (no backlight)

Yes I checked all 5 fuses. the power supply board has 3.3v pins one for each inverter board called "on" (2 inverter boards) and has 24v pins for each board (4-24v pins for each). I did the flash light thing and the monitor is making a picture just fine,I am sure it is just a "back light" problem. See attached photos.
photo 1 I circled some parts that I tested. the top part tested 24v top and bottom the bottom part tested 24v on top and nothing on the bottom.I don"t know what these parts are (as I said I...

[ATTACH]18720[/ATTACH]in the attached photos I marked some parts I tested. Photo 1 the top part circled test 24v top and bottom, on the bottom one circled it only test 24v on the top of it. I don't know what these parts are. can someone identify them for me, and tell me if they are testing ok???
I photo 2 the copper coil looking parts test 24v on the bottom 5 pins and nothing on the top 2 pairs. Above them in the green area it says "caution high voltage" they don"t seem to have any voltage ac or dc. I assume they are the high voltage for the back lights or atleast suppose...

I have a Syncmaster 400pn. I replaced 5 bad caps on the power board, checked the 24v power pins going to both inverter boards, checked both fuses on both inverter boards, checked the power on pin (3.3v) on both inverter boards. I still have no back lights. Any ideas??? I am a very novis
electronics person, all self taught. So please no hi tech jargen if possible try to explain in laymens terms....