HannStar Monitor

Koda · 10-02-2011, 02:31 PM

Re: HannStar Monitor

You should also check for cold solder joints, there are some LG TV's having vertical lines due to cold solder joints. Maybe your's is a problem similar to those.

killian6pk · 10-02-2011, 02:03 PM

Re: HannStar Monitor

I'm still to new at this to give much information, but two things I would check. First I read somewhere that single lines going from top to bottom were connection problems in the tape carrier package which I think is shown in your picture number 5. If that is true I can tell you what I read about the solution to that problem. Also in the power supply why are the pink and white wires glued into the board like that. It makes me think someone broke off the CCFL connectors and this was a patch job. You might check that out on the bottom of the board and see if that is what has happened. I would think that might be a source of your problems also.

rigeback · 10-02-2011, 10:00 AM

Re: HannStar Monitor

okay thanks

alexanna · 10-02-2011, 09:34 AM

Re: HannStar Monitor

See what some of the other members say, but I think the Samxon GF or on the list.

rigeback · 10-02-2011, 09:25 AM

Re: HannStar Monitor

The black caps on the video board are Capxon and the green caps on the power board seem to be GFCMD or GF(M).

alexanna · 10-02-2011, 09:03 AM

Re: HannStar Monitor

Well low and or no voltage going to the panel could mimic an open fuse.
Just because the caps look OK doesn’t always mean they are good.
There are some capacitors that are considered replace on sight.

rigeback · 10-02-2011, 08:59 AM

Re: HannStar Monitor

Whoops, durring start up the screen does show pixel lines darker where the mark is located, the other controls do not change anything except for power switch.

rigeback · 10-02-2011, 08:50 AM

Re: HannStar Monitor

Theres 2 slight marks about 2" long (that I could live with) as I don't think the pixels are stuck but on the other hand they could be.
I dissasembled the screen and gently cleaned the area with isopropyl and the mark seem to dimish slightly.
Its basic assembled and hooked up to the computer again with no color what so ever just nice and white.
The power switch responds normally although no voltages have been measured, the green and black caps look okay.
I think the problem is on the lcd board simular to previous senario.

alexanna · 10-02-2011, 07:41 AM

Re: HannStar Monitor

What type of line? Like a colored row of stuck pixels?
What brand are the Blue/Green caps?
Dose the power switch and PLED respond normally?
Have you verified any voltages?

rigeback · 10-02-2011, 07:15 AM

Re: HannStar Monitor

Originally posted by rigeback

Found this monitor today at the dump and tried it out, monitor comes on with a line on the screen and then remains white, lamps are working and power supply. Took it apart hoping to find a SMD fuse blown (like before!) but no such luck, this ones a better model I guess since it has digital out put.
I would like to get it going for keeps as its in fair shape if you guys have any ideas. The photos are not so clear in some cases please let me know if I should re-shoot some areas.
Many thanks

hope I get some feedback!