Comments on: HP Pavilion f1703 Flat Panel Display Blackout Solution

By: Ann

Ann — Tue, 27 Jul 2010 23:02:19 +0000

Same problem with mine but can not find the fault in the solder joints….anyone willing to look at mine?

By: JC

JC — Sun, 25 Jul 2010 21:04:37 +0000

Thanks man. That was exactly what’s wrong w/ mine. It was a different cold solder join w/ one of the coils. When I did the visual inspection the first time, I did not use any magnifying glasses and I missed the d*mn cold solder joint. Finally I took your advice and used a high power magnifying glass and spotted the bad joint within one minute. Most high tech equipments are fairly reliable today, except most of them fail on the most basic electrical issue – cold solder joints. That’s how I fixed my expensive Sony TV, dehumidifier and the list goes on and on.

Thanks for your post man, have a wonderful day! :-) :-)

By: mr.leslie.wong

mr.leslie.wong — Mon, 24 May 2010 20:30:07 +0000

A 12V 3 amp power supply should be OK. If it’s still blacking out, it sounds like you still haven’t found the component that isn’t soldered correctly.

I don’t have any experience with the BenQ board.

By: Wayne

Wayne — Mon, 24 May 2010 15:14:51 +0000

I picked up a F1703 for $5 at a yard sale. It has the flash to black screen after 2 seconds of good display. Tried to solder suspect joints but problem persists. My circuit board was mad by BenQ 55L0U02001 and has a completely different layout of components. Any one else have his board?
Also I’m using a 12V 3Amp Power supply will this cause problems?

By: mr.leslie.wong

mr.leslie.wong — Sat, 22 May 2010 23:30:44 +0000

Thanks for the tip, Janv.

By: Janv

Janv — Sat, 22 May 2010 21:57:55 +0000

Very helpful, this! Resoldering the cold joints worked for a couple of times, but now, after about a year and a half, I ran out of badly soldered joints. There were no obvious defective components. I removed and checked the capacitors, but none of them were leaky. Still the screen blacked out after a couple of seconds.

What did the trick now was resetting the monitor to factory defaults. I found the suggestion on the (closed) cnet-forum f1703-topic (post 392). You need to connect the monitor to a computer before the menu-button will work. Although the screen is black, you can see the menu when you look carefully.

Worth a try, I would think. Good luck!