HP 1740 lcd monitor white screen.

[andy smethurst]

Hi, everyone

I have a HP 17" lcd monitor that powers up to a white screen. This is a new fault for me even though I have heard of it, i never wanted to see it. I have tried different data cables and computers, and checked the capacitors and pico fuse. Is there a typical fault condition that causes the white screen?.

Thank you for any experienced feedback. Andy

[sofTest]

Re: HP 1740 lcd monitor white screen.

The most common cause for a white screen, is a defective fuse on the video/logic board in the monitor, not on the power/inverter board, if that's the one you have checked. If it's only the fuse, or there is faults that caused the fuse to open, has to be investigated by you.

[andy smethurst]

Re: HP 1740 lcd monitor white screen.

Thanks SofTest for the tip, I then moved to the data board and found two s.m fuses.
Unfortunately these tested OK.

[PlainBill]

Re: HP 1740 lcd monitor white screen.

Thanks SofTest for the tip, I then moved to the data board and found two s.m fuses.
Unfortunately these tested OK.

I think you are still not looking at the correct board. Just to humor me, post a picture of the back of the lcd panel.

PlainBill

[andy smethurst]

Re: HP 1740 lcd monitor white screen.

I see, I thought you meant the dat board. I then checked the fuse on the LCD board, and yes it was open. I could not find why, so i replaced it with a similar one of the same amperage, and when turned on burned a three pin device on the data board near the data to LCD socket. The components on the lcd board are getting to small to see or re-work these days.

Regards: Andy.