Re: HP LP3065 with partially failed PSU (USB works)
Hi!
And welcome to the forum!
That is actually news, since I'm only familiar with text-based menus.
I just wanted to say that I currently don't have access to the boards untill christmas, so untill then I can't do much; and I sort of forgot that I said I was going to put up some detailed photos of the circuit boards ... will see to it when I find the time.
Indeed it does. The [URL="http://en.wikipedia.org/wiki/DVI"]wikipedia article[/URL] on the...
MrYfe
Member
Last Activity: 03-20-2017, 07:23 PM
Joined: 04-09-2013
Location: Trondheim
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Re: HP LP3065 black screen, LED lighted, USB works
Hi, just thought I'd share my thoughts on this matter. I've got the same problem myself, and if you head over to my thread, you'll see that I've done a ton of measurements, without really getting anywhere. The progress is has halted because of exams and such, but I may have narrowed it done to either a bad diode or the main IC itself ...
The first thing we need to know is what kind of problem you're having. With "symptoms", did you mean visual ones or measurable ones?
If you allready...Leave a comment:
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Re: HP LP3065 with partially failed PSU (USB works)
The monitor only supports DVI, and since this is a 2560*1600 pixel display, it uses full/dual link DVI. Although it should also work with single link DVI. Which is the only thing I've tested it with ...
The one thing that made me suspect that something was avry, was that it didn't show the usual messages "No cable connected", "Going into sleep mode" , etc., and I've never encountered a monitor that at least in some form or another doesn't have a message like this.
...Leave a comment:
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Re: HP LP3065 with partially failed PSU (USB works)
We could make some sort of arrangment, but why don't you try to fix it?
Do you have a "to seconds to black" case, or something more like my problem?
Right now I've got some ideas to what may be wrong, but then again; I may be totally off
...
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Re: Opening HP LP3065
Same experience I had, really nasty clips all around the frame.
They really know how to make these things extremely difficult to open
What were your monitors "symptoms"?Leave a comment:
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Hi, I'm sorry I didn't see your question untill now, although I'm afraid my answer would've been much less helpfull than the response you got in your own thread.
Good luck in trying to fix your monitor! -
How did you get the back of the case off
Thanks
bob -
Re: HP LP3065 with partially failed PSU (USB works)
I finally got around to make some new measurements:
In circuit:
Zener diodes:
ZD100: 0.717/2.496 V
ZD101: 0/0 V
ZD661: 0.709/2.608 V
ZD681: 0.706/--- V
Normal diodes:
D101: 0.380/--- V
D241: 0.461/1.546 V
D301: 0.194/--- V
D307: 0.463/--- V
D602: 0.586/--- V
D683: 0.588/--- V
D684: 0.587/--- V
D841: 0.589/--- V
D?00: 0.459/2.602 V
D??0: 0.456/--- V
Double (and possibly other) diodes:...Last edited by MrYfe; 04-22-2013, 11:44 AM.Leave a comment:
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Re: HP LP3065 with partially failed PSU (USB works)
Hi, thanks for a quick respons; unfortunately I can't say the same about mine ...
Because my DMM don't have a way to measure diodes (I borrowed a DMM to make the diode measurements) I have to get a new one so I can complete them. I will report back when I do.
I'm sorry, I just forgot to take them ...
Do you think the diode measured at .2 Volts could be faulty as well?
Under are finally some pictures of my board. (Not that it is much different from freddyfenas ...)...Last edited by MrYfe; 04-12-2013, 12:05 AM.Leave a comment:
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HP LP3065 with partially failed PSU (USB works)
Hi,
salvaged one of these monitors from being trashed as I thought it would be a real shame since it is quite an expensive screen.
After some googleing I found [URL="https://www.badcaps.net/forum/showthread.php?t=13640"]this[/URL] thread by [URL="https://www.badcaps.net/forum/member.php?u=16693"]freddyfena[/URL], and it turned out it was almost the same problem: Computer detects the screen and the USB hub is working, but the screen itself doesn't work (and the front LED is orange).
I followed the instructions in that thread as far as it went, and...
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