Re: Westinghouse Monitor Fading Colors
I replaced the two metal caps with ones that I took off an old Dell motherboard. Didn't replace the other one.
However, I was testing the DC across the big cap on the power board that I haven't replaced yet. I guess I didn't ground something properly because when the metal part of the VGA connector touched the metal of the housing that the boards sit in - there was a little puff of smoke from the logic board. I can't figure out exactly where because there are no burn marks.
I reassembled everything and plugged...
DavidTomen
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Last Activity: 02-03-2011, 08:15 PM
Joined: 09-12-2010
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Re: Westinghouse Monitor Fading Colors
It jsut occured to me what you mean by "FXX". I've identified the fuse marked "F1". A little white thing with a "3" on it. A continuity check shows that it is good.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
I'd like to replace the metal capacitors on the logic board as you suggested. There are two marked:
100
16V
L7C
and one marked:
q3
330j
WZ
Would I replace the first two with regular 100uf16V caps similar to the ones on the power board?
I can't find the fuse that you are referring too marked "FXX". I've checked both the inverter board on the LCD panel itself, as well as the logic board.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Is this fuse on the inverter board on the panel raised off the panel and round with a "100" on it?
BTW, i have no picture now since I started messing with the LVDS cables. All I get are a lot of multi-colored vertical stripes.Last edited by DavidTomen; 09-24-2010, 05:01 PM.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Well, I am aware that this forum is mostly about bad caps. But now that I've replaced them I am convinced that I have a bad LVDS cable going to the LCD panel. (it too me two freaking days to figure out what the cable was even called).
Does anyone here know where I can get a replacement LVDS cable? I've spent hours searching eBay, using Google, went to Mouser, etc. There are vendors that will sell individual LVDS cables for specific monitors. Usually in the $40 - 60 price range. But not for Westinghouse who don't even appear to...Leave a comment:
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Re: Westinghouse Monitor Fading Colors
I haven't got the patience nor a steady enough hand. I'd like to just replace the cable if I knew where to find one:-)Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Any idea where I can get a replacement ribbon cable? And better yet ... what exactly am I looking for? There are two ribbon cables in this monitor. One I think is 50 pins going to the LCD panel from the logic board (32-D021705). The other is 15 pins going from the logic board to the control buttons (32-D021698). The model numbers are on sticky tape on the cable, and I don't know if that is proprietary to that monitor or is some standard numbering system used for ribbon cables.Last edited by DavidTomen; 09-21-2010, 09:47 AM.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
A little more info since my last post. I finally found the manual for this monitor online. I was able to reset the monitor to factory default settings (which is what I used when I first got the monitor).
The display went almost completely white. Does anyone have any inclination as to what is going on here? Is this an electronic component issue, or is the LCD panel itself failing? I spent an hour searching for symptoms of a failing LCD panel with no luck. And I'm a pretty damn good researcher.
Cheers,
Da...Leave a comment:
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Re: Westinghouse Monitor Fading Colors
I tried in on my wife's Dell desktop PC which uses a Dell LCD monitor. The display remained the same.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
I rec'd and installed all the caps with Panasonic except for the big one. I expect that one to arrive in the next few days.
The flickering seems to have disappeared from the display, but the colors are still washed out. This happens as soon as the monitor is powered on.
I've tried adjusting colors, brightness, etc. with the buttons on the side of the monitor as there does not seem to be a way to make adjustments using the laptop with a VGA connection. I have ordered a DVI-D to HDMI cable from Amazon which I hope...Leave a comment:
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Re: Westinghouse Monitor Fading Colors
That I am.Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Thanks for the advice on the multimeters. I'll be ordering the caps today and report back once those arrive and are installed.
Cheers,
DavidLeave a comment:
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Re: Westinghouse Monitor Fading Colors
Logic Board Voltage Regulators:
50117
K-G
73822
Pin 1: 0V
Pin 2: 3.3V note: is not connected as the other two are
Pin 3: 4.74V
L1117LG-1.8
XB52J0286
Pin 1: 3.3V
Pin 2: 1.8V
Pin 3: 0V
Logic Board Pin Connectors:
Top row:
Pin 1: 4.99V
Pin 2: 0V
Pin 3: 0V
Pin 4: 0.04V
Bottom row:
Pin 1: 4.99V
Pin 2: 4.99V
Pin 3: 0V
Pin 4:...Leave a comment:
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Re: Westinghouse Monitor Fading Colors
The washed out color starts immediately after power on. It get progressively worse after about a minute and then stabilizes. Everything is legible but faded. And there seems to be a shimmer, or - I don't know how to explain it. Flickering over the entire screen?Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Thanks for the quick reply. One thing that I neglected to mention. I hate my multimeter. What is a good, inexpensive multimeter that I can pick up at Sears or Home Depot?Leave a comment:
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Re: Westinghouse Monitor Fading Colors
Hi guys. I do have a multi-meter but will likely need a little coaching on how to use the dang thing. I'm attaching the pics. There is a mosfet (Nikos P2804ND5G) that is a little suspicious that is located next to the green "Tested OK" sticker. I only say that because the back side of the board is discolored in that area....Leave a comment:
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Westinghouse Monitor Fading Colors
Hey Guys: Enjoyed searching the forum this afternoon looking for a solution to my monitor issue, and alas - seems I may have another problem.
This is a Westinghouse L1916HW that I've had for a couple of years with a Darfon B092-XXX inverter board. It worked beautifully for what it is until about a week ago when I powered it up ... The screen was washed out with faded colors and a green tinge overall. There seems to be a shimmer to the display as well. The image is clear enough to be legible but I can't use it because it kills my eyes. I spend 12 - 14 hrs a day on this thing for...
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