Re: Viewsonic VP2030b Flickering
Here's the photos I have of that part.
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Magnets
Member
Last Activity: 06-28-2012, 04:12 AM
Joined: 07-12-2010
Location: England
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Re: Viewsonic VP2030b Flickering
Been almost a week of usage and it's fixed.
I still have a problem with image persistence in a strip across the bottom few inches of the screen. Is that fixable?
If the same image is on the screen for a few hours I get an inverted ghost image that disappears after a while.Leave a comment:
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Re: Viewsonic VP2030b Flickering
I have it running with the rear cover removed and the metal cover/backplate for the power board is fairly hot (cool enough to hold your hand against but not for too long) is that normal?
What purpose does the sticky-back silver foil serve? It seems to have lost it's stickyness.Leave a comment:
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Re: Viewsonic VP2030b Flickering
I swapped the 330uf caps and it's been running fine for almost 3 hours, I haven't tried the USB hub yet but I'd rather just not use it than have to spend more time fixing it, or break something.
I have a small multimeter but I am not confident enough to poke around with it while live.Leave a comment:
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Re: Viewsonic VP2030b Flickering
Spoke too soon, it's flickering again
Will replace C204/205/174 now
Last edited by Magnets; 08-18-2010, 08:35 AM.Leave a comment:
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Re: Viewsonic VP2030b Flickering
I have just finished replacing C206 with Rubycon ZLH 1000uf 10V 8x16mm (10ZLH1000M8X16) and it has been running for 30 mins with no problems and the USB hub works fine now too. I didn't replace the others because I was too tight to buy a solder pump and just used the soldamop (braid) that I have, but it really doesn't work which makes things more difficult.
I noticed something rattling when moving the motherboard, but then realised it was probably just the tilt sensor
Thanks for the help
Last edited by Magnets; 08-18-2010, 08:11 AM.Leave a comment:
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Re: Viewsonic VP2030b Flickering
I've found most of the capacitors on farnell.
C206 1000uf 6.3V 8x15mm
Replace with Rubycon ZLH 1000uf 10V 8x16mm (10ZLH1000M8X16)
C204/C205/C174 330uf 16v 8x9mm
Replace with Rubycon ZLG 330uf 16V 8x11.5mm (16ZLG330M8X11.5)
C180/C181/C187/C188 100uf 16V 6.3x5mm
Replace with Panasonic FM 100uf 25V 6x11.2mm (EEUFM1E101)
C124 100uf 25V 6x7mm
Replace with Panasonic FM 100uf 25V 6x11.2mm (EEUFM1E101)
I'll get some of the USB board capacitors too, just...Leave a comment:
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Re: Viewsonic VP2030b Flickering
I've always try to avoid ebay so would prefer not to, but if that is the only option then I will.
The monitor has been working fine for almost a year so I presume that capacitor was fine when they fixed the unit before shipping it out to me.
One other thing though, I noticed this red wire had been trapped between the heat shield and the back panel and it has flattened the wire, you can see where it has left an impression on the yellow tape. The tape was also under the CCFL connectors, whereas the service...Leave a comment:
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Re: Viewsonic VP2030b Flickering
I noticed the same (c4) in the image, but it's just the angle of the flash/photo, the top is still flat.
I am looking at capacitors in Farnell, but they only seem to sell Panasonic NHG or FK [url]http://uk.farnell.com/panasonic/eca0jhg102/capacitor-1000uf-6-3v/dp/9692738[/url]
[url]http://uk.farnell.com/panasonic/eeufk0j102l/capacitor-electrolytic-6-3v-1000uf/dp/1744870[/url]
Can anyone suggest the best replacement? I see that RS also only stock those same Panasonic series. (looking for UK stockists)
The...Last edited by Magnets; 08-14-2010, 11:23 AM.Leave a comment:
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Re: Viewsonic VP2030b Flickering
I cracked it open and I can only see one bad capacitor (c206 - 1000uf 6.3V).
What is the correct method of removing the panel from the front and rear plastic casing? I had to leave the 4 screws in the back of the case and pry the front bezel off from the rear plastic case and simultaneously pry the latches that attach to the actual metal TFT panel.
I was expecting the rear case to just pop off after removing the screws.
I found this piece of plastic under the circuit boards, in this exact position. Anyone have...Leave a comment:
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Viewsonic VP2030b Flickering
When playing games, or viewing fullscreen images my display pulses/flickers. It also doesn't like coulered/patterned backgrounds but is fine with a white screen.
It's been doing it for a few months but been gradually getting more frequent and now my monitor is hardly usable, even using this forum it is causing it.
[update]It's intermittent though, screen has been on for a few hours now and it's no longer doing when viewing this forum.
I took a video a couple of months ago of CSS [url]http://www.youtube.com/watch?v=ZfRghUIMbbs[/url] (around 0:09/0:10 is a flash-bang in-game)...
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