I just wanted to let you folks know that I successfully repaired my Viewsonic vx2835wm monitor.
The original thread with photos is here ([url]https://www.badcaps.net/forum/showthread.php?t=23342[/url]) for those that may come across this thread in the future.
I couldn't get my head round how to do the actual board testing and I didn't want to blow myself up so I ended up just going for a recap session. I recapped the ones as highlighted in the pictures by Lumberjack777 In the original thread reply ([url]https://www.badcaps.net/forum/showthread.php?t=23342[/url]) on the power board...
scotstrength
Member
Last Activity: 12-03-2021, 04:35 PM
Joined: 10-21-2012
Location: prague
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Fixed! Viewsonic VX2835 - Newbie story
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Re: lifted the solder pads help!
Hi Selldoor,
Yes from what i can see the traces look attached and undamaged - just lifted.
As for 601, that is the state i found it in when i opened the case. From reading the forum feedback this board runs hot and i was told that this type of burn residue is normal, guess i will find out if i can get it back up and running.
Too late to quit now, in far too deep as this stage
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Re: lifted the solder pads help!
Hi All,
Please see the photos below of my lifted soldering pads from the power board.
Any ideas on the best way to fix this much appreciated.
Cheers
...
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lifted the solder pads help!
Hi folks,
In the process of recapping a Viewsonic vx28wm monitor (same power board as the Hanns G mega thread) i appear to have lifted the solder pads off some parts of the power board.
My initial thread questioning as to how i would go about fixing it along with initial pics is located here: [url]https://www.badcaps.net/forum/showthread.php?t=23342[/url]
I am a self confessed newbie
in all of this but did take the time to practice my soldering on a practice board and i thought my recapping on the main board went very well for my first time and all that.
However... -
Re: About to recap Viewsonic VX2835 - Cap brand question
Cheers for the reply selldoor.
Just picked up the caps yesterday from the post office so will start the process in a couple of days.
Have you ever heard or used Hitano caps before? If so any reports on their longevity/performance.
ThanksLeave a comment:
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Re: About to recap Viewsonic VX2835 - Cap brand question
Hi Guys,
Sorry for the delay in getting back to this but here is some more info and pics.
There is only 4 caps that i will likely replace where i cannot obtain Panasonic replacements. I have pointed out their positions on the board and they specifically are:
Ltec: 3 X 22uF 35v TK series to be replaced by:
[url]https://www.conrad.cz/miniaturni-kondenzator-105-cd70hqg-22uf35v.k446245[/url]
or
[url]https://www.conrad.cz/elektrolyticky-kondenzator-yageo-105-c-22uf-35v-6x5-rm2-5.k445643[/url]...Leave a comment:
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About to recap Viewsonic VX2835 - Cap brand question
Hi folks,
I just ordered new capacitors to recap my viewsonic vx2835 (which has the same power board as the Hanns G HG28) and i was able to mainly order Panasonic FC brand caps for all but a few of the capacitors. However there were some caps i just couldn't find readily available here (czech republic) or in fact europe in a board recommended brand. I would have to order from the US or buy in great bulk.
One example was the 22uF 35v and the 10uF 10v caps off of the power board.
So i went for caps made by Yageo, Vishay (low esr) and Jianghai to fill the gaps.
I haven't... -
Re: Newbie with Viewsonic VX2835WM Problem
Hi Guys,
Thanks for all your advice and tips so far and no i haven't blown myself up yet!
To be honest the past week or so i have been reading over various articles and looking at youtube clips on testing boards and i have to say i am still pretty clueless about the mechanics of it all.
How exactly do you set the dam thing up to test with your multimeter?
Please i know this may seem like a dumb question but i am really an electrical novice.
I have both the power board and main board out of the case and...Leave a comment:
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Re: Newbie with Viewsonic VX2835WM Problem
Thanks for the tips Mariushm,
I didn't see your post before i went shopping but ended up buying the second one you recommended so i guess great minds think alike!
This is a slow work in progress as you can tell with my infrequent posting but i hope to be able to get some testing done this week.
After another careful look at the board and some additional capacitor reading i noticed i have at least 4 caps with mushroomed tops which will need to be replaced on the main board and possibly one on the power board. Of course...Leave a comment:
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Re: Newbie with Viewsonic VX2835WM Problem
Hi Guys,
Thanks for taking the time to look at my pics, i can't believe you think it could be a candidate for saving, i really thought it was done.
I am off to buy a multimeter today so i can test the board and some test circuit boards to practice my soldering.
I have to admit i have never tested anything electrical so i am a complete novice as far as how i go about it.
If anyone gets the chance i have included two links below of multimeters that are at my local electrical shop - note the ones which have the...Leave a comment:
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Re: Newbie with Viewsonic VX2835WM Problem
Hi Guys,
Well i managed to take apart the monitor without any breakages and went about photographing the appropriate parts today when i had some good light.
I uploaded 8 photos, which i hope isn't over kill, i just want you guys to get a good look at what i am seeing.
The first thing i noticed (and i am a novice at this) was the distinct discolouration on the power board and the definite areas that looked burnt - black/brown with some sort of residue there. When you held it up it also smelt pretty burnt as well....Leave a comment:
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Newbie with Viewsonic VX2835WM Problem
Hi All,
I just wanted to introduce myself and highlight my problem.
I bought my vx2835 about 5 years ago and it has provided me with a trouble free life until the past few months.
I noticed that it wouldn't power up (no led lights) from start up and i would have to unplug the cable and plug it into a different socket to get it to turn on. It has been doing this intermittently for the past 2 months or so. However 2 days ago it wouldn't power on at all and there was a slight white flicker coming from the screen, i really thought that was it. I tried different sockets and cables...
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