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#71
Re: The VB Glitchy Display Problem
Posted on: 2010/8/13 8:10
PVB Elite
Joined 2003/7/25
USA
1507 Posts
PVBCC 1stCoderContributor#3 PosterHOTY09 EntryLong Time User (15 Years) App CoderPVBCC 2010 EntryPVBCC 2013 Entry
I think he's laughing because the wire is a kinda big. It'd be pretty tough to get anything besides 30AWG or smaller (since you need 30 wires in that tight space).

DogP
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#72
Re: The VB Glitchy Display Problem
Posted on: 2010/8/13 16:25
VUE(xpert)
Joined 2010/2/14
USA
333 Posts
10+ Game RatingsLong Time User (10 Years)
My DB-15 cables have 28AWG wire so I really don't see the problem.
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#73
Re: The VB Glitchy Display Problem
Posted on: 2010/8/14 5:20
VUE(xpert)
Joined 2010/2/14
USA
333 Posts
10+ Game RatingsLong Time User (10 Years)
Well I fixed both of my displays. I used the microscope again and a really nice Weller soldering iron with a fine tip (for SMD work). Maybe it was overkill, sure, but the tip of the iron was almost the exact width of one trace, so I was able to run my iron (and the wick) all the way across each trace without lifting anything. Another thing I noticed is the wick sucked up some of the melted adhesive and generally helped to clean off the traces. Without that I'm sure the problem would still be there. If I had to do this again I would for SURE use the NaOH method to clean off the adhesive. It's just too much trouble and too hard to get good connections without cleaning off some of the adhesive. Perhaps I just didn't do a good enough job with the solder ball in the first place, I don't know.

So now I just have to get a can of compressed air to clean off the mirrors, displays, internals and get some philips screws to replace the VB security screws.

I have a quick question. Is there any way to lubricate the gearing mechanism for the IPD? Mine seems very sticky/squeaky and it doesn't like to be moved in fine adjustments. It's not a huge deal but it's one of those peace of mind things.
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#74
Re: The VB Glitchy Display Problem
Posted on: 2010/8/14 5:49
PVB Elite
Joined 2003/7/25
USA
1507 Posts
PVBCC 1stCoderContributor#3 PosterHOTY09 EntryLong Time User (15 Years) App CoderPVBCC 2010 EntryPVBCC 2013 Entry
Nice... glad you got it working. For lubricating the IPD, IIRC they used a white lithium grease... you could probably use the same. IIRC it's all plastic, so you should make sure it's plastic safe.

DogP
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#75
Re: The VB Glitchy Display Problem
Posted on: 2010/10/17 23:04
Nintendoid!
Joined 2004/5/28
219 Posts
Long Time User (15 Years)
hi Guys,

i still need help with two Displays.
Who can help me out?

thanks
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#76
Re: The VB Glitchy Display Problem
Posted on: 2010/10/18 3:41
VUE(xpert)
Joined 2006/9/29
USA
267 Posts
CoderLong Time User (13 Years) PVBCC 2010 3rd
Sorry this doesn't solve your problem Fire-WSP, but thanks so much for bumping the thread! The left display on the Virtual Boy that I use most frequently went out AGAIN a couple weeks ago, and I was trying to fix it last night. Since the oven method had never really worked for me, I was trying putting a paperclip across the ribbon cable where it joins the display and heating it with my soldering iron to remelt the plastic to the board. It was only sort of working... the display I had "fixed" still had red lines... (But at least I got rid of the image ghosting.) I had seen DogP's NaOH method, but I didn't really want to risk my displays by having to rinse the stuff off, plus I'd have to go buy the stuff and some way to heat it since I'm sure use of our oven for that would not have been approved. After this thread was bumped, I crawled it really quick for solutions and saw mbuchman's video and well... I'm a believer in it now! The left eye display came out working flawlessly on the first try. The right display took two tries, and a few lines are dead, but it was that way before I started, so at least I'm no worse off. (I think that some of the LEDs might just be fried.)

Since I've done this now, I can give some pointers: the iron doesn't even need to be fine tipped, I just used the stock tip that came on my Aoyue 937+. (Which is an iron I highly recommend BTW.) As long as you let the solder blob do the work, don't touch the cable with your iron, and only move the iron parallel to the cable you should be fine. The temp I set my iron for was 300°C, or about 550°F. I found that "scrubbing" the solder blob back and forth from the board up onto the cable a bit worked the best for removing the plastic coating. (Note that when I say scrubbing, I was not letting my iron tip touch the material, let the liquid do all the work. I'm sure if you actually scrubbed with the iron you would damage the copper.) They did come out looking pretty ugly, but as long as this fixes the problem for good, I'm super happy.

One question though: should I worry about cleaning off the flux from the solder? Will flux that's left on there eat through the copper eventually?
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#77
Re: The VB Glitchy Display Problem
Posted on: 2010/11/16 21:52
VUE(xpert)
Joined 2010/10/22
Sweden
345 Posts
ContributorLong Time User (9 Years) 30+ Game Ratings
I have white lines coming in mostly on the left eye but a little on the right one as well. That oven trick sounds very... dangerous. But I have no technical skills... One odd thing is that some games have the problem more than others.
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#78
Re: The VB Glitchy Display Problem
Posted on: 2010/11/17 19:48
VUE(xpert)
Joined 2010/10/22
Sweden
345 Posts
ContributorLong Time User (9 Years) 30+ Game Ratings
Today the lines are gone...... Weird.
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#79
Re: The VB Glitchy Display Problem
Posted on: 2011/2/17 19:00
PVB Elite
Joined 2010/1/5
Sweden
560 Posts
Long Time User (10 Years) Donator30+ Game Ratings
Protoman85, no that's not very weird, the connection is somewhere in between good and bad and will continue doing that until it stays bad.

Something very weird is that you had white lines - something that probably no other VB owner has ever seen... ;-)




I soldered all four display PCB:s in my units recently, no solder ball, just melted some flux core solder on top of the flex cable edge at about 380 degrees Centigrades, plastic kind of melted/vanished and then I slid the tip along the cleared metal strip over to the PCB - and only in this direction so that the wires wouldn't bend in the wrong direction.
After all wires were done I washed the flux off with alcohol, being careful not to get anything in any holes (not in the clear plastic cover over the led ramp).

If there was any clogged together strips I'd just put some solder on the iron and slide it along to clear it. Had to use solder wick at one point as well. Before closing up I measured the resistance between each pin on the connector and the attaching surface on the display PCB to make sure I had a good connection.
When done none of them had more than 0.6 Ohms, when getting as much as 2-3 Ohm on some pins it helped cleaning and reattaching the flex cable on the main PCB - so this can also be a source for problems.
Testing was more painful than soldering them actually. ;-)

All in all things went very smooth, I have two fully working units now, time to make that link-cable...
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#80
Re: The VB Glitchy Display Problem
Posted on: 2011/4/12 21:10
VB Gamer
Joined 2011/4/12
13 Posts
Long Time User (8 Years)
Hi everyone.

I bought a used Virtual Boy with six games a week ago, but to my dismay, I started seeing the dreaded "horizontal lines" on my display yesterday. The problem seems to be with the right display. While I wait for a 4.5mm gamebit to show up in the mail, I was wondering if anyone here has found a quick fix for this issue that doesn't involve opening the system. Something along the lines of the Xbox 360 "towel trick", perhaps?

Thanks.
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