Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: stillvip187 on August 22, 2010, 11:51:05 pm

Title: Nanao MS8-26SU
Post by: stillvip187 on August 22, 2010, 11:51:05 pm
Nanao MS8-26SU

hi all i have a Nanao MS8-26SU and this is what its doing can anyone give me any ideas on how to fix it thank you


Nanao MS8-26SU (http://www.youtube.com/watch?v=BNQMloRLWY4#)
Nanao MS8-26SU (http://www.youtube.com/watch?v=IiXzvjuokPw#) :banghead:
Title: Re: Nanao MS8-26SU
Post by: Mikezilla on August 23, 2010, 01:13:35 pm
Hm. For some reason that wont load for me. Can you explain what is happening? I have that same monitor, maybe I can help you out.
Title: Re: Nanao MS8-26SU
Post by: Kevin Mullins on August 23, 2010, 02:01:28 pm
Quote from: Mikezilla on August 23, 2010, 01:13:35 pm
Hm. For some reason that wont load for me. Can you explain what is happening? I have that same monitor, maybe I can help you out.

It's on the verge of vertical collapse, only about three inches of vertical image in the middle of the screen.
http://img801.imageshack.us/i/ki2.jpg/ (http://img801.imageshack.us/i/ki2.jpg/)
Title: Re: Nanao MS8-26SU
Post by: Mikezilla on August 23, 2010, 03:22:14 pm
Weird, that image wont load either. I am at work, so that might have something to do with it. Thanks for trying to give me a link Kevin. Could it be a sync issue? Mine was having a little of the same problem. I had to resolder the sync on the board. Had to re-do a couple of traces as well, but now it works fine. Now Im trying to sell it lol.  :laugh:
Title: Re: Nanao MS8-26SU
Post by: qrz on August 23, 2010, 06:31:54 pm
resolder the pins on the vert output IC.

given time, thermal cycling will degrade the connections.
Title: Re: Nanao MS8-26SU
Post by: stillvip187 on August 23, 2010, 06:38:01 pm
Quote from: Mikezilla on August 23, 2010, 03:22:14 pm
Weird, that image wont load either. I am at work, so that might have something to do with it. Thanks for trying to give me a link Kevin. Could it be a sync issue? Mine was having a little of the same problem. I had to resolder the sync on the board. Had to re-do a couple of traces as well, but now it works fine. Now Im trying to sell it lol.  :laugh:


can you piont out were to resolder

http://img828.imageshack.us/i/nanaoms826sumainboardca.jpg/ (http://img828.imageshack.us/i/nanaoms826sumainboardca.jpg/)
Title: Re: Nanao MS8-26SU
Post by: stillvip187 on August 23, 2010, 06:39:05 pm
Quote from: Mikezilla on August 23, 2010, 03:22:14 pm
Weird, that image wont load either. I am at work, so that might have something to do with it. Thanks for trying to give me a link Kevin. Could it be a sync issue? Mine was having a little of the same problem. I had to resolder the sync on the board. Had to re-do a couple of traces as well, but now it works fine. Now Im trying to sell it lol.  :laugh:


can you piont out were to resolder

http://img828.imageshack.us/i/nanaoms826sumainboardca.jpg/ (http://img828.imageshack.us/i/nanaoms826sumainboardca.jpg/)
Title: Re: Nanao MS8-26SU
Post by: grantspain on August 23, 2010, 06:45:09 pm
i thought i had already answered this,this is a very common fault on ms8 chassis
there is a capacitor and a resistor that crap out-i think if the cap goes first you get partial collapse

Change C433 R433
If full vertical frame collapse then also change R436 Q401 Q402 C437

note it is worth checking what qrz has already said and you should check out your yoke readings/connectors
Title: Re: Nanao MS8-26SU
Post by: Mikezilla on August 24, 2010, 01:17:31 pm
Before you do the soldering, I would do what grantspain said. That could be it, because my problem was a little different, the image finally loaded for me lol.

Do what he said first.