Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: flashdog on March 06, 2007, 05:46:27 pm

Title: Nanao MS8-29FSG no vertical deflection
Post by: flashdog on March 06, 2007, 05:46:27 pm

Don't want to just throw parts at it, any help greatly appreciated. No schematic !?!?.

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: Ken Layton on March 06, 2007, 06:11:22 pm

Jomac in Australia is the Nanao expert:

www.jomac.net.au/mon.htm

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: flashdog on March 06, 2007, 11:27:34 pm

Australia is a bit far , lol , his site says to post at STJ and I don't have a subscription.
  fdog.

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: Ken Layton on March 06, 2007, 11:55:26 pm

Just email him. He's a member of this forum under the user name of "Jomac".

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: flashdog on March 07, 2007, 07:52:10 pm

He sent me to STJ , still have problem. Thanks.

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: Ken Layton on March 08, 2007, 12:04:24 am

He sees that problem all the time and has the cure. Tell him you don't have a subscription to Star Tech (it's WAY overpriced IMO).


Edit:

Now I see why he sent you to STJ. He wrote a repair guide for several of these monitor models in conjunction with STJ and they're selling it for $50. Pity too because it has the information/repair you're looking for.

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: grantspain on March 08, 2007, 03:42:33 pm

i have an ms8 schem,i will have a look to see if i can id the likely problems but i would be looking at bad solder joints/faulty deflection ic or missing 25volts to deflection ic

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: modessitt on March 08, 2007, 06:37:53 pm

I had a similar problem with a Nanao MS8-26SU which I posted in this thread:

http://forum.arcadecontrols.com/index.php?topic=62428.0

Jomac was able to help me and I posted the info.  It's probably not going to be the exact same parts for helping you fix yours, but it may point you to the right area.  The cap kit was the first thing I had done, which didn't fix it, and it turned out to be a burnt resistor.

Good Luck!

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: flashdog on March 13, 2007, 12:00:07 am

I went ahead and spent the $50 for STJ ultimate monitor repair. Looks like a part order is next , will post when its fixed.

Title: Re: Nanao MS8-29FSG no vertical deflection
Post by: flashdog on March 24, 2007, 01:06:21 am

Replaced, IC 401 {LA7832}
Replaced, C432  {100uf  35v}
Replaced, R432  {4.7 ohm 1/2 w}

It lives!