Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: Shogun on September 09, 2004, 01:42:09 pm

Title: Monitor is scrambled and shuts off
Post by: Shogun on September 09, 2004, 01:42:09 pm

I'm looking into buying this cab but the seller says the monitor when turned on is all scrambled and then turns off after a few minutes. I am not knowledgeable at all in this area but if it something such as a power supply issue or a simple repair then I may buy the cab and get the monitor fixed. Does anyone have any idea of what may be causing these symptoms?

Title: Re:Monitor is scrambled and shuts off
Post by: Shogun on September 10, 2004, 02:04:05 am

Nobody has had anything even remotely similar happen?

Title: Re:Monitor is scrambled and shuts off
Post by: Ken Layton on September 10, 2004, 03:46:23 am

The monitor in all likelihood needs a capkit.

Title: Re:Monitor is scrambled and shuts off
Post by: Shogun on September 10, 2004, 09:57:08 pm

Further description of the problem:

"It was scrabbled with lines of color and black. after a few seconds it goes to a single white line in the middle then off."

If it does need a cap kit is this a difficult problem to solve?

Title: Re:Monitor is scrambled and shuts off
Post by: menace on September 11, 2004, 08:08:53 am

sounds like a vertical deflection failure--you may have to replace some IC's--not that difficult but does require some skill.

Title: Re:Monitor is scrambled and shuts off
Post by: Ken Layton on September 11, 2004, 11:30:21 am

And the make & model of the monitor is....????

Title: Re:Monitor is scrambled and shuts off
Post by: Shogun on September 11, 2004, 08:46:53 pm

Nanao Duel 8 Series
Model MS8

I believe thats the stock monitor for an egret.

heres a pic from another website:
(http://www.solvalou.com/images/arcade/egret/monitor2.jpg)

Title: Re:Monitor is scrambled and shuts off
Post by: Shogun on September 11, 2004, 08:48:48 pm

ebay pic:

(http://i20.ebayimg.com/03/i/02/6a/ed/35_1_b.JPG)

Title: Re:Monitor is scrambled and shuts off
Post by: Ken Layton on September 12, 2004, 01:32:22 am

If it's a model MS8-26U then both resistor R433 (2.2k ohm 1/4 watt) and capacitor C433 (10 uf @ 50 volt) are bad.

If it's a model MS8-26A then C431 (33 uf @ 160 volt), C432 (33 uf @ 160 volt), and C433 (10 uf @ 50 volt) are bad.