What model is this and how do I fix it?

[philt80]

Purchased a parts cab for it's monitor to replace the dead one in my ms pac cab and am unsure what is going on with it. Occasionally I plug it in and it displays the picture just fine...other times(most of the time) it displays the "lightning bolt" picture as seen below. I have tried adjusting the Horizontal Hold which does nothing to correct the picture.

What happens most of the time when powering it up:

Working after turning off and on several times:

Control board:

Anyone have any ideas? Also, the only markings on this monitor are in japanese so I am unsure what model it is...

 

[modessitt]

Looks like a Sanwa. Start by replacing all the caps...

 

[rikitheshadow]

Order yourself a cap kit from Bob Roberts. Guy has fair prices and generally has anything you need to fix a monitor with lol.

www.therealbobroberts.net

He doesn't have any fancy online ordering site, just send him an email and when he confirms your order send a check or money order via mail. He does it the old way as he just runs his business out of his home. Nice guy though, will occasionally cross ship orders.

 

[philt80]

Thanks for the suggestions...
I have ordered from Bob Roberts before...great guy indeed

 

[modessitt]

Don't know how you're going to order a cap kit without knowing the exact model. I just listed the manufacturer it most resembles.

You may need to just make your own cap list...

 

[philt80]

Yeah...I'll likely make that a weekend project one of these weekends. The thing has a ton of capacitors so I imagine I'll be busy on this one

 

[philt80]

For anyone who may stumble across this post in the future searching for a similar problem, I wanted to post an update...
Even after a cap kit, I had the same issue with the lightning bolt effect...The solution to my problem was replacing the Horizontal Hold potentiometer.

Also...I finally identified this monitor as a Sanwa PM1718. Schematics can be found in the Boomer Rangr manual as found at: http://www.crazykong.com/manuals/BoomerRangr.man.pdf

Bob Roberts now has a listing for a cap kit for those unfortunate enough to run into this monster(23 capacitors)