Sanyo EZ20 problem - white screen; not a board problem.

Vectorman

Well-known member

Donor 2011
Joined
Sep 20, 2005
Messages
1,567
Reaction score
132
Location
McLean, Illinois
Sanyo EZ20 problem - white screen; not a board problem.

Guys,

I've got a difficult situation where I sold and shipped (to upstate NY) a vs. Super Mario Bros, and now it has a problem and I'm having trouble getting it fixed over the phone.

The problem is that the monitor is displaying just solid white. The game is playing (blind) - you can hear it. The monitor was rebuilt by me before shipping. The connections APPEAR to be good between monitor and boards (although I don't know this for certain).

I've sent new power supply and new tested / good PCB, just to rule them out. Same problem.

What could have happened in shipping to the monitor to give it white screen / no signal? Oh, and it is not using the inverter board. The signal wires are wired directly to the monitor chassis.

Any help you could provide would be greatly appreciated.

Thanks!!!
John
 
solid wite line sounds like vertical collaps to me.

cold solder joints or broke pads on the vertical transisters is my guess.

or the service switch was fliped on the monitor chassis.

Peace
Buffett
 
solid wite line sounds like vertical collaps to me.

cold solder joints or broke pads on the vertical transisters is my guess.

or the service switch was fliped on the monitor chassis.

Peace
Buffett

lol, he has a whole screen.. its just white...
 
UPDATE:

I did have the customer check the flyback brightness - not the problem.

I'm fairly convinced it's a bad connection from the game boards, and it must be a cold solder joint on the 6 pin connector. But I've had him wiggle it and the picture doesn't show up. He said it goes blank (black) but doesn't show the game.

I'm really running out of ideas. I can only think of a couple things to do:

1) find someone in his area (saratoga springs, ny) from KLOV to go and figure it out (and I pay them handsomely).

2) ship him another monitor and talk he through swapping them.

I'm still very interested in any advice any of you might have.

Thanks,
John
 
I have a K4600 doing this. Prior owners said it played before they moved houses, but not after the trip. White screen, not collapsed as far as I can tell. Just pulled it last night to check it out, curious to see what the issue was with yours since they are both apparently moving related.
 
Back
Top Bottom