Sanyo 20EZ Waves

Not to long ago I had a working monitor. I accidentally cracked the neck board with my head. After that I just got a blue horizontal line in the middle of the screen that was clearly caused by the damaged neckboard. It wasn't a Sanyo 20 ez but...have you reflowed ALL the solder joints on the picture tube socket board? Is it possible that the service switch is faulty?
 
vicjw66 said:
Not to long ago I had a working monitor. I accidentally cracked the neck board with my head. After that I just got a blue horizontal line in the middle of the screen that was clearly caused by the damaged neckboard. It wasn't a Sanyo 20 ez but...have you reflowed ALL the solder joints on the picture tube socket board? Is it possible that the service switch is faulty?
Click to expand...

The service switch does do something when i switch it. It goes from RGB horizontal line (on a vertically oriented monitor --- so really a vertical line) to nothing. The line is visible when the switch is in the normal position. When the monitor was "sometimes working", the service switch would show a vertical line on the vertically oriented monitor, so the opposite of what i'm getting now.

I haven't reflowed more than 2 or 3 solder joints on the neckboard. It looks pretty good, and hadn't even taken it off the neck until the problem was already there. I have reflowed and cleaned probably 100 of the solder points on the main PCB.
 
I received my new chassis in the mail tonight.

Everything is installed and I was very careful putting it in. However, when I turn on the power, I don't get any response from the monitor. The B+ voltage goes up to 142, and it's at it's middle position. I don't hear any crackling or high pitch noises that are indicative of a monitor that's on and isn't getting a picture. What should I check?
 
barrysfarm said:
I received my new chassis in the mail tonight.

Everything is installed and I was very careful putting it in. However, when I turn on the power, I don't get any response from the monitor. The B+ voltage goes up to 142, and it's at it's middle position. I don't hear any crackling or high pitch noises that are indicative of a monitor that's on and isn't getting a picture. What should I check?
Click to expand...

I would suspect that you are in HV shutdown. Can you get the B+ down to where it should be? 108vdc
 
Pull the B+ pot and test it through it's range with a meter. If it tests good, suspect Q901 to be defective or IC601 to be defective.
 
After taking the chassis out, I noticed 3 hairline cracks in the PCB. They are between 1-3 inches long. Most of the traces in these cracks were clearly broken. I've emailed the seller.

Does anyone know anyone in the central illinois area who may have an extra sanyo they'd be willing to sell me? At this point, I'd gladly buy a whole new monitor from someone.

I know that I'd need an inverter board, but do the Happ Vision Pro's physically fit in a Nintendo Cabinet? Does the housing fit? I'd be more than happy to buy one from arcadeshop if I knew it was going to fit.
 
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