Sanyo-20EZ WTF?! is there anything left to do?! FML...

DeLoreanRide

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Sanyo-20EZ WTF?! is there anything left to do?! FML...

Ok so here's what I've done to this monitor:
New Horizontal Output Transistor
Full Cap Kit
New Filter cap
New IC601
New Q901
New Neck board POT kit
New adjustment POT kit
New B+ Voltage POT
New Flyback Transformer

and I'm STILL GETTING NOTHING!

The B+ Voltage is pegged at 164 volts! It will not move. The high voltage kicks in for a second then goes away.

Please; anyone; with ANY idea please let me know. This thing is KILLING ME!

EDIT: Also, just so we're clear; the monitor does not have to be in the game to test the B+ voltage right? Like if I'm testing the monitor with out a signal from the game board with the monitor sitting on a table plugged into the wall, I should still be able to test this thing right?
 
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the monitor HAS to be plugged into the Isolation transformer in the bottom of the cabinet. You'll be damn lucky if you didn;t just badly damage that thing.
 
No shit. Unless you have one of the Atari version 20EZ's that ran on 120vac, you most likely have the Nintendo version that runs on 100vac, and requires isolation through it's transformer power supply.

If you plugged it directly into a wall outlet, then I'm not surprised you are having problems...
 
F*** *** **** ***** ***in ****!!!

So what is the first thing to go from plugging it in the wall if you plug it into the game and it doesn't work?
 
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They should have used a non-standard power plug on these things. I wonder how many Sanyos have been killed by being plugged directly into the wall.
 
Wait... you live in Disney World?

I work in the Ride and Show Design and Engineering Department at Disney and I live .2 miles from Disney Property.


Anyway, now that I've got it plugged into the transformer in the bottom of the cabinet; I'm getting a solid 145volts at B+ voltage. Still no change though when the POT moves.

Think I fried the IC601?

Or the Q901?
 
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Is there any way to test a capacitor?

I guess I'll just try to replace the 600 section again and see what happens. Any other recommendations?
 
I'd start with the recifying diodes and move your way down the power supply circuit from there.

Actually; if you go to measure your B+, meter for AC voltage instead of DC. If there's anything there its not rectifying.
 
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