go7 question

scaboo4u

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I found a lot of info on these, but nothing to answer my issue.

I have a 19 go7 that was working perfect. I sold the cab and moved it from one place to another about 10 min away. Got it to my buddies house moved it in side. We let it sit for about 30min plugged it in and game coins up and plays blind.
I was able to check the power before the board reads 120. eye balled the fuse that is soldered to the board looks good but could not get to it with a meter while I was there.
Any insight until I can go over and pull the chassis.
Oh yea nothing popped or sparked. No burn smells, nothing clicking, no glow,nothing oozing, nothing blown that I can see.
Liked I said worked fine moved it now dead.
thanks allen
 
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1) Obviously look over everything to see if a connection came loose somewhere.

2) There are two fuses on the chassis - a large one and a small one. You can't just eyeball it to assume it's okay.

3) if the small fuse is blown, the filter cap may have a charge, and you'll get a pretty big POP when you touch both sides of that fuse together.

4) If the monitor hasn't been rebuilt recently, it is common to have a monitor work just fine one moment and not the next, especially after a move.

5) Check to see what your B+ is reading...
 
Ok here is an update. I didn't take time to check anything on the chassis other than making sure everything is connected. I swapped it with a know working chassis out of a Ms pacman and got the same thing. Game starts up and all is good except no video.
Ok just when you think it can't get worse, I swap entire monitor with a wells 4903 from another 100% working cab. Now nothing from the 4903 and notta from the board.
I double checked the board in another cab and dead. Somebody PLEASE tell me WHAT in the HELL is going on.
 
The first g07 was with a 60-1 that worked for 2 weeks until moved
The second g07 was out of my Ms pacman
The wg4903 was out of my vigilante

allen
 
Now that I am up to speed, check any fuses that you have down around the power supply. If the 60-1 has quit working as you have said, I wonder if it is getting power.
 
IIRC it flashes orange while it is loading (initializing)

Yea but after a minute or so it used to flash green it stays orange.
I don't want to hook the 60-1 in up to anything else until I have a decent idea of what is going on.

Also can the g07 chassis be tested with out a tube connected?
 
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Yea but after a minute or so it used to flash green it stays orange.
I don't want to hook the 60-1 in up to anything else until I have a decent idea of what is going on.

Also can the g07 chassis be tested with out a tube connected?

Also with the first 2 g07 monitors game would boot, and coin up and play just blind

There are some people who test G07's without the tube hooked up, but definitely not me.

Have you verified that you have 120vac going into the G07's?
 
There are some people who test G07's without the tube hooked up, but definitely not me.

Have you verified that you have 120vac going into the G07's?

I'm getting 122. something at the plug before the chassis
I haven't checked anything on the chassis except connections
 
chase the two ac input wires to the chassis deflection board. verify that the 122 something that you are inputting is getting to the chassis. I have seen many bad two pin .093 connectors, where the voltage doesn't pass.
 
chase the two ac input wires to the chassis deflection board. verify that the 122 something that you are inputting is getting to the chassis. I have seen many bad two pin .093 connectors, where the voltage doesn't pass.

Ok I will do that. Just not tonite maybe in about 12hrs.
I might screw something else up, so I probably need a fresh start later.

THANKS VERY MUCH FOR YOUR HELP SO FAR.
ALLEN
 
Yes power is good but I'm getting 1 green led and 1 flashing orange led.

You don't have the dip switches set wrong, do you? You shouldn't have an orange LED blinking after it's loaded unless you're booting to the test menu.

And if you had it set to VGA for some reason, the wrong video signal might have overloaded the horizontal oscillator of the chassis.

Perhaps the guy who bought it from you was fiddling with them and screwed something up (maybe even put the edge connector on backwards), and you may be testing it assuming it's still set the way you gave it to him...
 
You don't have the dip switches set wrong, do you? You shouldn't have an orange LED blinking after it's loaded unless you're booting to the test menu.

And if you had it set to VGA for some reason, the wrong video signal might have overloaded the horizontal oscillator of the chassis.

Perhaps the guy who bought it from you was fiddling with them and screwed something up (maybe even put the edge connector on backwards), and you may be testing it assuming it's still set the way you gave it to him...

I open to anything at this point. I'm picking up the cab in the morning and gonna go through it again 1 wire at a time. I know all switches are the same.
I want to thank you for your help also.

allen
 
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