G07 input voltage-

cal50

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Quick question-

What is the proper voltage for the 2 pin power connector for input voltage for an Electrochrome G07 ? This is the 2 pin connector from the flyback to the chassis input.

(Guessing it's suppose to be 120 AC)
 
120vac approximately supplied thru an isolation transformer.....



Thanks.
My iso transformer is sick......

Any "best place" for a replacement?

I do have two proper legs putting out voltage for the marque light and the two for my G07 is no where close to 120 VAC.

Is there any injustice using the "good" legs from the marque light and just moving the G07 lugs from the bad section of the iso transformer?
 
Only the monitor should be connected to the output of isolation transformer.

Bob Roberts sells new isolation transformers.
 
Only the monitor should be connected to the output of isolation transformer.

Bob Roberts sells new isolation transformers.



That is interesting because my Dragon's Lair has the marque light tapped off the opposite side of the same transformer. The lugs for the monitor power are less than 60 VAC so no power to monitor chassis (neck tube glow is out and monitor not lighting up).

This is a factory original game. The transformers are cheap but it I but a new one I was going to wire it the same as what I have now unless the replacement does not have extra power lugs. Maybe someone added the marque light to the wrong place?
 
Some transformers do double duty like yours. The Williams games also have the marquee and monitor power come out of the same side of iso.

What Ken meant was, don't have a switcher or something connected to the same output lugs as the monitor...
 
Some transformers do double duty like yours. The Williams games also have the marquee and monitor power come out of the same side of iso.

What Ken meant was, don't have a switcher or something connected to the same output lugs as the monitor...


Thanks guys.
Next job is top get the machine to boot up-
 
The lugs for the monitor power are less than 60 VAC so no power to monitor chassis (neck tube glow is out and monitor not lighting up).

What is the exact voltage....depending on how you're reading it.....you will only see 60 volts (give or take...it's unregulated) on each lug.


Also....I don't understand this...
"This is the 2 pin connector from the flyback to the chassis input."


Edward
 
What is the exact voltage....depending on how you're reading it.....you will only see 60 volts (give or take...it's unregulated) on each lug.


Also....I don't understand this...
"This is the 2 pin connector from the flyback to the chassis input."


Edward



It's connector P901. The two pin power input to the Go7 chassis.
One side is 58 VAC and the other is 28VAC.
 
It's connector P901. The two pin power input to the Go7 chassis.
One side is 58 VAC and the other is 28VAC.

You're supposed to measure the AC voltage between both sides, not between one side and ground...
 
and the two pin connector has nothing to do with the flyback.

Edward

Let me rephrase that-

The 2 pin connector that supplies power to the chassis. Incorrect input voltage means no flyback output or heater glow.
 
Let me rephrase that-

The 2 pin connector that supplies power to the chassis. Incorrect input voltage means no flyback output or heater glow.

Technically, it would mean improper rectification voltage (B+) so that the high voltage section never turns on....
 
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