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Mr Do

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Anyone can identify this and supply schematics or repair info?
 

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Looks like an arachnid power supply... looks like mine in my super 6 I do believe. Ken Kayton is the man to ask.
 
IF I WAS A GUESSING MAN i would guess this is from an ad6000 or 6300 most likely..

what does it do/not do? If you have nothing, doa, but fuse is good...

those are very well known for solder joint and trace issues at the rectifier. The fix was to install a new rectifier(because its legs are longer) as high up off of the board as possible, reinforce the traces with something like desoldering braid and solder the hell out of it, and of course add a heat sink. Even if it looks good, desolder it, check it, redo it. It helps to scrape back the solder mask a little so you can really lay on some solder. Its easy to test the rectifier with a meter if youre careful, up and running the ac power in should be close to the DC power coming out. SOmetimes checking back on the trae a little is the only way to find which trace is dropping the voltage.

If your +5 is like +13 then replace the 5 volt regulator.

If it works but your darthead lights dont dim when the game is not in play mode, then replace the triac. Its mounted to the bottom of the supply.
 
The fuse next to the on/off switch blow when the unit is turned on.
So I removed the top circuit board and the fuse does not blow.

The wires coming from the base is : one white 5v ac and one red is 13v ac.
Which tabs should they mount too. Maybe the person who had it before me reversed them?
 

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thats a good question and hell if i remember. THe way i remember it as whites are one voltage, oranges are another voltage... any clues silkscreened next to those terminals on the pcb?

At this point i would pull the rectifier and check it, im willing to bet its dead shorted between ac and dc..
 
Changed the bridge rectifier since it was bad. Fuse DOES NOT BLOW.
I get the 21 volts out of the connector, but no 5volts, and the 13 volts measures 1 volt.
What's next?


There is the big cap that is 8900uf 25v. Can I use a 12,000 25v?
 
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