Time Warp
Williams, 1979You're currently viewing posts by Pinsider waffen_spain.
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Hi folks!
Im bringing back to life a lovely Time Warp, after solving the typical corrosion at MPU, pin now works great.
Im about to replace GI bulbs with led, but after burning my fingers with a red hot bulb, Ive noticed GI voltage is over 8 volts...
Since It my firts time with a sys6 PS, im asking for your infinite knowledge, do I have a PS problem here?
Bulbs and leds gets lava hot, but bulbs still work after decades....
Thanks for the ultrafast assistance!
Since the fuses are not marked, and the manual at ipdb says nothing about fuses, Ive disconnected all of them, but GI stays on 
Transformer is noisy and vibrates...
As you can see al fuses are off but gi works
15587307254598794000080702125274 (resized).jpgTesting is done.
Yellow wire from transfo to yellow at fuse holder 8.5v
Yellow wire from transfo to yellow wire at the no fused connector 8.5v
Quoted from Cheddar:Is the transformer hi-tapped?
Im not sure what means "hi.tapped"
Quoted from Inkochnito:Also put in fuses in line with the AC connection for the bridge rectifiers in the back box (just under the power supply).
You can also use a Bridge Board (http://home.kpn.nl/p.koch3/) and get rid of that BIG capacitor.
Just do some reading on my website link.
Peter
Man that is some serious tutorial, Im going to check It and mod my pin, thanks for sharing!
Quoted from Schwaggs:Agree, that looks like 220V wiring.
However, to know if your setup is high-tapped, you need to see which terminals those wires are soldered onto the transformer.
Somebody has been here, I see solder on the transfo.
Looks like wiring needs to be resoldered, but I dont know if its correct.
15590715016559121492584685355770 (resized).jpg
Comparing the wiring with a pic Ive found from a sys6, looks like I need to change the wiring.
wms-15b-6797_b (resized).jpgQuoted from Schwaggs:If you have a machine in an area with low voltage, bad wiring, etc, the performance of the pops can be decreased, and could cause resets, etc. You can change the wiring to bump up the voltages ~10% to bring back performance. Seeing as his voltages are high, it makes sense to see if someone high-tapped the transformer.
Problem solved, moved brown-red wires from 6 to 8, and black-yellow from 2-3 to 4 at the transfo input.
Now I have 6.8 to 7 volts at bulbs, I have to test coils but looks ok.
Thank you all guys!!
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Austin, TX