older than time PSU for automotive test machine

[scampo77]

Re: older than time PSU for automotive test machine

im sorry i realize anyone was ansdwering my post, out of desperation i checked back here to see it has lit up like a christmas tree. here are some pictures. i did get a ATX power supply as suggested and i patched it on based on colors mostly.

still all i can get is a flicker on the old style CRT screen then nothing.

on the old psu im getting weird and unusual readings like blue is -10, im guessing its a safe bet thats supposed to be -12.

[scampo77]

Re: older than time PSU for automotive test machine

measurments from my old PSU

red 5.2
white -4.5
blue -10.3
orange .2
yellow 12.2

the new ATX psu

red 5.25
white -5
blue -11.7
orange 3.3
yellow 12.1

[seanc]

Re: older than time PSU for automotive test machine

Don't suppose you can hook a standard CRT/LCD up to that machine?

[scampo77]

Re: older than time PSU for automotive test machine

yes i tried and nothing. i hooked up a lcd moniter it has the same vga plug.

[370forlife]

Re: older than time PSU for automotive test machine

The orange wire is the problem. The orange on an ATX psu is 3.3v, the orange on a AT psu is for the power good. Connect the gray wire from the 20 pin connector to the orange wire of the AT connector.

[scampo77]

Re: older than time PSU for automotive test machine

the grey wire is 5.25 is that correct?

[370forlife]

Re: older than time PSU for automotive test machine

Yup, the power good signal on ATX and AT psu's should be about 5v. That might be why your original one wouldn't power it on, as you said it was reading .2v. 3.3v is too low and the motherboard will assume it's the power supply saying that something is wrong with it.

[PCBONEZ]

Re: older than time PSU for automotive test machine

AT
http://www.allpinouts.org/index.php/...herboard_Power

20-pin ATX
http://www.allpinouts.org/index.php/..._Pin_(ver._1.x)

24-pin ATX
http://pinouts.ru/Power/atx_v2_pinout.shtml

.

[PCBONEZ]

Re: older than time PSU for automotive test machine

I still think for $15 [now only $12]...
... I'd just get the right kind of PSU and skip all that rewiring...

Not that I like this brand..... But they do still make them.
http://www.newegg.com/Product/Produc...82E16817338010
[And the old ones weren't >70% efficient.]

For 15 bucks I'd get the Athena and do a preemptive recap.
.

[scampo77]

Re: older than time PSU for automotive test machine

ive tried the new power supply and it is still the same symptoms im moving onto the controller boards as i suspect that it must have blown something when the supply failed. ive started a new thread and i please invite everyone here to join in as you guys already know half the battle ive been through. well now that the power supply is changed and rewired. so long as the voltages are correct it should work. i had a old atx laying around here from a computer. if i can get theis thing to come back to life i will absolutleu buy a new one for it. for now i dont want to throw good money after bad by buying tester parts for it.

please please stop in at the new thread for any advice. i put up lots of pictures this time. https://www.badcaps.net/forum/showth...d=1#post181897