My project Gladiators has some potential power issues due to some plugs getting moved around before I acquired it.

Checking the three bridge rectifiers:
The 48vdc bridge rectifier has 50vac in but the output is 65vdc, much higher than the 48vdc the schematic states.
Does this sound about right ?
If this indicates a defective bridge, whats the replacement part? I do not see any part numbers in the manual.

12vdc and 20vdc bridge rec matches schematic values.

I would like to confirm all other power values before getting into what boards got damaged due to the cables being swapped. This is the first machine of this generation I have owned and it looks like it has a lot of different voltages running everything.
Is there a single document that has all the power values and checkpoints ?

Thanks for any info.

The 120v jumper is in, I have 116 coming in.
With 50VAC confirmed coming into the Bridge rec I would assume I would get the 48vdc out, but I am not.

I do not see a part number on this bridge, is there a spec or commonly used bridge I can replace with ?
Thx.

Since they are all three the same but one has out of spec output voltages, that one will be replaced.

Found this part number and ordered for replacement.

I will update after the new bridge is installed.
Thanks,

I have KBPC3504 coming in a few days.

The one I ordered has the tabs for the cables to connect to.
Thanks for the double check.

tab (resized).JPG

I replace the bridge - same values.
Got my hands on a donor transformer module - same values.

Since most of the head is unplugged:
My guess is, if the bridge does not have any load on it then the values will read high.

All I have plugged in at the head is the 5vdc supply.

boy141 - are any of the main boards connected in your unit? No load on bridge ?
Thx.

I would be interested in the voltage out after new bridge and cap.
Thx.