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needs a schematic Amp Supply PAC-5 Power PAC

p0z0l3_

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Jul 9, 2025
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hi guys, my buddy is repairing and needs a schematic for the Amp Supply PAC-5 Power PAC for the LK 800

It's proving tougher than I thought to find online.
If anyone's got the schematic/ manual or can point me to a reliable source, I'd really appreciate the help!
 
I encountered the same problem when trying to find the PAC-5 schematic for the LK-800, it's pretty much nowhere to be found online. But there are still some good Manual Archives out there that offer free download of the LK-800 manual, which includes the PAC-5 wiring, in both PDF and DJVU formats.

If you can't get it from there, try searching for "LK-400/500 series power supply PAC-5 service/manual" PDFs, some of the older manuals feature the same connector as well.
 
Last edited by a moderator:
hi guys, my buddy is repairing and needs a schematic for the Amp Supply PAC-5 Power PAC for the LK 800

It's proving tougher than I thought to find online.
If anyone's got the schematic/ manual or can point me to a reliable source, I'd really appreciate the help!
That equipment is from the old Amp Supply company in Ohio. While your buddy's in there, it would be smart to check the condition of the main filter capacitors as they're often the first to go.
 
It's wild how much vintage gear info just vanishes...honestly, companies should be forced to release schematics after 10 years. Hoarding technical docs like trade secrets only hurts the hobby and safety
 
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