HELP Repair advice!

[Enzo]

On the one hand, everything is WAAAAY down deep inside the chassis, and if I let the fan whack my knuckle or my probe one more time I will scream. On the other hand, unlike many large power amps, the bottom panel does come off for access to both sides while it is running.

[tedmich]

On the one hand, everything is WAAAAY down deep inside the chassis, and if I let the fan whack my knuckle or my probe one more time I will scream. On the other hand, unlike many large power amps, the bottom panel does come off for access to both sides while it is running.

And you can adjust the pots from the bottom through the board (thus avoiding the fan!)

[tedmich]

FYI for anyone trying to repair older QSC amps, their service manuals are available online for free here: QSC Technical Services Library -Service Manuals & Schematics

they are zipped files and have a password requirement, but the word "power" worked for all the ones I downloaded.