billqs... Welcome to AA! :wave:

Thanks!!!

Call McIntosh parts. For a reasonable fee they’ll send you a .pdf, usually the same day.

Anyone have C500T service manual?

Yes... any 452 or 462 service manuals?

Also C1100?

Great Initiative Masterflu thanks!
Hope MC302/312 Pops up sooner or later.
Try to obtain manuals for both here in Holland, but without succes till now.
Would like to check if more components in the power supply where altered when the double capacitor value was introduced in the MC312.
Like to add the same extra 27.000 uF ones in my 302 and see what this does.
I presume in the soft start module, parts also will be adjusted to the double capacity.
Hope you can help.

Hi, This is my first post in this forum. I am the proud owner of a MA5200 and I an looking for the service manual. Anyone has a copy to share?.

This forum is very informative and addictive. The more I read posts, the more I want to own every mcintosh hardware. :banana:

Pablo
Spain

I recently had a problem, my MA6700 just stopped turning on. The red LED on the front panel is on, there is no reaction to either the front panel buttons or the remote control. Unplugging the power cable does nothing.

I have read on several forums that this problem sometimes occurs on some Macintosh amplifiers, this problem is caused by firmware corruption and needs to be updated.
I contacted Chuck Hinton, but he said that I need to contact the regional service center. The nearest Macintosh service center is 1,200 kilometers away. Chuck used to willingly restore 6700 remotely, but now everything has changed, unfortunately.
I have instructions for the firmware, but there is no firmware itself. According to the instructions, you need to press the TST button inside the device. When I press it, my MA6700 is put into programming mode, a new unknown device appears, but there is no firmware.
Does anyone have firmware for MAC6700/MA6700 please share.

MC152 Service manual or schematics wanted
 

Need service manual or schematic for MC152. Having to offset balance 6db for proper balance. Would like to check bias on output boards.
Thanks