rock ola max2 481 trouble shooting

farmmersist · by **farmmersist** » Sun Mar 23, 2014 7:12 am

I recently aquifer a rock old max2. I heard it play once before then it was stored well I plugged it in and the speakers just made this real loud humming sound and I don't know why can anyone help me. I turned down the volume but nothing happened still humming at the same level loud Please help

clones · by **clones** » Sun Mar 23, 2014 11:49 am

IF the volume control is turned down to the lowest level and the hum is still evident the chances are that something is wrong with the amp, also i would check the cartridge, and connections to the cartridge and from there to the amp which can also cause hum if faulty
regards
Sean

Rob-NYC · by **Rob-NYC** » Sun Mar 23, 2014 5:26 pm

The hum you are describing is indicative of either a shorted output transistor(s) or dried up electrolytic filter capacitors.

i lean toward the latter because shorted outputs -usually- blow fuses.

In either case, amp work is required.

if you feel competent to DIY or just want some info, go here and D-L the schematic and data:

http://arcarc.xmission.com/PDF_Jukebox/Rockola/

Rob/NYC