by dudge62 »
Tue Jul 14, 2009 9:10 am
I don't want to "butt in".. but the late Charlie Mayer & I were friends for many years... Living just miles apart....( including his '53 Chevys)....besides Rock-Ola jukes. Usually, the "boards" in those later Rock-Ola's were OK....BUT! the power supplys were bad!. Before going to the "cpu"....check out the power supply. Even if you get another "cpu".. a bad power supply will "smoke it". So, check the power supply 1st. If it is OK (probably not)... get it repaired BEFORE you install a new CPU or repaired one. Many "boxes" were sold to destinations that the installer didn't check the "incoming" voltage... homes, establishments, etc. A lot of the " boxes" required PROPER VOLTAGE SETTINGS... usually stated on the "installation manual". When RockOla went to cpu's...the voltage tolerances became limited to less than 5% in some cases. ( I.E. 110 VOLTS VS 130 VOLTS) . This didn't apply to all machines...but, is prudent to check out. Also...dirt & dust on a cpu / power supply can create "cross-talk". That means "dust" fibres transmit VOLTAGE between components especially in high humidity. So, CLEAN the cpu / power supply with a brush.. with your person GROUNDED... so as not to cause static electricity. Most components ( caps & resistors) on these earlier machines can be replaced with intelligent testing. Good Luck! Dudge.