Again, Aloha All from Hawaii Island!
So I was brought a H & K Coreblabe to attempt repairing. I have never seen one before. A tank for sure!
So, the problem(s):
#1) No preamp functions, but a low volume sound is produced by turning up master with something plugged into input. All pre controls have no effect on that output volume. Also no effects.
#2) The Clean/Dirty/Ultra I/Ultra II is stuck with 1st 3 lights lit. (all but Ultra II) No effect by moving switch position
#3) The boost switch? is "on"? (lit) Pressing button has no effect.
I am guessing a microprocessor failure of some kind, but no clue where to begin to troubleshoot. Any ideas?
Mahalo,
Steve
So I was brought a H & K Coreblabe to attempt repairing. I have never seen one before. A tank for sure!
So, the problem(s):
#1) No preamp functions, but a low volume sound is produced by turning up master with something plugged into input. All pre controls have no effect on that output volume. Also no effects.
#2) The Clean/Dirty/Ultra I/Ultra II is stuck with 1st 3 lights lit. (all but Ultra II) No effect by moving switch position
#3) The boost switch? is "on"? (lit) Pressing button has no effect.
I am guessing a microprocessor failure of some kind, but no clue where to begin to troubleshoot. Any ideas?
Mahalo,
Steve