Hello,
I recently got damaged Panasonic SG-55 amplifier, with no sound. I have replaced all caps and sound came back (only on 1 channel) so i thought i will search for STK IC and to my suprise i have found what seems to be original Sanyo STK460 from guy at craiglist.
After changing STK i now have a humm/buzz in both channels and no sound. I tried to check for ground issues but fouind nothing and i'm running out of ideas how to repair it.
What i have managed to find is that 100 ohm resistor connecting 9th and 8th line gets hot very hot quickly.
Anyone knows what could cause that?
I recently got damaged Panasonic SG-55 amplifier, with no sound. I have replaced all caps and sound came back (only on 1 channel) so i thought i will search for STK IC and to my suprise i have found what seems to be original Sanyo STK460 from guy at craiglist.
After changing STK i now have a humm/buzz in both channels and no sound. I tried to check for ground issues but fouind nothing and i'm running out of ideas how to repair it.
What i have managed to find is that 100 ohm resistor connecting 9th and 8th line gets hot very hot quickly.
Anyone knows what could cause that?
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