Pioneer VSX C300

"AMP ERR"

Symptoms:

Several times a day the sound will disappear. The message

"AMP ERR" wil be shown in the display, and after a few seconds

a relay will click and everything is ok for a while.

The problem:

Bad solderings (see picture)

The connections to the small PCB with IC452 (-6 VDC regulation) had to

be resoldered. Theck the other boards too.