Noise - Genius SP-HF1255A Service Manual

Service Guide

1.2.4 Noise

Problem
Filter capacitor
/diode
Analyze
dry-soldered or
and identify
damaged,
the causes
please
C1, C14, C31，
C20， C9, 1D1，
1D2,1D3, 1D4
in
defective
not;
The
supply of each
IC is normal or
not
Solutions
Repair
Noise
Or caused
vibration from too
long lead wire of
check driver units
AMP
or
power
Check
replace
Driver units damaged
by Woofer cabinet leaks,
closed not well
and Repair
replace
10
SP-HF1255A
or