Genius SW-2.1 355 - 1.2.5 Woofer No Sound

S
e
rvi
ce G
ui
de
SW-2.1 355
1.
2.
5 W
oo
fer no
sou
nd
Problem
Analyze and
identify the
causes
Solutions
-
Version
1.0
Page
1
1
of
20
Woofer driver unit
dry-soldered or
defective
Repair or replace
Repair or replace
1.
Defective
assembled
line
between
CON1 and CON2
2. R9
，
R10
，
C15
，
C18
，
R14VR2
，
R15,
C20
，
C21
，
CON4 dry-soldered tor
defective
3.
U2
/U3
or
the
components
around
defective or dry-soldered
Woofer no sound