Service Guide
SW-2.1 850
Version 1.0 Page 9 of 16
1.2.4 Woofer no power
Problem
Analyzer and
Identify the Causes
Solutions
Woofer no power
Broken or short circuit
Check solder points on
PCB
Defective
D1~D8,
Power SW, Fuse,
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers
Check and replace
defective IC or
components