Service Guide
1.2.4
Woofer no power
Problem
Analyzer and
Identify the Causes
Broken or short circuit
Solutions
Check solder points on
PCB
Woofer no power
Defective
D401,D402,X1,U201,
LED1
Check and replace
defective IC or
components
Version 1.0
Page 9 of 18
SW-HF5.1 1200
Speaker cable dis-connect or
speaker damaged
Re-connected speaker cable
or replace defective speakers