Service Guide
SW-HF 5.1 5005
1.2.9. Noise
Problem
Analyze and
identify the
causes
Solutions
Version 1.1 Page 15 of 30
Broken or dry-soldering
PCB
Defective VR4, VR3, VR2
VR4
,
VR3
,
VR2
Resolder or replace
Check and replace
Resolder or replace
Defective or dry-soldering
IC2 or components relating
IC2 on
SW-HF5.1 INPUT
PCB
Noise