Service Guide
SW-HF 2.1 1800K
1.2.9 ECHO no use
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 15 of 24
IC5 in MIC PCB works well or
not
Check and replace
Check and replace
IC5’s related components, especially
MC4
，
MC5
，
CC10
，
CC11
，
MC2
，
MC3
，
R32, R33
，
R17
，
R16
，
MC1
，
MC7
，
R35
，
EC13
，
VR1, R36
，
EC14 works well or not
ECHO no use
Summary of Contents for Genius SW-HF 2.1 1800K
Page 1: ...Service Guide SW HF 2 1 1800K SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 24...
Page 18: ...Service Guide SW HF 2 1 1800K Version 1 0 Page 18 of 24 Chapter 3 Block diagram...
Page 19: ...Service Guide SW HF 2 1 1800K Subwoofer Version 1 0 Page 19 of 24 Chapter 4 Exploded view...
Page 20: ...Service Guide SW HF 2 1 1800K Satellite Version 1 0 Page 20 of 24 Chapter 4 Exploded view...
Page 23: ...Service Guide SW HF 2 1 1800K Chapter 7 Schematic diagram SW HF 2 1 1800K AMP PCB...
