Service Guide
SW-HF 2.1 1800K
1.2.6. Noise
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 12 of 24
Filter capacitor/ diode
dry-soldered or damaged, pls
check EC6
，
EC7
，
EC11
，
EC12
，
EC14
，
EC15
，
EC4
，
EC5
，
D1
，
D2
，
D3
，
D4 in AMP PCB
The power supply of each IC
is
normal or not
Check and replace
Repair or replace
Repair
Driver units damaged
Woofer cabinet leaks,
closed not well.
Or caused by vibration from
too long lead wire of driver
units
Noise
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...
