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Service Guide
SW-J2.1 1200
1.2.5 Noise
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 11 of 23
Filter capacitor/ diode dry-soldered
or damaged, pls check EC14,
EC12,
EC1, EC6, EC13, D1
,
D2, D3, D4;
The power supply of each IC
is
normal or not;
PCB dry-solder or broken
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-J2.1 1200
Page 1: ...Service Guide SW J2 1 1200 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 23...
Page 16: ...Service Guide SW J2 1 1200 Version 1 0 Page 16 of 23 Chapter 3 Block diagram...
Page 17: ...Service Guide SW J2 1 1200 Subwoofer Version 1 0 Page 17 of 23 Chapter 4 Exploded view...
Page 18: ...Service Guide SW J2 1 1200 Satellite Version 1 0 Page 18 of 23 Chapter 4 Exploded view...
Page 19: ...Service Guide SW J2 1 1200 Wired control Version 1 0 Page 19 of 23 Chapter 4 Exploded view...