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Service Guide
SW-J2.1 1200
1.2.4 Woofer no sound
Problem
Analyze and
identify the
causes
Solution
-
Version 1.0 Page 10 of 23
PCB damaged,
dry-soldered or
short-circuited
2. IC2, IC3 or VR1 or related
components damaged in
YM9660 2.1L AMP
PCB.
Repair or replace
Repair or replace
Woofer driver unit
/Speaker cable of
YM9660 2.1L AMP
SP1
dry-soldered or
defective;
Repair or replace
Woofer no sound
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...