Service Guide
SW-5.1 1800
1.2.7. Noise
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 13 of 28
Filter capacitor not work, or
dry-soldered, or commutation
diode dry-soldered or
damaged
Abnormal power supply or
point voltage of some IC (IC1,
IC2, IC6)
Vibration from too
long lead wire of
driver units;
Driver units
damaged
Capacitor EC19 not work or dry-soldered;
EC2
,
EC4
,
EC5
,
EC7
,
EC8 inserted in
the reverse way or creeping
One channel short-circuited
Repair
Check and replace
Repair or replace
Noise
Summary of Contents for Genius SW-5.1 1800
Page 1: ...Service Guide SW 5 1 1800 SERVICE GUIDE KEY SYSTEM CORP Version 1 0 Page 1 of 28...
Page 18: ...Service Guide SW 5 1 1800 Version 1 0 Page 18 of 28 Chapter 3 Block diagram...
Page 19: ...Service Guide SW 5 1 1800 Subwoofer Version 1 0 Page 19 of 28 Chapter 4 Exploded view...
Page 20: ...Service Guide SW 5 1 1800 Front satellite Version 1 0 Page 20 of 28 Chapter 4 Exploded view...
Page 21: ...Service Guide SW 5 1 1800 Center satellite Chapter 4 Exploded view Version 1 0 Page 21 of 28...
Page 22: ...Service Guide SW 5 1 1800 Rear satellite Version 1 0 Page 22 of 28 Chapter 4 Exploded view...
Page 23: ...Service Guide SW 5 1 1800 Wired control Chapter 4 Exploded view Version 1 0 Page 23 of 28...
Page 27: ...Service Guide SW 5 1 1800 Amplified PCB Version 1 0 Page 27 of 28 Chapter 7 Schematic diagram...