KYE Systems Corp. Genius SW-2.1 1500, Service Manual

Page: 8 / 23

Service Guide
SW-2.1 1500
1.2.2 No sound
Problem
Analyze and
identify the
causes
]
Solutions
Version 1.0 Page 8 of 23
No sound
PCB short-circuited,
dry soldered or broken
G6 plug of the
wired-control
defectively connected
or damaged
JK2 in SW-2.1 1500 PCB
defective
VR2 YM9660 2.1L CON PCB
damaged or PCB copper foil
broken
Repair or replace Repair or replace
Or caused by the following defective
components in SW-2.1 1500 PCB
C1
，
IC4
，
IC3
，
IC2
，
Q1
，
Q2
，
Q3
，
ZD2
，
JK1
，
EC6
Repair, resolder or
replace