Service Guide
SW-HF 5.1 5050
*Attention
Please follow the numbered sequence marked within parenthesis given in
individual
Flow chat in that this is the best-recommended sequence to rectify the problems.
1.2.1 No power
,
LED
(
indicator
)
unlighted
Problem
Analyze
and
identify
the
causes
Solutions
Version 1.1 Page 7 of 31
Repair or
replace
Defective or damaged
AC cable or power
switch
resolder or replace
No power
,
LED
(
indicator
)
1. Fuse disconnected or
damaged
2. Defective transformer
1.
Defective assembled wire of
SW-HF5.1
5050 CON PCB JK1 and SW-HF5.1 INPUT
PCB JACK2
2. Defective assembled wire of SW-HF5.1
INPUT PCB JACK1 and SW-HF5.1 AMP PCB
JACK1
3. PCB dried soldered or broken
4. Defective or damaged IC2, IC2, CR1.
Repair or
replace