Service Guide SW-HF 5.1 6000
*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，LCD unlighted
Problem
Analyze
and
identify
the
causes
Solutions
Version 1.0 Page 7 of 36
Repair or
replace
Defective
transformer
Defective or
damaged AC
cable/ power
switch
resolder or replace
No power, LCD no light
Fuse
disconnected
or damaged
1. Defective 7-pin assembled line connecting
JACK 1 on CON PCB and JACK2 on input
PCB, or defective 11-pin line connecting JACK 2
on INPUT PCB and JACK1 on AMP PCB
2. Components dry-soldered or disconnected
on CON PCB, INPUT PCB, or AMP PCB
4. Defective or damaged IC2/R3 on
SW
-FH5.1 CON PCB
Repair or
replace
Repair or
replace
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