Service Guide
SW-HF 5.1 5005
*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 30
No power
，
LED
（
indicator
）
Repair or
replace
Defective
transformer
Defective or
damaged
AC cable, or
power
resolder or replace
Repair or
replace
Repair or
replace
1.
Defective assembled line of SW-HF
5.1 CON PCB
2.
Components
dry-soldering or
disconnected on SW-HF 5.1 CON PCB
3.
Defective or damaged motor VR or
its assembled line
4. Defective or damaged
IC2, CR1,
Q1, Q2, Q3, Q4, IC1 on SW
-FH5.1
CON PCB
Fuse
disconnected
or damaged
