Version 1.0 Page 6 of 19
SW-S2.1 200
Service Guide
*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
No power
，
LED
（
indicator
）
unlighted
Repair or replace
Defective transformer
Defective or damaged
AC cable or power
switch
resolder or replace
Or caused by the following:
1. Transformer secondary wire loosely connected with DC1
jack in
J2.1 500 AMP
.
2. Copper foil of
SW-S2.1 200 AMP
PCB broken
