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

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Service Guide
SW-2.1 1500
*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 1.0 Page 7 of 23
Defective transformer
Defective or damaged
AC cable, or power
switch
Or caused by the following Or caused by the following
1. transformer secondary wire loosely connected with PT1 jack.
2. Dry soldering of PT1 in
SW-2.1 1500 PCB
3.
SW-2.1 1500
PCB Copper foil broken
4. G6 plug of the wired-control defectively connected or damaged
5. VR2 on the ym9660-2.1L CON PCB damaged or dry-soldered
6. JK2 on SW-2.1 1500 PCB defective
No power
，
LED
（
indicator
）
unlighted
Repair or replace
resolder or replace