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START
Y
N
Change main fuse
Ohiy aline AC 220V FUSE?
N
Y
Is confimate 220V the
CN10 both sides?
POWER CARD connection
LEAD WIRE CABI, DOOR
(Cooent to the upside)
-Caution-
MAIN PCB power part is
appesred high-pressure.
N
Y
Change fuse-250V 2A
Check the eletric wire
construction
Nomal state
Is confimate DC5.
8Vthe the TOP S/W 223Y
among ‘C-S’?
Is confimate 12v the both
C104sides to?
Is confimate 5v the both
sides to c103?
Is PANEL PCB O.K?
Is RELAY O.K?
N
N
N
N
Y
Y
Y
Y
Change Reg1 (7805)
Change D102(D10SC9M)
1. Check assembly line
and repair
2. Change parel PCB
1. Change pertinet RELAY.
2. Check contacted
LEADWIRE.
Y
N
Only a line FUSE of MAINPCB?
N
Y
Change PCB PATTERN
and change BD1
Change PCBASSY
Is confimate 300V the
BD 1(+),(-),?
9. Diagnosis of disorder and method of repair
1. Check the power of consent and power code
2. Check it based on the :References” on the next pages.
Preliminary examamination
1. No input Power
1. ELECTRICAL (SR-61KTC,65KTC)