Samsung SR-S22DTC - Trouble Diagnosis and Repair Methods; Power Supply and Compressor Troubleshooting

9. Trouble Diagnosis & Repair Method
1. Check whether power cord is normally connected before repairs.
2. Practice checkup on the basis of Reference in the next page.
230V AC FUSE
Disconnection?
* power cord terminal connection
Replace FUSE
Check cord assembly
connection.
is voltage abou!
DC 320V applied to both
BD1+terminals ?
; Replace PCB pattern
>< Caution and BD1.
As high pressure current more
than DC300Vgenerates on the
Ss sage DC5.8
power part of main PCB, take applied between, top s/w
great care in case of checkup 223Y ‘C-S ?
and measurement. Replace PCB
assembly.
s voltage 12 N
applied to both terminals
Replace D104(D105)
(S3L20U)(D10SC9M)
Is voltage 5V
applied to both terminals
of C1032
Replace REG1 (7805).
Does panel PCB
’ operate normally?
xlead
wire
cable,
door
(connect
®
ae
ae
assembly
at HINGE-UP part) @ Replace panel PCB
Does {oad of relay
and so forth operate
normally ?
Y
@ Replace the
corresponding relay
@ Check connection of
lead wire