Samsung WS-32M204D, Service Manual

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Troubleshooting
6-8 Samsung Electronics
6-4 Troubleshooting Procedures by ASS'Y
6-4-1 NO Power
1. Power part of the Main Board Check
No-Power
AC Voltage Impress
IC801S #1 CHECK
FP801S FUSE
CHECK
AC FUSE CHANGE
D801S CHECK
D801S
BRIGE DIODE
CHANGE
IC801S
STR IC CHANGE
IC801S #4 CHECK
DC : 16 ~ 24V
CHECK HOT BLOCK
Materials
C802(B+) Voltage check
DC :135V
F/back Line Check
■ 135V F/B Line
■ 12V Line
L804 Open
B+ check
R817 Line
Check
Change
Materials
F-Box Check
and Change the
Module
NG
OVER
OK
NG
OK
OK
NG
Change
Materials
NG
OK
12V Line
NG
NG
NG
B+(132V) Line
OK
OK
F/BACK LINE CHECK
PC801S/DZ801/Q803...
Change
Materials
NG
No-Power
Repair End
OK or Low
HC401 H-OUT TR Cehck
FD801S/FD802S FUSE/
Diode Check
Change
Materials
Change
Materials
Change
Materials
NG
NG
OK
NG
IC801S