Troubleshooting Procedures By Ass'y - Samsung WS32Z419D8**EU Service Manual

Troubleshooting

6-4 Troubleshooting Procedures by ASS'Y

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