Troubleshooting Procedures By Ass'y - Samsung CW29M066V7XXEC Service Manual

6-3 Troubleshooting Procedures by ASS'Y

6-3-1 NO POWER
NG
Change CHECK HOT BLOCK
Materials
C815(B+) Voltage check
NG
Change
Materials
NG
Change
Q406 H-OUT TR Cehck
Materials
LED
POWER CORD
IC801
Samsung Electronics
AC Voltage Impress
I C801S
NG
I C801S
Materials
DC : 16 ~ 24V
Over
DC :132V
OK or Low
OK
F/BACK LINE CHECK
PC801S/IC804/Q801...
IC601 IC601
IC301 IC301
FP801S FP801S
D801S
No-Power
NG
FP801S FUSE
#1 CHECK
CHECK
OK
#4 CHECK
D801S CHECK
OK
SPS IC CHANGE
F/back Line Check
NG
FA801S/FA802S FUSE/
132V F/B Line
12V Line
NG
L811 Open
12V Line
B+ check
OK
Q804 (VCC_5V_C)
Regulator Check
OK
B+(132V) Line
NG
Materials
TU02
D809A D809A
Troubleshooting
NG
AC FUSE CHANGE
OK
D801S
NG
BRIGE DIODE
OK
CHANGE
I C801S
Change
Diode Check
Materials
NG
R820 Line Change
Materials
Check
OK
Change
NG
Materials
F-Box Check
and Change the
Module
Change
No-Power
Repair End
TU01
IC802 IC802
IC803 IC803
Q401 Q401
T444
F/BOX
6-5