Samsung CS29A5HT8X/NWT Service Manual page 27

Abnormal
Check
Level Shifter Q909, Q910
Output(If 2N7000 Output has the DC
Component over 0.7V, it is broken)
Abnormal
Normal
Check
Abnormal
Replace
MICOM
Q909, Q910
IIC #2, #3
Normal
Check
Replace
IC902 EEPROM
EEPROM(IC902)
Normal
Check IC201S
Note : When you check whether any component is normal, you must let the output pin be open in order not to be affected by the side of output.
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Plug in Power Cord
ON Check
LED lamp
Check Normal
MICOM IIC #5, #6
Check
Normal
the MICOM Power #59
With Remote Controller
Normal
Abnormal
Replace
Replace Q908
Q908
Normal
Abnormal
Check
Replace
IC802, IC803
IC802, IC803
Normal
Check
Abnormal
Replace
IC201S VDP
IC201S
H-OUT #50
Normal
Abnormal
Check
Replace
Q401 H-TR
Q401
Normal
Abnormal
Check
Check
135V Line
PC801S, IC801S
Normal
Replace
FBT
OFF
Check
IC901 MICOM
Input Voltage
Abnormal
Check
Normal
Abnormal
IC903 3.3V Regulator
Input Voltage
Replace Abnormal
the MICOM
Check
Abnormal
D801 and D811
Normal
Check
Normal
IC804 Input Voltage
Abnormal
Check
Normal
R828 and D805
Abnormal
Check
IC801S and FP801S
Normal
Check and Replace
the MICOM
Check and Replace
IC903
Replace
D801 or D811
Check and Replace
IC804
Check and Replace
R828 or D805