LG 23MA73D-PUP - Trouble Shooting

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Only for training and service purposes
TROUBLE SHOOTING
1. No Power
Check L800 All
Voltage Level (19V)
Check Power connector
OK ?
Replace Adapter
N N
Check IC802 output
Voltage Level (5V)
Replace IC802 &
Recheck
N
Check IC809Output
Voltage Level (3.3V_ST)
Replace IC809
N
Y
Check IC806 Output
Voltage Level (1.15V)
Replace IC806 &
Recheck
N
Y
Y
Check IC810 Output
Voltage Level (2.5V)
Replace IC810 &
Recheck
N
Y
Check IC807 Output
Voltage Level (1.5V)
Replace IC807 &
Recheck
N
Y
Check X201 Clock
24MHz
Replace X201
N
Check X201 Clock
24MHz
Replace X201
N
Replace IC100 Flash Memory
Y
Y