Troubleshooting Guide - LG 34UM61 Service Manual

Check JP800
Voltage Level (12V)
Y
Check IC700
Output
Voltage Level (5VS)
Y
Check IC801 Output
Voltage Level (1.1V,
3.3V)
Y
Check X100 Clock
14.318MHz
Y
Replace IC101
Flash Memory
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Only for training and service purposes

TROUBLESHOOTING GUIDE

1. NO POWER
N
Check Power
connector
OK ?
N
Replace IC700 &
Recheck
N
Replace IC801 &
Recheck
N
Replace X100
- 25-
Y
Replace Power
Board
LGE Internal Use Only