LG 34GL750 Service Manual page 13

4. No Video – DP
Check input signal format
Is it supported?
Y
Check DP Cable for Damage or
Open Connector
Y
Check JK101 for proper
connection or Damage
Y
Check IC101 AUX Signal
(#29,30)
Y
Check IC103 AUX Signal
(#3,4)
Y
Replace the G-SYNC Module
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Only for training and service purposes
N
Replace the Connector
N
Replace the IC101
N
Replace the IC103
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LGE Internal Use Only