LG 27MK60TM - No Video - D-sub Troubleshooting; No Video - HDMI Troubleshooting

No Video – D-sub
No Video – HDMI
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Only training and service purposes
Replace Main Scaler (IC201)
Check input signal format
Is it supported?
Check Dsub(P201) pin for proper
connection or Damage
Replace Connector
Y
N
Check I2C Signal(M200,
M201)
Re Download EDID Data
Y
N
Y
Check Dsub Cable for
Damage or Open Connector
Y
Replace Main Scaler (IC201)
Check input signal format
Is it supported?
Check HDMI
pin(JP102,103,104,105,106) for
proper connection or Damage
Replace Connector
Y
N
Check I2C Signal(JP105,106)
Re Download EDID Data
Y
N
Y
Check HDMI Cable for
Damage or Open Connector
Y