Check input signal format.
Is it supported?
Check RGB Cable conductors
for damage or open conductor
Check EDID & EEPROM (in HDMI SW IC)
IC3201 I2C Signal R3644, R3643(SDA,SCL)
Check JK3603
H/V_Sync/R/G/B Signal Line
R579/R580/L502/L500/L501
ok
ok
ok
No
No
Re-download EDID data or Replace the defective IC
ok
Replace Jack or Replace the defective element
Check DSUB_DET
Replace R3646
No
ok
No
Check L9 Ace (IC101) Chip
Replace IC101
6. Trouble shooting - No video (RGB-PC)
ok
No
Check L9 D-chip (IC100) Chip
Replace IC100 or Main Board.
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Summary of Contents for 55G2
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