Read LG 26LG3DDH (CHASSIS:LA96D) Service Manual online
6. AV Video
Check input signal format.
Is it supported?
↓ OK
Check AV Cable for damage or
open conductor.
↓ OK
Check JK1206
→
NO
Replace Jack.
↓ OK
Check Mstar LVDS output
→
NO
Replace Mstar(IC100)
or Main board
7. HDMI Video
Check input signal format.
Is it supported?
↓ OK
Check HDMI Cable for damage or
open conductor.
↓ OK
Check JK500
→
NO
Replace Jack.
↓ OK
Check EDID & EEPROM IC500
I2C Signal (#5, #6)
→
NO
Replace the defective IC or re-
download
EDID data.
↓ OK
Check HDCP key NVRAM(IC105)
power & I2C Signal (#5, #6)
→
NO
Replace the defective IC.
↓ OK
Check HDMI Signal
→
NO
Check other set.
If no problem, check signal line.
→
NO
Replace Main board
↓ OK
Check Mstar LVDS output
→
NO
Replace Mstar(IC100)
or Main board
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