LG 32LY560M, Service Manual

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Only for training and service purposes
4. RGB Video
5. HDMI Video
Check input signal format.
Is it supported?
Check RGB Cable
for damage or open conductor.
Check JK705
R/G/B signal Line
ok
ok
ok
No
Replace Jack
Check RGB_DET Signal Replace R732
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
Check EDID Downlaod
ok
ok
ok
No
Replace the defective IC or re-download EDID data
Check HDMI Signal
Check other set
If no problem, check signal line
ok
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
Replace Main Board
No
Check HDMI_DET (HPD)
No
Replace HDMI1 R802, R805, Q800
HDMI2 R812, R813, R814
Check HDMI I2C Signal
ok
No
Replace D800. D801
Check JK,800, JK801
No
Replace Jack
ok