Read LG 32LD550 (CHASSIS:LA02B) Service Manual online
7. HDMI Video
Check input signal format.
Is it supported?
Check HDMI Cable conductors
for damage or open conductor.
for damage or open conductor.
Check HDMI Switch
IC8300 video Signal and I2C line
Check JK8300 / 1 / 2 / 3
ok
ok
ok
No
No
Replace Coil or FET
ok
Replace Jack
Check HDMI Signal output
of HDMI Switch (IC8300)
Check resister R8329 ~ R8334
If no problem, check signal line
If no problem, check signal line
No
Replace BCM( IC900) or Main Board
No
Check HDMI_DET(HPD)
No
ok
Replace R8300.R8302, R8301,R8316
Check L8300(+3.3V) , Q200 (+1.8V)
Replace the defective IC.
No
OK
ok
No
Check FRC and BCM LVDS Output
Replace Mstar(IC9001) or BCM( IC900)
or Main Board.
or Main Board.
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