LG 49UF6700 - HDMI No Sound

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LGE Internal Use Only
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Only for training and service purposes
13. HDMI No sound
Check input signal format. Is it supported?
OK
Check DDC in-start menu
NG
Replace DDC component HDMI1 : AR3207, AR3201, D3218 HDMI2 : AR3204, AR3200, D3208
OK
NG
Replace IC3200 or Main Board or HDMI Jack HDMI1 : JK3203 HDMI2 : JK3200
Check DDC component HDMI1 : AR3207, AR3201, D3218 HDMI2 : AR3204, AR3200, D3208
NG
Check HDMI pattern IC2500 ↔ IC101 HDMI pattern
NG
Replace Main Board
OK
Replace URSA9 IC (IC2500) or Main IC (IC101) or Main Board