Hdmi Problem - LG SH5B Service Manual

8. HDMI PROBLEM

No display or No Sound.
8-1. IC802
1) Check 3.3 V at L801, L802.
2) If 3.3 V is not output, check 3.3 VA at pin1 of IC802.
3) 1), 2) is OK.  Replace IC802.
8-2. IC803
1) Check 1.0 V at L803.
2) If 1.0 V is not output, check 3.3 V at pin1 of IC803.
3) 1), 2) is OK.  Replace IC803.
8-3. IC801
1) Check 5.1 VA at L804 of JK800.
2) If 5.1 VA is not output, following Step 2-2.
3) 1), 2) is OK.  Replace IC801.
L804 L804
JK800 JK800
ONE POINT REPAIR GUIDE
IC802 IC802
L801,L802 L801,L802
IC801 IC801
< MAIN board top view >
< MAIN board bottom view >
IC803 IC803
3-10