Acer HARLEY TAB A3-A20 Service Manual page 61

6. No high-definition output
No high-definition output
Check if HDCP has been written
Check if the HD jack isn't soldered well
56
YES
NO
NO
Replace MB
OK
YES
YES
Re-solder HD jack
YES
Repair the MB referring to the
troubleshooting guide for L3 repair
Rewrite HDCP