No Hdmi Output; Cannot Read Disc Or Tray Open/Close - LG BP340 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

6. NO HDMI OUTPUT

No HDMI output.
Whether the HDMI cable is
connected to the unit.
Whether the TV display mode
or resolution is OK?
Replace main board.

7. CANNOT READ DISC OR TRAY OPEN/CLOSE

Cannot read disc or tray open/close.
Whether the loader running
is normal?
Whether 8.2 V from Q9 S
polarity is normal?
Replace the loader.
Whether another loader
running is normal?
Scan the new barcode.
YES
YES
YES
YES
YES
YES
NEXT
YES
NO
Connected TV and unit with HDMI cable.
NO
Adjust the TV display setting.
NO
Check cable connection of XP3/ XP4/ XP5.
NO
NO
Replace main board.
3-8
Replace U11.