LG BD370 - System Check

4-3
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Only for training and service purposes
LGE Internal Use Only
ELECTRICAL TROUBLESHOOTING GUIDE
System Check.
OK
Go to “Tray operating is abnormal”
NO
Does tray
operate normally?
Load tray without inserting disc.
YES
Go to “Sled operating is abnormal”
NO
Does Pick-up move to
Inside or outside?
YES
Go to “Focus actuator operating is abnormal”
NO
Does Pick-up lens move
up/down?
YES
Go to “Laser operating is abnormal”
NO
Does laser turn on?
YES
• Replace the traverse assembly. (Pick-up)
• Check the new firmware version .
NO
Does BD/DVD-ROM
disc play rightly?
YES
YES
2. SYSTEM CHECK