LG SoundPlate lab550h, Service Manual

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2-20
DIGITAL DISPLAY & MEDIA TRAINING MASTER
Does the unit respond to
buttons on the front of the unit?
NO
YES
If the buttons on the front of the unit do not respond,
determine if the product has locked up or if the unit will not turn on.
The problem is not the remote control. Make sure the remote control is
the remote that goes with that particular model.
Does the remote control
any component?
NO
YES
Determine which product the remote is not working.
The customer may need to press the appropriate mode button
to make the remote operate another component. The remote may
even need to be programmed to the other component,
especially if the batteries were just changed.
Have the batteries
been changed?
NO
YES
Ask the customer to change batteries.
Make sure the batteries are new and fresh.
The batteries do not need to come from a “spare” battery drawer.
Do not mix used and new batteries.
Is the remote working
at all?
NO
YES
YES
If the remote does not work anything, then walk the customer
through a remote drain. Remove the batteries from the remote control.
Then press and hold any button down for a minute.
This will drain the power out of the remote and reset it.
Universal remotes will have to be reprogrammed.
Does any remote
work the unit?
NO
If another remote works the unit, then follow
the procedure to FOC the customer a new remote.
If two remotes do not work the unit, the unit will need service.
Does the customer want to
program their remote?
NO
Please refer to the OM for instructions on how to
program remote to TV. Customer wants to program a remote
other than Zenith or LG, the customer will need to contact
the manufacturer of the remote control. Codes do not work,
remote is not compatible.
5-5. Remote Control Not Working