LG CM9520, Service Manual

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3-5
Does the customer select correctly
the iPod function he or she wants to listen to?
Make sure to put a iPod or a iPhone
on the docking system on the top of the unit.
YES
NO
Does the customer use the compatible iPod?
Make sure that The unit supports the models
as follows/iPod nano 1 G, 2 G, 3 G, 4 G, 5 G, 6 G/
iPod classic/ iPod 4 G, 5 G/
iPod touch 2 G, 3 G, 4 G/ iPhone 3 G, 4 G, 4GS.
YES
NO
After displaying “Loading”,
is “IPOD” displayed on VFD?
If “ERROR”message is displayed, make sure firmly to put a
iPod or a iPhone on the docking system on the top of the unit.
When the battery of a iPod or a iPhone is fully discharged, the
unit can not detect IPOD function, Please wait for a moment
and then it will work after charging a little.
YES
NO
After selecting desired songs
using the user interface of a iPod or a iPhone,
press PALY button and turn the master volume
clockwise for the volume up.
The volume level LEDs around the master volume
will be turned on more and more
while turning it clockwise for the volume up.
YES
NO
Is there any sound from iPod or iPhone?
Refer to a device’s instruction manual
and then check if there is sound output
from it connecting another audio system.
YES
NO
Are the sound spectrum level LED’s
on the left and right side of the front panel
being changed up and down
according to the sound input gain?
The sound spectrum level LED’s will be turned on/off
repeatedly at regular intervals. A speaker cable might
be short-circuited with the chassis ground.
Be careful not to be shorted each other.
YES
NO
Are the speaker cables connected correctly
between the speaker terminals on the unit
and the speakers?
Maker sure to connect the cables
to each specified connector tightly on the unit.
Connect the woofer cables to the WOOF SYSTEM
connectors on the rear panel.
YES
NO
The sound is output from the speakers. Sound OK
YES
4. NO SOUND IN IPOD FUNCTION
TRAINING MASTER