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4. TROUBLE SHOOTING
Set the bluetooth ON
Check LDO
AP_VDD_BT_2.7V
ANT400
FL400
R404
(U400) Pin#5
is asserted?
Check Oscillator
REF_CLK_IN
(X400)
is asserted?
Check BT Antenna
RF Power (R404)
(ANT400) soldering
< -6 dBm?
Check FL400
soldering
Change
Bluetooth is work well?
the main board
U400
X400
END
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Only for training and service purposes
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