LG GD330 - Multimedia; Using the Voice Recorder; Sending the Voice Recording

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Only for training and service purposes
4. TROUBLE SHOOTING
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4.3.2.2 Checking 1.8V from ABB
4.3.2.3 Checking BT_CLK
Checking pin
TP1
1.8V?
NO
Check U100
YES
U403
1.8V from ABB is ok
TP1
TP2
To check the BT_CLK, should check the
C413 which is located nearby DCXO
(X400)
X400
F6
C
LK_IN
C2
D
_DAC
_
IN_BB
F5
N
_OSC
H3
N
_RFIO
F1 D8
D
D_IO1
D
D_IO2
A3
D
D_IO3
G7
NC1
G5 H6
NC2
H8
NC3
DOWN
E3
_
CTRL
B3
D6
E_SEL
I
N
D
704
R
T
A
BV
44
4
C
u1.0
OIV
_8V1
CLK_400
504
R
K001
3
44
C
u1
_BT_RESET CLK_32K
TP1
p
0001314C
41
4
u
10.0
Hn28
904
L
O
IV
_
8V1
K
L
C_TB
NI
_
R
E
C
IL
S
TP2