LG GD580 - Page 116

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Only for training and service purposes
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4. Trouble Shooting
4.11.2 Bluetooth Clock path
start
1. Check BT_CLK
(Buffered MCLK)
TP1: 26MHz
2. Check
MCLKSEC
TP2: 26MHz
1
Go to 4.11.3
OK
NG
Replace
U107
OK
NG
Check RF3000
(U102)
Main PCB TOP
TP2
TP1
1
R101
0
u
7
.
4
0
2
1
C
1
2
1
C
u
1
.
0
8V
1
_
E
DD
V
51
1
R
3
3
3
0
60
100K R119
R
LRD5
2
1G1C
V
L
4
7NS701U
4
3
2
5
1
E
O_
CCV
A
DNG
Y
KL
C
_TB
N
_
Q
E
RKL
C
_T
B
K
L
C
M
30
6
0
TP2
TP1