LG GD580 - Page 129

- 130 -
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Only for training and service purposes
4. Trouble Shooting
Check 3. 26MHz at BB part
Figure 4-15-2. Schematic (26MHz at BB Part)
Figure 4-15-3. 26MHz at TP1
DB3150
MCLK
TP1
TP1
Figure 4-15-1. Test point (26MHz at BB part)
Test Point (Crystal Part)
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
TP1
P
T
8
0
3PT
PT
5
0
3
P
T
8
1V
1
1
P
6
1
W
51
Y
6
1Y
41W
KL
CM
0
KLCS
Y
S
1KL
C
SY
S
2K
LC
S
Y
S
N_T
S
RR
W
P
K
L
C
M
1
K
L
CS
Y
S
DB3150
MCLK