LG GT350 - Page 97

- 98 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
LG Electronics 94/115 LGE Property
4.13.4 Checking Transceiver Output Signals
Figure 20. Transceiver Output Circuit
Checking Points
Figure 21. Transceiver Output
Table 3. Transceiver Output Operation
Ramp Burst Control8PS
K
FixedGMS
K
Transceiver OutputMODE
TP1(LBNAD_PAM_IN)G
TP2(HBNAD_PAM_IN)G
TP1(LBNAD_PAM_IN
TP2(HBNAD_PAM_IN
X601
26MHZ
TSX-3225
21
3
4
GND2 HOT2
HOT1 GND1
U601
PMB6272
20
19
18
17
16
15
14
13
12
2
1
2211
32
01
42
9
528 6
2
7
72
6
82
5
924 0
3
3
13
2
23
1
33
34
35
36
37
38
39
40
41
GND4
GND3
VDDMIX2V8
VDDTX2V8
TX2
TX1
VDDTX1V5
VBIAS
FE2
A 1EF
XA 8V2SAIBD
DV
B X1X
R
XB 1X
R
8V2
G
IDDDV X2X
R
A
D
2XR
K
L
C
2DN
G
5V1GIDDDV X3XR
3SYSF
3XR
2SYSF X4X
R
OX 4X
R
X
OX 5V
1AN
L
D
DV
GND1
FSYS1
VDDXO2V8
EN
VDDVCO2V8
VCO_RC
VDDRX1V5
VDDRX2V8
0.22uF
C613
0.047uF
C617
C618
0.1uF
9
0
6R
01
10R610
C622
0.22uF
R612
820
RF_CLK
2V85_VRF
VC2
LBAND_PAM_IN
HBAND_PAM_IN
1V53_VRF
26MHZ_BT
TP1(LBNAD_PAM_IN)
TP2(HBNAD_PAM_IN)