- 29 -
LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4. Tuner/CI Block Diagram
TDJM
-G
301D
K2Lp
RT
K
[+3.3V_TUNER] 11
[+3.3V_DEMOD_TU] 26
[+3.3V_1.2V_DEMOD]
28
[IF_P_TU]
6
[IF_N_TU]
7
[TU_SIF_TU]
9
[TU_CVBS_TU]
8
[IF_AGC_TU]
3
[FE_DEMOD1_TS_ERROR]
12
[FE_DEMOD1_TS_CLK_!]
14
[FE_DEMOD1_TS_SYNC_1] 15
[FE_DEMOD1_TS_VAL_1]
16
AH
6
[GPIO7_TPOCLK
]
AH
4
[GPIO10_TPOSYC
]
AH
5
[GPIO11_TPOVAL
]
FE_DEMO
D2_TS_ERRO
R
FE_DEMO
D1_TS_CLK
FE_DEMO
D1_TS_SYNC
FE_DEMO
D1_TS_VA
L
FE_DEMOD1_TS_D
ATA[
0-
7]
17
-2
4
FE_DEMOD1_TS_DA
TA
[0-7
]
AL
4~AJ5
[GPIO*_TPOD0~TPDO7
]
[+2.5V_DEMOD] 38
+2.5V_Normal
[/TU_RESET1_TU]
25
/TU_RESET
1
AN6[GPIO14_DIGI_M
IC
]
[+3.3V_LNA_TU]
1
[LNB_TX1]
29
[LNB_OUT1]
31
[I2C_SCL2_TU]
27
[I2C_SDA2_TU]
30
I2C_SCL2
I2C_SDA2
+3.3V_TU
+3.3V_NORMAL
IF
_P
IF
_N
TUNER_SI
F
TU_CVBS
IF
_AGC
AT2 [IF_P]
AT3 [IF_N]
AG1 [VIN10P]
AM
6[
GPIO
0_RF_I
F_AG
C1
]
[I2C_SCL5_TU]
4
[I2C_SDA5_TU]
5
D_DEMOD_CORE
LNB1
IC6901
A8303SEST
R-
TB
LN
B_TX
1
LN
B_OUT1
1.8K
Ω
7
[SCL]
8
[SDA
]
10
[TO
NECTRL
]
2
[LNB
]
33
Ω
[FE_DEMOD3_TS_ERROR]
41
[FE_DEMOD3_TS_SYNC]
42
[FE_DEMOD3_TS_CLK]
43
[FE_DEMOD3_TS_VAL]
44
[FE_DEMOD3_TS_DATA]
46
[/TU_RESET2_TU]
45
/TU_RESET
2
AU
38[G
PIO80_SDD3
]
33
Ω
33
Ω
AM
5
[GPIO1_T_SCL]
AM
4
[GPIO2_T_SDA]
OP
T
[FE_DEMOD2_TS_ERROR]
34
[FE_DEMOD2_TS_SYNC]
36
[FE_DEMOD2_TS_CLK]37
[FE_DEMOD2_TS_VAL]
39
JAPAN_OP
T
[FE_DEMOD2_TS_DATA]4
0
FE_DEMOD2_TS_DA
TA
[0
]
JAPAN_OP
T
TU_JAPAN