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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
4. Tuner/CI Block Diagram
LN
B
IC6900
A8
303SEST
R-
TB
10
[T
ON
EC
TR
L]
2 [LNB]
7 [SCL]
8 [SDA
]
SC
L2
SD
A2
IF
P
IF
N
AA
D_A
DC_S
IF
33
Ω
TP
O_DA
TA[0-7]
CI Slot
33
Ω
TP
O_DA
TA[0-7]
TP
I_DA
TA[0-7]
/EB_WE_N
/EB_OE_N
CA
M_
REG_N
CA
M_
WA
IT_N_CI
PCM_RESET
EB_D
ATA[
0-7]
CI_D
ATA[
0-7]
EB_A
DDR[0-14]
CI_A
DDR[0-14]
EB_BE_N1
EB_BE_NO
/PCM
_C
E1
/CI_CD1
/CI_CD2
CI 5V
Po
wer
detect
PCM_5V_CTL
+5V_CI_ON
CI_TS_SY
NC
CI_TS_VA
L
CI_TS_CLK
TP
I_SOP
TP
I_VA
L
TP
I_CLK
CI
_M
DI
[0-7]
TP
1_D[0-7]
TP
I_DA
TA
_C
I[0-7]
/C
I_CD1
/C
I_CD2
GP
IO
18_PC_CD1_N
GP
IO
29_PC_CE1_1_
N
/PCM
_CE1
10K
Ω
GP
IO
34_PC_I
OWR_N
GP
IO
32_PC_I
ORD_N
/C
I_IO
WR
/C
I_I
ORD
PC_A
[0-14\
PC_D[0-7
]
CI
_A
DDR[0-14]
CI
_D
AT
A[
0-7]
GP
IO
55_PC_RST
GP
IO
57_PC_W
AI
T_
N
GP
IO
61_PC_REG_N
GP
IO
31_PC_OE_N
GP
IO
43_PC_WE_N
GP
IO
48_T
PO_C
LK
GP
IO
46_T
PO_V
AL
GP
IO
36_T
PO_SYC
TP
I_CLK_CI
TP
I_VA
L_CI
TP
I_SOP_CI
PCM_RESE
T_
CI
CA
M_
WA
IT
_N_CI
/REG
/C
I_OE
/ CI
_WE
VCC
GP
IO
59_PC_I
NP
AC
K_
N
+5V_NORM
AL
TD
JN-H203F
[+3.3V
_T
UNER]
11
[IF_
P]
8
[IF_N]
7
[F
E_DEMOD1_T
S_ERROR]
14
[F
E_DEMOD1_1_T
S_CL
K]
15
[F
E_DEMOD1_T
S_SYNC]
16
[F
E_DEMOD1_T
S_VA
L]
17
FE
_DEM
OD1_
TS
_D
AT
A[
0]
18
FE
_DEM
OD1_
TS
_D
AT
A[
1]
19
FE
_DEM
OD1_
TS
_D
AT
A[
2]
20
FE
_DEM
OD1_
TS
_D
AT
A[
3]
21
FE
_DEM
OD1_
TS
_D
AT
A[
4]
22
FE
_DEM
OD1_
TS
_D
AT
A[
5]
23
FE
_DEM
OD1_
TS
_D
AT
A[
6]
24
FE
_DEM
OD1_
TS
_D
AT
A[
7]
25
[+3.3V
_LNA
_T
U]
3
[LNB_T
X]
12
[LNB_OUT
] 26
+3.3V_Normal
[I2C_SCL5_
TU
] 1
[I2C_SDA
5_
TU
] 2
[T
U_SI
F_
TU
] 6
[T
U_CVBS_
TU
] 4
[IF_
AG
C_
TU
] 5
[/T
U_RESET
1_TU]
10
FI
LT
ER
FE
_D
EMOD
1_TS_CLK
FE
_D
EMOD
1_TS_SYN
C
FE
_D
EMOD
1_TS_V
AL
FE
_D
EMOD
1_TS_DAT
A[
0-7]
LNB_TX
33
Ω
33
Ω
LNB_OUT
IF_P_TU
IF_N_TU
TU_C
VBS
IF_A
GC
IF_P_M
AI
N
IF_N_M
AI
N
/TU_RESET1
GP
IO
14_D
IG
I_MI
C
VI
N10
P
GP
IO
0_RF_I
F_A
GC1
TP
I_DA
TA[0-7]
TP
O_D[0-7]
+3.3V_
TU
1.8K
Ω
K2L
GP
IO
7_
TP
0CLK
GP
IO
10_T
P0SYC
GP
IO
11_T
P0VA
L
GP
IO
9_
TP
0D0
GP
IO
13_T
P0D1
GP
IO
12_T
P0D2
GP
IO
4_
TP
D3
GP
IO
3_
TP
0D4
GP
IO
5_
TP
0D5
GP
IO
6_
TP
D6
GP
IO
8_
TP
0D7
CI
_M
IV
AL
_ERR
CI
_M
CLKI
CI
_M
IS
TR
T
TP
O_CLK
TP
O_VA
L
TP
O_SOP
GP
IO
46_T
PO_V
AL
GP
IO
48_T
PO_C
LK
GP
IO
36_T
PO_SYC
10K
Ω
+5V_NORM
AL
OR
Ga
te