Inhaltsverzeichnis
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GRUNDIG Service
Chassisplatte / Chassis Board – DVB-C/T/T2, Demodulator
VCC5V
C1057
10UF
C1067
10NF
LNAIN
GND
LNAOUT
14
13
12
L1017
GND
1
11
GND
OUT1
2
10
SIN
R1003
IN1
3
9
SOUT1
L1009
1K
GND
4
8
GND
5
6
7
C1059
OUT2
IN2
SOUT2
NJG1151MD7
10NF
R1002
Analog/T/C/T2
470R
C1013
S1001
C1015
L1006
1
2
47PF
39PF
C1064
3
R1006
1.2PF
4
56K
5
6
7
8
C1023
AJ-35
180PF
IC1003
D1000
XC8101AA01GR-G
1
Vout
Vin
C1027
C1028
2
100NF
NC
C1038
GND
CE
100NF
R1019
IFAGC_S2_2
C1051
4.7K
100NF
R1025
IF_AGC_TUN2
IFAGC_TUN2_S2_2
C1058
4.7K
100NF
R1018
IFAGC_S2_1
IFAGC_S2_1
4.7K
C1061
100NF
R1038
IF_AGC_TUN1
IFAGC_TUN1_S2_1
R1022
C1083
4.7K
100NF
NC
R1021
IFAGC
3.3V_Tun
NC
C1017
NC
IM_S_1
QP_S_1
18
QM_S_1
DIF1_P
C1084
100NF
DIF1_N
C1085
IF1_P
100NF
IF1_N
19
IF2_P
DIF2_P
C1069
IF2_N
100NF
DIF2_N
C1070
T_SDA
100NF
T_SCL
1V2_CVDD
12
VCC1V2
L1016
TP126
C1082
C1086
C1075
C1072
C1073
C1074
10UF
100NF
100NF
100NF
100NF
100NF
VCC3V3
3V3_ADC
VCC3V3
3V3_DVDD
L1014
68mA
L1015
TP125
40mA
TP129
C1065
C1066
C1062
100NF
100NF
100NF
TP130
Power on (trigger: VCC_24V)
8
5
)
¡
Reverse Current
XC6222D
Protection
VIN
CFB
R2
Rdischg
Error
Current Limit &
Amp.
Thermal Shoutdown
+
-
/CE
R1
ON/OFF
CE
Control
Voltage
each
Reference
circuit
C1077
C1068
L1007
10NF
180PF
R1009
L1018
C1076
0R
L1003
180PF
IC1006
C1078
180PF
R1012
12
7
LNAOUT
SPLOUT2
13
6
0R
C1079
GND
SWIN
14
5
DUMMY
LNAIN
SWOUT
180PF
NJG1151
DVBT2_RST
8
R1010
TP124
+5V2_ST
4
3
C1041
100NF
10K*4
12
T_SCL
T_SDA
13
XC8101
Vout
Vin
Gate
Current
Control
Limit
/CE
CE each
ON/OFF
Vss
CE
Control
circuit
/CE
8
C1071
100NF
R1037
DVBT2_RST
TUNER_FEF2
DVBT2_RST
100R
R1036
IFAGC_TUN1_S2_1
VCC3V3
22K
IP_S_1
IP_S_1
18
220K
R1044
3V3_ADC
IFAGC
IC1005
SI21692-C55
52
IM_S_1
S_ADC_IN_A
QP_S_1
53
S_ADC_QP_A
QM_S_1
54
S_ADC_QN_A
IP_S_2
55
S_ADC_IP_B
56
IM_S_2
S_ADC_IN_B
QP_S_2
57
Demod A address=0xCA
S_ADC_QP_B
QM_S_2
58
S_ADC_QN_B
Demod B address=0xC8
59
TC_ADC_P_A
60
TC_ADC_N_A
61
TC_ADC_P_B
62
TC_ADC_N_B
XTALO_T2
63
CLK_IN_OUT
T_SDA
64
SDA_MAST
65
T_SCL
SCL_MAST
66
GND
67
VDD_CORE
68
VDD_CORE
13
69
EPAD
1V2_CVDD
TUNER_FEF1
850mA
C1087
IFAGC_TUN2_S2_2
100NF
0
™
3.3V_Tun
VOUT
C1031
1NF
C1032
1NF
C1034
1NF
100NF
C1035
1NF
C1037
1NF
C1008
VSS
C1001
1NF
C1010
1NF
C1006
1NF
100NF
C1002
C1009
IC1001
1NF
2
RF_REF_1
3
RF_IP_1
4
RF_IN_1
5
RF_SHLD_1
C1014
L1019
1NF
10
RF_REF_2
11
tuner 1 address=0xC0
RF_IP_2
12
RF_IN_2
L1020
13
RF_SHLD_2
tuner 2 address=0xC6
49
X_2158
XTAL_I
XOUT_2158
50
XTAL_O
R1008
34
RSTB_1
220R
8
NC
TUNER_FEF1
35
GPIO2_1
17
RSTB_2
19
GPIO1_2
TUNER_FEF2
20
GPIO2_2
6
ADDR_1
16
3.3V_Tun
ADDR_2
22
SCL_2
L1012
23
SDA_2
37
SCL_1
38
SDA_1
L1010
Si2191
X1000
24MHz
X_2158
1
3
XOUT_2158
1V2_CVDD
34
TS1_DATA[5]
33
VDD_VIO
3V3_DVDD
32
GND
31
VDD_CORE
1V2_CVDD
30
VDD_CORE
29
TS2_DATA[4]
28
TS1_DATA[4]
27
TS2_DATA[3]
26
TS1_DATA[3]
25
TS2_DATA[2]
24
TS1_DATA[2]
23
TS2_DATA[1]
22
TS1_DATA[1]
21
TS4-MDI0
TS2_DATA[0]_B/TS2_SER
20
TS5-MDI0
TS1_DATA[0]_A/TS1_SER
22
19
TS4-MICLK
TS2_CLK
18
TS5-MICLK
TS1_CLK
23
21 20
R1042
100R*4
10 11
R1045
4.7K*4
I2C_T2_SCL
I2C_T2_SDA
I2C_T_SCL
I2C_T_SDA
VCC3V3
!
£
2 - 16
L1001
1.8V_Tun
3.3V_FE
C1007
22UF
1NF
C1055
R1001
3.3V_Tun
C1063
1NF
IC1004
1
1NF
VIN
C1012
2
NC
C1033
3
VOUT
C1011
1NF
1UF
IC-SMDXC6221B502GR-G
30
DIF2_P
DLIF1_P_2
29
DIF2_N
DLIF1_N_2
C1018
C1020
26
DLIF2_N_2
28
33PF
33PF
DLIF2_P_2
C1080
C1081
43
SIF_1
SIF_1
33PF
33PF
41
CVBS_1
CVBS_1
45
DLIF1_P_1
44
DLIF1_N_1
36
IF_AGC_TUN1
R1039
R1040
AGC2_1
7
NC
NC
21
AGC2_2
18
IF_AGC_TUN2
AGC1_2
D_IF_TC_N
32
TP123
C1024
XTALO_T2
XOUT_2
R1041
48
1NF
XOUT_1
NC
24
D_IF_TC_P
CVBS_1
R1004
47R
R1005
C1036
1K
10PF
25
C1090
SIF_1
R1007
C1091
22K
22PF
C1092
1.2, 3.3V
RESETB
MP_A_A
Si21692
MP_C_A
S_ADC_IP_A
ADC_A
S_ADC_IN_A
Dual SAT
S_ADC_QP_A
S_ADC_QN_A
ADC_A
Demodulator_A
Tuner
TC_ADC_P_A
ADC_A
TC_ADC_N_A
DiSEqC_OUT_A
I2C
DiSEqC_A
DiSEqC_CMD
Block_A
DiSEqC_IN_A_B
SDA_MAST
SCL_MAST
XO
XTAL_I/CLK_IN
CLK_IN/OUT
TV Tuner
DiSEqC_OUT_B
I2C
DiSEqC_B
Block_B
TC_ADC_P_B
TV Tuner
ADC_B
TC_ADC_N_B
S_ADC_IP_B
ADC_B
Demodulator_B
S_ADC_IN_B
S_ADC_QP_B
ADC_B
S_ADC_QN_B
MP_B_B
MP_D_B
C1093
C1094
NC
NC
R1023
TS5-MISYNC
TS5_MISYNC
TS5-MIVALID
TS5_MIVALID
TS5-MDI0
TS5_MDI0
C1088
47R*4
NC
R1032
TS5-MICLK
TS5_MICLK
47R
C1060
NC
C1095
C1096
NC
NC
R1110
TS4-MISYNC
TS4_MISYNC
TS4-MIVALID
TS4_MIVALID
TS4-MDI0
TS4_MDI0
47R*4
C1089
NC
R1119
I2CT
TS4-MICLK
TS4_MICLK
47R
I2C_T_SCL
C1142
I2C_T_SDA
I2CT
NC
*
(
Mode: SAT
Mode: DVB-C/T
≤
∞
Mode: ATV
Chassis KR
TP120
3.3V_Tun
C1005
240mA max
100NF
1K
6
CE
5
VSS
4
NC
TP121
200mA max
1.8V_Tun
C1049
22UF
19
DIF1_P
DIF1_N
NC
D_IF_TC_N
D_IF_TC_P
C1030
CVBS_T
CVBS_T
47NF
100NF
SIFP
SIFP
SIFM
100NF
SIFM
GPIO1/TS_ERR_A
TS_VAL_A
TS_SYNC_A
TS_CLK_A
TS_DATA_A
8
ADDR_A
SDA_HOST
SCL_HOST
ADDR_B
GPIO0/TS_ERR_B
TS_VAL_B
TS_SYNC_B
TS_CLK_B
TS_DATA_B
8
TS5_MISYNC
TS5_MIVALID
TS5_MDI0
TS5_MICLK
TS4_MISYNC
TS4_MIVALID
TS4_MDI0
TS4_MICLK
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