Grundig 42 VLE 8500 B0 Serviceanleitung Seite 41

Chassisplatte / Chassis Board – DVB-S VKT190R-6
XC8107
Reverse Current Prevention VCC3V3-ST
V V
IN OUT
Current Sense
5
UVLO Control Current Lim.
C1876 4
4ms Delay 7.5ms Delay
CE ON/OFF Control 1UF
FLG
each Thermal Shutdown
POWER_SW
circuit POWER_SW
V ss
L1100
VCC3V3
C1104
60R 3A
10uF 6.3V
S1100 C1112
75 ohm Line
1
12PF
2
L1102
3 27nH
4 0.59A
5
COAX_F
SAT_LNB_POWER
C1122 C1123
1nF 100pF
C1128 C1130 C1129 C1135 D1100
NC 10uF 35V 10uF 35V 470nF 25V
PMEG4010EH
IC1102
LNBH29EQTR
14
VUP
D1102
PMEG4010EH
9
16
LX
L1103
L1104 6.8uH
3A 60R
12
VCC12V VCC
DSQIN/EXTM
C1144 C1143
220nF 50V
10uF 35V
6
SCL
7
SDA
5
ADDR
I2CS_SCL R1119 100R 8
ISEL
I2CS_SDA
R1121 R1122
10K 15.4k %1
R1127
2.2K
ADDR SCL SDA
LX
DSQIN (1)
I²C Digital core
LNBH29
DAC
Drop control
PGND
Tone ctrl
Diagnostics
VUP
Protections
Current
Linear
ISEL VOUT
Limit
Regulator
selection
Voltage
R3 R2
reference
EXTM (2)
GND BYP VCC
L1820
TP251
IC1805
3.3V_FE
XC8107AC10MR-GW
60R
3A
1
VIN VOUT
C1874 C1875
3
CE FLG
10UF 100nF
C1108 C1105 C1106 C1109
10UF 100nF 100nF 10UF
TUNER_3V3_MA
TP107
130mA
C1107 1nF
1uF
IC1100
100nF AV2018
C1115
1 12
RFIN GND
12PF
L1101 2 11
NC XTAL1
D1101
7.5nH
DIODE
3 10
RFAGC XTAL2
4 9
RFLP SDA
TP108
SAT_LNB_POWER R1107 10K
C1125 100nF
C1141 C1100 C1103
220nF 50V
10pF 10pF
13
VOUT
C1134 100nF
D1104
17
EPAD
PMEG4010EH R1109
15
C1136
NC
11 100R
NC TUNER_3V3_MA 100nF
1
NC
R1100
3
4.7K
C1160
R1110 R1111
10 DISEQC_OUT_A
BYP
1uF 0R
15.4K
R1116
C1163
4.7K
Power on (trigger: +5V2_ST)
9 @
≤ ∞
XTALO_S2
C1127
C1132 100nF
SAT_3V3_MA
IC1101
24 25
MSB1310
TUNER_3V3_MA
1
AVDD_33
3.3VD_MA
2
SAR_RSSI
X1100 3
GND
27MHZ 12PF-30/30PPM
R1101
R1106 4
XO
GND
0R
10K*4
XI 1 3 5
AVDD_33
C1113 C1114
6
S_TUN_SCL
I2CM_SCL
27pF 27pF
S_TUN_SDA 7
I2CM_SDA
R1104
18 19 8
S_TUN_SDA
VDDC
S_TUN_SCL 9
GND
10
VDDP
100R
C1119 C1120
11
TS_ERR
10pF 10pF
12
VDDC
TUNER_3V3_MA
BBIP
C1124
3.3VD_MA
10pF
BBQP
R1115
C1133 1K
R1118
10pF
10K
RFAGC_S
C1146
22nF
L1107
381mA
TP110
VCC1.22V 1.2VD_MA
C1159 C1156 C1157 C1158
60R 3A
1UF 100nF 100nF 100nF
L1108
TP111
VCC3V3 SAT_3V3_MA
C1152 C1153 C1154 C1155
240R
0.25A 100nF 100nF 100nF 100nF
L1106
TP109
VCC3V3 3.3VD_MA
C1145 C1148 C1149
240R
70mA
0.25A
100nF 100nF 100nF
^ &
§ ≥
XTALO_S2
BBIP
16 17
100nF BBIN
23
C1110
BBQN
BBQP 100nF
36
I2CS_SDA
35
VDDC
34
GND
33
VDDP
32
TS_SYNC
31
TS_VLD
30
TS_[D0]
29
TS_[D1]
28
TS_[D2]
27
TS_[D3]
26
TS_[D4]
25
TS_[D5]
3.3VD_MA 3.3VD_MA
R1123 R1113
10K 10K
TS_SAT_CLK
R1124
DVB_RST 33R
DVB_RST
C1150
C1151 NC
12
100nF
* (
• ª
I2CS
R1102
I2CS_SCL
I2CS_SCL
I2CS_SDA
I2CS_SDA I2CS
100R
1.2VD_MA
3.3VD_MA
26
TS_SAT_SYNC
TS_SAT_VLD
27
TS_SAT_D0
TS_SAT_D1
28
TS_SAT_D2
TS_SAT_D3
TS_SAT_D4
TS_SAT_D5
TS_SAT
TS_SAT_D0
TS_SAT_D0
TS_SAT_D1
TS_SAT_D1
TS_SAT_D2
TS_SAT_D2
TS_SAT_D3
TS_SAT_D3
TS_SAT_D4
TS_SAT_D4
TS_SAT_D5
TS_SAT_D5 TS_SAT
TS_SAT_D6
TS_SAT_D6
TS_SAT_D7
TS_SAT_D7
TS_SAT_CLK
TS_SAT_CLK
TS_SAT_VLD
TS_SAT_VLD
TS_SAT_SYNC
TS_SAT_SYNC
TS_SAT_D6
TS_SAT_D7
29
£