GRUNDIG Service
Chassis KU
2 - 13
Chassisplatte / Chassis Board – Tuner / DVB-T2
I
ADC
Q
ADC
0 / 90
LOW-IF
FREQ
SYNTH
RF
AGC
LDO
IF
AGC
OU
TP
UT
INTERFAC
E
XOSC
XTAL_I
PGA
PGA
CONTRO
L
INTERFAC
E
XTAL_O
XOUT
AGC
ALIF
AGC
Si2158
DSP
FILTER
ANTENNA
INPUT
GPIO
3.3 V
1.8 V
LDO_ADJ
RSTB
ADDR
SCL
SDA
DLIF
XC8102
each
circuit
ON/OFF Control
GATE
CONTROL
Current
Limit
VIN
VSS
VOUT
CE
Rdischg
CE/
IF_AGC_1
100NF
C1037
IF_AGC_1
3.3V_Tun
ANTPOWER: L- OFF, H- ON
+5V2_ST
TP106
PMEG4010EH
D1002
IFAGC
3.3V_Tun
0R
R1017
0R
R1018
100NF
C1029
IFAGC
22UF
C1006
NR3015T220M
L1001
22K
R1020
Vout
1
GND
2
CE
3
Vin
4
EPAD
5
XC8102AA01GR-G
IC1002
100NF
C1034
100NF
C1035
BK1005
LL2
41
-T
L1
009
BK1
00
5L
L2
41-T
L1
01
0
22PF
C1032
22PF
C1028
DIF_P
DIF_N
10K
R1014
22NF
C1036
100R
R1021
LQ
G1
5H
SR27J02
D
L1004
NC
C1031
100NF
C1026
C1015
47pF
LQ
G1
5H
SR18J0
2D
L10
06
180PF
C1024
82PF
C1016
180PF
C1014
180PF
C1019
LQ
G1
5HSR
27J
02D
L100
3
LQ
G1
5HSR
27J
02D
L1
007
LQ
G1
5HSR27
J02D
L1
008
LQ
G1
5H
SR27J02D
L100
2
1NF
C1009
1NF
C1011
1NF
C1005
1NF
C1004
1NF
C1003
100NF
C1012
3.3V_Tun
address=0xC0
1
3
2
BC807-40LT1G
T1000
1NF
C1008
1NF
C1013
2.2R
R1000
3.3V_Tun
0R
R1009
NC
R1012
10K
R1011
3.3V_Tun
TP104
XOUT_2158
330R
R1015
1K
R1019
10PF
C1033
NC
10K*4
R1016
TUNER_RST
100R
R1013
0R
R1003
10NF
C1030
1
3
2
4
8PF
X1000
NC/24MHz
X_2158
X_2158
TUNER_RST
FE-RST
FE-RST
TUNER_RST
I2
C_T_
SD
A
I2
C_T_
SC
L
100NF
C1022
100NF
C1018
DIF_P
DIF_N
XOUT_2158
XTALO_S2
XTALO_S2
TP105
ALIF_N
12
GPIO2
2
GPIO1
1
ADDR
26
SCL
4
EPAD
29
GND
19
XOUT
16
LDO_ADJ
15
RF_REF
22
XTAL_O
18
AGC1
28
GND
7
AGC2
3
RSTB
27
RF_IP
23
RF_IN
24
RF_SHLD
25
XTAL_I
17
SDA
5
ALIF_P
13
DLIF_N
9
DLIF_P
11
VDD_
IO
6
VDD_
H
10
VDD_
H
20
VDD_
H
21
VDD_
D
8
VDD_
L
14
Si2158-A20-GMR
IC1001
RF
IN
0R
R1002
RFOUT1
1
2
3
4
5
6
7
S1000
AJ-32
RFIN
RFOUT1
I2C_T_SDA
I2C_T_SCL
I2CT
I2CT
100NF
C1007
10UF
C1010
3.3V_FE
0R
R1001
C1027
47pF
14
15
22
23
11
Chassisplatte / Chassis Board – USB
+5V_USB
USB_EN
TP150
Hi: ON
Lo: OFF
TP144
TP146
TP148
TP147
TP143
Hi: ON
Lo: OFF
TP138
TP140
TP142
P1
1
P2
2
P3
3
P4
4
GN
D
6
GN
D
5
S1403
MOLEX CLICK MATE
4PIN
R1403
0R
R1404
0R
R1411
0R
R1409
0R
1
3 2
4
D1400
NC
1
3 2
4
D1401
NC
USB0C_N
USB0C_P
USB3RX_N
USB3RX_P
USB_SSTX_P
USB_SSTX_N
USB3TX_N
USB3TX_P
USB_SSRX_N
USB3RX_N
USB_SSRX_P
USB3RX_P
USB3TX_N
USB3TX_P
USB_SSRX_P
USB_SSRX_N
USB_SSTX_P
USB_SSTX_N
P0_N
P0_P
P0_P
P0_N
P1_N
P1_P
P1_P
P1_N
P2_P
P2_N
P2_N
P2_P
USB_N
USB_P
USB_N
USB_P
R1402
0R
C1405 100nF
C1404 100nF
USB3_EN
Hi: ON
Lo: OFF
V_BUS5
V_BUS5
VBUS
VCC
D-
D-
D+
D+
GND
GND
SHLD
5
SHLD
6
S1402
SST081016-01
VBUS
VCC
D-
D-
D+
D+
GND
GND
SHLD
5
SHLD
6
S1401
SST081016-01
TP137
TP139
TP141
USB1C_N
USB1C_P
USB3_EN
L1400
+5V_USB
USB_CHRG
USB_CHRG
USB_EN
TP149
TP145
1
3 2
4
D1402
NC
V_BUS_WIFI
VCC5V_CI_WIFI_MHL
+5V_USB
V_BUS_WIFI
VBUS
1
D-
2
D+
3
GND
4
ST
9
STDA_SSRX-
5
ST
6
GND_DRAIN
7
STDA_SSTX-
8
SHELL
10
SHELL
11
SHELL
12
S1102
VOUT
1
VSS
2
FLG
3
CE
4
VIN
5
XC8107AC05MR-GW
IC1401
VOUT
1
VS
S
2
FLG
3
CE
4
VIN
5
XC8107AC05MR-GW
IC1403
VOUT
1
VSS
2
FLG
3
CE
4
VIN
5
XC8107AC10MR-GW
IC1400
10UF
C1407
10UF
C1409
10UF
C1408
10UF
C1403
10UF
C1402
10UF
C1401
10UF
C1400
TP247
TP248
TP249
TP250
+5V2_ST
L1401
NC
WOWL
P1
1
P2
2
P3
3
P4
4
GN
D
8
GN
D
7
P5
5
P6
6
S1404
3D_SYNC_OUT
XC8107
Vss
V
IN
V
OUT
FLG
Thermal Shutdown
ON/OFF Control
UVLO
Control
Current Lim.
Current Sense
7.5ms Delay
4ms Delay
Reverse Current Prevention
each
circuit
CE
!
Power on (trigger: +5V2_ST)
$
%
™
Mode: ATV
™
Mode: DTV
£
