Wiring Diagram Of Tuner - Sharp LC-32HI5012E Service Manual

3.9 Wiring diagram of Tuner

1 2 3
RFT1
A
CT4
CT5
1 RF RF_INPUT
RF
LT3
CT6
LT4
2
GND
3
GND
4
GND
5 LT7
GND
6
GND
7 GND
GND
GND
GND
3V3_T _T
R49 R48
B
RT18
TUNER_SCL_IC TUNER_SCL
TUNER_SCL_IC
RT19
TUNER_SDA_IC TUNER_SDA
TUNER_SDA_IC
GND GND
CS24 CS23
LNB_PW
Single ended:75ohm
CS19 CS20 CS21 CS22
(W=21mil,Gap=18mil)
2-Layers
RFT3
GND GND GND GND
C
CS30
1 RS36 RFIN
RF
LT14
DT2 US1
2 21
GND EPAD
3 1
GND GND
4 GND GND CS34 DET 2
GND DET
5 3
GND LT
CS37 VBAT 4
VBAT
CS39 VBG 5
GND VBG
GND
3V3_T _S2
CS40
Bead:
1k@100M & 400ohm
@400M,300mA& R(dc)<0.8 ohm
GND
CS43 CS42
GND
PCB 短路
S2_IP RS10 IF_IP CS33 IP_S
PCB 短路
S2_IN RS11 IF_IN CS35 IM_S
PCB 短路
S2_QN RS12 IF_QN CS36 QM_S
D PCB 短路
S2_QP RS3 IF_QP CS38 QP_S
1 2 3
4 5 6 7
3V3_T _T
GND GND
CT39
CT1
LT1 CT3 CT2
LT2
CT33
GND
UT1
LT13
25 3V3_T _T
DT1 GND GND
CT7
LT5
1 18
GND RFIN AVDD GND
LT6
RT10
2 17 IFN
GND RFIN2 VOP
RT12
3 16 IFP
TF1 VON
LT9
GND GND 4 15 IFAGC_R842
TF2 VAGC
CT8
5 14
GND DECT1 VAGC2
CT43 CT21
CT10
6 13 R842_XO
SCL XTAL_O GND
YT1
RT16
TUNER_SCL R842_SCL
GND
RT17 CT12
TUNER_SDA R842_SDA
GND
3V3_T _T
CT14 CT15
RT5 CT16
CT19
GND
GND
CT27
RT9
T_IFP T_VIFP_IC
T_VIFP_IC
CT32
RT11
T_IFN T_VIFM_IC
T_VIFM_IC
RT2 CT24
XTAL_I_710
GND
CS25
GND S2_SDA
S2_SCL
15 S2_IP
VOP
14 S2_IN
VON
13 S2_QN
VONQ
12 S2_QP
VOPQ
11
CL _OUT
RS39
IFAGC_RT710 IFAGC_S
CP
CS45
RS38
YT2
GND
GND
+3.3V_M
RS18
RS21
PCB 短路
IFAGC_S S_IFAGC_IC
S_IFAGC_IC
CS9
GND
4 5 6 7
8 9 10
RFT5
1
GND
2 3V3_T _T
3.3V
3 T_MODLE_SCL TUNER_SCL
RT14
SCL
4 T_MODLE_SDA RT15 TUNER_SDA
SDA
5
GND
T_IFN 6
NC
T_IFP 7 GND T_IFN
IF_N
8 T_IFP
IF_P
RT13 T_IFAGC 9 T_IFAGC
IF_AGC
CT37
GND
+3.3V_M
RT6
T_IFAGC T_IFAGC__IC
T_IFAGC__IC
RT8
R842_XO
RFT4
1 LNB_PW
LNB
2 3V3_T _S2
3.3V
3 IFAGC_S
AGC
4 S2_IP
IP
5 S2_IN
IN
6 S2_QN
QN
7 S2_QP
QP
8 S2_SDA
SDA
9 S2_SCL
SCL
10
CLK-OUT
GND
RS1
S2_SDA TUNER_SDA
RS2
S2_SCL TUNER_SCL
8 9 10
40
11 12 13 14
+3.3V_M 3V3_T _T
LT17
CT28 CT29 CT20 CT42
GND GND
+3.3V_M 3V3_T _S2
LT11
CS46
GND
12V
L 1 L 3 D 1
C 4 C 1 C 2 C 8
GND
U 1
+3.3V_M 4
VIN
R 1 R 2 R 8
LNB
RT5047
LNB_PWEN_IC R 9 5
LNB_PWEN_IC EN
LNB_13V 18V_SEL_IC R 4 6
LNB_13V 18V_SEL_IC SEL
COMP 7
COMP
DISEQC_IC R 5 EXTM 8
DISEQC_IC TONE
R 6 R 11
GND
GND
11 12 13 14
15 16
A
B
C
C 7 C 12
GND
D 4
LNB_PW
L 4
1
D 3 C 11 C 3 C 9 D 2 D 5
GND
D
15 16