JVC LT-42HB1BU Service Manual page 24

MAIN PWB CIRCUIT DIAGRAM (2/46) [SATELLITE TUNER]
5
1
GND
2
GND
3
GND
4
D
GND
JP230
OPEN_DK-504-039(F-CON)
C
B
+3.3V_STUNER
L1021
BLM18PG300SN1D
C1022
C1023
220uF/16V/MVK/S
104p/16V/1005
MAIN PWB(27/46) LNB_OUT
A
CD1021
OPEN-AVL26K05121
All location are from 1021 to 1050
5
4
U1021
*I2C Address : 0xD2
LNB-IN
U51
SHIELD CAN
BCM4505
LNB-OUT (option)
2X12 Connector
HSN-5000HS/DTV
C1021
102p/50V/1005
4
(No.YA707<Rev.001>)2-11
3
TS1_DATA7
25
HS0_D7
TS1_DATA6
26
HS0_D6
TS1_DATA5
27
HS0_D5
TS1_DATA4
28
HS0_D4
TS1_DATA3
29
HS0_D3
TS1_DATA2
30
HS0_D2
TS1_DATA1
31
HS0_D1
TS_DO0 TS1_DATA0
32
GND
C1025
102p/50V/1005
104p/16V/1005
C1028
102p/50V/1005
C1027
104p/16V/1005
C1030
102p/50V/1005
R1022
R1023
TS1_VLD
TS1_STR
MAIN PWB(24/46)
TS1_CLK
TS_DO0 Must be pull-down register because gpio default
high. then default voltage is about 0.3V
MAIN PWB ASS'Y(2/46)
[SATELLITE TUNER]
HU-71100006
3
2-12(No.YA707<Rev.001>)
2 1
TS1_DATA[7..0] MAIN PWB(24/46)
A1V2S_BCM4505
L1022
BLM18PG300SN1D
C1026
220uF/16V/MVK/S
+5V_STUNER
C1024
L1023
BLM18PG300SN1D
C1029
220uF/16V/MVK/S
2.5VS_BCM4505
L1024
BLM18PG300SN1D
C1032
220uF/16V/MVK/S
C1031
104p/16V/1005
MAIN PWB(27/46)
22K_TONE
330/1005
FLI_SCL_1
330/1005
MAIN PWB(6/46),(26/46),(27/46)
FLI_SDA_1
MAIN PWB(7/46)
CH_RESET
R1021
222/1005
2 1
D
C
B
A
hb1_main_0612_26/48_0.0