Ci Interface; Usb Interface - Sharp LC-32LE140E Service Manual

A6
SDO
A7
GPIO14
LC-32LE140
K6
DDCA_CK/UART0_RX
M6
DDCA_DA/UART0_TX
U5
MSD9WB9PT-2
H19
DDCR_CK 4

6. CI INTERFACE

H20
DDCR_DA
SPDIFI/GPIO139
A4
IRIN
CI Interface Power Switch:
It is used for CI module supply, when Module is inserted (it means CI detect is low) This
Y6
XIN
circuit is opened or closed by CI_POWER_CTRL port of main uController
AA6
XOUT
E5
HWRESET
B3
USB0_DP
A3
USB0_DM
W8
USB1_DP
Y8
USB1_DM
J9
GND0
H9
GND1
OCKET
TP56
1
TP57
5V_STBY
F259
1
1 2
IR_IN
600R
C949
1 2

7. USB INTERFACE

27pF
50V
Main Concept IC has integrated 2 USB 2.0 interface. One of them is used for ethernet
3
function, the other one is used for USB connectivity for last user. Last user can play video,
2
picture and audio files. Also digital channels can be record to externall storage device by
Q171
this interface. All SW files can be updated with interface.
1
BC848B
3
174
USB circuit has 3 main parts
2
Q173
 Integrated USB 2.0 Host interface of D3K (U5)
BC858B
1
 Protection IC (U145)
 Over Curent Protection IC (U8)
5V_STBY
PANEL VCC = 5V/12V
RESET
3V3_VCC
AA13
TX_A_2_P
LVA2P
Y13
TX_A_2_N
LVA2M
AA12
TX_A_CLK_P
LVACKP
W12
TX_A_CLK_N
LVACKM
W11
TX_A_3_P
LVA3P
Y12
TX_A_3_N
LVA3M
W10
TX_A_4_P
LVA4P
Y11
TX_A_4_N
LVA4M
R1959
1 4k7
Y9
GPIO137
W7
AA10
GPIO141 100R
Y10
R1954
GPIO143
R1952
4k7
1 2
B7
GPIO10
E6
GPIO11
F6
GPIO7
ONBOARD KEYBOARD
E2
USB INTERFACE
4
3
2
1
C610
CN1
10uF
10V
1
5V_VCC
VIN
VOUT
U8
2
GND
FPF2124
3
4k7 ON ISET
R1198
2
TOUCH_PAD_OPTION
3V3_STBY
2
HP_MUTE
DVD_SPDIF
HP_DETECT
CI_POWER_CTRL
3V3_VCC
STBY_ON/OFF_NOT
LED1
LED2
TP10
1
+ -
SW5
3 BUTTONS KEYBOARD OPTION
6 IO4 IO1 1
U145
5 2
VDD GND
AZ099-04S
4 IO2 3
IO3
TP7
1
5
R46
4
560R
3
36
KEYBOARD_ONBOARD
R793
1
47R
S76
MECH_SWITCH
EXT KEYPAD
E1
R844
1 10R 2 USB_DP
R845
1 10R 2 USB_DM
C630
2
100nF
1
F248 10V
1 2
2
KEYBOARD
600R
F249
3V3_STBY
1 2
600R
R1937
1 47R 2 SCL_SYS
R1936
1 47R 2 SDA_SYS
SINGLE
4