Main - Micom Circuit Diagram - LG BP340 Service Manual

8. MAIN - MICOM CIRCUIT DIAGRAM

12
3.3V_STBY
U1D U1D
D21
DVCC33_IO_STB
DVCC33_IO_STB E22
DVCC33_IO_STB
11
AVDD33_LDO F17
AVDD33_LDO
G16
AVSS33_LDO
10
AVDD12_LDO H16
TP64 TP64
AVDD12_LDO
MT8551 MT8551
9
8
7
GPIO0 R121 R121
GPIO1 R94 R94
6
GPIO1 R134 R134
GPIO0 R95 R95
GPIO3 LED R97 R97
5
4
IR
3
2
1
A B C D
3.3V_STBY
D20 GPIO0
GPIO0
E18 GPIO1
GPIO1
UARXD F19 UARXD
UARXD
E20 UATXD
UATXD
B23 VSTB VSTB VSTB
VSTB
A23 VDATA VDATA VDATA
VDATA
A22 VCLK VCLK VCLK
VCLK
D22 LCDRD R105 R105 10K 10K
LCDRD
B22 IR
IR
A21 R87 R87 100 100 RESET_
RESET_ RESET_
B21 OPWRSB
OPWRSB 3
OPWRSB
C200 C200
0.1uF/16V/X7R 0.1uF/16V/X7R
NC/100 NC/100
100 100 POWER1 VCLK1
NC/100 NC/100
100 100 OPEN1 VSTB1
100 100 VDATA1
R98 R98 100 100 IR_IN
E F G H
VOUTD3
7
VOUTD3
VOUTD4 R88 R88
VOUTD4 7
VOUTD5
VOUTD5 7
VOUTD6
7
VOUTD6
3
XP7 XP7
4PIN/2.0mm 4PIN/2.0mm
1
1
2
2
3
3
4
4
VCC_D
TR1 TR1
PTC/1.5A/6V PTC/1.5A/6V
VCC
7
7
I J K L M
3-27 3-28
7 LED
TDO TP29 TP29
0 0 TCK TP30 TP30
TMS TMS TMS
TDI TP32 TP32
3.3V_STBY
TRCLOSE TRCLOSE
GND2 GND2
R135 R135 R132 R132 R131 R131
NC/10K NC/10K 10K 10K 10K 10K
3.3V_STBY
3.3V_STBY
TP47 TP47
UARXD R133 R133
TP43 TP43
UATXD
10K 10K
TP44 TP44
GND7 GND7
UART PORT
USB_VCC +12V
C91 C91 C92 C92 C93 C93
0.1uF/16V/X7R 0.1uF/16V/X7R 4.7uF 4.7uF 0.1uF/16V/X7R 0.1uF/16V/X7R
USB_VCC
+12V
FB3 FB3 0 0 12V 1 12V
1
2 GND
2
IR_IN 3 IR_IN
3
4 VCC
4
5 GND
5
USBP0 6 USBP0
USBP0 6
USBM0 7 USBM0
USBM0 7
USB_VCC 8 USB_VCC
8
VSTB1 9 VSTB1
9
VCLK1 10 VCLK1
10
VDATA1 11 VDATA1
11
12 GND
12
13
13
14
14
CONNECT PF BOARD
XP1 XP1
14PIN/2.0mm 14PIN/2.0mm
N O P Q
LED GPIO3
R130 R130 R129 R129
10K 10K 10K 10K
TP48 TP48
TDI
TMS
TCK
TDO
ICE PORT
12V 12V
GND6 GND6
IR_IN IR_IN
VCC VCC
GND4 GND4
USBP0 USBP0
USBM0 USBM0
USB_VCC USB_VCC
VSTB1 VSTB1
VCLK1 VCLK1
VDATA1 VDATA1
GND5 GND5
R S T