LG 42LV375H Service Manual page 27

REAL TIME CLOCK
NEW_CRYSTAL
X700-*1 IC701
32.768KHz
C700 EAW30067102 M41T81
2pF
50V
XI VCC
1 8
X700
C701
32.768KHz
2pF
EAW39040101
50V XO IRQ/FT/OUT/SQW
OLD_CRYSTAL
2 7
R712
VBAT SCL
22
3 6
R701
R713
1K
VSS SDA
22
4 5
BA700
BATTERY
+5V_ST
IR_OUT
OPT R706
R702 10K
10K
C
R703
10K
B Q700
IR_OUT_CTRL
2SC3052
E
IR_OUT_HDMI1
IR_OUT_HDMI2
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.5V_ST
C703
0 . 1 u F
R715
16V
4.7K
CLOCK_SCL
CLOCK_SCL
CLOCK_SDA
CLOCK_SDA
CEC_REMOTE
ETHUB_MDC_NEC
ETHUB_MDIO_NEC
ETHUB_PWR_ON/OFF
ETHUB_SW
ENDEFER
LED_R/BUZZ
LED_B/LG_LOGO
UART_SW2
RL_ON
FLASH_WP
POWER_ON/OFF2_2
+3.5V_ST
UART_DBG_SW
OPT
DBG_SW
R718
10K
INV_CTL
PANEL_CTL
POWER_ON/OFF1
SOC_RESET
POWER_DET
EDID_WP
C
Q701 B
2SC3052
E
IC702 +5V_ST
74AC08SJ
A0 VCC
1 14
C704
R716
0 . 1 u F
4.7K
B0 A2
2 13
R717
O0 B2 22
3 12 IR_OUT
A1 O2
4 11
IR_OUT_RS232C
B1 A3
5 10
O1 B3
6 9
GND O3
7 8
+3.5V_ST
C l o s e d t o C r y s t a l
R754
47K
SW700
JTP-1127WEM
2
X701
4
10MHz
+3.5V_ST
R751
R748
22
1M
+3.5V_ST
C706
R750
0 . 1 u F
100K
C708
0 . 1 u F
R738
22
P60/SCL0
1
P61/SDA0
2
R739 22
OPT R719 22 P62
3
OPT R720 22 P63
4
R721 22 P31/TI03/TO03/INTP4
5
R7018 22 P64/RD
6
R7019 22 P65/WR0
7
R7020 22 P66/WR1
IC703
8
R7021 22 P67/ASTB
9
R7037 22 P77/EX23/KR7/INTP11
OPT
10
UPD78F1164GF(S)
P76/EX22/KR6/INTP10
11
P75/EX21/KR5/INTP9
12
R722 22 P74/EX20/KR4/INTP8 NEC_SUB MICOM
IR 13
R723 22 P73/EX19/KR3
14
R724 22 P72/EX18/KR2
15
R725 22 P71/EX17/KR1
16
R726 22 P70/EX16/KR0
17
R733 22 P06/WAIT
18
R710 22 P05/CLKOUT
19
EVSS1
20
OPT R797 22 P80/EX0
21
R790 22 P81/EX1
22
R791 22 P82/EX2
23
R727 22 P83/EX3
24
R728 22 P84/EX4
25
R729 22 P85/EX5
26
R730 22 P86/EX6
27
R731 10K P87/EX7
28
R732 0 P30/INTP3/RTC1HZ
29
EVDD1
30
+3.5V_ST
C705
0 . 1 u F
+3.5V_ST
R7100 R7101
4.7K
4.7K
S/T_SCL
S/T_SDA
+3.5V_ST
OPT
R740
10K
BU700
PKLCS1212E4001-R1
1
2
1
3
+5V_ST
R7032
10K
R7040
100
B
Q702
OPT
P140/PCLBUZ0/INTP6 R781 22
80
P141/PCLBUZ1/INTP7
79
P142/SCK20/SCL20
78
P143/SI20/RXD2/SDA20
77
NEC_RXD_DBG
R762 22
P144/SO20/TXD2
76
NEC_TXD_DBG
P145/TI07/TO07 R761 22
75 R789 22
P 0 0 / T I 0 0 R775 22
74
SUBAMP_SD
P01/TO00 R776 22
73
SUBAMP_MUTE
P02/SO10/TXD1 R787 22 OPT
72
P03/SI10/RXD1/SDA10 R799 0
71
NEC_EEPROM_SDA_2
2SC3875S(ALY)
P04/SCK10/SCL10 R798 0
70
NEC_EEPROM_SCL_2 Q713
P131/TI06/TO06 C
69
R794 22 OPT
P130 B B
68
AMP_MUTE
P20/ANI0 R760 22
67
P21/ANI1
66 E
R7027 R7028
P22/ANI2
65 10K 10K
P23/ANI3
64
P24/ANI4
63
P25/ANI5
62
P26/ANI6
61
P27/ANI7
60
P150/ANI8
59
P151/ANI9
58
P152/ANI10
57
P153/ANI11
56
P154/ANI12
55
P155/ANI13
54
P156/ANI14 R758 0
53
KEY1
P157/ANI15 R759 0
52
KEY2
AVSS
51
+3.5V_ST
C710
0 . 1 u F
16V
ST_5V
+3.5V_ST
C715
2 . 2 u F
10V
R778
10K
C
R777
10K
B Q711
SOC_RESET
2SC3052
E
+3.5V_ST
P701
12507WS-06L
1
R770 R771
4.7K 4.7K
2
MICOM_RESET
R774
22
3
TOOL0
4
R772
22
5
TOOL1
R773
22
6
FLMD0
7
R7033 R7034 R7035 R7036
10K 10K 10K 10K
2SA1504S
E E E E E
R7041 R7042 R7043 R7044
100 100 100 100
B B B B 13
Q706
C Q703 C Q704 C Q705 C C
12
11
10
9
8
2SC3875S(ALY) 2SC3875S(ALY) 2SC3875S(ALY) 2SC3875S(ALY)
Q714 Q715 Q716 Q717
C C C C
B B B 7
E E E E
6
R7029 R7030 R7031
10K 10K 10K
5
4
3
2
1
IC705
12507WR-12L
KID65003AF
P700
R764
I 1 O1
10
1 16
R763
I 2 O2 10
2 15
R769
I 3 O3 10
3 14
R765
I 4 O4
10
4 13
R766
I 5 O5
10
5 12
R768
I 6 O6 10
6 11
R767
I 7 O7 10
7 10
+5V_ST
GND COMMON
8 9
IC706
SC632ULTRT
[EP]GND
+5V_USB
GND C2-
1
8
C720
+5V_ST
2 . 2 u F D702
C1+ C2+ 10V
2 7
MBRA340T3G
L702
D701 CIC21J501NE
C1- OUT
3 6
MBRA340T3G
IN EN C721
4 275mA 5 C723
10uF 0 . 1 u F
25V
Chameleon(EU_GP2_BCM3556)
2 0 1 0 . 1 2 . 2 0
xxLV375H-ZA
5
NEC MICOM
LGE Internal Use Only