LG 42CQ610H Service Manual page 31

12V power
+12V/+15V +12V_ST
D1600
D1601
MBRA340T3G MBRA340T3G
+12V_C
RESET_high
010:E23
PTC power
+3.5V_ST +3.5V_ST_PTC
L1605
+3.5V_ST_PTC
BLM18PG121SN1D
4.7K
Update_SW
R1615
010:E15
P i l l o w r e m o t e c o n t r o l
+3.5V_ST
L1785
BLM18PG121SN1D
+3.5V_ST
IC1785
C1786
MC14053BDR2G
0 . 1 u F
R2600 Y1 VDD
4.7K
1 16
Y0 Y
+3.5V_ST
2 15
P_CH_DN
014:U17
R2601 4.7K Z1 X
3 14
+3.5V_ST
016:R12 Z X1 R1807
4.7K
4 13
P_CH_UP_1
Z0 X0
5 12
P_CH_UP
014:W25
INH A
R1809 100
6 11
VEE B
R1810 100
7 10
VSS C
R1811 100
8 9
2SC3875S(ALY)
5 V s t a n d - b y p o w e r 1 2 V s t a n d - b y p o w e r
+3.5V_ST
L1610
IC1600
SC632ULTRT
[EP]GND
GND C2- +3.5V_ST
1 8
C1601
2 . 2 u F
10V +5V_ST
C1+ C2+
2 7
C1600
2 . 2 u F
C1- OUT
10V C1602
3 6
0 . 1 u F
16V
IN C1603 OPT
EN C1650
4 5
10uF 0 . 1 u F
25V
50V
C1640
10uF
25V
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 ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+3.5V_ST_PTC
+3.5V_ST_PTC
R2602
4.7K
OPT
100 R1604
C1618
2200pF
C
B Q1615
2SC3875S(ALY)
E
4.7K R1623
R1601
4.7K
+3.5V_ST_PTC
1
3
R1619
4.7K
E
2N3906S-RTK
PTC_RESET
B Q1612 1 2
C
R1621
R1618
3 4
4.7K 4.7K
5
SKHMPWE010
SW502
PTC_UPDATE
006:O24
LED_B/LG_LOGO
LED_R/BUZZ
006:O26
P_CH_DN_1 016:R13
006:R22 KEY1
006:R23 KEY2
P_ON_OFF_1 016:R13
004:A28 RL_ON
R1624 100
004:AJ20
POWER_ON/OFF1
R1634 100
016:N6 DC_DC_EN
bLAN_POWER_MANAGE
011:AF8;011:AG4
P_ON_OFF
014:V20
+3.5V_ST
001:AE7;031:P25
R1812
10K SIDEAV_DET
UART3_TX
UART3_RX
C
Q1785 B 1K
Pillow_POWER_MANAGE
R1813
016:AF17;014:AD9;014:AD6
E H o s p i t a l
H o s p i t a l
D1602
L1600
SMAB34
3.6uH
40V
OPT
C1614
1uF
16V
6 5
SW_1 PGND
R1602
DC_DC_EN OPT
100K
R1 C1608
1%
7 4
100pF
SW_2 AGND
50V
R1603
56K
8 3
1%
C1606 IN EN
C1604
10uF 1uF
10V 10V
9 2
FREQ FB
R1605
R2
10 1 18K
SS COMP
1%
C1605
R1600
0 . 1 u F
TPS61087DRC
[EP]AGND
16V 75K
IC1601
C1607
1200pF
50V
PTC_DEBUG_WAFER
+3.5V_ST_PTC
2
SKHMPWE010
4
SW501
5
+3.5V_ST_PTC
+3.5V_ST_PTC
R1694
100 R1649
100 R1650
C2600
10uF
6.3V
T o M i c r o V C C P i n s
R1657
P 6 . 4 / A 4
100 1
R1658
P 6 . 5 / A 5
100 2
R1659 P 6 . 6 / A 6
3
100
P 6 . 7 / A 7
4
P 7 . 4 / A 1 2
5
P 7 . 5 / A 1 3
6 I C _ m i c r o c o n t r o l l e r
P 7 . 6 / A 1 4
7
R1639 100 IC1602
P 7 . 7 / A 1 5
8
R1651 100 C1616 P5.0/VREF+/VEREF+
1uF 9
OPT P5.1/VREF-/VEREF-
10 MSP430F5419IPZR
C1609 0 R1663
AVCC
27pF
11
AVSS
12
X1600 P7.0/XIN
13
32.768KHz P7.1/XOUT
14
C1610 DVSS
15
20pF
DVCC
OPT 16
P1.0/TA0CLK/ACLK
17
P 1 . 1 / T A 0 . 0
18
P 1 . 2 / T A 0 . 1
19
P 1 . 3 / T A 0 . 2
20
P 1 . 4 / T A 0 . 3
21
P 1 . 5 / T A 0 . 4
22
P1.6/SMCLK
23
P 1 . 7
24
P2.0/TA1CLK/MCLK
25
016:H18
P_ON_OFF_1
R1762
100
016:H18
P_CH_DN_1
R1763
100
016:A17
P_CH_UP_1
R1643
100
+3.5V_ST_PTC
R1677
100
+12V_ST
001:AL24;004:AN28;038:C10
POWER_DET
C1615
22uF
16V
FRAM I2C
+3.5V_ST_PTC
+5V_ST
Q2600
BSS83
D
FRAM_SDA_3.5V
B
S G
FRAM_SDA_5V
C2601
0 . 1 u F
+3.5V_ST_PTC 16V
OPT
Q2601
BSS83
D
FRAM_SCL_3.5V
B
S G
FRAM_SCL_5V
C2602
0 . 1 u F
16V
OPT
R6100 100
FRAM_SCL_3.5V
R6101 100
FRAM_SDA_3.5V
MISO_1
UART_SWB
330 R1701
010:O21
0
+3.5V_ST_PTC
UART_SWA
330 R1702
010:O12
UART SW CONTROL B R1731
10K
470
LD502
R1703
UART SW CONTROL A
470
LD503
R1704
B-LAN
C1626
47pF
50V
P 9 . 7
75
R1691
P 9 . 6 470
74
P9.5/UCA2RXDUCA2SOMI
73
OPT
P9.4/UCA2TXD/UCA2SIMO
72
P9.3/UCB2CLK/UCA2STE
71
P9.2/UCB2SOMI/UCB2SCL
70
P9.1/UCB2SIMO/UCB2SDA
R1727
69 Pillow_POWER_MANAGE
330
P9.0/UCB2STE/UCA2CLK
68
P 8 . 7
67
P 8 . 6 / T A 1 . 1 +3.5V_ST_PTC R1814
66
P 8 . 5 / T A 1 . 0 0 . 1 u F 330
+3.5V_ST_PTC
65
C1621
DVCC2
64
DVSS2
63 R1831
VCORE 10K
62
C1620
P 8 . 4 / T A 0 . 4
61 0 . 4 7 u F
PTC_WOL
P 8 . 3 / T A 0 . 3
60
MISO_1
P 8 . 2 / T A 0 . 2
59 MISO_0
P 8 . 1 / T A 0 . 1
58
P 8 . 0 / T A 0 . 0
57
P 7 . 3 / T A 1 . 2
56
P7.2/TBOUTH/SVMOUT
55
P5.7/UCA1RXD/UCA1SOMI
54
P5.6/UCA1TXD/UCA1SIMO
53
P5.5/UCB1CLK/UCA1STE
52
P5.4/UCB1SOMI/UCB1SCL
51
002:Q3;006:O25
+5V_ST
H o s p i t a l
R1632
SEL_PILLOW_1
330
014:N7
SEL_PILLOW_0
R1633
0 1 4 : F 7 R1723
330
4.7K
B
R1664
100K +3.5V_ST_PTC
+3.5V_ST_PTC
R1724
10K
R1729
100
R1734
C1625
1K
47pF
50V
C
B Q1602
2SC3875S(ALY)
4.7K
R1699
E
+3.5V_ST_PTC
JP1612
JP1613
C1619 C1622
10uF 0 . 1 u F
E 6.3V 50V
R1700
4.7K
2SA1504S
B
Q1603
JP1611
C
330
R1707
100
R1711
UART3_RX
0 1 0 : K 2 3 ; 0 1 0 : N 1 4 ; 0 1 6 : N 1 4 ; 0 1 6 : Y 2 5 100
R1712
UART3_TX
0 1 0 : E 1 6 ; 0 1 0 : E 2 5 ; 0 1 6 : N 1 5 ; 0 1 6 : Y 2 5
+3.5V_ST_PTC
+5V_ST
PTC_FRAM_A type
PTC_FRAM_B type
IC1608
IC1608-*1
FM24C16A
FM24C16B
VDD NC_1
VDD
8 1
8
C6101
0 . 1 u F WP NC_2
WP
7 2
7
SCL NC_3
6 3 SCL
6
SDA VSS
5 4 SDA
5
ZD2600
ZD2601
OPT
OPT
FRAM_SDA_5V
FRAM_SCL_5V
+3.5V_ST_PTC
B-LAN
+5V_ST
IC1606
TXS0104EDR
VCCA VCCB
1 14
R1741 R1756
B-LAN 100 B-LAN 100
A1 B1
2 13 SPI_CLOCK
A2 B2
3 12
R1744 R1757
B-LAN 100 B-LAN 100
A3 B3
4 11 SPI_DIN
R1742 R1758
B-LAN 100 B-LAN 100
A4 B4
5 10 SPI_DOUT
B-LAN +3.5V_ST_PTC
NC_1 NC_2
6 9
B-LAN
R1753
C1627
4.7K
GND OE
0 . 1 u F B-LAN
7 8 B-LAN
C1629 GND_JIG
R2614
0 . 1 u F BLAN CHECK
0
B-LAN GND_JIG
+5V_ST
BLAN CHECK
R2609
CAUTION!!
0
B-LAN +5V_ST b L a n j i g A c t i v e v o l t a g e c h a n g e
R1733
H i g h - - > L o w
B-LAN
100
C
R1740
B-LAN B 4.7K
MPI_DIN
011:L18
B-LAN
R1754
E Q1606
100
2SC3875S(ALY)
MPI_DOUT
B-LAN
C
R1747 +3.5V_ST_PTC
4.7K B Q1608
B-LAN
B-LAN 2SC3875S(ALY)
B-LAN
GND_JIG
R2613
C1628 BLAN CHECK E
0
47pF
L1602
50V
016:J14;014:AD9;014:AD6
001:AL22;009:U20;014:AA23
PILLOW_MUTE
C
B
Q1611
H o s p i t a l 2SC3875S(ALY)
E
R1760
+3.5V_ST_PTC
R1755 100K
R1750
10K 10K
100 R1761
R1745
10K
C
R1746
B Q1609 +3.5V_ST_PTC
2SC3875S(ALY)
IR
C
4.7K
E
B Q1607
R1748
L1603
10K
R1738
2SC3875S(ALY)
100K E
R1759
100K OPT
R1824
0
B-LAN C
0 R1752 B
B-LAN Q1610
R1732
011:AA18
100 2SC3875S(ALY)
RJ12_MPI_DOUT
E
C
Q1604
2SC3875S(ALY)
E
+5V_ST
C
R1736
B 4.7K
RJ12_MPI_DIN 011:AB21
E Q1605
2SC3875S(ALY)
E_SPRING 3
PEJ027-04
JK9904
42LD6DDH-UA 2 0 1 1 . 1 2 . 0 1
PTC 16
LGE Internal Use Only
NC_1
1
NC_2
2
NC_3
3
VSS
4
011:N16
011:N16
011:N17
011:L17
C1630
0 . 0 1 u F
RJ12_IR_MPI_MODEM
011:AE16
bLAN_IR_IN_MODEM
011:N16