DOWNLOAD LG 42PA450C-CM (CHASSIS:PA23A) Service Manual ↓ Size: 19.08 MB | Pages: 108 in PDF or view online for FREE

Model
42PA450C-CM (CHASSIS:PA23A)
Pages
108
Size
19.08 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pa450c-cm-chassis-pa23a.pdf
Date
PREV: LG 23WL55A / 23WL55E / 23WL55H / 23WL55M / T23WL55E-ZA / 23WL55R / 23WL55T (CHASSIS:ML-05TA) Service Manual

LG 42PA450C-CM (CHASSIS:PA23A) Service Manual ▷ View online

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.
PCM_A[0]
PCM_A[4]
PCM_A[1]
PCM_A[7]
PCM_A[2]
PCM_A[6]
PCM_A[5]
PCM_A[3]
R573
22
IC503
AT24C256C-SSHL-T
ATMEL_IC503
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R571
22
READY
/PF_CE1
RXA4+
RXACK+
AR519
22
RXA2-
R579
2K
R542
10K
R565
1K
RXA1+
RXA4-
RXB3+
RXB2+
PC_SER_DATA
R569
4.7K
READY
/PF_CE0
PC_SER_CLK
R516
100
RXA2-
+3.3V
RXBCK+
R515
4.7K
USA
I2C_SDA
R577 4.7K
RXB4-
RXA0+
C547
0.1uF
16V
/PF_WP
P_SDA
I2C_SCL
IC502
CAT24C08WI-GT3-H-RECV(TV)
READY
3
A2
2
NC_2
4
VSS
1
NC_1
5
SDA
6
SCL
7
WP
8
VCC
RXB0+
SPI_SCK
R538
4.7K
RXB2-
/PF_OE
RXB1+
+3.3V_ST
+3.3V_ST
RXACK+
KEY1
RXA4-
RXB2-
RXB2+
R574
22
RXB1-
IC504
H27U1G8F2BTR-BC 
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
R/B
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
P501
12507WS-08L
1
2
3
4
5
6
7
8
9
PF_ALE
C523
10pF
50V
READY
+3.3V
R518
100
RXBCK+
UART_RXD
RXB3-
RXA1+
RXB0-
PCM_A[0-7]
KEY2
R517
100
P503
TF05-51S
HD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
R556
3.3K
RXB3-
C555
0.1uF
+3.3V_ST
SPI_SDO
/FLASH_WP
R514
22
+3.3V
R536
22
ZD500
DUP_DVB
ZD502
5.48VTO5.76V 
DUP_DVB
I2C_SDA
ZD505
DUP_DVB
R519
100
R537
22
+5V
RXA0-
RXA4+
IC505
W25Q80BVSSIG
3
%WP[IO2]
2
DO[IO1]
4
GND
1
CS
5
DI[IO0]
6
CLK
7
HOLD[IO3]
8
VCC
C522
10pF
50V
READY
RXA1-
R572
22
READY
C556
0.1uF
R540
10K
RXB1-
+3.3V_ST
SPI_SDI
LD500
+3.3V_ST
RXA3+
+3.3V_ST
RXB4+
R575
33
P500
104060-8017
FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
/PF_WE
RXA3-
/F_RB
RXBCK-
RXB3+
/SPI_CS
RXA3+
RXA2+
ZD506
DUP_DVB
RXA0-
Q500
MMBT3904(NXP)
DUP_AT
E
B
C
+3.3V_ST
R567
1K
IC505-*1
MX25L8006EM2I-12G
MX
3
WP#
2
SO/SIO1
4
GND
1
CS#
5
SI/SIO0
6
SCLK
7
HOLD#
8
VCC
RXA0+
UART_TXD
+5V
IR
C517
10pF
50V
RXA2+
C552
0.1uF
RXACK-
LED_RED
R570
4.7K
READY
R520
100
SUB_SDA
DISP_EN
RXA3-
R563
4.7K
READY
C520
10pF
50V
RXB0-
R568
4.7K
R564
10K
+3.3V
RXACK-
RXA1-
RXB4+
AR518
22
RXB0+
I2C_SCL
C554
10uF
1
0
V
RXBCK-
RXB4-
SUB_SCL
ZD504
DUP_DVB
R512 4.7K
P_SCL
ZD501
DUP_DVB
R513 4.7K
ZD507
DUP_DVB
C550
0.1uF
IC504-*1
K9F1G08U0D-SCB0
SS
26
NC_17
27
NC_18
28
NC_19
29
I/O0
30
I/O1
31
I/O2
32
I/O3
33
NC_20
34
NC_21
35
NC_22
36
VSS_2
37
VCC_2
38
NC_23
39
NC_24
40
NC_25
41
I/O4
42
I/O5
43
I/O6
44
I/O7
45
NC_26
46
NC_27
47
NC_28
48
NC_29
17
ALE
3
NC_3
6
NC_6
16
CLE
15
NC_10
14
NC_9
13
VSS_1
12
VCC_1
11
NC_8
10
NC_7
9
CE
8
RE
7
R/B
4
NC_4
5
NC_5
25
NC_16
24
NC_15
23
NC_14
2
NC_2
22
NC_13
21
NC_12
1
NC_1
20
NC_11
19
WP
18
WE
RXB1+
IC503-*1
R1EX24256BSAS0A
Renesas_IC503
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R578
47K
R539
4.7K
ZD503
DUP_DVB
ZD503-*1
5.6B
DUP_AT
ZD505-*1
5.6B
DUP_AT
ZD504-*1
5.6B
DUP_AT
ZD507-*1
5.6B
DUP_AT
ZD506-*1
5.6B
DUP_AT
ZD502-*1
5.6B
DUP_AT
ZD501-*1
5.6B
DUP_AT
ZD500-*1
5.6B
DUP_AT
Q500-*1
2SC3052
DUP_DVB
E
B
C
D500
MMBD6100
DUP_DVB
A2
C
A1
D500-*1
KDS184
DUP_AT
A2
C
A1
C535
0.1uF
16V
C534
0.1uF
16V
Memory.LVDS,IR
GP4_S7LR
5
HDCP EEPROM
8KBit
Addr:10101--
EEPROM
1MBit
A0’h
SERIAL FLASH
8MBit
2011-10-20
NAND Flash
1GBit
LVDS
Key/IR
* LCI: LVDS Connection Indicator
6
THERMAL
THERMAL
T
H
E
R
M
A
L
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.
R641
22
R613
100
5%
C651
22uF
16V
AMP_SCL
P_17V
R640
22
C675
0.22uF
50V
C661
0.022uF
16V
C634
10uF
16V
C681
1000pF
50V
C610
0.1uF
16V
C620
10uF
25V
+1.5V_DDR
C677
0.22uF
50V
IC602
AP1117EG-13 
FNIM
ADJ/GND
OUT
IN
AUD_MASTER_CLK
R655
100K
1%
R626
0
R653
6.8K
1%
R631
390K
1%
C678
1000pF
50V
P600
SMAW200-H18S1
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
15
10
5
19
+2.5V
+3.3V_ST
C683
22uF
16V
+2.5V_TU
C608
10uF
10V
R648 120K
R624
2K
C673
0.22uF
50V
R656
47K
1%
C646
0.1uF
50V
C638
0.1uF
50V
R637
0
+3.3V
+5V_ST
+5V
R657
43K
1%
R638
22
R612
1
C643
0.1uF
50V
R634
56K
C654
10uF
25V
R639
10K
R643
22
DCON_EN
C625
10uF
6.3V
FNIM
+1.8V_TU
L606 CIS21J121
DUP_AT
R615 1 FNIM
R609
100
+3.3V
C674
0.22uF
50V
R627
10K
READY
DCON_EN
C600
10uF
10V
R642
22
R661
10K
L612
10.0uH
R687
39
+5V_ST
C660
0.1uF
50V
C609
3300pF
READY
EMI_GND1
L613
120-ohm
2A
DVB_T2
+1.25V_TU
P_17V
P
6
0
1
S
M
A
W
2
5
0
-
H
0
4
R
1
2
3
4
ERROR_DET
R614
220
5%
L610
10.0uH
C663
0.1uF 50V
R620
1
FNIM
+1.10V_VDDC
C644
22pF
50V
READY
R635 10K
C666
0.022uF
16V
R619
17.4K
1%
C672
0.22uF
50V
R633
10K
DCON_EN
R686
39
C627
10uF
6.3V
R602
0
Q600
MMBT3904(NXP)
READY
E
B
C
R601
0
5V_ON
C649
0.01uF
AC_DET
C640
22pF
50V
READY
R644
22
C639
22pF
50V
READY
C628
4700pF
50V
+3.3V_TU
C650
10uF
16V
AUD_LRCH
C632
4.7uF
10V
+5V
C680
1000pF
50V
R645
22
R625
2.2
R654
51K
1%
L604
120-ohm
2A
DUP_AT
IC605
TPS65253RHDR
1
ROSC
3
CMP1
7
BST1
9
LX1_1
10
LX1_2
11
LX2_1
12
LX2_2
13
VIN2
14
BST2
15
EN2
16
RLIM2
17
SS2
18
CMP2
19
FB2
20
LOW_P
21
V7V
22
V3V
23
GND_1
24
PGOOD
25
GND_2
26
GND_3
27
GND_4
28
GND_5
5
RLIM1
8
VIN1
6
EN1
4
SS1
2
FB1
29
[EP]GND
C656
22uF
16V
R618
240
FNIM
R636
0
READY
R629
2K
R630
3K
1%
IC604
AZ1117BH-ADJTRE1
OUTPUT
INPUT
ADJ/GND
C629
10uF
16V
C670
330pF
50V
C635
22pF
50V
READY
C664 1uF
25V
R604
0
R688
39
C606
0.1uF
16V
IC603
TPS54327DDAR
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
IC601
TJ3940S-2.5V-3L
1
GND
2
VOUT
3
VIN
+3.3V
AMP_MUTE
AUD_LRCK
AUD_SCK
L609
10.0uH
R617
59K
1%
RL_ON
C655
0.047uF
25V
+3.3V
R628
10K
READY
C612
10uF
6.3V
R605
0
IC600
AP2121N-3.3TRE1 
1
GND
2
VOUT
3
VIN
P_17V
C642
0.01uF
R647 100K
C653
10uF
25V
C669
330pF
50V
R685
39
L605
NR5040T2R2N 
2.2uH
C633
0.1uF
16V
L608
NR5040T3R3N
R662
56K
C604-*1
1uF
10V
DUP_AT
C637
4700pF
50V
R670
4.7
READY
C621
0.1uF
50V
C630
0.1uF
16V
C667
0.1uF
50V
C607
0.1uF
16V
C676
0.22uF
50V
C682
0.1uF
16V
DVB_T2
C604
1uF
6.3V
DUP_DVB
C601
0.1uF
16V
C624
1uF
10V
R649 33K
R646
22
L607
NR5040T3R3N
C679
1000pF
50V
R608
0
C645
3300pF
C631
10uF
6.3V
R600
10K
C617
10uF
6.3V
FNIM
IC606
STA368BWG
26
GND_PLL
27
XTI
28
BICKI
29
LRCKI
30
SDI
31
RESET
32
INT_LINE
33
SDA
34
SCL
35
GND_DIG_2
36
VDD_DIG_2
17
OUT3B/FFX3B
3
TEST_MODE
6
OUT2B
16
CONFIG
15
VDD
14
GND_REG
13
OUT1A
12
GND1
11
VCC1
10
OUT1B
9
OUT2A
8
VCC2
7
GND2
4
VSS
5
VCC_REG
2
SA
21
VDD_DIG_1
1
GND_SUB
20
TWARN/OUT4A
19
EAPD/OUT4B
18
OUT3A/FFX3A
23
PWRDN
24
VDD_PLL
25
FILTER_PLL
22
GND_DIG_1
3
7
[EP]GND
EMI_GND4
R666
4.7
READY
R606
0
C665
0.1uF 50V
R650
33K
C611
3300pF
50V
READY
C671
10uF
10V
DVB_T2
R607
0
AMP_SDA
+3.3V
EMI_GND2
R623
2K
C647
680pF
50V
C652
0.047uF
25V
+3.3V_ST
C662 1uF
25V
AMP_RESET_N
GND
EMI_GND3
C626
3300pF
50V
R621
1
C668
68uF
35V
C636
3300pF
L600
120
DUP_AT
L611
10.0uH
C657
22uF
16V
AC_DET
C659
0.1uF
50V
R603
0
L613-*1
CB1608UA121T
DUP_DVB
L604-*1
CB1608UA121T
DUP_DVB
L600-*1
MLB-201209-0120P-N2
DUP_DVB
L606-*1
MLB-201209-0120P-N2
DUP_DVB
C687
330pF
50V
C684
330pF
50V
C685
330pF
50V
C686
330pF
50V
L601
500-ohm
Power,AMP
GP4_S7LR
6
2011-04-01
Close-by
Close-by
Close-by
Close-by
Audio AMP
Power Wafer
+3.3V Multi
1.5V DDR / 1.24V Core
Vout=0.765*(1+R1/R2)
3.3V_TU /1.8V_TU
3.3Vst
2.5V Multi/2.5_TU
Vout=1.25*(1+R2/R1)
1.25V_TU
R1
R2
Vout=0.8*(1+R1/R2)
R1
R2
R1
R2
R1
R2
R2
R1
EMI GND 
Vout=1.25*(1+R2/R1)
P/NO : MFL67450443
2007
04
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