LG 32LD450 / 32LD450N / 32LD455 / 32LD458 (CHASSIS:LD01B) 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.
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.
R1634
12K
DTV/MNT_L_OUT
C1625
0.1uF
0.1uF
50V
EU_OPT
COMP2_Pr+
R1678
680
680
OPT
AV_CVBS_DET
+3.3V_Normal
C1663
330pF
50V
R1625
470K
470K
R1640
470
EU_OPT
D1605
30V
R1684
10K
10K
R1609
75
75
EU_OPT
Q1611
2SC3052
2SC3052
EU_OPT
E
B
C
R1621
75
COMP2_Y+
R1671
470K
R1627
22
EU_OPT
D1611
5.6V
OPT
C1620
100uF
16V
100uF
16V
EU_OPT
R1622
0
0
EU_OPT
C1603
10pF
10pF
OPT
L1609
120-ohm
D1618
30V
OPT
DTV/MNT_VOUT
L1601
BLM18PG121SN1D
BLM18PG121SN1D
EU_OPT
Q1613
2SC3052
2SC3052
EU_OPT
E
B
C
COMP2_L_IN
SCART1_MUTE
D1606
30V
D1602
30V
OPT
D1626
5.6V
0
R1659
C1613
10pF
50V
10pF
50V
OPT
R1620
75
C1604
47pF
50V
47pF
50V
EU_OPT
+3.3V_Normal
C1618
4700pF
4700pF
EU_OPT
D1612
30V
R1654
75
75
R1666
1K
DTV/MNT_L_OUT
R1638
0
0
COMP2_Pb-
AV_L_IN
Q1601
ISA1530AC1
EU_OPT
E
B
C
R1628
75
75
EU_OPT
REC_8
R1648
2K
2K
EU_OPT
R1676
560
560
OPT
+12V/+15V
R1618
10K
10K
D1616
5.6V
L1602
BLM18PG121SN1D
BLM18PG121SN1D
EU_OPT
SC1_G-/COMP1_Y-
C1621
47uF
16V
47uF
16V
EU_OPT
R1690
0
0
EU_OPT
R1637
0
0
SC1/COMP1_DET
R1619
75
75
D1610
30V
OPT
DTV/MNT_R_OUT
DTV/MNT_R_OUT
R1631
12K
12K
C1659
OPT
OPT
R1645
0
EU_OPT
R1639
180
EU_OPT
D1601
5.6V
OPT
D1607
5.6V
OPT
R1632
10K
10K
D1603
30V
OPT
SC1_CVBS_IN
C1662
330pF
50V
330pF
50V
L1603
120-ohm
+3.3V_Normal
C1642
0.1uF
50V
0.1uF
50V
EU_OPT/CHINA_HOTEL_OPT
R4202
0
EU_OPT
2SC3052
Q1608
EU_OPT
R1636
12K
C1611
330pF
50V
330pF
50V
SC_RE2
R1641
47K
47K
EU_OPT
R1669
0
0
EU_OPT
D1619
30V
C1614
10pF
50V
OPT
SC1_ID
C1615
10pF
50V
OPT
D1613
5.6V
SC1_B+/COMP1_Pb+
L1606
EU_OPT
SC1_R+/COMP1_Pr+
COMP2_Pr-
+12V/+15V
R1689
12K
2SC3052
Q1607
EU_OPT
R1633
10K
10K
R1672
470K
R1685
10K
10K
COMP2_R_IN
C1602
10pF
10pF
OPT
C1658
OPT
OPT
JK1601
PPJ-230-01
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
R1642
15K
15K
EU_OPT
Q1615
2SC3052
2SC3052
EU_OPT
E
B
C
Q1602
2SC3052
2SC3052
EU_OPT
E
B
C
R1616
75
75
EU_OPT
C1612
330pF
50V
R1617
10K
10K
R1607
470K
R1601
0
SC1/COMP1_L_IN
R1614
1K
C1648
220pF
50V
220pF
50V
OPT
R1605
75
C1606
OPT
R1608
75
75
C1623
0.1uF
0.1uF
50V
EU_OPT
R1675
2K
OPT
R1688
12K
R1650
2K
EU_OPT
D1615
30V
C1610
1000pF
50V
EU_OPT
COMP2_Y-
SC1_FB
SC1/COMP1_R_IN
C1601
10pF
10pF
OPT
R1604
75
D1625
5.6V
0
R1611
EU_OPT
C1607
0.1uF
16V
0.1uF
16V
C1616
1000pF
50V
1000pF
50V
D1608
5.6V
OPT
5.6V
D1617
SC1_G+/COMP1_Y+
SC1_R-/COMP1_Pr-
R1630
12K
12K
D1614
30V
L1610
120-ohm
R1677
10K
10K
EU_OPT
R1695
12K
12K
EU_OPT
COMP2_DET
R1652
10K
OPT
C1608
220pF
50V
OPT
220pF
50V
OPT
C1643
47pF
50V
47pF
50V
C1636
0.1uF
0.1uF
EU_OPT
L1604
120-ohm
C1646
0.1uF
16V
0.1uF
16V
R1615
1K
1K
R1680
1K
EU_OPT
C1609
1000pF
50V
50V
EU_OPT
C1619
4700pF
4700pF
EU_OPT
+12V/+15V
R1624
0
0
EU_OPT
D1609
5.6V
OPT
C1617
1000pF
50V
1000pF
50V
COMP2_Pb+
SC1_B-/COMP1_Pb-
+3.5V_ST
SC_RE1
Q1610
RT1P141C-T112
EU_OPT
1
2
3
C1605
OPT
AV_R_IN
R4207
51K
OPT
51K
OPT
D1604
30V
R1626
470K
R1606
470K
AV_CVBS_IN
R1602
0
R1681
1K
EU_OPT
R1694
10K
19~22
R4205
2.2K
2.2K
19~22
R4205-*1
0
0
26~52
JK1603
PPJ234-01
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
R1660
10K
10K
R1613
10K
R1612
10K
R1623
15K
15K
EU_OPT
R1629
3.9K
3.9K
EU_OPT
REC_8
D1716
30V
EU_OPT
SC1_SOG_IN
0
R4210
EU_OPT
IC1601
LM324D
LM324D
EU_OPT/CHINA_HOTEL_OPT
3
3
2
2
4
4
1
1
6
6
5
5
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
SCART1_Rout
R1658
5.6K
5.6K
EU_OPT/CHINA_HOTEL_OPT
R1657
5.6K
5.6K
EU_OPT
SCART1_Lout
R1667
10K
10K
EU_OPT
R1656
2.2K
2.2K
EU_OPT
C1654
33pF
EU_OPT
R1662
470K
470K
OPT
R1664
33K
33K
EU_OPT
C1644
10uF
16V
10uF
16V
EU_OPT
R1665
33K
33K
EU_OPT/CHINA_HOTEL_OPT
R1661
470K
470K
OPT
R1655
2.2K
2.2K
EU_OPT/CHINA_HOTEL_OPT
C1645
10uF
16V
10uF
16V
EU_OPT/CHINA_HOTEL_OPT
C1655
33pF
EU_OPT/CHINA_HOTEL_OPT
R1668
10K
EU_OPT/CHINA_HOTEL_OPT
JK1604
PPJ233-01
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
R1635
390
390
EU_OPT
R4211
390
390
EU_OPT
R4212
0
HOTEL_OPT
AUDIO_R
R4213 0
R4214 0
R4215
0
C1665
0.01uF
R4216
100
R4217
22K
R4219
100
C1664
0.01uF
R4218
22K
R4220
0
R4221
0
EU_OPT
R4224
0
EU_OPT
JK1602
PSC008-01
EU_OPT
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
D1624
5.6V
5.6V
R4223 0
R1687
10K
10K
EU_OPT
DTV/MNT_R_OUT
DTV/MNT_L_OUT
R1603
0
SCART/RCA
GP2_Saturn7M
Rf
STATUS
China : Using
NAME
AV_OPT
Full Scart/ Comp1
CHINA_OPT
China : Using
Composite
COMPONENT2
EU :Using
EU_OPT
Rg
OPTION TABLE
[SCART PIN 8]
For EU & CHINA
EU : Not Using
EU : Not Using
China:NotUsing
Gain=1+Rf/Rg
[SCART AUDIO MUTE]
CLOSE TO MSTAR
Ver. 1.1
41
IN CASE OF SMALL= 15V
IN CASE OF SMALL= 15V
FOR ESD & EMI
FOR ESD & EMI
FOR ESD & EMI
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.
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.
BT_LOUT
BT_DM
BT_ON/OFF
BT_DP
GP2_Saturn7M
NON B/T
NOT USING B/T
Ver. 1.0
44
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.
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.
CI_DATA[6]
CI_ADDR[0]
CI_DATA[4]
PCM_D[0-7]
FE_TS_DATA[1]
CI_ADDR[7]
CI_DATA[7]
PCM_D[2]
CI_DATA[0]
PCM_D[0]
CI_ADDR[2]
CI_DATA[0-7]
FE_TS_DATA[2]
FE_TS_DATA[5]
CI_ADDR[6]
PCM_D[7]
CI_DATA[3]
CI_ADDR[3]
CI_DATA[1]
FE_TS_DATA[3]
CI_ADDR[4]
CI_DATA[7]
CI_DATA[1]
CI_ADDR[10]
CI_ADDR[5]
CI_ADDR[14]
@netLa
PCM_D[6]
CI_ADDR[12]
CI_DATA[5]
CI_DATA[2]
FE_TS_DATA[7]
CI_DATA[5]
CI_ADDR[13]
CI_ADDR[11]
PCM_D[5]
CI_DATA[0]
CI_DATA[4]
FE_TS_DATA[0]
PCM_D[4]
CI_DATA[0-7]
CI_DATA[0-7]
PCM_D[1]
FE_TS_DATA[4]
CI_DATA[2]
CI_ADDR[8]
PCM_D[3]
FE_TS_DATA[6]
CI_DATA[6]
CI_DATA[3]
CI_ADDR[1]
CI_ADDR[9]
+3.3V_CI
CI_MDI[0]
CI_DET
CI_TS_VAL
/CI_CD1
R1919
47
PCM_A[0]
CI_WE
CI_IORD
R1905
10K
C1910
0.1uF
16V
/PCM_CD
FE_TS_VAL_ERR
/PCM_OE
CI_ADDR[1]
/PCM_IRQA
/PCM_IORD
CI_ADDR[13]
AR1901
33
+3.3V_CI
CI_DET
PCM_A[8]
/CI_CD2
CI_TS_DATA[0]
PCM_A[4]
IC1901
KIC7SZ32FU
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
R1907
100
CI_ADDR[6]
R1913
10K
10K
AR1905
33
+5V_Normal
Q1901
2SC3052
2SC3052
E
B
C
R1904
10K
C1909
0.1uF
FE_TS_SYNC
PCM_A[1]
REG
CI_TS_DATA[4]
R1910
0
OPT
C1902
0.1uF
GND
IC1902
TC74LCX244FT
0ITO742440D
TOSHIBA
3
2Y4
2
1A1
4
1A2
1
1OE
6
1A3
5
2Y3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
2OE
20
VCC
C1905
0.1uF
PCM_A[11]
R1917
10K
C1903
0.1uF
16V
0.1uF
16V
CI_ADDR[8]
C
1
9
0
8
0
.
1
u
F
1
6
V
CI_ADDR[4]
R1909
0
OPT
R1906
10K
/PCM_IOWR
CI_MISTRT
GND
R1916
0
OPT
CI_TS_DATA[6]
AR1913
33
PCM_A[6]
/CI_CD2
+5V_CI_ON
R1918
47
PCM_A[14]
PCM_A[12]
CI_ADDR[0-14]
R1915
47
+5V_Normal
CI_OE
CI_TS_DATA[5]
CI_MCLKI
PCM_RST
GND
AR1902
33
CI_ADDR[7]
CI_MDI[2]
CI_ADDR[12]
CI_ADDR[11]
PCM_D[0-7]
R1908
100
C1901
0.1uF
AR1904
33
/PCM_CE
FE_TS_DATA[0-7]
PCM_A[13]
PCM_A[10]
CI_ADDR[3]
REG
CI_MDI[6]
AR1903
33
CI_TS_CLK
+3.3V_Normal
AR1907
33
PCM_5V_CTL
CI_MISTRT
CI_MDI[1]
CI_ADDR[0]
C1913
0.1uF
16V
0.1uF
16V
R1920
100
CI_ADDR[5]
P1901
10067972-000LF
EAG41860102
G1
G2
57
21
52
16
10
47
41
5
36
59
23
45
54
18
49
43
13
7
38
2
25
56
20
51
15
9
46
40
4
35
58
22
53
17
11
48
42
12
6
37
1
24
55
19
50
44
14
8
39
3
26
60
27
61
28
62
29
63
30
64
31
32
33
34
65
66
67
68
69
PCM_A[2]
CI_MDI[2]
CI_OE
CI_DATA[0-7]
AR1909
33
C1904
0.1uF
16V
0.1uF
16V
AR1908
33
CI_MDI[5]
CI_MDI[4]
PCM_A[9]
CI_MDI[3]
+3.3V_CI
R1903
10K
CI_IOWR
CI_MIVAL_ERR
CI_WE
R1911
0
CI_ADDR[2]
CI_MDI[0]
+3.3V_CI
CI_TS_SYNC
CI_TS_DATA[2]
CI_MDI[4]
CI_TS_DATA[1]
PCM_A[7]
CI_ADDR[14]
AR1912
33
CI_MDI[7]
CI_IORD
CI_TS_DATA[3]
C1912
0.1uF
16V
0.1uF
16V
GND
R1901
47
CI_MDI[1]
CI_IOWR
/PCM_REG
C1907
0.1uF
16V
16V
GND
R1921
10K
CI_MDI[6]
R1902
47
+5V_CI_ON
+5V_Normal
CI_MDI[7]
CI_ADDR[9]
CI_MDI[5]
CI_MIVAL_ERR
FE_TS_CLK
/PCM_WAIT
PCM_A[5]
CI_ADDR[10]
/PCM_WE
CI_MDI[3]
R1914
22K
22K
R1912
10K
OPT
GND
PCM_A[3]
/CI_CD1
CI_MCLKI
C1906
10uF
10V
10uF
10V
CI_TS_DATA[7]
Q1902
RSR025P03
S
D
G
AR1906
33
CI_DATA[0-7]
L1901
BLM18PG121SN1D
L1902
BLM18PG121SN1D
R1922
2.2K
C1911
4.7uF
16V
4.7uF
16V
OPT
R1923
10K
OPT
R1924
10K
PCMCI
CI POWER ENABLE CONTROL
CI DETECT
CI SLOT
CI HOST I/F
CI Region
CI TS INPUT
GP2_Saturn7M
Ver. 1.0
45
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.
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.
TP2109
EPHY_TXD1
EPHY_RXD1
EPHY_CRS_DV
TP2107
TP2111
/RST_PHY
TP2101
EPHY_EN
TP2110
TP2108
TP2104
TP2103
EPHY_RXD0
EPHY_REFCLK
EPHY_MDIO
TP2106
EPHY_MDC
EPHY_TXD0
TP2105
ET_RXER
TP2102
NON ETHERNET
Ver. 1.0
GP2_Saturn7M
NON ETHERNET
48
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