LG 32LD660 / 32LD665H (CHASSIS:LA05C) 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.
0.01uF
25V
C1637
100K
R1605
10K
SEMTECH
R1602
10K
1%
R1630
MP2108DQ
EAN60991601
DEV
IC1606
3
LX
2
VIN
4
PGND
1
BST
5
SGND
6
SS
7
FB
8
COMP
9
VREF
10
RUN
10K
BCD
R1603
0 . 1 u F
C1643
18K
1%
1%
SEMTECH
R1604
100pF
50V
OPT
C1641
+5V_DEVICE
MLB-201209-0120P-N2
L1601
0 . 1 u F
C1607
10
R1610
MLB-201209-0120P-N2
L1613
10K
BCD
R1601
0 . 0 1 u F
25V
25V
C1638
30K
1%
R1624
XMARK_1.8V
AZ1117BH-1.8TRE1
I C 1 6 0 5 - * 2
BCD
2
OUT
3
IN
1
ADJ/GND
+3.5V
+3.3V
4.7K
1%
1%
BCD
R1604-*1
0 . 1 u F
16V
16V
C1610
OPT
15K
1% BCD
1% BCD
R1606-*1
+1.2V_BCM_EN
5:N17
0 . 1 u F
OPT
C1604
0 . 1 u F
C1611
OPT
1/10W
10K
1%
R1629
0 . 1 u F
16V
16V
C1628
OPT
0 . 1 u F
C1626
SC4215ISTRT
IC1602-*1
SEMTECH
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
2uH
L1602
0 . 0 1 u F
25V
25V
C1640
+A_1.2V
+2.5V
910K
1%
1%
R1626
0 . 1 u F
C1616
0 . 1 u F
OPT
C1603
BLM18PG121SN1D
L1604
XMARK
THERMAL
AP2132MP-2.5TRG1
BCD
IC1602
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[ E P ]
47K
R1625
3300pF
50V
DEV
C1639
39K
1%SEMTECH
1%SEMTECH
R1606
0 . 1 u F
16V
C1635
+D_1.2V
NR8040T3R6N
3.6uH
L1615
AP1117E18G-13
I C 1 6 0 5 - * 1
DIODES
2
OUT
3
IN
1
ADJ/GND
+3.5V_ST
0
R1614
MLB-201209-0120P-N2
L1600
BLM18PG121SN1D
L1605
+3.5V
10K
R1628
0 . 1 u F
C1608
470K
1%
R1615
MAIN_PWR_ON
5 : N 1 8 ; 4 : B 2 6
0 . 1 u F
C1602
THERMAL
MP2208DL-LF-Z
EAN60911601
DEV
IC1603
3
PGND_1
2
SS
4
SW_1
1
AGND
6
NC
5
IN_1
7
BS
8
VCC
9
POK
10
IN_2
11
SW_2
12
PGND_2
13
EN/SYNC
14
FB
15
EP
0
R1623
NFM18PS105R0J
6.3V
C1612
OUT
IN
GND
AZ1117H-1.8TRE1(EH13A)
IC1605
AAC
2
OUTPUT
3
INPUT
1
ADJ/GND
C1614
OUT
IN
GND
+3.5V_ST
+D_1.8V
6.8K
R1627
GND
+1.8V_DDR
10K
R1621
10uF
6.3V
C1601
22uF
6.3V
C1606
1uF
6.3V
6.3V
C1617
22uF
6.3V
C1633
22uF
6.3V
6.3V
C1636
22uF
6.3V
C1630
22uF
6.3V
C1642
22uF
6.3V
C1634
22uF
C1620
OPT
22uF
6.3V
6.3V
C1613
22uF
6.3V
6.3V
C1632
120-ohm
BCD
L1603
BLM18PG121SN1D
L1614
10uF
6.3V
C1605
OPT
22uF
6.3V
6.3V
C1609
POWER_ST5V
16
18
32/37/42LD660H
2 0 1 0 . 1 2 . 1 3
R1
VOUT : 2.533V
R2
Vout=0.9*(1+R1/R2)
A2.5V
Placed on SMD-TOP
S C 4 2 1 5 V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
1.8V_DDR_BCM3549P
* D_1.8V
CLOSE TO LG1001
* +1.8V_DDR for DDR/ BCM3549
3A
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R e p l a c e d P a r t
Placed on SMD-TOP
R1
R2
R1
Max 1100 mA
B C M c o r e 1 . 2 V v o l t
R2
AP2132 Vout=0.6*(1+R1/R2)
MAX 3.1A
VOUT : 2.566V
C IN
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.
THIRD_CVBS_INCM
1 1 : E 1 2
34
R1704
0
R1731
100pF
C1742
470K
R1755
470K
R1759
SIDE_R_IN
1 0 : I 7
75
R1761
100pF
C1718
SIDE_L_IN
1 0 : I 8
/SIDE_DET
M10
SIDE_CVBS
15:B16
/SIDE_AV_DET
9 : A J 2 4 ; 5 : N 1 5
/SIDE_DET
I 1 1
0.1uF
C1704
0
R1762
0
R1756
P P J 2 3 5 - 0 1
JK1701
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A [YL]CONTACT
4B
[WH]O-SPRING
3C [RD]CONTACT
4C
[RD]O-SPRING
5C
[RD]E-LUG
+3.5V_ST
1K
R1772
0
R1771
0
R1780
75
OPT
OPT
R1726
3.3K
R1753
10K
R1705
22pF
C1703
0
R1784-*1
RGB_NO_BEAD
RGB_VS
1 1 : E 1 0
10K
R1766
+5V_DEVICE
0
R1760
GPIO_IIC_SCL
9 : A J 2 7
COMP_Pb
1 1 : E 1 6
34
R1733
470K
R1774
0 . 1 u F
C1736
0.1uF
C1714
COMP_VID_INCM
1 1 : E 1 6
0 . 1 u F
C1730
COMP_INCM
1 0 : I 8
75
R1714
KDS184
D1700
A2
C
A1
22
R1749
27pF
C1734
/COMP_DET
M17
/REAR_AV_DET
9 : A J 2 4
15K
R1712
BG1608B121F
R1783
RGB_BEAD
27pF
C1709
22
R1715
27pF
C1712
0
R1735
REAR_R_IN
1 0 : I 9
0 . 1 u F
C1743
5.1K
R1742
5.1K
R1743
470K
R1730
0
R1783-*1
RGB_NO_BEAD
470K
R1732
22
R1776
COMP_Pr
1 1 : E 1 7
15K
R1718
REAR_CVBS
15:B18
0
R1781
/COMP_DET
O25
0
R1782-*1
RGB_NO_BEAD
27pF
C1722
PC_R_IN
1 0 : I 7
22pF
OPT
C1733
0
R1702
PC_L_IN
1 0 : I 7
470
R1728
470K
R1727
10K
R1723
5 . 1
R1741
+5V_DEVICE
34
R1700
RGB_HS
1 1 : E 1 0
5 . 1
R1775
0
OPT
R1717
SPG09-DB-010
P1700
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
BG1608B121F
R1784
RGB_BEAD
27pF
C1707
75
OPT
OPT
R1737
22
R1752
0
OPT
R1757
GPIO_IIC_SDA
R_VID_INCM
1 1 : E 1 8
0
R1764
1K
R1765
/DSUB_DET
9 : A J 2 3
27pF
C1706
1K
R1721
0
R1750
0
OPT
R1754
+5V_DEVICE
REAR_INCM
1 0 : I 9
COMP_L_IN
1 0 : I 9
/COMP_AV_DET
9 : A J 2 4
75
R1725
75
OPT
OPT
R1736
10uF
16V
16V
C1729
OPT
75
R1768
G_VID_INCM
1 1 : E 1 7
P E J 0 2 7 - 0 4
JK1703
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
RGB_B
1 1 : E 1 7
100pF
C1720
1K
R1707
/REAR_DET
O28
75
R1719
+5V_DEVICE
1K
R1758
22pF
OPT
OPT
C1719
470
R1708
15K
R1720
0
R1709
22
R1747
0
R1770
34
R1701
COMP_Y
1 1 : E 1 7
B_VID_INCM
1 1 : E 1 7
/REAR_DET
M24
0.1uF
C1738
470K
R1710
22pF
C1702
3.3K
R1724
22
R1777
M24C02-RMN6T
IC1700
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
COMP_R_IN
1 0 : I 9
0
R1751
0
OPT
R1713
470K
R1716
SIDE_INCM
1 0 : I 7
10K
R1703
22
R1748
REAR_L_IN
1 0 : I 9
22pF
OPT
C1705
74HCT14D
IC1701
5
3A
11
5A
6
3Y
12
6Y
7
GND
13
6A
2
1Y
8
4Y
14
VCC
3
2A
9
4A
1
1A
4
2Y
10
5Y
5 . 1
R1734
+5V_DEVICE
0
R1729
5 . 1
R1744
P P J 2 3 8 - 0 1
JK1702
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H
[RD2]O-SPRING_2
6H
[RD2]E-LUG
6A
[YL1]E-LUG
5A
[YL1]O-SPRING
4A
[YL1]CONTACT
5B
[WH1]O-SPRING
4C
[RD1]CONTACT
5C
[RD1]O-SPRING
6C
[RD1]E-LUG
34
R1711
RGB_R
1 1 : E 1 8
10K
R1767
470
R1706
+5V_DEVICE
5.1K
R1745
RGB_G
1 1 : E 1 8
PC_INCM
1 0 : I 7
BG1608B121F
R1782
RGB_BEAD
0
OPT
R1722
100pF
C1728
470K
R1763
OPT
SPEAK_OUT_L-
3:AG8
P E J 0 2 7 - 0 4
JK1700
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
SPEAK_OUT_L+
3:AG8
0
R1740
0
R1738
470K
R1769
OPT
0 . 1 u F
C1708
0 . 1 u F
C1740
0 . 1 u F
C1731
0 . 1 u F
C1715
0 . 1 u F
C1741
0 . 1 u F
C1716
15pF
50V
C1711
15pF
50V
C1710
39pF
OPT
OPT
C1735
39pF
OPT
OPT
C1701
47pF
50V
50V
C1744
OPT
47uF
16V
C1739
BLM18PG121SN1D
L1704
2SC3052
Q1701
E
B
C
2SC3052
Q1702
E
B
C
2SC3052
Q1700
E
B
C
10uF
16V
C1713
10uF
16V
C1700
10uF
16V
16V
C1737
30V
ZD1720
30V
ZD1703
30V
ZD1705
OPT
30V
ZD1704
OPT
30V
ZD1715
30V
ZD1701
30V
ZD1712
30V
ZD1708
30V
ZD1710
30V
ZD1711
30V
ZD1721
OPT
30V
ZD1722
OPT
30V
ZD1713
30V
ZD1700
30V
ZD1706
30V
ZD1714
30V
ZD1709
30V
ZD1717
30V
ZD1718
30V
ZD1719
30V
ZD1702
30V
ZD1716
30V
ZD1707
10K
R1739
EXT_SPK
1 0 : I 7
+5V_DEVICE
P l a c e T P n e a r T H I R D _ C V B S s i g n a l s t a r t p o i n t
Trace alongside THIRD_CVBS signal
Trace alongside THIRD_CVBS signal
CVBS TEST
SIDE AV
EXT_JACK
17
18
32/37/42LD660H
2 0 1 0 . 1 2 . 1 3
P l a c e T P / r e s i s t o r n e a r P C A U D I O I N c o n n e c t o r
Trasce between COMP_L_IN and COMP_R_IN signals
PC RGB IN
P l a c e T P / r e s i s t o r n e a r R E A R A V c o n n e c t o r
P l a c e T P / r e s i s t o r n e a r S I D E A V c o n n e c t o r
Place TP/resistor near COMPONENT connector
P l a c e T P n e a r R G B c o n n e c t o r
T r a c e a l o n g s i d e R G B _ R s i g n a l
PC AUDIO IN
P l a c e T P n e a r R G B c o n n e c t o r
Place TP near COMPONENT connector
T r a c e a l o n g s i d e R G B _ G s i g n a l
T r a c e a l o n g s i d e R G B _ B s i g n a l
P l a c e T P n e a r R G B c o n n e c t o r
Trace alongside COMP_Y signal
REAR AV / COMPONENT
Trasce between REAR_L_IN and REAR_R_IN signals
INCM TRACE
Trasce between SIDE_L_IN and SIDE_R_IN signals
Trasce between PC_L_IN and PC_R_IN signals
SPEAKER OUT
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.
GND
GND
+3.3V
IF_N_3549
1 1 : F 2 5
IF_P_3549
1 1 : F 2 3
0 . 0 1 u F
C1818
0 . 0 1 u F
C1811
0.1uF
C1806
1K
R1855
IF_AGC_3549
1 1 : F 2 7
GEM_IF_AGC
AJ19
GEM_PDIF
AH17
GEM_NDIF
AH16
GEM_IF_AGC
E24
GEM_NDIF
E23
GEM_PDIF
E23
+5V_bLAN
2N3906S-RTK
Q1806
Q1806
E
B
C
b_PTS_CTL
H20
+5V_bLAN_EXT
GND
b_PTS_CTL
AF7
bLAN_IR_IN_MODEM
5:AN12
GND
1W
200
R1884
1W
200
R1885
3.3K
R1800
JP1826
TMMB-H501P(WITH DATA TUNER)
TU1800
1
RF_OUT[NC]
2
GND_1
3
+3.3V
4
TSCL
5
TSDA
6
GND_2
7
IF_AGC
8
DIF-P
9
DIF-N
10
+5V
11
GND_3
12
J P 2 - P 1
13
J P 2 - P 4
14
J 1 - P 2
15
J 1 - P 3
16
J 1 - P 4
17
J 1 - P 5
18
PTS
19
J P 1 - P 3
20
J P 1 - P 4
21
J P 1 - P 5
22
J P 1 - P 6
23
J P 1 - P 7
24
J P 1 - P 1 0
25
J 2 - P 1
26
J 2 - P 2
27
J 2 - P 3
28
J 2 - P 4
29
J 2 - P 6
30
SHIELD
1/16W
10K
5%
R1888
3.3K
R1889
+5V_ST
+12V_C_MPI
SPI_CLOCK 5:AM23
SPI_DIN
5:AM22
SPI_DOUT
5:AM22
MPI_DIN
5 : A I 1 9
MPI_DOUT
5:AL19
10uF
10V
10V
C1820
OPT
YFDW254-06S
bLAN D/L wafer
JK1803
4
3
2
6
1
5
P E J 0 2 7 - 0 4
JK1800
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
+5V_bLAN
2.2K
OPT
OPT
R1801
47K
R1892
AO3407A
Q1804
G
D
S
47K
R1879
10K
R1877
2.2K
OPT
OPT
R1802
22K
OPT
R1829
+12V_C_MPI
bLAN_POWER_MANAGE
5:N17;AG21
100K
R1890
OPT
bLAN_POWER_MANAGE
5:N17;AG25
10K
R1882
AO3407A
Q1807
G
D
S
47K
OPT
R1830
R1891
OPT
+12V_C
+5V_DEVICE
KDR412
40V
D1800
KDR412
40V
D1807
+5V_bLAN
22
R1822
22
R1846
CDS3C30GTH
30V
D1510
MJ-623PT-6-S-SD
JK1801
1
2
3
4
5
6
7
22
R1842
22
R1841
+5V_bLAN_EXT
22
R1831
22
R1838
22
R1827
22
R1837
22
R1839
22
R1834
22
R1856
22
R1843
22
R1887
22
R1858
22
R1863
22
R1866
22
R1826
0 . 1 u F
16V
16V
C1812
0 . 1 u F
16V
16V
C1822
0 . 1 u F
16V
C1838
10uF
6.3V
6.3V
C1800
OPT
1uF
16V
C1805
1uF
10V
C1802
1uF
10V
OPT
C1801
2200pF
50V
50V
C1831
22uF
OPT
OPT
C1804
22uF
16V
16V
C1823
OPT
22uF
6.3V
6.3V
C1836
OPT
BLM18PG121SN1D
L1810
BLM18PG121SN1D
L1812
2SC3052
Q1805
E
B
C
2SC3052
Q1808
E
B
C
2SC3052
Q1803
E
B
C
BLM18PG121SN1D
L1820
100
R1804
100
R1806
0 . 1 u F
16V
16V
C1830
0 . 1 u F
16V
16V
C1833
47K
R1880
47K
R1893
30V
D1804
30V
D1805
30V
D1802
30V
D1808
30V
D1801
30V
D1809
30V
D1806
30V
D1803
10uF
10V
10V
C1807
OPT
22uF
16V
16V
C1837
OPT
27pF
50V
50V
C1813
OPT
27pF
50V
50V
C1815
22
R1803
27pF
50V
50V
C1803
OPT
SDA1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
15:U21
SCL1
9 : A L 1 5 ; 3 : F 1 9 ; 8 : S 1 6 ;
15:U22
27pF
50V
50V
C1817
22
R1871
18
b-LAN
b-LAN
C l o s e t o b L A N
b-LAN POWER
M P I _ 5 V o r 1 2 V ( P I N 3 ) S e l e c t C o n t r o l f r o m b - L A N
MPI_12V
Need to 100 oHM 2W
SMD
B - L a n M P I p i n 3 o u t p u t p o w e r ( 1 2 V o r 5 V ) c o n t r o l
BLAN CHECK
12V_JIG
18
32/37/42LD660H
2 0 1 0 . 1 2 . 1 3
5VST_JIG
BLAN CHECK
5VST_JIG
BLAN CHECK
BLAN CHECK
B - L a n d E x t e r n a l R J 1 2 j a c k
MPI_DIN
GND
MPI_DOUT
MPI_SENSE
Game_control
IR_OUT
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