LG 42SL90QD-CA (CHASSIS:LC91L) 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.
PCMCIA
CI_DATA[0]
CI_DATA[5]
CI_DATA[5]
CI_ADDR[5]
PCM_D[0]
CI_ADDR[9]
PCM_D[6]
FE_TS_DATA[0-7]
FE_TS_DATA[0]
CI_DATA[0-7]
CI_ADDR[11]
CI_DATA[4]
CI_DATA[6]
CI_ADDR[13]
CI_DATA[0]
CI_DATA[0-7]
FE_TS_DATA[5]
CI_ADDR[0]
CI_DATA[2]
PCM_D[2]
CI_ADDR[10]
PCM_D[0-7]
CI_ADDR[2]
CI_ADDR[14]
FE_TS_DATA[3]
CI_DATA[6]
CI_ADDR[1]
CI_ADDR[3]
CI_ADDR[7]
FE_TS_DATA[2]
FE_TS_DATA[6]
CI_DATA[3]
PCM_D[5]
CI_DATA[1]
CI_DATA[2]
PCM_D[4]
FE_TS_DATA[7]
FE_TS_DATA[1]
CI_DATA[7]
CI_ADDR[12]
FE_TS_DATA[4]
CI_ADDR[6]
PCM_D[7]
PCM_D[1]
CI_DATA[3]
CI_DATA[4]
PCM_D[3]
CI_ADDR[4]
CI_ADDR[8]
CI_DATA[1]
CI_DATA[7]
CI_ADDR[8]
CI_ADDR[7]
CI_MDI[7]
R1615
47
/PCM_IORD
CI_DATA[0-7]
FE_TS_VAL_ERR
CI_MDI[7]
IC1601
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
CI_MDI[4]
/CI_CD2
011:E12
AR1609
33
R1637
10K
PCM_A[8]
CI_MDI[2]
CI_MDI[1]
CI_TS_DATA[4]
CI_MDI[2]
+5V_CI_ON
C1609
0.1uF
16V
0.1uF
16V
R1624
10K
R1622
22K
CI_MDI[4]
PCM_A[4]
REG
CI_TS_DATA[5]
CI_MCLKI
CI_MISTRT
AR1610
33
CI_TS_SYN
/PCM_CE
REG
+3.3V_CI
CI_WE
/CI_CD2
+3.3V_CI
R1630
0
OPT
R1638
10K
CI_ADDR[1]
R1617
47
PCM_5V_CTL
/CI_CD1
011:D4
CI_DET
/PCM_CD
001:AA10
CI_ADDR[0-14]
CI_TS_DATA[7]
GND
/PCM_WE
R1618
10K
10K
PCM_A[11]
+5V_GENERAL
FE_TS_DATA[0-7]
AR1601
33
CI_MDI[3]
C
1
6
0
5
0
.
1
u
F
1
6
V
GND
FE_TS_CLK
CI_MDI[0]
C1602
0.1uF
16V
0.1uF
16V
R1631
10K
CI_MDI[3]
R1632
47
CI_MDI[6]
R1636
100
AR1606
33
CI_MCLKI
R1619
10K
CI_DET
011:AB9
+5V_GENERAL
GND
R1628
47
CI_IORD
CI_MDI[6]
CI_DATA[0-7]
R1621
10K
CI_MDI[1]
/PCM_IRQA
PCM_A[0]
CI_TS_DATA[3]
CI_ADDR[5]
AR1602
33
CI_MDI[5]
CI_MDI[5]
R1627
100
CI_ADDR[0]
PCM_D[0-7]
AR1605
33
GND
AR1600
33
+3.3V_CI
CI_IORD
PCM_A[6]
CI_TS_DATA[2]
CI_ADDR[14]
PCM_RST
/PCM_OE
PCM_A[5]
CI_TS_DATA[0]
C1610
0.1uF
16V
0.1uF
16V
/PCM_WAIT
PCM_A[7]
CI_ADDR[13]
AR1608
33
R1623
2.2K
CI_ADDR[4]
CI_TS_DATA[6]
R1625
10K
CI_IOWR
CI_WE
PCM_A[1]
CI_TS_VAL
C1600
0.1uF
16V
16V
CI_ADDR[12]
PCM_A[10]
+5V_CI_ON
CI_TS_DATA[1]
C1604
10uF
10V
10uF
10V
CI_OE
C1608
0.1uF
PCM_A[13]
/CI_CD1
GND
PCM_A[14]
+5V_GENERAL
AR1603
33
+5V_ST
R1616
33K
C1607
0.1uF
16V
0.1uF
16V
CI_ADDR[10]
GND
GND
CI_MIVAL_ERR
Q1601
RSR025P03
S
D
G
CI_MISTRT
011:D14
R1633
33K
CI_MDI[0]
CI_ADDR[2]
CI_MIVAL_ERR
/PCM_IOWR
C1606
10uF
10V
10uF
10V
/PCM_REG
CI_ADDR[6]
CI_ADDR[3]
R1634
0
OPT
CI_ADDR[9]
R1629
0
OPT
R1626
100
C1603
0.1uF
AR1607
33
Q1600
2SC3052
2SC3052
E
B
C
CI_TS_CLK
CI_IOWR
PCM_A[2]
R1620
10K
PCM_A[3]
CI_ADDR[11]
FE_TS_SYN
PCM_A[9]
CI_OE
PCM_A[12]
IC1600
74LVC1G32GW
3
GND
2
A
4
Y
1
B
5
VCC
AR1604
33
C1601
0.1uF
16V
0.1uF
16V
R1635
47
P1600
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
16 17
PCMCIA
2009.7.2.
EAX61333001
CI POWER ENABLE CONTROL
DVB-CI TS INPUT
DVB-CI HOST I/F
DVB-CI SLOT
DVB-CI DETECT
Option : DVB-CI
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.
LGS8G75
LGS_TP_DATA[3]
LGS_TP_DATA[7]
LGS_TP_DATA[6]
LGS_TP_SYNC
LGS_TP_CLK
LGS_TP_DATA[1]
LGS_TP_DATA[0]
FE_TS_DATA[3]
FE_TS_DATA[7]
LGS_TP_DATA[0]
LGS_TP_DATA[1]
LGS_TP_DATA[5]
LGS_TP_DATA[2]
LGS_TP_DATA[3]
FE_TS_DATA[5]
LGS_TP_DATA[2]
LGS_TP_VALID
LGS_TP_DATA[4]
FE_TS_DATA[1]
FE_TS_DATA[4]
FE_TS_DATA[6]
LGS_TP_DATA[6]
FE_TS_DATA[2]
LGS_TP_DATA[5]
FE_TS_DATA[0]
LGS_TP_DATA[4]
LGS_TP_DATA[7]
R1706
10K
10K
L1807
MLB-201209-0120P-N2
C1701
47uF
16V
16V
FE_DEMOD_SDA
001:D21;010:E4
FE_TS_SYN
+2.5V_LGSVDD
IC908
2SC3875S(ALY)
E
B
C
L1810
MLB-201209-0120P-N2
SEL_LGS8G75
001:F8
C2859
OPT
C2851
1uF
2N7002(F)
IC905
G
D
S
LD1503
SAM2333
A2[GN]
C
A1[RD]
SCL_LGS8G75
009:W32
L1806
MLB-201209-0120P-N2
+5V_TUNER
LGS_TP_DATA[0-7]
FE_TS_VAL_ERR
LGS_TP_CLK
012:A1
R1708
0
AR902
0
DVB-CI
LGS_TP_SYNC
012:A1
C2843
0.1uF
0.1uF
FE_TS_SERIAL_DATA
C2852
0.1uF
LGS_TP_VALID
+2.5V_LGSVDD
LGS_TP_CLK
+2.5V_LGSVDD
C2853
0.1uF
X1501
30.4MHz
TU_SCL_3.3V
+1.2V_DTMB
TU_DIF1
R1700
0
RESET_LGS8G75
TU_DIF2
C1704
0.1uF
C1708
0.1uF
L1700
MLB-201209-0120P-N2
L1811
MLB-201209-0120P-N2
C2844
0.1uF
0.1uF
C1706
0.1uF
TU_SCL_5V
009:AQ8
+3.3V_DEMOD
C1705
47uF
16V
+3.3V_LGSVDD
+3.3V_DEMOD
+3.3V_DEMOD
R
1
7
1
2
4
.
7
K
IC1701
SSM6N15FU
SSM6N15FU
0TFTH80001A
3
DRAIN2
2
GATE1
1
SOURCE1
4
SOURCE2
5
GATE2
6
DRAIN1
SCL_LGS8G75
C1703
0.1uF
C1707
0.1uF
+1.2V_DTMB
+3.3V_LGSVDD
+3.3V_LGSVDD
FE_TS_DATA[0-7]
LD1502
SAM2333
A2[GN]
C
A1[RD]
C2848
0.1uF
C1700
0.1uF
FE_DEMOD_SCL
001:D21;010:E4
AGC_LGS8G75
010:F6
R1701
0
AR901
0
DVB-CI
SDA_LGS8G75
R1703
5.6K
+3.3V_DEMOD
IC1700
SC1565IST-2.5TR
2
GND
3
VO
1
VIN
LGS_TP_SYNC
AR900
0
1/16W
0
1/16W
L1809
MLB-201209-0120P-N2
SDA_LGS8G75
009:W32
LGS_TP_DATA[0-7]
012:A2
+2.5V_LGSVDD
R
1
7
0
4
4
.
7
K
+2.5V_LGSVDD
TU_SDA_5V
009:AQ8
R1709
0
OPT
TU_SCL_3.3V
009:W33
C2854
0.1uF
0.1uF
LGS_TP_VALID
012:A1
R1707
47K
TU_SDA_3.3V
TU_SDA_3.3V
009:W33
C2847
1uF
R1702
5.6K
L1808
MLB-201209-0120P-N2
C1709
0.1uF
FE_TS_CLK
+2.5V_LGSVDD
R1710
0
OPT
2N7002(F)
IC904
G
D
S
C2849
1000pF
C2850
1000pF
+2.5V_LGSVDD
R1715
10K
+1.2V_DTMB
+2.5V_LGSVDD
C1710
0.1uF
C1712
0.1uF
C1714
0.1uF
C1716
0.1uF
C1718
0.1uF
C1720
0.1uF
C1722
0.1uF
C1711
0.1uF
C1713
0.1uF
C1715
0.1uF
C1717
0.1uF
C1719
0.1uF
C1721
0.1uF
C1723
0.1uF
C1724
0.1uF
C1725
0.1uF
R2836
330
330
+3.3V_LGSVDD
R1719
4.7K
R1720
0
0
NON_CI
IC1702
74LVC16244ADGG
26
4A3
27
4A2
28
GND_5
29
4A1
30
4A0
31
VCC_3
32
3A3
33
3A2
34
GND_6
35
3A1
36
3A0
37
2A3
38
2A2
39
GND_7
40
2A1
41
2A0
42
VCC_4
43
1A3
44
1A2
45
GND_8
46
1A1
47
1A0
48
2OE
17
3Y4
3
1Y1
6
1Y3
16
3Y2
15
GND_3
14
3Y1
13
3Y0
12
2Y3
11
2Y2
10
GND_2
9
2Y1
8
2Y0
7
VCC_1
4
GND_1
5
1Y2
25
3OE
24
4OE
23
4Y3
2
1Y0
22
4Y2
21
GND_4
1
1OE
20
4Y1
19
4Y0
18
VCC_2
R2860
0
R2862
0
R2861
0
R2835
330
330
R2829
180
180
R2830
4.7K
4.7K
R2831
1M
1M
R2832
0
OPT
D1700
5.6V
AMOTECH
AR1700
22
DVB-CI
AR1702
22
AR1701
22
DVB-CI
IC1804
LGS-8G75-A1
VDD1.2_1
A4
VDD1.2_2
A10
VDD1.2_3
D6
VDD1.2_4
E1
VDD1.2_5
F9
VDD1.2_6
G7
VDD1.2_7
J10
VDD2.5_1
A5
VDD2.5_2
A8
VDD2.5_3
C2
VDD2.5_4
D8
VDD2.5_5
D12
VDD2.5_6
G4
VDD2.5_7
G9
VDD2.5_8
H12
VDD2.5_9
K11
RES_38
G12
RES_42
H11
RES_49
M12
RES_47
L12
RES_45
J12
RES_46
L11
RES_48
M7
AGC
E10
RFAGC
M10
SHUTDOWN
C5
CLK_OBS
G6
SDAT
B12
SCLT
C12
IP
K8
IM
L7
QP
L9
QM
M8
DGND_1
B4
DGND_2
B7
DGND_3
B9
DGND_4
C11
DGND_5
D3
DGND_6
E5
DGND_7
E8
DGND_8
F2
DGND_9
F10
DGND_10
G11
DGND_11
H5
DGND_12
H8
DGND_13
K12
DGND_14
L6
DGND_15
M9
XTALOUT
L1
XTALIN
K1
RES_1
A1
RES_2
A7
RES_6
B1
RES_7
B2
RES_9
B6
RES_13
C7
RES_16
D1
RES_22
E2
RES_23
E3
RES_24
E4
RES_25
E6
RES_26
E7
RES_32
F5
RES_33
F6
RES_34
F7
RES_35
F8
RES_37
G10
RES_39
H6
RES_40
H9
RES_41
H10
RES_44
J8
RES_43
J6
RES_29
F1
RES_17
D4
RES_12
C3
RES_30
F3
RES_8
B3
RESETN
F12
BLKERRN
B10
LOCK
C9
SDA
D10
SCL
E11
RES_21
D11
RES_28
E12
RES_3
A9
RES_20
D9
RES_36
F11
RES_10
B8
RES_14
C8
RES_4
A11
RES_5
A12
RES_11
B11
RES_15
C10
CEA0
J11
CEA1
K9
CEA2
G5
BP2
H4
RES_27
E9
RES_31
F4
RES_19
D7
RES_18
D5
IF_CLK
M11
GPIO0
K10
GPIO1
C6
VDD2.5_10
L10
PLL_AVDD1.2
K5
PLL_AGND
L4
PLL_VDD1.2
L3
PLL_GND
M2
ADC_VDD1.2
J7
AGND
K7
VBG
J9
IBIAS
L8
MPEG_D0
J3
MPEG_D1
H2
MPEG_D2
G1
MPEG_D3
H3
MPEG_D4
D2
MPEG_D5
C1
MPEG_D6
A2
MPEG_D7
A3
MPEG_CLK
C4
MPEG_VALID
B5
MPEG_SYNC
A6
I0
M6
I1
H7
I2
G8
I3
M5
I4
M4
I5
L5
I6
K6
I7
M3
I8
K4
I9
M1
Q0
L2
Q1
K3
Q2
K2
Q3
J1
Q4
J2
Q5
H1
Q6
G2
Q7
J4
Q8
G3
Q9
J5
C2846
18pF
18pF
C2845
18pF
18pF
C2858
220pF
C2857
220pF
R1711
3.3K
R1705
3.3K
17 17
EAX61333001
2009.7.2.
To External ADC
Close to IC