42LH250C (CHASSIS:LD91Z) - LG TV Service Manual (repair manual). Page 24

Read LG 42LH250C (CHASSIS:LD91Z) Service Manual 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.
330pF
50V
C1103
SCART1_DET
0 0 1 : A J 2 0
SC1_G
0 0 2 : E 1 8
SC1_CVBS_IN
0 0 2 : D 2 3 ; 0 0 2 : E 1 8
SC1_R_IN
002:R16
SC1_ID
0 0 2 : E 1 7
SC1_B
0 0 2 : E 1 8
SC1_L_IN
002:R16
220pF
50V
C1108
OPT
SC1_FB
0 0 2 : E 1 8
100uF
16V
C1107
330pF
50V
C1102
SC1_R
0 0 2 : E 1 8
+3.3V
11K
R1123
30V
OPT
D1101
30V
OPT
D1102
30V
OPT
D1103
30V
OPT
D1104
30V
OPT
D1106
30V
OPT
D1109
30V
OPT
D1111
5.6V
OPT
D1100
5.6V
OPT
D1105
5.6V
OPT
D1107
5.6V
OPT
D1108
62K
R1118
120-ohm
L1100
120-ohm
L1101
2SC3052
Q1120
E
B
C
BLM18PG121SN1D
L1104
+12V/+15V
0 . 1 u F
50V
C1144
TV/DTV_VOUT
0 0 2 : E 2 6
47uF
16V
C1142
0 . 1 u F
50V
C1145
ISA1530AC1
Q1119
E
B
C
TV/DTV_L_OUT
0 0 9 : C 2 1 ; 0 0 9 : S 2 1
TV/DTV_R_OUT
0 0 9 : C 2 5 ; 0 0 9 : S 2 2
0
R1182
0
R1117
0
R1105
0 . 1 u F
16V
C1113
10K
R1108
10K
R1110
12K
R1111
12K
R1112
15K
R1175
1K
R1126
22
R1114
4.7K
R1124
470
R1140
470K
R1103
470K
R1100
47K
R1174
47pF
50V
C1106
75
R1109
75
R1106
75
R1104
75
R1102
75
R1101
OPT
C1101
OPT
C1100
JK1100
1
R_OUT
2
R_IN
3
L_OUT
4
GND
5
GND
6
LIN
7
B
8
SC_ID
9
.
10
.
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
23
23
22
22
75
R1107
390
R1113
120
R1138
BLM18PG121SN1D
L1102
BLM18PG121SN1D
L1103
1000pF
50V
C1110
1000pF
50V
C1111
0
R1135
0
R1160
10uF
35V
C1143
5.6V
OPT
D1110
4700pF
C1116
4700pF
C1115
33K
R900
KID65003AF
IC902
3
I 3
2
I 2
4
I 4
1
I 1
6
I 6
5
I 5
7
I 7
8
GND
9
COMMON
10
O7
11
O6
12
O5
13
O4
14
O3
15
O2
16
O1
100
R906
+5V_ST
2SA1504S
Q901
E
B
C
10
R910
+5V_ST
+5V_ST
10
R913
220
R907
2SA1504S
Q903
E
B
C
10
R911
+5V_ST
P I C 1 6 F 8 1 9 - I / S O
IC901
3
RA4/AN4/T0CKI
2
RA3/AN3/VREF+
4
RA5/MCLR/VPP
1
RA2/AN2/VREF-
6
RB0/INT
5
VSS
7
RB1/SDI/SDA
8
RB2/SDO/CCP1
9
RB3/CCP1/PGM
10
RB4/SCK/SCL
11
RB5/SS
12
RB6/T1OSO/T1CKI/PGC
13
RB7/T1OSI/PGD
14
VDD
15
RA6/OSC2/CLKO
16
RA7/OSC1/CLKI
17
RA0/AN0
18
RA1/AN1
10
R916
12505WR-05A00
P900
1
2
3
4
5
6
10
R915
4.7K
R901
12507WS-12L
P901
1
2
3
4
5
6
7
8
9
10
11
12
13
CB3216PA501E
L903
47K
R903
10
R914
100pF
50V
C901
CLOCK_SCL
100
R905
0
R904
4.7K
R908
2SA1504S
Q902
E
B
C
10
R912
2SA1504S
Q900
E
B
C
2SA1504S
Q904
E
B
C
47uF
16V
C902
0 . 0 1 u F
50V
C900
CLOCK_SDA
+5V_ST
KIA7042AF
IC900
2
G
3
O
1
I
+5V_ST
0
R920
10pF
50V
C907
10pF
50V
C906
OPT
+3.3V_ST
1uF
50V
C908
14.31818MHZ
X901
6204B47985E
4
+VCC
1
TRI
2
GND
3
OUTPUT
14.318MHz
X901-*1
6204B41431C
4
+VCC
1
TRI
2
GND
3
OUTPUT
33K
R1146
SCART1_Rout
2.2K
R1191
TV/DTV_R_OUT
74LX1G14CTR
IC904
3
GND
2
1A
4
1Y
1
NC
5
VCC
CLOCK_SDA
10K
R1148
0 . 1 u F
16V
C909
2SC3052
Q1126
22
R917
2SC3052
Q1127
CLOCK_SCL
2pF
50V
C903
+3.3V
0 . 1 u F
16V
C905
+3.3V_ST
TV/DTV_R_OUT
0 . 1 u F
50V
C1126
470K
OPT
R1193
SB_MUTE
33pF
C1127
2K
R1151
+5V_ST
4.7K
R919
22
R918
RT1P141C-T112
Q1130
1
2
3
0 . 1 u F
C1131
+12V/+15V
33pF
C1128
10K
R1141
ENKMC2838-T112
D1120
A1
C
A2
1K
R909
+5V_ST
TV/DTV_L_OUT
2pF
50V
C904
TV/DTV_L_OUT
M41T81
IC903
3
VBAT
2
XO
4
VSS
1
XI
5
SDA
6
SCL
7
IRQ/FT/OUT/SQW
8
VCC
5.6K
R1143
2K
R1149
EAW39040101
32.768KHz
X900
BUZZ_PWM
SCART1_MUTE
33K
R1145
470K
OPT
R1192
10K
R1147
10K
R1120
10uF
16V
C1133
2.2K
R1190
10uF
16V
C1134
LM324D
IC1103
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
PKLCS1212E4001-R1
BU900
1
2
5.6K
R1144
SCART1_Lout
BATTERY
BA900
1
2
9         1 1
SCART
LED CLOCK
SCART
COMMERCIAL_LITE LH250
EAX61353501
      2 0 0 9 . 0 6 . 0 9
⁄
REAL TIME CLOCK
* *   P o l a r i t y   N o t a t i o n   i n   P C B
⁄
BUZZER
S c a r t   A u d i o   M u t e
Audio Out Amp
SCART
Display
Click on the first or last page to see other 42LH250C (CHASSIS:LD91Z) service manuals if exist.
Random: