Read LG 42LH45YD (CHASSIS:LC91B) 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.
+3.3V
SDA_SUB/AMP
IR
+5V_ST
SCL_SUB/AMP
KEY1
KEY2
+3.3V_ST
R1318
100
R1317
100
C1314 0.1uF
16V
C1310
0.1uF
16V
C1307
0.1uF
C1315 1000pF 50V
C1311
1000pF
50V
C1309
100pF
50V
ZD1303
5.6V
AMOTECH
ZD1302
5.6V
AMOTECH
ZD1304
5.6V
AMOTECH
ZD1300
5.6V
CDS3C05HDMI1
ZD1301
5.6V
CDS3C05HDMI1
R1320
4.7K
R1319
4.7K
L1301
BLM18PG121SN1D
L1303
BLM18PG121SN1D
L1313
BLM18PG121SN1D
P1304
12507WS-12L
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
WARM_ST
9
IR
10
GND
11
3.3V
12
PWR_ON
13
IR_OUT
+5V_ST
+5V_ST
Q1301
2SC3052
IR-OUT
E
B
C
Q1300
2SC3052
IR-OUT
E
B
C
R1322
100
R1321
100
C1305
0.1uF
L1314
BLM18PG121SN1D
R1305
100
R1302
10K
IR-OUT
R1301
10K
IR-OUT
R1303
10K
IR-OUT
R1300
22
IR-OUT
R1304
47K
IR-OUT
R1325
4.7K
MDS61887701
M2
GASKET_M2
MDS61887701
M3
GASKET_M3
MDS61887701
M4
GASKET_M4
MDS61887701
M1
GASKET_M1
L1302
BLM18PG121SN1D
ZD1305
5.6V
AMOTECH
C1313
0.1uF
LED_ON
R1323
0
R1324
10K
13 13
IR & LED
CONTROL
IR & LED
close to wafer
Zener Diode is
2009. 1.15.
EAX60737402
EMI GASKET
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