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LG 37LH50YD Service Manual page 19

Chassis: lb91b
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+3.3V_ST
R5003
4.7K
R5002
100
KEY1
R5001
100
KEY2
IR
+5V_ST
+5V_ST
R502
10K
IR_OUT
22
R501
R504
IR_OUT
IR_OUT
10K
IR_OUT
C
R503
Q501
B
2SC3052
E
10K
IR_OUT
IR_OUT
C
R505
B
47K
Q502
E
IR_OUT
2SC3052
IR_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.
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and servcie purposes
IR & LED
R5004
4.7K
L5001
BLM18PG121SN1D
D5001
L5002
5.6V
BLM18PG121SN1D
AMOTECH
D5002
C5001
C5002
5.6V
0.1uF
0.1uF
AMOTECH
+5V_ST
L5005
BLM18PG121SN1D
C5003
C5006
1000pF
0.1uF
50V
16V
R506
100
+3.3V
C5004
100pF
D5003
50V
5.6V
AMOTECH
L5003
BLM18PG121SN1D
C5005
C5007
1000pF
0.1uF
50V
16V
Zener Diode is
close to wafer
P5001
12507WS-12L
$0.09801
R5005
0
SCL_SUB/AMP
D5004
CDS3C05HDMI1
5.6V
SCL
1
R5006
0
SDA
2
SDA_SUB/AMP
D5005
CDS3C05HDMI1
GND
3
5.6V
KEY1
4
KEY2
5
5V_ST
6
GND
7
R508
WARM_ST
8
10K
IR
9
GND
10
3.3V
R5010
0
11
PWR_ON
R5008
0
12
LED_ON
R507
C500
13
0.1uF
10K
16V
GND
M1
MDS61887701
SMD GASKET-JACK
M2
SMD GASKET-MEMORY
MDS61887701
M3
MDS61887701
SMD GASKET-LVDS
EAX60148002-0(LH50)
2009.01.19
5
11
IR
LGE Internal Use Only

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37lh50yd-aa