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LG 42LK450A Service Manual page 27

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CONTROL
IR & LED
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 © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+3.5V_ST
R2405
R2404
10K
10K
1%
1%
L2401
R2401
BLM18PG121SN1D
100
KEY1
R2402
L2402
BLM18PG121SN1D
100
KEY2
+3.5V_ST
+3.5V_ST
R2425
47K
R2428
OPT
22
R2429
+3.5V_ST
IR
47K
R2430
OPT
C
Q2406
10K
R2426
B
2SC3052
47K
E
OPT
OPT
R2431
C
47K
B
Q2405
OPT
E
2SC3052
OPT
R2427
0
EYEQ/TOUCH_KEY
R2411
100
SENSOR_SCL
C2408
18pF
50V
OPT
EYEQ/TOUCH_KEY
100
D2402
SENSOR_SDA
5.6V
R2412
C2409
AMOTECH
18pF
C2401
C2402
0.1uF
0.1uF
50V
OPT
D2401
5.6V
AMOTECH
+3.5V_ST
L2403
BLM18PG121SN1D
R2413
1.5K
C2403
C2404
LED_B/LG_LOGO
0.1uF
1000pF
16V
50V
C2407
100pF
+3.3V_Normal
50V
L2404
BLM18PG121SN1D
LED_R/BUZZ
C2406
C2405
1000pF
0.1uF
50V
16V
S/T_SCL
NEW_SUB
C906
D902
18pF
CDS3C05HDMI1
50V
5.6V
OPT
S/T_SDA
NEW_SUB
C907
D903
18pF
CDS3C05HDMI1
5.6V
50V
OPT
EYEQ/TOUCH_KEY
OLD_SUB
NEW_SUB
P2401
P2402
12507WR-12L
12507WR-15L
5.6V
D2403
1
1
EYEQ/TOUCH_KEY
2
2
5.6V
D2404
3
3
JP2407
4
4
JP2408
5
5
6
6
7
7
OPT
C2410
0.1uF
16V
JP2409
8
8
JP2410
9
9
D2405
5.6V
10
10
JP2411
11
11
R2414
12
12
1.5K
OPT
13
R2416
13
10K
14
15
16
GP3_S7LR
IR/CONTROL-L
20110324
6
LGE Internal Use Only

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