LG 24LN451B Service Manual page 26

IR/LED and Control
KEY2
KEY1
KEY_SCL
KEY_SDA
+3.3V_ST
R610 330
1/10W
1%
Red LED(Non M73):4.8mA
121118
R604,R610
+3.3V_ST
2012->1608
R604 270
1/10W
Amber LED(Non M73):5.9mA 1%
(IR Port protection against ESD)
R600 C
10K
B
121018
Q600
LED_RED
100ohm->200ohm
MMBT3904(NXP)
E
IR
R602 C
10K
B
Q601
LED_AMBER
MMBT3904(NXP)
E
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 ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+3.3V_ST
P600
12507WR-12L
R616
3.3K
JP600
1
R617
R614
3.3K
100 JP601
2
R615
100
JP602 3
JP605
4
JP604
5
JP603
6
7
JP607
8
JP606
9
JP608
10
JP609
R630
200
11
JP610
12
JP611
13
+3.3V_ST
12.07.17
Change D601~3
Module(FHD)
FHD_CONNECTOR
10031HR-30
+5V_PANEL_POWER
1
C600 2
0.1uF
16V 3
4
JP614
5
6
7
8
RXA3+
9
RXA3-
10
RXACK+
11
RXACK-
12
RXA2+
13
RXA2-
14
15
RXA1+
16
RXA1-
17
18
RXA0+
19
RXA0-
20
RXB3+
21
RXB3-
22
RXBCK+
23
RXBCK-
24
25
RXB2+
26
RXB2-
27
RXB1+
28
RXB1-
29
RXB0+
30
RXB0-
JP613
Module
P602
RXA3+
RXA3-
RXACK+
RXACK-
RXA2+
RXA2-
RXA1+
RXA1-
RXA0+
RXA0-
PIN22
0~0.7V VESA
2.7~3.3V JEDIA
PIN23
21.6"/26"/28"
LGD
GND
CMI
NC
+12V_PANEL_POWER
C605
31
0.1uF
16V
JP612
NC4_S7LRM
MODULE&CONTROL
HD_CONNECTOR
P601
10031HR-30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
R629
0 24
25
26
27
28
29
30
31
EAX65410204
2013.1.14
6 12
LGE Internal Use Only