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Service Manual
Model No.: LE48M7000A
4-2. Mainboard
4-2-1. Function Description
Process signal which incept from exterior equipment then translate into signal that panel can
display.
4-2-2. Connector definition
IR & Key Interface
Pin number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
CN4
Signal name
GND
K7
K6
K5
K4
K3
K2
K1
K0
GND
IR
GRE
RED
5V
LED Backlight control
interface CN604
Pin number
Signal name
GND
1
GND
2
ADJ
3
BLON
4
12V
5
12V
6
Speaker connector CN30
Pin number
Signal name
ROUT+
1
2
ROUT-
3
LOUT-
4
LOUT+
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