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CN No.
Pin No.
CN2801
5
Service
6
USB 2.0 Type-A
connecter
CN1401
1
HDMI input
2
connecter 1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CN302
1
HDMI input
2
Connecter 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Pin Name
Function
SHIELD
GND
SHIELD
GND
D2+
TMDS data
GND
GND
D2-
TMDS data
D1+
TMDS data
GND
GND
D1-
TMDS data
D0+
TMDS data
GND
GND
D0-
TMDS data
CK+
TMDS clock
GND
GND
CK-
TMDS clock
CEC
CEC signal
N.C.
-
SCL
DDC signal
SDA
DDC signal
GND
DDC/CEC GND
+5V
+5V power
HP
Hot Plug Detect
D2+
TMDS data
GND
GND
D2-
TMDS data
D1+
TMDS data
GND
GND
D1-
TMDS data
D0+
TMDS data
GND
GND
D0-
TMDS data
CK+
TMDS clock
GND
GND
CK-
TMDS clock
CEC
CEC signal
N.C.
-
SCL
DDC signal
SDA
DDC signal
GND
DDC/CEC GND
+5V
+5V power
HP
Hot Plug Detect
PN-K321/K322B
HARDWARE DESCRIPTIONS
CN No.
Pin No.
CN302
17
HDMI input
18
Connecter 2
19
CN702
1
Visceral
2
speaker
3
connecter
4
CN2900
1
KEY connecter
2
3
4
5
6
7
8
9
CN2901
1
LED indicator
2
connecter
3
4
5
6
7
8
9
10
CN3002
1
back light unit
2
Control
3
connecter
4
5
6
7
8
9
19
11
12
Pin Name
Function
GND
DDC/CEC GND
+5V
+5V power
HP
Hot Plug Detect
SPK_RM
speaker signal（R)
SPK_RP
speaker signal（R)
SPK_LM
speaker signal（L)
SPK_LP
speaker signal（L)
GND
GND
KEY1
KEY input signal
KEY2
KEY input signal
KEY3
KEY input signal
KEY4
KEY input signal
KEY5
KEY input signal
KEY6
KEY input signal
KEY7
KEY input signal
GND
GND
GND
GND
LED_R
LED(Red) lighting control
signal
LED_G
LED(Green) lighting control
signal
OPT_3.3V
(Not-use)
N.C.
-
N.C.
-
OPTIN
(Not-use)
IR
(Not-use)
IR_3.3V
+3.3V power
GND
GND
24VSENS
(Not-use)
/ERROR
Back light error Signal
GND
GND
STB
Back light ON/OFF control
signal
OFL1
Back light PWM signal
OFL2
VSYNC
(Not-use)
HSYNC
(Not-use)
I2C_SCK
(Not-use)
I2C_SDA
(Not-use)
GND
GND
N.C.
-
8 - 6
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