Read Sharp PN-K322BH (serv.man3) Service Manual online
PN-K321/K322B HARDWARE DESCRIPTIONS
8 - 7
CN No.
Pin No.
Symbol
Function
SC4901
LVDS
OUTPUT
1 5.0V
5.0V
2 5.0V
3 5.0V
4 LBIN3+
LVDS
data(+)
5 LBIN3-
LVDS
data(-)
6 GND
GND
7 BCK+
LVDS
CLK(+)
8 BCK-
LVDS
CLK(-)
9 NC
-
10 LBIN2+
LVDS
data(+)
11 LBIN2-
LVDS
data(-)
12 LBIN1+
LVDS
data(+)
13 LBIN1-
LVDS
data(-)
14 LBIN0+
LVDS
data(+)
15 LBIN0-
LVDS
data(-)
16 NC
-
17 GND
GND
18 LAIN3+
LVDS
data(+)
19 LAIN3-
LVDS
data(-)
20 GND
GND
21 LACK+
LVDS
clock(+)
22 LACK-
LVDS
clock(-)
23 GND
GND
24 LAIN2+
LVDS
data(+)
25 LAIN2-
LVDS
data(-)
26 LAIN1+
LVDS
data(+)
27 LAIN1-
LVDS
data(-)
28 LAIN0+
LVDS
data(+)
29 LAIN0-
LVDS
data(-)
30 NC
-
31 Hsync
Control
signal
32
I2C_SCL
I2C clock signal
33
I2C_SDA
I2C data signal
34 GND
GND
35 NC
-
36 NC
-
37 NC
-
38 NC
-
39 NC
-
40 NC
-
41 NC
-
■ LED DRIVER PWB
CN No.
Pin No.
Symbol
Function
P5001
LED DRIVER
INPUT
1 VIN
19.0V
2 VIN
3 VIN
4 VIN
5 GND
GND
6 GND
7 GND
8 GND
9 ERROR
ERROR
detection
10 STB
BL
ON/OFF
11
PWM
PWM dimming control
12 NC
-
SC5002
LED Bar
OUTPUT
1 ANODE
LED
anode
2 ANODE
LED
anode
3 NC
-
4 NC
-
5
CATHODE1
LED cathode 1
6
CATHODE2
LED cathode 2
7
CATHODE3
LED cathode 3
8
CATHODE4
LED cathode 4
■ KEY/LED INDICATOR PWB
CN No.
Pin No.
Symbol
Function
P1001
KEY&LED
INDICATOR
1 D3.3V
3.3V
2 GREEN_LED
LED
Green
signal
3 RED_LED
LED
Red
signal
4
KEY SW
KEY input signal
5 GND
GND
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