Sharp PN-K321 (serv.man3) Service Manual ▷ View online
PN-K321/K322B HARDWARE DESCRIPTIONS
8 - 7
CN No.
Pin No.
Symbol
Function
CN3002
Back light
unit
control
connecter
1 24VSENS
(Not-use)
2 /ERROR
Back light error Signal
3 GND
GND
4 STB
Back light ON/OFF control
signal
5 OFL1
Back light PWM signal
6 OFL2
7 VSYNC
(Not-use)
8 HSYNC
(Not-use)
9 I2C_SCK
(Not-use)
19 I2C_SDA
(Not-use)
11 GND
GND
12 N.C.
-
CN3200
power
connecter
1 GND
GND
2 DCCNT1
(Not-use)
3
MAINPOW_EN
MAIN board 12V power control
signal
4
LCDPOW_E
N
LCD 12V power control signal
5
BKLTPOW_EN
back light power control signal
6
LCD12V_SENS
LCD 12V power voltage
detection signal
detection signal
7
DCIN_SENS
AC adapter input voltage
detection signal
detection signal
8
BU5V
5V power input
9
BU5V
5V power input
10
BU3.3V
3.3V power input
11
MAIN12V
12V power input
12 GND
GND
13 GND
GND
14 GND
GND
15 GND
GND
CN2800
TouchPane
l
USB
2.0-MiniB
Connector
1 VBUS
+5V
power
2 DM
USB
signal
3 DP
USB
signal
4
N.C.
-
5 GND
GND
6 SHIELD
GND
7 SHIELD
GND
CN No.
Pin No.
Symbol
Function
CN2803
TouchPanel
Internal
Connection
Connector
1 SLDGND
GND
2 VBUS
+5V
power
3 DM
USB
signal
4 DP
USB
signal
5 GND
GND
6 RESERVED
TouchPanel
detection signal
7 PCVBUS
+5V
power
8 SCL
I2C
signal
9 SDA
I2C
signal
10
OSD
OSD notice signal
11 GND
GND
CN901
LVDS
Output
Connector1
1 GND
GND
2
LVTX_D_CH4P
LVDS data
3
LVTX_D_CH4N
LVDS data
4
LVTX_D_CH3P
LVDS data
5
LVTX_D_CH3N
LVDS data
6
LVTX_D_CLKP
LVDS clock
7
LVTX_D_CLKN
VLDS clock
8
LVTX_D_CH2P
LVDS data
9
LVTX_D_CH2N
LVDS data
10
LVTX_D_CH1P
LVDS data
11
LVTX_D_CH1N
LVDS data
12
LVTX_D_CH0P
LVDS data
13
LVTX_D_CH0N
LVDS data
14
LVTX_C_CH4P
LVDS data
15
LVTX_C_CH4N
LVDS data
16
LVTX_C_CH3P
LVDS data
17
LVTX_C_CH3N
LVDS data
18
LVTX_C_CLKP
LVDS clock
19
LVTX_C_CLKN
VLDS clock
20
LVTX_C_CH2P
LVDS data
21
LVTX_C_CH2N
LVDS data
22
LVTX_C_CH1P
LVDS data
PN-K321/K322B HARDWARE DESCRIPTIONS
8 - 8
CN No.
Pin No.
Symbol
Function
CN901
LVDS
Output
Connector
1
23
LVTX_C_CH1N
LVDS data
24
LVTX_C_CH0P
LVDS data
25
LVTX_C_CH0N
LVDS data
26
GND
GND
27
LVTX_B_CH4P
LVDS data
28
LVTX_B_CH4N
LVDS data
29
LVTX_B_CH3P
LVDS data
30
LVTX_B_CH3N
LVDS data
31
LVTX_B_CLKP
LVDS clock
32
LVTX_B_CLKN
VLDS clock
33
LVTX_B_CH2P
LVDS data
34
LVTX_B_CH2N
LVDS data
35
LVTX_B_CH1P
LVDS data
36
LVTX_B_CH1N
LVDS data
37
LVTX_B_CH0P
LVDS data
38
LVTX_B_CH0N
LVDS data
39
LVTX_A_CH4P
LVDS data
40
LVTX_A_CH4N
LVDS data
41
LVTX_A_CH3P
LVDS data
42
LVTX_A_CH3N
LVDS data
43
LVTX_A_CLKP
LVDS clock
44
LVTX_A_CLKN
VLDS clock
45
LVTX_A_CH2P
LVDS data
46
LVTX_A_CH2N
LVDS data
47
LVTX_A_CH1P
LVDS data
48
LVTX_A_CH1N
LVDS data
49
LVTX_A_CH0P
LVDS data
50
LVTX_A_CH0N
LVDS data
51
GND
GND
CN2202
LVDS
Output
Connector
2
1
GND
GND
2
LVTX_D_CH4P
LVDS data
3
LVTX_D_CH4N
LVDS data
4
LVTX_D_CH3P
LVDS data
CN No.
Pin No.
Symbol
Function
CN2202
LVDS Output
Connector2
5 LVTX_D_CH3N
LVDS
data
6 LVTX_D_CLKP
LVDS
clock
7 LVTX_D_CLKN
VLDS
clock
8 LVTX_D_CH2P
LVDS
data
9 LVTX_D_CH2N
LVDS
data
10 LVTX_D_CH1P
LVDS
data
11 LVTX_D_CH1N
LVDS
data
12 LVTX_D_CH0P
LVDS
data
13 LVTX_D_CH0N
LVDS
data
14 LVTX_C_CH4P
LVDS
data
15 LVTX_C_CH4N
LVDS
data
16 LVTX_C_CH3P
LVDS
data
17 LVTX_C_CH3N
LVDS
data
18 LVTX_C_CLKP
LVDS
clock
19 LVTX_C_CLKN
VLDS
clock
20 LVTX_C_CH2P
LVDS
data
21 LVTX_C_CH2N
LVDS
data
22 LVTX_C_CH1P
LVDS
data
23 LVTX_C_CH1N
LVDS
data
24 LVTX_C_CH0P
LVDS
data
25 LVTX_C_CH0N
LVDS
data
26 GND
GND
27 LVTX_B_CH4P
LVDS
data
28 LVTX_B_CH4N
LVDS
data
29 LVTX_B_CH3P
LVDS
data
30 LVTX_B_CH3N
LVDS
data
31 LVTX_B_CLKP
LVDS
clock
32 LVTX_B_CLKN
VLDS
clock
33 LVTX_B_CH2P
LVDS
data
34 LVTX_B_CH2N
LVDS
data
35 LVTX_B_CH1P
LVDS
data
36 LVTX_B_CH1N
LVDS
data
37 LVTX_B_CH0P
LVDS
data
PN-K321/K322B HARDWARE DESCRIPTIONS
8 - 9
CN No.
Pin No.
Symbol
Function
CN2202
LVDS Output
Connector2
38 LVTX_B_CH0N
LVDS
data
39 LVTX_A_CH4P
LVDS
data
40 LVTX_A_CH4N
LVDS
data
41 LVTX_A_CH3P
LVDS
data
42 LVTX_A_CH3N
LVDS
data
43 LVTX_A_CLKP
LVDS
clock
44 LVTX_A_CLKN
VLDS
clock
45 LVTX_A_CH2P
LVDS
data
46 LVTX_A_CH2N
LVDS
data
47 LVTX_A_CH1P
LVDS
data
48 LVTX_A_CH1N
LVDS
data
49 LVTX_A_CH0P
LVDS
data
50 LVTX_A_CH0N
LVDS
data
51 GND
GND
■ 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
PN-K321/K322B HARDWARE DESCRIPTIONS
8 - 10
PN-K321K
CN No.
Pin No.
Symbol
Function
CN201
Display
Port input
connecter
1
D3-
Main differential signal
2 GND
GND
3
D3+
Main differential signal
4
D2-
Main differential signal
5 GND
GND
6
D2+
Main differential signal
7
D1-
Main differential signal
8 GND
GND
9
D1+
Main differential signal
10
D0-
Main differential signal
11 GND
GND
12
D0+
Main differential signal
13 GND
GND
14 GND
GND
15
AX+
AUX differential signal
16 GND
GND
17
AX-
AUX differential signal
18
HPD
Hot Plug Detect
19 RTN
GND
20 PWR
+3.3V
power
CN701
headphon
e output
connecter
1 GND
GND
2 HP_L
Headphone
L
3 HP_R
Headphone
R
(6)
PLUGIN
Plug insertion detection
CN801
Audio line
input
connector
1 GND
GND
2 LINE_L
Headphone
L
3 LINE_R
Headphone
R
(6) N.C.
-
CN3101
RS232C
input
connecter
1 GND
GND
2 TxD
RS232C
TxD
3 RxD
RS232C
RxD
(6)
PLUGIN
Plug insertion detection
CN No.
Pin No.
Symbol
Function
CN2801
For Service
USB 2.0
Type-A
Connector
1 VBUS
+5V
power
2 DM
USB
signal
3 DP
USB
signal
4 GND
GND
5 SHIELD
GND
6 SHIELD
GND
CN1401
HDMI input
connecter
1
1 D2+
TMDS
data
2 GND
GND
3 D2-
TMDS
data
4 D1+
TMDS
data
5 GND
GND
6 D1-
TMDS
data
7 D0+
TMDS
data
8 GND
GND
9 D0-
TMDS
data
10 CK+
TMDS
clock
11 GND
GND
12 CK-
TMDS
clock
13 CEC
CEC
signal
14 N.C.
-
15 SCL
DDC
signal
16 SDA
DDC
signal
17 GND
DDC/CEC
GND
18 +5V
+5V
power
19
HP
Hot Plug Detect
CN302
HDMI input
Connecter
2
1 D2+
TMDS
data
2 GND
GND
3 D2-
TMDS
data
4 D1+
TMDS
data
5 GND
GND
6 D1-
TMDS
data
7 D0+
TMDS
data
8 GND
GND
9 D0-
TMDS
data
:’14/Jan
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