Utax P-4030 MFP, Service Manual

Page: 453 / 488

2NM/2NX/2NY/2NZ/2P0/2P6
2-2-55
YC8
1 SCAN0 O 0/3.3 V DC (pulse) Scan signal 0
Connected to
the key-right
PWB 2 SCAN1 O 0/3.3 V DC (pulse) Scan signal 1
3 SCAN2 O 0/3.3 V DC (pulse) Scan signal 2
4 SCAN3 O 0/3.3 V DC (pulse) Scan signal 3
5 SCAN4 O 0/3.3 V DC (pulse) Scan signal 4
6 LEDRIGHT0 O 0/3.3 V DC (pulse) Operation panel LED display drive
signal 0
7 KEYRIGHT0 I 0/3.3 V DC (pulse) Operation panel key scan return signal 0
8 KEYRIGHT1 I 0/3.3 V DC (pulse) Operation panel key scan return signal 1
9 KEYRIGHT2 I 0/3.3 V DC (pulse) Operation panel key scan return signal 2
10 KEYRIGHT3 I 0/3.3 V DC (pulse) Operation panel key scan return signal 3
11 KEYRIGHT4 I 0/3.3 V DC (pulse) Operation panel key scan return signal 4
12 LEDRIGHT1 O 0/3.3 V DC (pulse) Operation panel LED display drive
signal 1
13 P LED O 0/3.3 V DC Processing LED control signal
14 M LED O 0/3.3 V DC Memory LED control signal
15 A LED O 0/3.3 V DC Attention LED control signal
16 INT_POWER
KEY_N I 0/3.3 V DC Power key: On/Off
17 SUPEND_PO
WER O 3.3V DC 3.3 V DC power input from MPWB
18 GND - - Ground
YC9
1 SPK+ O Analog Speaker sound signal (+)
Connected to
the speaker 2 SPK- O Analog Speaker sound signal (-)
YC17
1 - - - Not used
Connected to
the control
PWB 2 +5V0 PANEL I 5 V DC 5 V DC power input
3 +5V0 PANEL I 5 V DC 5 V DC power input
4 GND - - Ground
5 GND - - Ground
6 - - - Not used
YC18
1 X2 I/O Analog Touch panel control signal
Connected to
the touch
panel 2 Y2 I/O Analog Touch panel control signal
3 X1 I/O Analog Touch panel control signal
4 Y1 I/O Analog Touch panel control signal
YC21
1 LEDA_OR_5V O 0/20 V DC Backlight LED Anode
Connected to
the back light 2 LEDC_OR_G
ND O 0/5 V DC Backlight LED Cathode
Connector Pin Signal I/O Voltage Description