Kenwood DPX-MP3110 Service Manual page 8

DPX-MP3110/MP3110S
DPX-MP5110U/MP5110US
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
18 CD MRST
18 SOC SRST
19 CD MUTE
20 CD LOS SW
21 CD DISC12 SW
22 PWIC BEEP
23 NC
24 S SYS REQ
25 S SOC REQ
26 SI
27 TUN SCL
27 LED SCL
28 TUN SDA
28 LED SDA
29 LCD SYS DATA
30 LCD PAN DATA
31 LCD CL
32 LCD INH
33 S SYS DATA
34 S SOC DATA
35 S SOC CLK
36 RT CCW
37 RT CW
38 PON PANEL
39 ROMCOR DET
39 EPM
40 TAP MODE1
41 TAP MODE2
42 TAP MODE3
43 TAP SMOTOR1
44 LCD CE
8
I/O Application
O Zipang (CD mechanism μ-com) reset (MP3110/S)
O Bolero reset (MP5110U/US)
Servo & DAC mute request from Zipang
I
(CD mechanism μ-com) or Bolero
I CD loading detection
I 12cm disc detection
O Beep output
- Not used
Communication request from system μ-com to
O
Bolero
Communication request from Bolero to system
I
μ-com
I/O SI (System Indicator) control
I/O Front-end I2C clock input/output
Illumination control input/output
I/O
I2C clock input/output
I/O Front-end I2C data input/output
Illumination control input/output
I/O
I2C data input/output
O Data from system μ-com to LCD
I Data from LCD to system μ-com
O LCD clock output
O Panel operation control
O Data from system μ-com to Bolero
I Data from Bolero to system μ-com
I Clock input from Bolero
I Rotary input (Counterclockwise)
I Rotary input (Clockwise)
PANEL5V control
I/O
(OFF 11 minutes after ACC OFF)
I Writing request in ROM correction
EPM input in writing
I
Possible to rewrite when level of start-up is Lo
- Not used
- Not used
- Not used
- Not used
I/O LCD control request
Truth Value
Processing / Operation / Description
Table
H: CD playing, L: Reset
H: Normal, L: Reset
L: Mute requested, H: Normal
L: Ejection completed
L: 12cm disc
2kHz / 1kHz
Output L fi xed
L: Requested
L: Requested
L: Indicator ON, Hi-Z: Indicator OFF
100kHz
100kHz
100kHz
100kHz
Normal: MAX 1.5625MHz
Normal: MAX 1.5625MHz
Normal: MAX 1.5625MHz
H: Normal, L: Panel operation stopped
(When display goes out, key scan stops)
400kHz
400kHz
400kHz
Pulse width detection
24-pulse/360°, 1-pulse/1-click
Pulse width detection
24-pulse/360°, 1-pulse/1-click
L: Panel ON, Hi-Z: Panel OFF
H: Possible to rewrite correction data in ROM
(I2C open)
H: Possible to transport data