Microcomputer’s Terminal Description - Kenwood DPX-MP3110 Service Manual

Ref. No. Application / Function
IC6 D3.3V REG.
IC11 BU1.5V REG.
Q1 APC (Auto Power Control)
Q13 Inverter
D2 Laser Diode Protection
D3,4 Static Electricity Countermeasure
MICROCOMPUTER'S TERMINAL DESCRIPTION
● SYSTEM μ-COM: IC500 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O
1 WIRED REMO I
2 CD MOTOR O
3 CD LOEJ I/O CD motor control
4 DRIVEMUTE O
5 PON CD I/O
6 BYTE -
7 CNVSS -
8 XCIN -
9 XCOUT -
10 RESET -
11 XOUT -
12 VSS -
13 XIN -
14 VCC1 -
15 NMI -
16 CD LOE LIM SW I
17 CD MSTOP O
17 SOC SSTOP O
COMPONENTS DESCRIPTION
Power supply for digital 3.3V.
Power supply for back-up 1.5V.
Drives LD (Laser Diode).
Inverts ZDET signal.
Prevents reverse bias which is applied to laser. Laser destruction prevention.
Prevents malfunction by static electricity.
Application
Remote control signal input
CD motor control
CD motor driver mute output (When Bolero is
connected, this pin in not used)
CD mechanism inner power supply (When Bo-
lero is connected, this pin in not used)
Not used
CD chucking detection
CD mechanism μ-com stop (MP3110/S)
Bolero stop (MP5110U/US)
DPX-MP3110/MP3110S
DPX-MP5110U/MP5110US
Operation / Condition / Compatibility
Truth Value
Processing / Operation / Description
Table
Pulse width detection
q Refer to the truth value table
Refer to the truth value table
q
H: ON, Hi-Z: OFF
32768Hz
32768Hz
12MHz
12MHz
H: Loading completed, L: No disc
H: Normal, L: Mechanism stopped
H: Normal, L: SOC (System On Chip) stopped
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