4
CKDC-MP576
CKDC-MP676F/MP676V
●
CD PLAYER UNIT (X32-5860-00)
Ref. No.
Application / Function
Operation / Condition
IC1
A3.3V regulator
Power supply for audio 3.3V
IC2
Ope amp for low-pass filter
IC3
4ch BTL driver
Driving spindle motor and loading/ejection operation
IC4
Mechanism
µ
-com
IC5
BU 3.3V regulator
Power supply for backup 3.3V
IC6
D3.3V regulator
Digital 3.3V power supply
IC7
Audio DAC built-in servo DSP
MP3, WMA, and AAC compatible
IC9
E2PROM
IC11
Buffer IC
Level shift
Q1
A3.3V discharge circuit
Q4
Current amp
Adjusts current to be sent to laser
Q5,6
SW 5V
Q7,8
SW 8V
D1
For current amp
COMPONENTS DESCRIPTION
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM
µ
-com: IC1 (X34-: ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth Value
Processing / Operation / Description
Table
1
PS2 2
O
Power IC control 2-2
q
Refer to the truth value table
2
PS2 1
O
Power IC control 2-1
q
Refer to the truth value table
3
PS1 1
O
Power IC control 1-1
q
Refer to the truth value table
4
PS1 2
O
Power IC control 1-2
q
Refer to the truth value table
5
PS1 3
O
Power IC control 1-3
q
Refer to the truth value table
6
REMO
I
Remote control signal input
Detect pulse width
7
NC
-
Not used
Fix to output L
8
BYTE
I
Memory extension bus width setting
Connect to VSS
9
CNVSS
-
Connect to VSS. H: Can be changed (Only for FLASH)
10
XCIN
-
32.768kHz
11
XCOUT
-
32.768kHz
12
RESET
-
L: RESET
13
XOUT
-
10.0MHz
14
VSS
-
15
XIN
-
10.0MHz
16
VCC1
-
17
NMI
I
Connect to VCC (pull up)