Microcomputer's Terminal Description - Kenwood KDC-W4034A/AY Service Manual

KDC-W4034A/AY, KDC-W4034G/GY
KDC-W410A/AY, KDC-W410G/GY
CD PLAYER UNIT (X32-5860-02)
Ref. No. Application / Function
IC1 A3.3V regulator
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver
Mechanism µ-com
IC4
IC5 BU 3.3V regulator
IC6 D3.3V regulator
IC7 Audio DAC built-in servo DSP
IC11 Buffer IC
Q1 A3.3V discharge circuit
Q4 Current amp
Q5,6 SW 5V
Q7,8 SW 8V
D1 For current amp

MICROCOMPUTER'S TERMINAL DESCRIPTION

SYSTEM µ-com: IC1 (X34-: ELECTRIC UNIT)
Pin No. Pin Name
1 PS2 2
2 PS2 1
3 PS1 1
4 PS1 2
5 PS1 3
6 REMO
7 NC
8 BYTE
9 CNVSS
10 XCIN
11 XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC1
17 NMI
4
COMPONENTS DESCRIPTION
Power supply for audio 3.3V
Driving spindle motor and loading/ejection operation
Power supply for backup 3.3V
Digital 3.3V power supply
MP3, WMA, and AAC compatible
Level shift
Adjusts current to be sent to laser
I/O Application
O Power IC control 2-2
O Power IC control 2-1
O Power IC control 1-1
O Power IC control 1-2
O Power IC control 1-3
I Remote control signal input
- Not used
I Memory extension bus width setting
-
- 32.768kHz
- 32.768kHz
-
- 10.0MHz
-
- 10.0MHz
-
I
Operation / Condition
Truth Value
Processing / Operation / Description
Table
q
Refer to the truth value table
q
Refer to the truth value table
q
Refer to the truth value table
q
Refer to the truth value table
q
Refer to the truth value table
Detect pulse width
Fix to output L
Connect to VSS
Connect to VSS. H: Can be changed (Only for FLASH)
L: RESET
Connect to VCC (pull up)