3
KDC-C719/C719Y
KDC-C719/G4
COMPONENTS DESCRIPTION
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CD PLAYER UNIT (X32-5810-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
DSP
Servo control
IC4
A5V regulator
Power supply for 5V audio
IC5
Driver
Driving spindle motor, loading/eject operation, elevation operation, driving pick-up ACT
IC7
µ
-com
Servo control, LX_BUS communication control
IC8
Memory IC
ELV operation parameter, Store servo coefficient
IC9
Reset IC
Q1
Current AMP
Adjust the current to be applied to the laser
Q4~8
AMUTE SW
AMUTE
Q9
SW SA5V
Q10
PON SW
PON
Q11
CH RESET SW
CH RESET
Q13
CH control SW
Q14
CH MUTE SW
CH MUTE
Q16
SW8V
Q17,18
8V SW
Q19
8V/7V SW
8V/7V switching
Q20
BU5V detection SW
BU5V detection
Q21,22
BU5V
Supply power to IC7
Q30
Anti-scratch measure
Q31
SW
Switching loading, eject, and spindle
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SYSTEM MICROCOMPUTER: 784214YGC132A/784217YGC106A (X32: IC7)
Pin No.
Pin Name
I/O
Application
1
NOR/RW
O
Disc detection result
2
/TSTB
O
TEXT data strobe signal
3
P_CON
O
Power supply control signal for video CH
4
FOK
I
Focus-ON status signal input
5
/XTALEN
O
Servo IC oscillation stop signal
6
RST
O
Servo IC reset terminal
7
SA0
O
Servo IC communication address setting
8
SSTB
O
Servo IC communication strobe
9
VDD
Positive power supply voltage connection terminal
10
X2
Oscillator connection terminal 2
11
X1
I
Oscillator connection terminal 1
12
VSS
GND electric potential connection
13
XT2
Sub clock connection terminal 2
14
XT1
I
Sub clock connection terminal 1
MICROCOMPUTER’S TERMINAL DESCRIPTION