21
22
9. BLOCK DIAGRAM
1
2
3
1
2
3
1
2
3
4
1
2
3
1
2
1
2
1
2
3
NC3FBH1
NC3FBH1
MIC/Line
Lch.
Rch.
MIC/Line
GND
GND
Ref.
Ref
MIC
Line
On
Off
Phantom SW
Balanced Amp
1
3
2
1
3
2
SOURCE
MIC ATTEN.
ANC
Input
Ref
Ref
NC3MH1
RCA2
1
2
3
VR
1
2
3
VR
Internal Speaker
HP /SPK Mode
Phone Amp.
Power Amp.
Phone Output
Line Output
Digital Audio Output
GND
GND
GND
GND
SN75176B TI
RS-422 Driver
GND
MD Servo Block
DOUT
GND
+5
MUTE
SP_MUTE
MUTE
A to D
D to A
AK4512
Display Block
µ
-COM Block
KEY Inputs
GND
GND
Power Supply
AGND DGND
GND
+3VM
+3VD
+3VR
+5VD
+48V
DIN
Digital Audio Input
COAX(RCA)
RC-5 Input
Internal MIC
DC Connector
Battery
DC Input(12V)
Balanced Amp
Digital Output ON/OFF Switch
Mute
Mute
Mute
GND
+48v
ALC/Limiter
ALC/Limiter
GND
GND
Line
L.P.Filter
Manual / ALC,Limiter
ALC / Limiter
Input
Input
(REC LEVEL)
PK01
PW01
PW02
PK02
PW07
PW06
PQ01
PW03
PS01
PF01
P801
HPS_MUTE
PWM
Converter
Converter
QG10(1/2)
QG10(2/2)
QG08(1/2)
QG03(1/2)
QG08(2/2)
QG03(2/2)
QG11(1/2)
QG11(2/2)
QG01(1/2)
QG01(2/2)
QG02(1/2)
QG02(2/2)
QG04(2/2)
QG04(1/2)
QE01(1/2)
QE01
QE11(1/2)
QE11(2/2)
QE04(1/2)
QE04(2/2)
QE10(1/2)
QE10(1/2)
QE02
QE02(2/2)
QG06(1/2)
QG06(2/2)
QE91,QE93
QE92,QE94
QG12
QD20
QD30(1/2)
QD30(1/2)
QD30(1/2)
QD30(2/2)
QK01
QK01
QK06(1/2)
QK06(2/2)
QK03(2/2)
QK03(1/2)
QK02
QK05(1/2)
QK05(2/2)
QK09(1/2)
QK09(2/2)
QK10
GND
QZ01
ENDEC
&
ATRAC
MD
CONTROL
µ
-COM
SERVO
DRIVER
HF AMP
PICK UP
FOCUS
TRACK
SPINDLE
MOTER
SLED
MOTOR
HEAD
DRIVE
QQ50
QU01
QQ90
QQ10
QQ70
QZ02
+3VS
Battery Charger
SEL
Level
(1/2)
(2/2)
(1/2)
(2/2)
XPWDA
XPWDA
+12VA
+5
GND