Marantz MR2020 - External Equipment Connection

CD BOARD NAMI 8
8-1
8-1
BLOCK DIAGRAM
TABLE OF CONTENTS
Block diagram .................................................................. 8-1
Component layout ............................................................ 8-2
Circuit diagram ................................................................. 8-3
Parts list ........................................................................... 8-4
SAA7372
CD7
BCLK WCLK SDA
HFIN
LDON
DISC
PHOTO DIODE
ARRAY
TURNTABLE
MOTOR
TRACK
SERVO
FOCUS
SERVO
SLIDE
SERVO
FE
FLEX PCB
A/D-CONVERTER
SERIAL
INTERFACE
µP
INTERFACE
CONTROL PART
EBU
INTERFACE
RAM
ADDRESS.
SUBCODE
PROCESS.
MOTOR
CONTROL
OUTPUT
STAGES
ERROR
CORRECT.
FRONT END TIMING
DIGITAL PLL
SRAM
EFM
DEMOD.
Vref
KILL
PRE-PROC.
FUNCTION
CONTROL
VERSATILE
INTERFACE
AUDIO
PROCESS.
PEAK
DET.
RA (PWM signal)
RA FO SL
FO
(PWM signal)
SL (PWM signal)
TRACK FOCUS
DISC Motor- DISC Motor+ SLIDE Motor+ SLIDE Motor- FOCUS Servo+ FOCUS Servo- TRACK Servo+ TRACK Servo-
SLIDE DISC MOTOR
MOTO1 (from CD7)
MOTO2 (from CD7)
L.P.F. L.P.F. L.P.F.
MOTO2MOTO 1
8.4672MHz
DOBM
RESET
SDA WCLK
left channel
MSB
LSB
MSB
LSB
right channel
BCLK
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE OF CD7CD7 ∅ DAC
CD - Drive
CD94V5B1
TDA7073AT MOTOR DRIVER TDA7073AT MOTOR DRIVER
Q251 Q252
+5V
SERIAL DATA
INTERFACE
D/A D/A
DAC
TDA1311AT
DATA RESET SILD SICL RAB
+5V+4.5V
SUPPLY
FOR TDA1311
Left out
Right out
Q401
Q425
J204
+8V
+5V
SUPPLY & AUDIO
INTERFACE
CONTROL INTERFACE
A
C
DB
Q201
Q221
J203
NC NC NC
F
TDA1300T
HF-AMPLIFIER
L.P.F.
H.P.F.
+
LASER
SUPPLY &
PROTECT.
E A C F D B
E A C F D B
LDONVDD
MI
Laser diode Monitor diode
L.P.F. L.P.F. L.P.F. L.P.F. L.P.F. L.P.F.
LO
RN5RL3AA
TDA1308
Q451
L.P.F. L.P.F.
+4.5V
+5V
+8V
KILL