Technics SL-DZ1200PP Service Manual page 24

DZ1200 system block diagram
Fig 1
JACK
Turntable Motor
Controller AN6680
Sensor Driver AN6675
MAIN
4.5 V monitoring
Microcomputer
RESET
M30622
16MHz (UI microcomputer)
ADC IN
CP TEMPO VR
Decoder SW
LED
DZ1200 SW, VOLUME input circuit block diagram
Fig 2
MAIN CP1
IC2
UI microcomputer
A/D
M30622 input SW10~40
A/D
input CD/SD
A/D
input PCON
A/D
input REV
Serial
communication
IC14 P-CON
Scratch microcomputer
DSC25
H.PHONE DIGITAL
LINK LINE OUT OUT
MUTE
AMP AMP
DAC DIGITAL
PCM1734 TC9271
27MHz
11.29MHz DSC25
(SC microcomputer)
Serial
I2C
EEROM
External bus
Buffer FLASH SDRAM
ROM X2
LCD
SW
LED
CP3
SW x6 SW x9
CD/SD
SW
DE
CP5
TEMPO
VR
23
SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN
Refer to the item "Composition of the parts".
OUT Refer to the item "Outline of the parts".
Refer to the item "Explanation of the main signals".
BUFFER POWER
VCC
Switching power supply
VCC
27MHz
DSC25
(MD microcomputer)
Serial
2.9 V monitoring
RESET
External bus
Buffer FLASH SDRAM
ROM
(ATAPI interface)
Shutter
CD
LED
Refer to the item "Signal flow", panel.
SW x8 SW x3 SW x4
DE
SW x5 SW x4
DE
AC100V~240V
SD I/F
MN5772
SD
CP2
REV SW
DE