Technics SL-DZ1200PP

DZ1200 LCD access circuit block diagram
Refer to the item "Signal flow", LCD.
Fig 7
MAIN
IC9
Voltage conversion
Data bus LVX4245 Data bus
Controller
IC1, 19
Control bus
Control bus
Voltage conversion
+5V
+5 V power supply
Contrast PWM
voltage control
-10~ -13V
IC23
FLASH
ROM
Image data
IC8
+5V
Three terminal
+7V
regulator
DZ1200 reset circuit block diagram
Refer to the item "Signal flow", reset circuit.
Fig 8
+1.8V +3.3V +1.8V
+3.3V
RESET GIO RESET
IC11
+3.3 V power supply
+2.9V
monitoring IC
IC20
+1.8 V power supply
IC10
General purpose output
Three-terminal
+1.6V
regulator
monitoring IC
DE Q5
IC6
+5 V power supply
+4.5V
monitoring IC
+5V
Operation power supply
Contrast power supply
Backlight power supply
LCD unit
IC14
Scratch microcomputer
DSC25
IC14 IC34
-15 V power supply
Scratch microcomputer
Media microcomputer
DSC25 DSC25
RESET
IC2
UI microcomputer
M30622