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SL-DZ1200PP / SL-DZ1200EB / SL-DZ1200EG / SL-DZ1200EP / SL-DZ1200GN
DZ1200 LCD access circuit block diagram
Fig 7
LCD unit
Controller
Operation power supply
Contrast power supply
Backlight power supply
DZ1200 reset circuit block diagram
Fig 8
IC20
Three-terminal
regulator
MAIN
IC9
Voltage conversion
Data bus
LVX4245
IC1, 19
Control bus
Voltage conversion
+5V
+5 V power supply
Contrast
voltage control
-10~ -13V
-15 V power supply
IC8
Three terminal
+5V
regulator
+1.8V
Scratch microcomputer
RESET
IC11
+3.3 V power supply
+2.9V
monitoring IC
+1.8 V power supply
IC10
+1.6V
monitoring IC
DE
IC6
+5 V power supply
+4.5V
monitoring IC
+5V
UI microcomputer
M30622
Data bus
Control bus
PWM
IC23
FLASH
ROM
Image data
+7V
+3.3V
+1.8V
+3.3V
IC14
IC34
Media microcomputer
DSC25
DSC25
GIO
RESET
General purpose output
Q5
RESET
IC2
26
Refer to the item "Signal flow", LCD.
IC14
Scratch microcomputer
DSC25
Refer to the item "Signal flow", reset circuit.
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