Motorola Cleartone CM5000 Basic Service Manual page 39

OVERVIEW
LCD
LED
Key
Matrix
Rotary
knob
CM5000 Mobile Repeater/Gateway - Basic Service Manual
Figure 10. Key/display Sub-Unit block Diagram
LCD
D/A
I/F
LCD
controller
LED PWM
driver
A/D
Temp.
LED
driver
Panel CPU
Mic
Amp
Con.
SD
RAM
FLASH
ROM
Serial
To Control circuit
line
driver
Mic Audio
To Control circuit
Rec. Audio
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