Tait TP9100 - Page 73

TP9100 Service Manual Circuit Descriptions 73
© Tait Electronics Limited May 2005
Figure 3.9 Block diagram of the front-panel interface board circuitry
Front-
Panel
Interface
Connector
PL2
FPI CDC MANDOWN
FPI CDC TEMP
DIG FPI SPI CLK
DIG FPI SPI DO
DIG FPI LE
DIG FPI CD
FPI COL1-4DIG
DIG FPI ROW1-4
DIG MUX ADC
FPI BL+
DIG DSP SYS RST
Accele-
rometer
+3V3
16-Button
Keypad
LCD
Connector
PL1
Back
Lighting
AGND
Temp.
Sensor
Front-Panel
Interface Board