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Notes For All Schematics and Circuit Boards
IN 5V RF REG
INT KP COL
INT KP ROW
INT MIC
INT SWB
INT SWB+
IRQ
K9V1
KEYPAD ID
LCD A0
LCD CS
LCD DATA
LCD E RD
LCD RW WR
LED CNTRL
LED GREEN
LED RED
LED YELLOW
LOCK
LSIO
LVZIF CS
MIC
MISO
MODIN
MOSBIAS 2
MOSBIAS 3
NOISE BLNKR
ON OFF CONTROL
ON OFF SENSE (Control Head) On Off Sense Line to Control Head *P
ON OFF SENSE (Controller)
OPT CS
OPT PTT
PA PWR SET
PA SWB
PASUPVLTG
PCIC MOSBIAS 1
PRESC
PTT IRDEC
PTT IRDECODER
R W
Supply Voltage for 5V Regulator in RF Section
Internal Keypad Matrix Column Signal
Internal Keypad Matrix Row Signal
Internal (from Control Head) Microphone Input
Internal Switched 13.2V Supply Voltage
Internal Switched 13.2V Supply Voltage
Interrupt Request from Control Head
9.1V in Transmit Mode
Keypad Identification Line
LCD Control / Display Data Select
LCD Chip Select
LCD Data Lines
LCD Enable Read
LCD Read Write Control
LED Control Lines
Green LED Control
Red LED Control
Yellow LED Control
Lock Detect Signal from Synthesizer
Low Speed Clock In / Data Out
LVZIF Chip Select (not used)
Microphone Input
Serial Peripheral Interface Receive Line
Modulation Signal into the Synthesizer
PA Bias Voltage for second Stage
PA Bias Voltage for third Stage
Noise Blanker Enable (Low Band only)
Service Request Line from Control Head / Manual Switching On
of the Radio's Voltage Regulators
Service Request Line from Control Head
Option Board Chip Select
PTT from Option Board
ASFIC Output Voltage to set the Transmitter Power
Switches Supply Voltage for PA Current Control Circuitry
13.2 V Supply Voltage of the Transmitter PA
PA Bias Voltage for first Stage
Prescaler Signal from VCO to Synthesizer
Microphone PTT Input
Microphone PTT Input
Read Write Signal for RAM / Flash
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