Icom IC-471H Instruction Manual page 30

TRANSISTORS (Continued)
TRANSMIT
A Ter ud sb КАМЕ ЧЕ
GATE2 DRAIN SOURCE GATE: GATE2 DRAIN
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EMITTER
REMARKS
ACCESSORY (ACC) SOCKET CONNECTION
Various functions are available through the accessory socket
such as modulation output, receiver output, T/R change-
over, and so forth. The table below shows those terminals.
ACC SOCKET CONNECTIONS
0090009) Outside view
ШТО FUNCTION
Output from the squelch control stage.
(+8V when the squelch is ON)
13.8 Volts DC in conjunction with the power
switch operation.
Connected to Push-to-talk, T/R change-over
switch. When grounded, the set operates in
the transmit mode.
Output from the receive detector stage. Fixed
output regardless of AF output or AF gain.
Output from Transmitter MIC amplifier stage.
(Input for MIC gain control stage.)
8 Volts DC available when transmitting. (relay
can not be directly actuated. Max. 5mA).
Input for external ALC voltage.
Ground
NC (No Connection)
Output of a voltage applied to the meter.
NC
Input for external Noise Blanker control
voltage.
Input for external FM squelch control voltage.
Input for external SSB squelch control voltage.
NC
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