Microphone Connector Information; Microphones - Icom IC-7600 Instruction Manual

■ Microphone connector information

(Front panel view)
i Main readout AF output
(varies with [AF])
q Microphone input
w +8 V DC output
e Frequency up/down
r Main readout squelch switch

■ Microphones

D HM-36
q
w
q
r
w
GND
u
(Microphone ground)
y GND (PTT ground)
t PTT
e
INSTALLATION AND CONNECTIONS
[MIC]
FUNCTION
Pin No.
+8 V DC output
w
Frequency up
e
Frequency down
Squelch open
r
Squelch closed
CAUTION: DO NOT
short pin 2 to ground as this
can damage the internal 8 V regulator. DC voltage
is applied to pin 1 for microphone operation. Use
caution when using a non-Icom microphone.
q UP AND DOWN SWITCHES [UP]/[DN]
Change the selected readout frequency or memory
channel.
• Holding down continuously changes the frequency or
memory channel.
• While holding down [XFC], the transmit readout
frequency can be controlled while in the split frequency
mode.
• The [UP] and [DN] switches can simulate a key paddle.
Preset in the keyer set mode. (p. 49)
w PTT SWITCH
Hold down to transmit, release to receive.
2
DESCRIPTION
Max. 10 mA
Ground
Ground through 470 ˘
"Low" level
"High" level
2
24