Icom IC-7600 Instruction Manual - Page 30

■ Microphone connector information, ■ Microphones, ◇ HM-36, ◇ SM-50 (Option), DHM-36 DSM-50

Page 30 highlights

2 INSTALLATION AND CONNECTIONS ■ Microphone connector information (Front panel view) q Microphone input w +8 V DC output i Main readout AF output (varies with [AF]) u GND (Microphone ground) y GND (PTT ground) e Frequency up/down t PTT [MIC] Pin No. w e r FUNCTION +8 V DC output Frequency up Frequency down Squelch open Squelch closed DESCRIPTION Max. 10 mA Ground Ground through 470 ˘ "Low" level "High" level r Main readout squelch switch 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. ■ Microphones D HM-36 q q w w D SM-50 (Option) q UP/DOWN SWITCHES [UP]/[DN] Change the selected readout frequency or memory channel. • Pressing a switch continuously changes the frequency or memory channel number continuously. • While pushing [XFC], the transmit readout frequency can be controlled while in split frequency operation. • The [UP]/[DN] switch can simulate a key paddle. Preset in the keyer set mode. (p. 45) w PTT SWITCH Push and hold to transmit; release to receive. e PTT LOCK SWITCH (available for SM-50 only) Push to toggle between transmit and receive. r LOW CUT SWITCH (available for SM-50 only) Push to cut out the low frequency components of input voice signals. q rq w r e w e 23

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Microphone connector information
(Front panel v±ew)
y
GND (PTT ground)
t
PTT
r
Main readout squelch switch
q
Microphone input
w
+8 V DC output
e
Frequency up/down
i
Main readout AF output
(varies with [AF])
GND
(Microphone ground)
u
[MIC]
Pin No.
FUNCTION
DESCRIPTION
w
+8 V DC output
Max. 10 mA
e
Frequency up
Ground
Frequency down
Ground through 470
˘
r
Squelch open
“Low” level
Squelch closed
“H±gh” level
CAUTION: DO NOT
short p±n 2 to ground as th±s
can damage the ±nternal 8 V regulator. DC voltage
±s appl±ed to p±n 1 for m±crophone operat±on. Use
caut±on when us±ng a non-Icom m±crophone.
Microphones
D
HM-36
q
w
D
SM-50
(Opt±on)
q
w
r
e
q
UP/DOWN SWITCHES [UP]/[DN]
Change the selected readout frequency or memory
channel.
Press±ng a sw±tch cont±nuously changes the frequency
or memory channel number cont±nuously.
Wh±le push±ng [XFC], the transm±t readout frequency
can be controlled wh±le ±n spl±t frequency operat±on.
The [UP]/[DN] sw±tch can s±mulate a key paddle. Preset
±n the keyer set mode. (p. 45)
w
PTT SWITCH
Push and hold to transm±t; release to rece±ve.
e
PTT LOCK SWITCH
(ava±lable for SM-50 only)
Push to toggle between transm±t and rece±ve.
r
LOW CUT SWITCH
(ava±lable for SM-50 only)
Push to cut out the low frequency components of
±nput vo±ce s±gnals.
23
2
INSTALLATION AND CONNECTIONS