D Sm-50 (OptOn); Microphone Connector Information - Icom IC-7600 Instruction Manual

2
INSTALLATION AND CONNECTIONS

■ Microphone connector information

(Front panel vew)
q Microphone input
w +8 V DC output
e Frequency up/down
■ Microphones
D HM-36
q
q
w
w

D SM-50 (Opton)

q
r
q
w
r
w
23
i Main readout AF output
(varies with [AF])
u
GND
(Microphone ground)
y GND (PTT ground)
t PTT
r Main readout squelch switch
e
e
[MIC]
FUNCTION
Pin No.
w
+8 V DC output
Frequency up
e
Frequency down
Squelch open
r
Squelch closed
CAUTION: DO NOT
can damage the nternal 8 V regulator. DC voltage
s appled to pn 1 for mcrophone operaton. Use
cauton when usng a non-Icom mcrophone.
q UP/DOWN SWITCHES [UP]/[DN]
Change the selected readout frequency or memory
channel.
• Pressng a swtch contnuously changes the frequency
or memory channel number contnuously.
• Whle pushng [XFC], the transmt readout frequency
can be controlled whle n splt frequency operaton.
• The [UP]/[DN] swtch can smulate a key paddle. Preset
n the keyer set mode. (p. 45)
w PTT SWITCH
Push and hold to transmt; release to receve.
e PTT LOCK SWITCH (avalable for SM-50 only)
Push to toggle between transmt and receve.
r LOW CUT SWITCH (avalable for SM-50 only)
Push to cut out the low frequency components of
nput voce sgnals.
DESCRIPTION
Max. 10 mA
Ground
Ground through 470 ˘
"Low" level
"Hgh" level
short pn 2 to ground as ths