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Icom D-sub 25pin

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cmelville42

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#1
I have a F5061 with a handy 25-pin dsub connector on the back.
I know Icom sells a GPS unit that plugs into it, but I cannot find any documentation on the pinout for that connector. I think one of the pins is a dimmer and I would like to use that.

If anyone has used this connector or can point me towards more information I would greatly appreciate it.

Chris
 

cmelville42

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#3
Pinout found

Follow up - I did manage to locate a pinout for the D-SUB 25 pin connector. It's helpful but not complete information on what the pins mean. I suppose if I could read a schematic I could decipher it, but I was hoping for some meaningful documentation. After all, what good is it if we don't know how to use it? I guess ICOM sells their GPS add on that plugs into it.

Here are the mystery descriptors

PGI1
COR
EPTTO
EXMOD
AUD
DISC
PA
HORNO
VCC
DIMO
MMUT
HANGO

Is there a document that describes these?
 
Joined
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Messages
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Location
Justin, TX
#4
DB25 Pin Assignments for IC-F5061 / IC-F6061
Pin No. Symbol Description / Usage
1 NC No connection
2 TXD Serial data output (RS-232C interface built-in)
3 RXD Serial data input (RS-232C interface built-in)
4 RTS RTS signal input for internal RS-232C interface
5 CTS CTS signal input for internal RS-232C interface
6 Connected with Pin20
7 GND Ground
8 EXMOD External modulation input (depending on coffee bean setting)
Input impedance : approx. 27k ohms
Approx. 60% modulation with 300mVrms input
9 DISC Demodulated signal output * Output impedance : approx. 10k ohms
300mVrms when receiving 60% modulated signal
10 HORNO Output for horn switching signal
OFF = H (When ON, input current must be lower than 50mA)
11 VCC Voltage output (max current : 100mA) * Activated when the radio is turn ON.
12 MMUTI Input for MIC mute signal
13 NC No connection
14 GND Ground
15 PGI 1nput for foot switch *L=ON
16 NC No connection (grounded with 47pF)
17 BUSY Busy signal output L=when receiving signal
18 COR Output for digital unmute signal
19 EPTTO PTT signal output
20 Connected with Pin6
21 AUD Output for "Audible" condition signal
22 PA AF amp output Impedance : approx. 10k ohms
Output level varies depending on radio setting
RX speaker = ON : Output level follows AF VR knob condition (approx 850mV max)
PA = ON : Output level varies by pressing UP/DN keys (approx 1.8V p-p max)
23 MMUTO Output for internal MIC mute condition signal
24 DIMO Dimmer control input (LCS backlight control)
Input voltage to activate Range : +5 to +30V
25 HANGO Microphone hanger condition signal L= On-hook
 

jeatock

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#5
Hope this helps

See is this helps you de-mystify.
========================

Pin No. Symbol Description / Usage
1 NC No connection
2 TXD Serial data output (RS‐232C interface built‐in)
3 RXD Serial data input (RS‐232C interface built‐in)
4 RTS RTS signal input for internal RS‐232C interface
5 CTS CTS signal input for internal RS‐232C interface
6 Connected with Pin20
7 GND Ground
8 EXMOD External modulation input (Solder Bead "N"). NOTE: This is NOT MIC LEVEL.
Input impedance : approx. 27k ohms
Approx. 60% modulation (3kHz@ 1kHz tone) with 170mVrms input (480mvp‐p)
Note: in later SN F6061 radios, bead T will need to be cut as described in Technical Bulletin, kbase number C7A9111737
9 DISC Actual fixed level filtered audio. Bandpassed at 300 to 4kHz and de‐empahasized ohms Demodulated signal output. Output impedance : approx. 10k
300mVrms when receiving 60% modulated signal
Detected Detected Audio‐ Cut K and Solder L
10 HORNO Output for horn switching signal (5mA max)
OFF = H (When ON, input current must be lower than 50mA)
11 VCC Voltage output (max current : 100mA). Activated when the radio is turn ON.
12 MMUTI Input for MIC mute signal (5mA max)
13 NC No connection
14 GND Ground
DB25 Pin assignment for IC-F5061 / IC-F6061
15 PGI1 Programmable Pin ‐ Program in Key and Display at OPF0 (5mA max).
16 NC No connection (grounded with 47pF)
17 BUSY Busy signal‐ Output is Low (near Ground)=when receiving CARRIER signal (5mA max).
18 COR Digital Audible: Output for digital unmute signal (conventional and trunking) 5V= mute, 0V= unmute. (5mA max)
19 EPTTO PTT signal input
20 Connected with Pin6
21 AUD Analog Audible: Output for analog Auduble 5V= mute, 0V= unmute (5mA max).
22 PA AF amp output Impedance : approx. 10k ohms. Note: This is HIGH IMPEDENCE.
Output Level‐0 to 2V PP Volume Knob controlled.
Program RX speaker = ON : Output level follows AF VR knob condition (remove Q45 for "always on")
PA = ON : Output level varies by pressing UP/DN keys
23 MMUTO Output for internal MIC mute condition signal (5mA max).
24 DIMO Dimmer control input (LCS backlight control)
Input voltage to activate Range : +5 to +30V (5mA max).
25 HANGO Microphone hanger condition signal L= On‐hook (5mA max).
NOTE: All I/O lines are logic 0/5v state, with maximum current 5mA.

Coffee beans “A” Close When cut, this routes mic audio to J1 option
connector. (Note: cut this when installing UT-109 or
UT-110)
Coffee beans “B” Close When cut, this routes receive audio through J1 option
connector. (Note: cut this when installing UT-109 or
UT-110)
Coffee beans “C” Close When cut, this enables PTT control from option unit
on J1.
Coffee beans “D” Open When connected, it routes external audio (SPIN) from
D-SUB (J602) to the transmit modulating circuit
Coffee beans “E” Close When cut, this isolates external transmit audio
(SIGO) on J1 option connector from the transmit
modulation circuit
Coffee beans “F” Open When connected, it routes external transmit audio,
pin 8 on D-SUB connector (J602) to the VCO
modulating circuit.
Coffee beans “G” Close When cut, this isolates the output on buffer Q49 from
the AFO signals on the mic jack (J503) (Note: this
modification requires closing coffee beans“H” below.)
Coffee beans “H” Open When connected, this routes audio output signals on
IC21 to AFO on the mic jack. (Note: this modification
requires cutting coffee beans“G” above).
Coffee beans “I” Close When cut, this isolates demodulator signals (AFOUT)
on J1 option connecter from the audio processor (pin
19 of IC2).
Coffee beans “J” Open When connected, this routes the demodulator signal
(AFOUT) on the J1 option connector to discriminator
signals (DISC)
Coffee beans “K” Close When cut, this isolates the audio processor’s
demodulator output (pin 18 of IC2) from
discriminator signals (DISC) on the J1 option
connector.
Coffee beans “L” Open When connected, this routes detector output signals
(DET) to discriminator signals (DISC) on the J1 option
connector.
Coffee beans “M” Open When connected, this routes CTCSS/DTCS decode
signals (CDEC) to discriminator signals (DISC) on the
J1 option connector.
Coffee beans “N” Open When connected, this routes the external modulation
signals on D-SUB Pin 8 of J602 to the mic modulation
circuit. For newer F6061 radios, (not F5061) you
need to also cut Coffee Bean T as described in
Technical Update Bulletin, knowledgebase number
C7A9111737.
Coffee beans “Q” Close When cut, this isolates the CTS signal line on D-SUB
(pin 5 of J602) from the internal RS-232 interface
(pin 14 of IC91) (Note: for this modification, you
must connect coffee beans “P”)
Coffee beans “P” Open When connect this, it connects CTS signal line on DSUB
(pin 5 of J602) from RTS signal line on D-SUB
(pin 15 of J602) (Note: for this modification, you
must cut coffee beans “Q”)
Coffee beans “S” These coffee beans are the PTT inverted logic level.
Coffee bean “T” Closed This must be cut in newer F6061 radios after serial
numbers described in Technical Update Bulletin,
knowledgebase number C7A9111737
 
Joined
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Messages
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Location
Prince George BC Canada
#6
so where can u find this technical bulletin update C7A9111737

i have a brand new f6061 and applying audio to pin 8 of the db25 its not making it to the mic circuit.
I checked and coffee bean N is open and coffee bean T is closed

do i need to close N and open T?? my serial number is 3107809

thanks Warren va7rc ve7dpg@telus.net
 
Joined
Aug 12, 2014
Messages
15
Location
Prince George BC Canada
#8
thank you

thank you thanks again

its up and working now never heard them called coffee beans before kinda threw me

solder pad i would of figured out!! but the list icom sent me didn't show coffee bean T at all


Warren Va7rc
 
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