echo max 2000 to optima mk3

[295 antenna]

does anybody know how to wire up a echomax 2000 to a optima mk3?

[51]

found this, tread carefully. use your vom meter to confirm.

radio
Pin 1 Mic Input
Pin 2 +8VDC
Pin 3 Freq up/dn
Pin 4 NC
Pin 5 PTT
Pin 6 Ground (PTT)
Pin 7 Ground (MIC)
8 NC

mic
WHITE - Audio
SHIELD - Ground
RED - Transmit control
BLUE OR BROWN - Switching common
BLACK - Receive control
YELLOW - Not Used

[MDYoungblood]

I found the same thing, this is right out of the manual;
Microphone Connection Pinout;

Pin 1 Mic Input
Pin 2 +8VDC
Pin 3 Freq up/dn
Pin 4 NC
Pin 5 PTT
Pin 6 Ground (PTT)
Pin 7 Ground (MIC)
Pin 8 NC

3's

Greg

[295 antenna]

Something is lost in the translation from the echomax 2000 to the optima because it doesn't work thanks. I have same info i thought maybe something is different. I also jumpered the ground but it wont key up . ok time to practice with my meter and i wont touch the powered pin .lol

[MDYoungblood]

I'll have to find the schematic again but I think the 8v pin (#2) only has voltage when the PTT is in transmit mode so don't let no power on the jack fool you (found that out on my mic tester). If the radio is functioning okay I would suspect the mic has been "golden screwdrivered" somehow, I have had plenty where the wires have been messed with because it wouldn't wire up to a curtain radio.

3's

Greg

[51]

what function is and isnt working with the mic connected? did you connect the blue or brown wire to the shield?

[295 antenna]

Yes I did I'm taking to a radio Tec now. The Mic wires up to a cobra radio just fine so I suspect ham radio color code at least on this radio is different

[295 antenna]

I have the same schematic as everyone else. Something is different.

[MDYoungblood]

Which "Echo Master 2000" brand is it? Sadelta made one and so did Astatic (also called an EchoMax). If 51's pinout is correct then it should be;

pin 1 is white
pin 2 is N/C
pin 3 is N/C
pin 4 is N/C
pin 5 is red
pin 6 is blue or brown
pin 7 is shield
pin 8 is N/C
So the black and yellow wires aren't used, insulate them from touching anything.

Hopefully no one was inside the mic messing with the wiring there.

3's

Greg

[295 antenna]

Its the echomax

[295 antenna]

Tried that and it did not work .Thats why i was asking

[295 antenna]

Update on the Echo max Turns out pins 6 is shield and blue pin 7 is not used go figure