HT 750 Programming cable

mobiletechcom · Post by **mobiletechcom** » Thu Apr 04, 2002 2:59 pm

hello, Does any one have the pinout info to build a programming cable for an Ht 750? i looked on the cable page on batlabs , but it shows one that hooks into a service monitor also. is there a simple one to build(rib to radio only) thanks, Tom

Do-Anything · Post by **Do-Anything** » Fri Apr 05, 2002 11:35 am

Hi, I am also looking for the pinout for the ribless cable. I hope someone can help me out. Thanks for read this message. Darrell

Do-Anything · Post by **Do-Anything** » Fri Apr 05, 2002 11:58 am

DOH! I think I found it on the board. But if anyone has any other ideas? Thanks Darrell

mobiletechcom · Post by **mobiletechcom** » Fri Apr 05, 2002 2:40 pm

i wasnt talking about the ribless cable, just one without the service monitor connector on it. do i still need the resistor?

Nand · Post by **Nand** » Fri Apr 05, 2002 3:38 pm

Post by **wavetar** » Fri Apr 05, 2002 3:45 pm

On 2002-04-05 17:40, mobiletechcom wrote:
i wasnt talking about the ribless cable, just one without the service monitor connector on it. do i still need the resistor?

Just omit the un-needed wires. You end up with just 3 wires, one straight through jumper & one resistor.

Todd

Do-Anything · Post by **Do-Anything** » Fri Apr 05, 2002 6:42 pm

Ok,,,,, I will be asking for some help here.
I have connected the three wires needed. You talk of a jumper and resistor. Please let me know where they go and what the value of the resistor should be. Thanks fellows......I am not have fun this way.Darrell

Post by **wavetar** » Fri Apr 05, 2002 6:55 pm

The 3 wires are as follows:

DB-25-----------Radio Acc

1----------------> 7
15---------------> 8
25---------------> 12

Actually, I was wrong, there are two jumpers. On the radio accessory connector end, jumper pins 8 & 9. On the DB-25 end, jumper pins 4 & 11.

The 10K resistor goes between pins 1 & 15 on the DB-25 end.

I am only going by the drawing on BatLabs here:

http://www.batlabs.com/images/1550svc.gif

I haven't made this cable myself.

Todd

<font size=-1>[ This Message was edited by: wavetar on 2002-04-05 21:56 ]</font>

Do-Anything · Post by **Do-Anything** » Fri Apr 05, 2002 7:33 pm

I have follow the instructions per the drawing. My rib does'nt like it. The green data led comes on as soon as the cable is plugged in. I have check and recheck the wiring.

Post by **wavetar** » Sat Apr 06, 2002 3:35 am

Anyone else made a cable from that diagram? I don't like the fact it shows the TX & RX data (pins 8 & 9 on the radio accessory connector) are shorted together. Also don't like the fact it shows pin "8" as "0", and labels "bus-" as "dug-"? Oh, and don't overlook the "Doot Ctrl" lines!

Todd

Nand · Post by **Nand** » Sat Apr 06, 2002 11:16 am

Do-Anything · Post by **Do-Anything** » Sat Apr 06, 2002 2:51 pm

RADIO FOR SALE!!
Just kidding - I just don't know about this stuff sometimes. I have done just about everything you can do to make this cable work. I has to be the rib. I have looked over the print for the rib and all looks good. I have programed four radios today with it, but it still will not work with the ht750 and cable I made for it. When the cable is plugged in the data led comes on and stays on. The battery in the rib is new, the radio is on with a fresh battery. Errrrrr....If I remove the resistor the led goes out. I have replaced the resister two times. Just can't figure it out. Thanks fellas for the help.

Nand · Post by **Nand** » Sat Apr 06, 2002 3:11 pm

Do-Anything · Post by **Do-Anything** » Sat Apr 06, 2002 3:25 pm

Well, I know the motorola rib only has the power led. My good rib is at work. I don't want to drive the 30 miles in there and than get stuck there, you know how that is?. So,I am using a clone. It's the first time it has every done this for me. I know what your thinking, if you don't use the motorola rib than your just asking for trouble. I will just wait until monday and take it to work and do it there. When I started doing the programming at work we used this rib. We picked up the motorola rib and I took this one home. So you will here no more of this until it doesn't work on monday. Thanks Again for the help - Darrell

Nand · Post by **Nand** » Sat Apr 06, 2002 3:50 pm

041steve · Post by **041steve** » Sun Apr 07, 2002 3:51 pm

does anyone know how to make the rib-less programming cable i have tryed the pinout on batlabs but that doesen't work

thanks
steve

Nand · Post by **Nand** » Sun Apr 07, 2002 5:49 pm

mobiletechcom · Post by **mobiletechcom** » Sun Apr 07, 2002 6:06 pm

back to the original question.... so i just eliminate the wires going to the service monitor and keep the resistor value the same?

Nand · Post by **Nand** » Sun Apr 07, 2002 6:19 pm

Do-Anything · Post by **Do-Anything** » Tue Apr 09, 2002 4:04 am

Well, I programmed the radio at work and I now have a fully programmed radio. The cloned rib didn't work, the motorola rib did.
Thanks for all the help. Why does it take some people so long to believe that cloned and off brand equipment does not perform? One day I may change my ways. Thanks very much guys for all the help you have given me on this problem. Darrell