The Radio Information Board

Hello all. I'm wondering if there is a schematic for the RPI for a 5300 mobile. I understand that there is a rs-485 interface Any information would be helpful.

Will

PM me and email address and I'll send you the schematic PDF.
BTW, there are now 2 RPI boxes (a -000 and a -001). the -000 is the old one and the -001 is a modified one that supports dual core processors which seem to have a funky effect on the serial port. I don't have a schematic for the new one (yet). But I'll send you what I do have.

I.S.

Intrinsically Safe wrote:PM me and email address and I'll send you the schematic PDF.
BTW, there are now 2 RPI boxes (a -000 and a -001). the -000 is the old one and the -001 is a modified one that supports dual core processors which seem to have a funky effect on the serial port. I don't have a schematic for the new one (yet). But I'll send you what I do have.

I.S.

Hello I.S.

Could I have one too?

KMB

I will get it to you KMB I am just at a location where I cannot do email very well. You'll have to wait until this weekend if that is ok.
I think I still have your email addy.

I.S.

Intrinsically Safe wrote:I will get it to you KMB I am just at a location where I cannot do email very well. You'll have to wait until this weekend if that is ok.
I think I still have your email addy.

I.S.

Thank you I.S.!
my e-mail have PM to you.

KMB

KMB wrote:

Intrinsically Safe wrote:I will get it to you KMB I am just at a location where I cannot do email very well. You'll have to wait until this weekend if that is ok.
I think I still have your email addy.

I.S.

Thank you I.S.!
my e-mail have PM to you.

KMB

Hi I.S.

File got!
Thank you!

KMB

So, I'm having trouble. I'm trying to read a 5300, 242-5326. Radio was a rear mount, tray only . I bought a few remote heads off ebay. I'm trying to get it up and running as a front mount before I spend any real $$ on remote cables. One of the heads was missing the pigtail, so I moved it to the front of the radio, mnade up the ribbon cable and set the jumpers for front mount with digital volume control. the radio seems to operate just fine in this config. I can tx and rx using a desk mic from some other EFJ radios I have.

Using the 15 pin D connector for the remote head, I found the RS-485 lines, the busy line and ground that show continuity to the front mic jack where programming would NORMALLY occur. I've built the interface using the schematic for the RPI.

I haven't gotten the radio to ack yet. Is there some kind of vulcan death grip I need to do on the buttons like some of the kenwood products, or am I fooling myself and I need to just buy the Hirose connector and program through the mic jack. Do I need to set up as a remote mount to be able to program? does the radio know to ignore serial data on the DB15 if the head is a local mount?

Needless to say I'll just order the service manual tomorrow. any help in the meantime would be great tho...

Many thanks, Will

Hey will, I got your PM on this but I have been out of comm's this week.

I only know of one person who has done what you are trying to do and that was several years ago on the original version (REV 4) 5300s.
Over the years we became pretty close and he passed away about 2 years ago to cancer

There is no 'Vulcan' death grip but there is a GI Joe Kung Fu Grip!! Just kidding, while in programming mode there is nothing specail that needs to be done. Only when updating the firmware.

As fro programming thorugh the logic and not the control head, you are the first I have heard try it. I can get you the service manual for that if you want to save a few bucks and put that towards a remote cable.

I.S.