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XPR 6550 USB cable schematics
Posted: Tue Dec 20, 2016 12:04 pm
by greywolf
Looking for schematics or cable pinout to build a usb cable for a XPR 6550
Done a little web searching but my resources (knowledge) are limited
Re: XPR 6550 USB cable schematics
Posted: Fri Dec 23, 2016 1:05 am
by n3obl
they can be had oem for 40-60 dollars. Kinda cheap to using a homemade cable.
Re: XPR 6550 USB cable schematics
Posted: Mon Dec 26, 2016 7:09 am
by greywolf
n3obl wrote:they can be had oem for 40-60 dollars. Kinda cheap to using a homemade cable.
yes, wanted to give it a try but I understand the risks of bricking the radio. so far no luck with homemade usb cable.
think I have the wrong pinouts.
Re: XPR 6550 USB cable schematics
Posted: Tue Dec 27, 2016 9:15 am
by n1gtl
Re: XPR 6550 USB cable schematics
Posted: Tue Dec 27, 2016 7:17 pm
by greywolf
could be.....I am going straight through, figured a chip was needed somewhere
thanks!!
Re: XPR 6550 USB cable schematics
Posted: Wed Dec 28, 2016 8:09 am
by n1gtl
From page 3-4 of the detailed service manual:
USB:
Pin 1 - VCC (5V) to PIN 3 on radio connector
Pin 2 - DATA - to PIN 5 on radio connector
PIN 3 - DATA + to PIN 4 on radio connector
Pin 4 - GROUND to PIN 1 on radio connector
Looking at the connector cable (NOT the radio), pin 1 is the upper most left pin. The numbering goes down the left side in odd numbers... 1,3,5,7,9,11
The upper most right pin is pin 2 and they go down the right side 2,4,6,8,10,12
Re: XPR 6550 USB cable schematics
Posted: Fri Dec 30, 2016 7:05 am
by greywolf
n1gtl wrote:From page 3-4 of the detailed service manual:
USB:
Pin 1 - VCC (5V) to PIN 3 on radio connector
Pin 2 - DATA - to PIN 5 on radio connector
PIN 3 - DATA + to PIN 4 on radio connector
Pin 4 - GROUND to PIN 1 on radio connector
Looking at the connector cable (NOT the radio), pin 1 is the upper most left pin. The numbering goes down the left side in odd numbers... 1,3,5,7,9,11
The upper most right pin is pin 2 and they go down the right side 2,4,6,8,10,12
perfect, cable all setup as in pinout from service manual. windows fails to load usb driver. need DS2433 chip in the line I'm thinking....
will keep tinkering
Re: XPR 6550 USB cable schematics
Posted: Fri Dec 30, 2016 3:21 pm
by jackhackett
The DS2433 is a 1-Wire EEPROM. It contains a unique ID used to identify whatever device it's built into and possibly some software, so even of you get one it may not work.
Re: XPR 6550 USB cable schematics
Posted: Fri Dec 30, 2016 6:13 pm
by greywolf
jackhackett wrote:The DS2433 is a 1-Wire EEPROM. It contains a unique ID used to identify whatever device it's built into and possibly some software, so even of you get one it may not work.
Okay, thank you. possibly rule out the DS2433 chip.
will focus on the windows driver
