Waris series ribles cable help.

chrisryan99uk · Post by **chrisryan99uk** » Fri Dec 27, 2002 3:48 am

Hi
Does anyone have any info or a schematic for the Ribless cable
for the Waris series of radio?
I believe the part number is RKN4075A.
The drawing on the Batlabs page is incorrect, I took a look inside a genuine RKN4075A cable 'D' shell and there is a small pcb with 2/3 i.c's and some other smt devices.
I assume that it is basically a level shifter (max232) type of affair and a voltage multiplier to generate the +12v flash supply.
Any help appreciated, hopefully someone has the info.

Chris.

chrisryan99uk · Post by **chrisryan99uk** » Sat Dec 28, 2002 6:02 am

Further to my last post, If I am going to figure it out myself, would anyone be able to post the relevant page from the service manual that shows the schematic of the Warris radio's cpu/memory and also the wiring to the radio's side connector.
This will make life easier finding how the 12v flash erase voltage get's to the flash rom.

Chris.

Andreas · Post by **Andreas** » Thu Jan 02, 2003 2:45 am

There´s no 12V flash voltage for the Waris series.
Only the JEDI Series radios,with open architecture, need a 12V voltage for flashing the firmware.

Andreas

Juan Skinner · Post by **Juan Skinner** » Wed Jan 29, 2003 11:25 am

My local UK Motorola service agent told me that they would not sell me a programming cable for the numerous GP-340s I had on my bench. Back at the workshop, I set about making my own as per Batlabs from a faulty headset adaptor.
It did not work in RIBless form so I commoned the data busses and hooked it up to my usual MAX3232/7407 voltage level converter. All works fine, job done. Smug grins all round having saved myself £40 and circumvented big Ms restrictive trading practices.
Juan.