[peter-997]

Hi.
I want to read out my 93c86 chip of my BoxsterS 986 facelift instrument cluster.

I have TL866A programmer.

Can sombody tell me if it is possible to read and write the chip with this programmer?

I've changed my instrument cluster to a version with the better graphic dot matrix display but want to correct the mileage.

Is it right the mileage is stored in lines 300&310 and 500&510 in a 2kb dump file?

My thougt is to copy these lines to the new cluster.

Any recommendation to use the programmer?
I found a pdf instruction. The author recommend to short the crystal on the PCB.

Am I right I dont need any power supply to the PCB? It is enough to connect the 93c86 with an IC clamp?
Thanks

   
   
   

[mbedv]

I would never read eeproms on the circuit board. Always unsolder. I don't know the programmer, but it should read your Eeprom ST 93C86 without any problems.