TK-830 memory problem

[Duster]

Hey all,

I'm having a problem with a TK-830 I bought on the *Bay.

First, the specs: 450-470mhz spread, full-featured panel with KCH-5 160-channel upgrade chips.

Now, the problem:

When I try to read it, it goes swimmingly until I reach about Block 20, then it gives a connection error and stops. I don't get any data transferred to the computer.

When I write to it, same thing...stops at Block 20. However, it does do a partial upload, and my first two groups load fine, after that, no Alpha tags load, and some of the groups names are gibberish. I obviously have some bad memory blocks. So my questions are:

- Is there a way to do a format of the flash memory to totally clear it out, maybe mark the bad blocks, and let me upload a new clean program to it?

- Is it possible/likely that the memory fault is in the KCH-5 channel upgrade chip, and could replacing the KCH-5 fix the problem?

Any help greatly appreciated.

David

 

[ramal121]

Sounds like the model type is wrong for what the actual radio config is. Maybe the last person who programmed it didn,t know for sure, wrote it wrong, fouled it up and wound up selling it. Anyway, not fatal.

You will not be able read it, but if the model options in the software are set correct you will be able to write to it. You did not state your starting number when programming, only that it stops at 20. Check out attached service bulletin and look at chart for eeprom sizes for different configs.

Also check IC placement and jumpers are correct for channel expansion.