emulatorII-list

hi i have this error code and i dont know what it means!
is there some one who have a translation tool or txt doc to understand the codes? thx

Yes, I have uploaded a 2 page document to the Files section of this group.
It's in the Technical folder, PDF file is called "EII Memory Test.pdf"

Note: the description is only valid for standard (not +) Emulators. The same kind of reasoning can be done for EII+ models too though, but you'll have to take into account the other type of memory ICs (different memory size capacity, and typically no additional memory board installed anymore)

///E-Synthesist 

--- In emulatorII-list@yahoogroups.com, "Wolfgang Krell" <wolfgangkrell@...> wrote:
>
> hi i have this error code and i dont know what it means!
> is there some one who have a translation tool or txt doc to understand the codes? thx
>

once again thx mister esynthesist!!

ok! wow thats really hard to understand! i have the error 0815 so than the bad ic must be on the digital board between ic 13-20! is that right?  
thx krellinski

Maybe it's also a bit hard to understand because the document was missing the memory IC schematics pages which are required too to identify the failing IC :-)
...so I have replaced the document by a more extended one now.

So, given your specific message (Err BnkA 0815F Data: FC  S/B: FE), and given that you have a normal unexpanded EII with 512K of RAM delivered by 4164 memory ICs spread across the digital board and the memory option (piggyback) board:

- the failing address is at location 0815F (which is hexadecimal for address 33119)
- the memory organization chart shows that all addresses in the range 08000 (32768) to 0FFFF (65535) are supported by the ICs 13 till 20 on the digital board (=under the piggyback board)
- the actual read byte on that address is FC, while it should have been FE. Converted to binary representation this gives:
   FC = 1111 1100 (bit 7 --> bit 0), which should have been
   FE = 1111 1110 (bit 7 --> bit 0)
So the error is located in bit 1
- on the schema pages of the memory ICs on the digital board, the IC with pin 14 labeled as MD0B1.D (=data bit 1 output line) is IC 19.
==> so this IC 19 on the digital board seems to cause the problem.

What you can do now is:
- check if the IC is well connected to the socket
- check if the socket is well connected to the board
- check if the conducting cupper lanes and soldering points in the area of this IC/socket are still OK (no visual corrosion ? no cuts ? ...) - you can double-check with a resistance meter
- you can swap the IC with an identical other one, e.g. on another row, and see if the error displays now another address. If not, the IC was probably OK but the damage may be on the board/socket.

///E-Synthesist

--- In emulatorII-list@yahoogroups.com, "Wolfgang Krell" <wolfgangkrell@...> wrote:
>
> 
> ok! wow thats really hard to understand! i have the error 0815 so than the bad ic must be on the digital board between ic 13-20! is that right?  
> thx krellinski
>

wow you are the chief!;) so i was right with the digital board! cool!!
i will check it tomorrow! more tomorrow!!! thx

Ok i think i found the bad ic on the digital board! I was change it with an other one and i think the ic is broken! Where can i get a new one mt 4264-15/413 ? Thx