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Pioneer KEH-8080 code eeprom

Hi guys, for those who can help me find the file for reprogramming the infamous pdg1011. I have the cassette deck out of the box where it was stored nearly 30 years ago. Obviously, after replacing all the lamps, belts, wires, flat cables, and a lot of soldering, I finally came to an end when it asked me for the code, which I don't remember. Now, I got the c341a programmer but I didn't succeed even in reading the memory and I'm afraid it has been erased. Someone can provide me the bin file to inject into the eeprom or suggest me some kind of reader to get the code out? Thanks in advance

Comments
Elek
Elek picture

Hi Jack!

The eeprom is not empty, only the C341a cannot read/write this eeprom!
The "PDG1011" is equal to Sony "CXK-1011" eeprom.
Elnec's programmers can read e.g. SEEPROG etc. etc ... and UPA USB also handles it!
If you succeed in reading it with a programmer, the code is:

It is located at 3Dh-3Eh, namely as follows:

Code first number: 3Dh second byte -1
Code second number: 3Dh first byte -1
Code third number: 3Eh second byte -1
Code fourth number: 3Eh first byte -1
Example: 00000030  00 00 00 00 00 00 00 00 00 00 00 00 00 32 54 00 = code 1234
3Fh is the counter 03= blocked, 00= code request
If you write 11 11 in the addresses 3Dh and 3Eh, it won't ask for a code anymore!

Have a nice day!
wbr

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Thejack
Thejack picture

Hi Elek, thanks a lot for your much appreciated halo. You saved my day. I’ll go for the programmer you mentioned and will let you know if I succeed. Thankssssss

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SzBálint
SzBálint picture
****

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