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Convert *.sch from old version of OrCAD

Hello all!

I have found a lot of sch. files, made in very old version of OrCAD - v1.25 (1985-1987 years). Also I have this version OrCAD with all libraries, and all work fine under DosBox emulator. I have two question:

1) Is it possible to convert from sch OrCAD v1.25 into any other modern file format?

2) I can write my own file convertor if will know the structure of .sch and .lib files in OrCAD v1.25. May be possible found somewere this information?

Parents
  • Thank you for your reply! 

    I installed OrCAD Capture 16.2 Demo Edition and tried to open Schematic files like you wrote above. And it didn't work right (fig. below). 

    After Opening old file

     

    I tried to open .lib file, and got this error:

    >============== 

    ********************************************************************************

    *

    *  Translating SDT Library to Capture.

    *

    ********************************************************************************

     

         *** Translating Library 'D:\ORCAD\LIB\RF.LIB' ***

    Decompiling 16-bit library 'D:\ORCAD\LIB\RF.LIB' to text file 'C:\USERS\TARKUS\APPDATA\LOCAL\TEMP\RF.SRC'...

    ERROR [D160004] File Error  Library header is incorrect for 'D:\ORCAD\LIB\RF.LIB'.

    Errors encountered during decompilation.

     

    ERROR [XLT0020]   Decompiling the SDT/IV library file failed.

    ERROR [XLT0016]   Translation of library 'D:\ORCAD\LIB\RF.LIB' failed.

    ERROR [XLT0016]   Translation of library 'D:\ORCAD\LIB\RF.LIB' failed.

    ERROR [XLT0070]   Translation failed.

    ERROR [XLT0071] Translation Notice  Error(s) encountered. Please check the Session Log.

     

    >============== END LOG

     

    I think, that is very early version of OrCAD, with own, incompatible file format. I tried to open my files in late MS-DOS OrCAD version 3, and got error "incompatible file format". Attach some screenshots with my OrCAD (splash screen and draft) 

     Splash screen

    Draft 

Reply
  • Thank you for your reply! 

    I installed OrCAD Capture 16.2 Demo Edition and tried to open Schematic files like you wrote above. And it didn't work right (fig. below). 

    After Opening old file

     

    I tried to open .lib file, and got this error:

    >============== 

    ********************************************************************************

    *

    *  Translating SDT Library to Capture.

    *

    ********************************************************************************

     

         *** Translating Library 'D:\ORCAD\LIB\RF.LIB' ***

    Decompiling 16-bit library 'D:\ORCAD\LIB\RF.LIB' to text file 'C:\USERS\TARKUS\APPDATA\LOCAL\TEMP\RF.SRC'...

    ERROR [D160004] File Error  Library header is incorrect for 'D:\ORCAD\LIB\RF.LIB'.

    Errors encountered during decompilation.

     

    ERROR [XLT0020]   Decompiling the SDT/IV library file failed.

    ERROR [XLT0016]   Translation of library 'D:\ORCAD\LIB\RF.LIB' failed.

    ERROR [XLT0016]   Translation of library 'D:\ORCAD\LIB\RF.LIB' failed.

    ERROR [XLT0070]   Translation failed.

    ERROR [XLT0071] Translation Notice  Error(s) encountered. Please check the Session Log.

     

    >============== END LOG

     

    I think, that is very early version of OrCAD, with own, incompatible file format. I tried to open my files in late MS-DOS OrCAD version 3, and got error "incompatible file format". Attach some screenshots with my OrCAD (splash screen and draft) 

     Splash screen

    Draft 

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