Texas Instruments 4000M - Manual (Page 245)

The following table lists the classes of error codes. The
numbers are in hexadecimal.
Diagnostics Error Code Classes
Code DESCription
01xx System planar board tests
07xx Keyboard tests
10xx Math coprocessor tests
17xx Video tests
20xx Asynchronous ports tests
27xx LPT ports tests
30xx Memory tests
37xx Diskette/FDisk tests
The following table lists the error codes, by class and
subclass, that could be displayed by the Diagnostics
Program.
Diagnostics Program Error Codes
Code Class Failure Description
0101 System board DMA registers
0102 System board DMA memory move
0103 System board Interrupt mask
0104 System board Hot interrupt line
0105 System board Stuck NMI
0106 System board Processor registers
0107 System board System timer
Diagnostics
Diagnostics D-7