Texas Instruments Professional Computer Error 21: Illegal disk address

Texas Instruments Professional Computer · taken from the manufacturer’s manual, pages cited

Error code21

An illegal disk address was provided to the Texas Instruments Professional Computer. The manual lists no action for this code.

Model: Texas Instruments Professional Computer
Display shows: Illegal disk address (21)
Type: Error code
Source: Manual p. 101

Meaning
Common causes
Still not solved
Source

What 21 means

Illegal disk address p. 101

Common causes

Illegal disk address. p. 101

If 21 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Texas Instruments service.

Open the manual at page 101 All Professional Computer error codes Manual details & download

This page summarises what the manufacturer’s manual says about 21; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Texas Instruments. Found a mistake? Report an error.