In Case Of Difficulty - Texas Instruments PHP1240 Manual

Disk memory system
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IN CASE OF DIFFICULTY

If the disk system does not appear to be working properly, check the following:
Power
1 .
Be sure all devices are plugged in. Then tum on the power to the units in
-
the proper sequence: disk drives and Peripheral Expansion System first, followed by
the console and the monitor.
Card Position
2.
peripheral system. Verify that all cards are inserted properly and then replace the
top.
Cable
3.
Check to be sure that the proper cables are being used. Check the cables
-
for loose or broken leads. Check to see that the cables are properly connected, right
side up.
4.
So ftware
Be sure all commands and statements are used
-
manual. If the disk system works properly with the Disk Manager Command Module
but not with a program, the problem is probably with the program. Especially check
the use of OPEN, INPUT, and PRINT.
5.
Diagnostic Tests
operation by running the diagnostic tests.
Peripheral Expansion System
6.
and peripheral system.
Home Computer
7.
accessories disconnected.
8. If none of the above procedures corrects the difficulty, consult "If You Have
Questions or Need Assistance" or see the "Maintenance and Service Information"
section of the
46
Tum the power off, wait two minutes, and remove the top of the
-
Check the diskette, controller, and disk drives for proper
-
-
Check to see that the Home Computer works properly with all
-
User's Re ference GUide.
Check for proper connection between the console
described in this
as

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