4/Care And Maintenance - Radio Shack PC-2 TRS-80 Owner's Manual

4/Care and Maintenance
Your PC-2 should provide you with years of trouble-free service. However, if you ever have problems with the
Computer, check the symptom/cure table below. After that, if you still can't remedy the problem, contact your
nearest Radio Shack store or computer center.
Symptom
Cure
Can't change Operation Modes. The LOCK command may be in effect.
Type: UNLOCK
(ENTER)
Display Indicators don't come on when
Batteries may be worn out. Replace batteries or
you press
(ON) . connect the PC-2 to an external power supply.
The PC-2 "hangs-up" during program Press ALL RESET on the rear of the Computer.
execution.
A program line appears on Display
Type: t·l
c
j,i,.-,
(ENTER)
. . L.r-t
I _ 1
•
that will not go away.
A
,,~"
appears when you specify a
The correct optional device is not connected.
Defined Key such as LLiST or CSAVE.
Display Indicators do not come on Batteries may not be installed correctly or
after installing batteries or connecting connections to DC adaptor may not be proper.
DC adaptor.
Q7