Radio Shack TRS-80 Model III Operation Manual page 16
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Also See for TRS-80 Model III:
- Operation and reference manual (274 pages) ,
- Owner's manual (163 pages) ,
- Service manual (135 pages)
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ODEL II OPERATION
ROM
(~he(;ksumE~rro]r.
Defec:tive ROM.
address range
PI
PIO Chip Failure.
OM
MB
RAM Fault. Defective RAM in address range
X'OOOO'-X'OFFF,
MH
RAM Fault (on 64K systems only). Defective
RAM
in address range X'8000'-X'FFFF'
81
SIO Chip Failure.
Before you ask for help ...
Try
the operation several times.
Try
using other diskettes. Recheck to see
that all power and interconnections are right.
18
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