Tandy Color Computer 3 TRS-80 User Manual

TECHNICIAN SERIES
DIAGNOSTIC SERIES
------------ TANDY COMPUTER PRODUCTS ------------
- INTRODUCTION -
The Color Computer-3 diagnostics were written with the purpose of helping
the technician diagnose the condition of the Tandy Color Computer-3. These
diagnostics will test features specific to the Color Computer-3. Some tests
may run on the Color Computer-2 or 1, but this is not recommended.
Below is a list of Color Computer-3 diagnostics, which test various items
such as interrupts, memory, and Color Video:
MEMC03/BIN
IRQTST/BIN
FRQTST/BIN
Tests all the memory of the Color Computer-3, up to 512k.
Color Computer Normal Interrupts test.
Color Computer Fast Interrupts test.
COLORS64/BIN - Displays all 64 Colors of the Advanced Color Video Chip.
COC03VID/BIN - Displays Alpha
& Graphic modes. Also displays crosshatch.
CPUSPEED/BAS - Diagnostic for testing switching of the CPU clock speed.
PSUEDO/BAS
- Tests
PALTEST/BAS
- Tests
VP AGE/BAS
- Tests
MEMBANK/BAS - Tests
VDGMODES/BAS - Tests
"false" colors (Produced
by Artifacting circuitry).
the
the
the
the
Color
Computer-3's Color
Palette Registers.
Color Computer-3' s
Video
Paging Register.
Color
Computer-3's
MMU Memory Banking
VDG modes of the Color
Computer-3.
COLOR COMPUTER-3 DIAGNOSTICS
- 1 -
Register.

Tandy Color Computer 3 TRS-80 Specifications

General

Brand	Tandy
Model	Color Computer 3 TRS-80
Category	Desktop
Language	English