TRS-80 Color Computer Troubleshooting
- Poorf reception of fuzzy display
- Mixed computer and TV reception
- Computer won't turn on
- Cassette program won't load
Poorf reception of fuzzy display ¶
Output on TV is fuzzy or unclear.
TV is not on the proper channel ¶
There is a switch on the back of the computer that says channel 3 on the right and channel 4 on the left. Set the TV to the channel that the computer is set to. If it still is unclear, flip the switch on the computer and change the TV channel to the correct one.
Antenna is not connected ¶
If you are certain you are on the correct channel check the antenna and make sure they are connected securely and properly. Wiggle it around to find the position that gives best reception.
You television set needs adjustment ¶
Check the contrast, brightness and other controls on your TV. If any one of these controls is turned to one extreme or the other, there will be no visual display. Adjust them to get the best visual possible.
Mixed computer and TV reception ¶
Your screen switches from TV to your computer.
The TV is set on an incorrect channel ¶
Check the antenna to see which channel the computer should be set on. Either 3 or 4 and make sure the TV is on that channel. See "TV is not on Proper Channel."
Computer won't turn on ¶
You keep pressing the power button and nothing happens.
No power to the computer ¶
Make sure the computer is plugged into the outlet. If that doesn't work, take off the case and check the power cord connection. If the cord is frayed, see the "Power Cord Installation Guide" to replace the cord.
Your television needs adjustment ¶
Sometimes the TV settings are not correct do it might seem like the computer won't turn on. See previous "poor reception or fuzzy display" to fix this problem.
Incorrect power sequence ¶
Make sure all of the accessories (TV, tape deck, and floppy drive)are turned on before trying to turn on your computer.
Cassette program won't load ¶
You keep trying to put it in but the computer doesn't respond.
Cassette volume is too low or too high ¶
If the volume on the cassete is too high, sometimes the tape will not load or it will not give any audio feedback. Check recorder's volume control and adjust it so the volume is at a reasonable level.
Tape is broken ¶
Remove the tape and try loading a duplicate copy of the tape if you have one.