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CoCo 2, will not play cassettes!

tandy Radio Shack classic computer trs-80 cassette problem coco

6 replies to this topic

#1 Polybius OFFLINE  



  • 341 posts
  • Making Nightmares since 1981
  • Location:Robertsville,MO

Posted Thu Jan 21, 2016 6:44 PM

I am having a problem with my TRS-80 Color Computer 2, it will not load cassettes. I just bought a new cable for it on Ebay, as i did not have one. The seller  said it was made himself,  it was hooked correctly into the cassette recorder, but when i try to load a cassette, it just sits there and does nothing, the motors do not run at all on the player with it hooked up, unless i hit play on the recorder, and it still will not load! any ideas?

#2 JamesD OFFLINE  



  • 8,444 posts
  • Location:Flyover State

Posted Thu Jan 21, 2016 9:57 PM

The computer can only turn the player on once you've pressed the PLAY or PLAY & RECORD buttons.
If you type CLOAD and hear a click from the computer, that is the relay to control the tape player.

The volume also has to be set right.  I think the Radio Shack cassette deck requires it set to 8 but it's been a long time since I've used one.
Non-Radio Shack decks will require different settings and some may not work.



    River Patroller

  • 2,094 posts

Posted Thu Jan 21, 2016 10:40 PM

If changing the volume doesn't work, verify the homemade cable can load a .wav CoCo game from your PC or iPod.


Your tape deck might also be a bit fast/slow, one way to find out is if you can save and load new programs but can't load existing CoCo tapes.

#4 Gamemoose OFFLINE  



  • 699 posts

Posted Fri Jan 22, 2016 2:06 PM

First, lets test to see if your CoCo "hears" anything.

At the prompt, type in MOTORON:AUDIOON and press Enter. I hope my CoCo commands are right. This should allow both the motor on the recorder to be active (if the Motor wire is connected and without using CLOAD) and we'll be able to hear sounds from the tape over the TV speaker.

Then play your tape and listen for any computer tones. You may have to adjust the volume on the recorder to hear anything (6-8 is about right). If you don't hear a thing, put in any music tape. We want to see if sound is going through to the CoCo.

If you have sound, then try loading your program again. Adjust the volume on the recorder accordingly.

Hope that helps.

#5 static1701 OFFLINE  


    Star Raider

  • 78 posts
  • Location:Waterford, MI USA

Posted Sun Apr 24, 2016 9:11 AM

I have this problem with a COCO3. If I turn the audio on I can hear the .wav file faintly. This is the case even with it turned way up. The service manual says check R14 and C25. R14 is fine and C25 is ceramic and they don't usually go bad. This leads to IC8. Any one have any ideas? I bought it off ebay and I am thinking of sending it back because I need the cassette port to load drivewire. 

#6 static1701 OFFLINE  


    Star Raider

  • 78 posts
  • Location:Waterford, MI USA

Posted Sun Apr 24, 2016 7:34 PM

I found the solution to the problem, my cassette port works! I replaced all the capacitors. Less than $10 and about an hour to do it.

#7 tlindner OFFLINE  


    Combat Commando

  • 6 posts
  • Location:SF, Bay Area

Posted Sat May 7, 2016 9:13 AM

Bad/Old caps strike again! Argh!

Also tagged with one or more of these keywords: tandy, Radio Shack, classic computer, trs-80, cassette, problem, coco

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