bszarek001 Posted August 31, 2018 Share Posted August 31, 2018 (edited) Hello everyone, Hoping someone with experience with the Coleco Telstar Arcade can help out. I purchased this and plugged it in. Started off with black and white color, tv noise, jittery paddles, and internal speaker hum. I dont have any experience with these. I adjusted the rf modulator fine tune coil and got the color and picture working fine, but still trying to figure out the tv static noise and the internal speaker hum. Is the speaker hum normal? Also, any ideas as to how to get the audio working on the tv without the static? I turn it on and its static free for about 3 seconds, then it starts. Anyone ever repair one of these things? Anywhere I can find schematics? Thanks everyone. DA43978F-429B-46E4-A244-787403FF759D.MOV Edited August 31, 2018 by bszarek001 Quote Link to comment Share on other sites More sharing options...
Swami Posted August 31, 2018 Share Posted August 31, 2018 Someone did an AV mod on one of these. That might help fix a lot of audio/visual issues if its something you want anyway. Quote Link to comment Share on other sites More sharing options...
bszarek001 Posted August 31, 2018 Author Share Posted August 31, 2018 Thanks for the info. Sounds like it will and there is plenty of room inside the box for the wiring and jacks. Happen to have a link to the thread by chance? Thanks. Quote Link to comment Share on other sites More sharing options...
Swami Posted September 1, 2018 Share Posted September 1, 2018 Thanks for the info. Sounds like it will and there is plenty of room inside the box for the wiring and jacks. Happen to have a link to the thread by chance? Thanks. I can't seem to easily find it. Probably something I stumbled across. The guy in this post said he was going to do one about a year ago, so you might contact him. It sounds like an interesting project. If I can find one at a good price I'll probably try it myself just for fun. http://atariage.com/forums/topic/251031-composite-mod-coleco-telstar/?p=3690467 Quote Link to comment Share on other sites More sharing options...
bradhig1 Posted September 2, 2018 Share Posted September 2, 2018 There is a pot inside that you adjust with a flat head screwdriver that adjusts the signal it sends to the TV. Quote Link to comment Share on other sites More sharing options...
bszarek001 Posted September 2, 2018 Author Share Posted September 2, 2018 Is it the pot on the rf modulator or a different pot? The inside is still wrapped in foil at this point. I will take it off if the pot is underneath, and will likely have to anyway to check for cold solder joints, etc. Quote Link to comment Share on other sites More sharing options...
bradhig1 Posted September 4, 2018 Share Posted September 4, 2018 It's on the rf modulator. All the pong consoles have them. Quote Link to comment Share on other sites More sharing options...
chas10e Posted September 7, 2018 Share Posted September 7, 2018 What kind of TV are you trying this on ? if a newer flat panel try and analogue channel search while console is on ( probably still have to tune the RF pot. Quote Link to comment Share on other sites More sharing options...
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