hawkstar1973 Posted March 8, 2016 Share Posted March 8, 2016 bought a colecovision on ebay, seller states carts wont read, but unit powers on ok. noticing pins in center are pushed back a but. could that be the issue? if so, jut gently pull forward with a pair of tweezers, right? 1 Quote Link to comment Share on other sites More sharing options...
+nanochess Posted March 8, 2016 Share Posted March 8, 2016 It could be or you should be prepared to desolder and replace it. Quote Link to comment Share on other sites More sharing options...
Rey Posted March 8, 2016 Share Posted March 8, 2016 You do have a few pins at the center that are too far out. You can use a very small screw driver like tool to push them in a little bit but as nanochess mentioned, be ready for the possibility of having to replace the connector. Quote Link to comment Share on other sites More sharing options...
hawkstar1973 Posted March 8, 2016 Author Share Posted March 8, 2016 considering I cant solder. thatd be bad Quote Link to comment Share on other sites More sharing options...
ValkerieSilk Posted March 8, 2016 Share Posted March 8, 2016 I like the tweezer idea, and if a cart works for while afterwards at least you know it's that input slot which can be replaced. Quote Link to comment Share on other sites More sharing options...
SiLic0ne t0aD Posted March 9, 2016 Share Posted March 9, 2016 maybe try a J hook tool, retention the pins with it. 1 Quote Link to comment Share on other sites More sharing options...
hawkstar1973 Posted March 9, 2016 Author Share Posted March 9, 2016 Ok.. Power works cause screen goes black.. But thats all. No please insert cart. With and without cart in. So power issue or dead board. Right? Quote Link to comment Share on other sites More sharing options...
7800fan Posted March 9, 2016 Share Posted March 9, 2016 Damaged or missing data or address trace between CPU and BIOS chip, and to 2 RAM chips, missing 12v to video RAM (if it's stock), bad CPU, bad BIOS, bad RAM Quote Link to comment Share on other sites More sharing options...
SiLic0ne t0aD Posted March 9, 2016 Share Posted March 9, 2016 (edited) Start with the basics.. CPU's and BIOs chip are pretty rare to go out, RAM chips and power switch always seem to go. Check power supply voltage though, probe the female end from the brick, you should get Ground, +12, +5 and -5 volts. Edited March 9, 2016 by SiLic0ne t0aD85 Quote Link to comment Share on other sites More sharing options...
omf Posted March 10, 2016 Share Posted March 10, 2016 bought a colecovision on ebay, seller states carts wont read, but unit powers on ok. noticing pins in center are pushed back a but. could that be the issue? if so, jut gently pull forward with a pair of tweezers, right? having had some experience of blackness from my french rgb model, it was the 2 ram chips next to the cartridge port in the end, you should try to get thses replaced first, these chips are quirte expensive though even on ebay. unfortunately it wasnt the complete solution for my french system as although it works the video signal it outputs is far from pristine its none of the chips on the main board as i have replaced the lot with sockets and new so im going to try the transisters next to see if i have a dodgey one of those Quote Link to comment Share on other sites More sharing options...
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