Charlie_ Posted July 3, 2012 Share Posted July 3, 2012 One of my 4 port switch boxes is not working. The 5200 turns on and you can see a change in the "snow" on the TV but that is about it. I used to have many but Ive given several away and now I am down to two. Including this broken one. Anyone who knows how to fix these things willing to fix it for me? I will of course pay what is required. Thanks! Quote Link to comment Share on other sites More sharing options...
yell0w_lantern Posted July 4, 2012 Share Posted July 4, 2012 I just built a switch box for a 4 port i got off of Craigslist. Open it up and see if there are any broken connections. I know the homemade version only has only has the 3 ports/jacks and 2 components (a choke and a capacitor) so the real deal is probably pretty simple too. Quote Link to comment Share on other sites More sharing options...
low_budget Posted July 5, 2012 Share Posted July 5, 2012 There was a recent post about the 4 port switchbox: http://www.atariage.com/forums/topic/198464-5200-switch-box-pcb-question/ The only time I think repairing a switchbox would be worth it if it's a system in collector condition with box, etc. Like another poster said, are they really worth fixing if a power mod is probably easier? Also, I can imagine the picture would be better without 12v traveling through the same conductor as RF. Quote Link to comment Share on other sites More sharing options...
Charlie_ Posted July 5, 2012 Author Share Posted July 5, 2012 I have 5200's with AV and power mods, I'd like to get the box fixed because you need them to test and use stock systems. It won't be for everyday use. I use a 2 port for everyday use anyway. So... still looking for someone who can fix it. Quote Link to comment Share on other sites More sharing options...
zylon Posted July 5, 2012 Share Posted July 5, 2012 Try replacing the small IC on the switch box board. Quote Link to comment Share on other sites More sharing options...
Charlie_ Posted July 5, 2012 Author Share Posted July 5, 2012 Try replacing the small IC on the switch box board. Is that LM393N ? Is this a common part an electronics store? (Not RadioShack) Quote Link to comment Share on other sites More sharing options...
zylon Posted July 6, 2012 Share Posted July 6, 2012 That's the one. Should be easy to find from Jameco, ebay, and other sources. The part is less than a dollar. I believe AA member Phuzzed still fixes these. Quote Link to comment Share on other sites More sharing options...
Charlie_ Posted July 6, 2012 Author Share Posted July 6, 2012 That's the one. Should be easy to find from Jameco, ebay, and other sources. The part is less than a dollar. I believe AA member Phuzzed still fixes these. I stopped at the electronics store on the way home from work today. They had the chip, it was $4.90 Installed it and the switch box works again. Not bad, a $5 fix. Thanks! 1 Quote Link to comment Share on other sites More sharing options...
zylon Posted July 7, 2012 Share Posted July 7, 2012 ^Anytime^. 1 Quote Link to comment Share on other sites More sharing options...
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