+Mitch Posted April 7, 2002 Share Posted April 7, 2002 Check the power supply with a multimeter and see if it is still working. The 5200 power supply has a fuse in it that has been known to go out. Mitch http://atari7800.atari.org Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 8, 2002 Author Share Posted April 8, 2002 the system , and light goes on but the screen doesent come up Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 8, 2002 Author Share Posted April 8, 2002 The other day my 5200 got shorted out buy a screwdriver hitting and grounding something in the cart port. Does anyone kknow how to fix this? Quote Link to comment Share on other sites More sharing options...
bradjewell Posted April 8, 2002 Share Posted April 8, 2002 how handy are you with an multimeter? Well, I'd say find someone you trust who knows some electronics and let them look at it. If I was closer I would. You just need to see if the problem can be seen, or is deeper. And if it is a replaceable part. Brad Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 Anybody? I know theres someone here w/ 5200 hardware knowledge. I tested the power supply , its working fine. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 9, 2002 Share Posted April 9, 2002 While I am no expert...I may have the thing for you to check out. Do you have a 2 port or 4 port unit? I only ask because my 4 port was doing the exact same thing when I first got it. But since the light came on on the unit just fine...I knew the power supply had to be good. I finally tracked it down to my 4 ports switchbox. The relay wasn't kicking over to actually display the game. For the cost of only about 5 bucks I was able to repair my switchbox. It appears that either the previous owner did something similar...or they plugged an 800 power supply into the thing. I could never figure out which. But I Had to replace the Opamp and Transistor in the switchbox. After that...my 5200 has been going strong. So if you have a 4 port unit...see if you can hear it switch over. If not...then that might actually be your problem. Let us know. Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 no its a 2 port and i took apart the rf modulator today and it looks fine , i dont understand it i cant see what has gone wrong. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 9, 2002 Share Posted April 9, 2002 Hmmm...well..take the case shell off..and open up the shielding. You might actually then be able to either see...or smell what could have gone out. It is possible that one of the chips on the thing was taken out in the short. But I do not know the 5200 nearly as well as I would like. I am very novice electronics guy anyway. I can handle a soldering iron and know how to use a Multimeter...if given the info to check and testpoints locations. But otherwise I would be in the dark as well. I have an Intellivision that does almost the exact same thing. I know it isn't the chips as I swapped them all out with antoher one I have that works...and it still did it. So either my RF isn't working on that unit...or...WAIT!!!!...There has to be a Voltage Regulator in that thing...in fact I know there is!!...Okay...I am not sure what kind it is...but Atari was incredibly fond of 7805 +5 volt regulators. There should be one in the area of the rf cable I would imagine. It is totally possible that it blew on you in the short. I had a heavy sixer that would only give me a black screen when I turned it on...but since it went from static to black screen...I knew the RF was fine. Turned out to be a $2.50 Voltage Regulator I picked up at Radio Shack...and BOOM!!...in a good way...that 2600 now sits proudly in front of the TV on the floor of my Mom's house where she plays Ms. Pac-Man for hours on end! Anybody else with any other ideas? Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 hmmm... ill check for the voltage regulator right now. Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 whats it look like , i have the stripped down 5200 pcb in front of me right now Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 WAIT!!! i found it , theres two of 'em , how do i test to see if its them? Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted April 9, 2002 Share Posted April 9, 2002 well...unfortunately...I haven't realy found a way to reliably test a voltage reg. Might research it a bit online. Perhaps you could understand it better than I. But basically the voltage regualtor actually switches the voltage to the components to make it all work. When they fail...you will get the black screen of death as you are. They are cheap enough...and I assume they are 7805 +5v regulators. Atari used different numbers on their parts...but almost all of their regulators were 7805s. I wonder why no one else has responded with ideas? I am not sure which could be bad if they even are. But I am hoping that is where what got taken out when the short accured. You could just run down to radio shack and get two new ones and stick them on to see what happens. Beyond this...I really haven't any other quick ideas. I suppose one of the chips could have gotten blown but they are pretty damn sturdy to be honest. Good luck with this...I hate to see any Atari that DOA. Quote Link to comment Share on other sites More sharing options...
Skatepunk60 Posted April 9, 2002 Author Share Posted April 9, 2002 Yeah because i got it friday and it blew out saturday Quote Link to comment Share on other sites More sharing options...
bradjewell Posted April 9, 2002 Share Posted April 9, 2002 I deleted the original message, because it was just rambling and not much correctness. Please check below for info on the regulator. Brad [ 04-09-2002: Message edited by: wolfgang ] Quote Link to comment Share on other sites More sharing options...
bradjewell Posted April 9, 2002 Share Posted April 9, 2002 http://www.crownhill.co.uk/item258.htm there you go, cut and past. There is info you can use on the 7805 voltage regulator. Brad Quote Link to comment Share on other sites More sharing options...
TunnelRunner Posted May 10, 2002 Share Posted May 10, 2002 Those voltage regs are available from Best Electronics for about 29 cents. I need to swap out a couple myself, luckily I keep a few handy. TunnelRunner P.S. The 5200 service manual is well worth getting!!! Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.