Oldmannewhobby Posted October 6, 2014 Share Posted October 6, 2014 Attempting repair on rf module. The nipple has somehow come loose and wont send a signal through to the telly. Going to see if I can resolder and get it to work.. Wish me luck. Quote Link to comment Share on other sites More sharing options...
+JasonlikesINTV Posted October 6, 2014 Share Posted October 6, 2014 I have no idea what I'm looking at here, but it sure looks cool and I wish you the best of luck Quote Link to comment Share on other sites More sharing options...
Fushek Posted October 6, 2014 Share Posted October 6, 2014 The nipple has somehow come loose Your wife is out and the nipple is loose ... there's a joke there somewhere . Rev, I'm counting on you to find it! 3 Quote Link to comment Share on other sites More sharing options...
Oldmannewhobby Posted October 6, 2014 Author Share Posted October 6, 2014 Hahaha nipple jokes are always good. Thats the logic board. I won. Puts up a picture again. Now I have to deal with the freezing issue. Tested all the voltage on the powerboard when cold. All voltage runs fine. Played a good half an hour of burger time and she freezes. Retested the voltage board and instead of running at 16v and discharging, the capacitors arr running at 25v steady. The bigger of the 2 capacitors is showing no resistance or charge so im going to guess its fried. Has anybody attempted this before? The part number written on it is not showing up on google and the local leccy shops have no idea. Quote Link to comment Share on other sites More sharing options...
Rev Posted October 6, 2014 Share Posted October 6, 2014 Your wife is out and the nipple is loose ... there's a joke there somewhere . Rev, I'm counting on you to find it! What did I miss? Quote Link to comment Share on other sites More sharing options...
Intymike Posted October 6, 2014 Share Posted October 6, 2014 I have no idea what I'm looking at here, but it sure looks cool and I wish you the best of luck You look at a stripped Intellivision...can't you see the loose nipple? Quote Link to comment Share on other sites More sharing options...
Oldmannewhobby Posted October 6, 2014 Author Share Posted October 6, 2014 You look at a stripped Intellivision...can't you see the loose nipple? Soft core intv porn Quote Link to comment Share on other sites More sharing options...
+intvsteve Posted October 6, 2014 Share Posted October 6, 2014 Soft core intv porn Given what we're looking at, it's hard core. Look at all that raw, hardware! That's a console and it's master in flagrante delicto! 1 Quote Link to comment Share on other sites More sharing options...
slab0meat Posted October 6, 2014 Share Posted October 6, 2014 Man, if my wife and kids were out of the house........ Quote Link to comment Share on other sites More sharing options...
pimpmaul69 Posted October 6, 2014 Share Posted October 6, 2014 Man, if my wife and kids were out of the house........ So thats how you got the name slab0meat? 1 Quote Link to comment Share on other sites More sharing options...
+JasonlikesINTV Posted October 6, 2014 Share Posted October 6, 2014 Slap-yo-meat? 1 Quote Link to comment Share on other sites More sharing options...
slab0meat Posted October 6, 2014 Share Posted October 6, 2014 Full disclosure: That is not me, just a visual representation of my thoughts. The name, however, was not from anything like that at all. Quote Link to comment Share on other sites More sharing options...
+JasonlikesINTV Posted October 6, 2014 Share Posted October 6, 2014 Full disclosure: That is not me, just a visual representation of my thoughts. The name, however, was not from anything like that at all. Oh, I get it! The monitor is for playing Intellivision, the lotion is to keep your hands from drying out from all of the controller action, and the tissues are for when you cry tears of joy from playing all of your favorite games. 4 Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 Hahaha nipple jokes are always good. Thats the logic board. I won. Puts up a picture again. Now I have to deal with the freezing issue. Tested all the voltage on the powerboard when cold. All voltage runs fine. Played a good half an hour of burger time and she freezes. Retested the voltage board and instead of running at 16v and discharging, the capacitors arr running at 25v steady. The bigger of the 2 capacitors is showing no resistance or charge so im going to guess its fried. Has anybody attempted this before? The part number written on it is not showing up on google and the local leccy shops have no idea. Capacitors are a bit tricky to test in circuit. Ideally you need to pull up a leg. Did you check the voltage at each of the 5 output pins, against the pin furthest away on the 2-pin prong? Are you getting stable 5v and 12v on the respective pins? Replacements for both large capacitors are readily available. http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823596 http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823618 And the smaller one too: http://au.element14.com/jsp/search/productdetail.jsp?SKU=1823715 When replacing capacitors, use the same farad rating, and the same or higher voltage rating. - James Quote Link to comment Share on other sites More sharing options...
pimpmaul69 Posted October 7, 2014 Share Posted October 7, 2014 (edited) Capacitors are a bit tricky to test in circuit. Ideally you need to pull up a leg. Did you check the voltage at each of the 5 output pins, against the pin furthest away on the 2-pin prong? Are you getting stable 5v and 12v on the respective pins? Replacements for both large capacitors are readily available. http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823596 http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823618 And the smaller one too: http://au.element14.com/jsp/search/productdetail.jsp?SKU=1823715 When replacing capacitors, use the same farad rating, and the same or higher voltage rating. - James if you want to be able to test capacitors in circuit buy an esr meter. I have one called a blue esr meter. Works great. If you buy a blue esr look up blue esr meter diode mod. You can no longer test batteries with it if you do but you dont blow up your meter if you hook it up to a loaded 400v + capacitor. Edited October 7, 2014 by pimpmaul69 Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 Yes you do need a proper meter to test capacitance. Testing resistance, etc won't tell you if the cap is good or not. - J Quote Link to comment Share on other sites More sharing options...
Oldmannewhobby Posted October 7, 2014 Author Share Posted October 7, 2014 Thanks fellas, I did not know that I couldnt test while wired. Regardless I tested at the ribbon strip pins with the strip unplugged of course. I knew they'd be available, but there are no markings on mine so I didnt know the voltage. Thanks for the link, ill order some now. Quote Link to comment Share on other sites More sharing options...
Oldmannewhobby Posted October 7, 2014 Author Share Posted October 7, 2014 Capacitors are a bit tricky to test in circuit. Ideally you need to pull up a leg. Did you check the voltage at each of the 5 output pins, against the pin furthest away on the 2-pin prong? Are you getting stable 5v and 12v on the respective pins? Replacements for both large capacitors are readily available. http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823596 http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823618 And the smaller one too: http://au.element14.com/jsp/search/productdetail.jsp?SKU=1823715 When replacing capacitors, use the same farad rating, and the same or higher voltage rating. - James Capacitors are a bit tricky to test in circuit. Ideally you need to pull up a leg. Did you check the voltage at each of the 5 output pins, against the pin furthest away on the 2-pin prong? Are you getting stable 5v and 12v on the respective pins? Replacements for both large capacitors are readily available. http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823596 http://au.element14.com/jsp/search/productdetail.jsp?SKU=8823618 And the smaller one too: http://au.element14.com/jsp/search/productdetail.jsp?SKU=1823715 When replacing capacitors, use the same farad rating, and the same or higher voltage rating. - James When cold im getting the correct output. 12v 5v steady 16.5v drops to 0. 0v then -2v. They all still hold the same except for the capacitors which hold steady at 25v after it freezes. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 Trouble is, the larger 10,000uF 16V power capacitor is not connected to the circuit that supplies unregulated voltage at pin 3. It is in the side of the circuit that supplies the +5V and -2V. If anything it sounds like the 2200uF 25V power capacitor could be failing. Only way to be sure is to pull them and test them with the correct ESR meter. If you are not worried about the cost of replacement capacitors, it wouldn't hurt to replace all three of the electrolytics - they are after all over 30 years old. - J Quote Link to comment Share on other sites More sharing options...
pimpmaul69 Posted October 7, 2014 Share Posted October 7, 2014 Trouble is, the larger 10,000uF 16V power capacitor is not connected to the circuit that supplies unregulated voltage at pin 3. It is in the side of the circuit that supplies the +5V and -2V. If anything it sounds like the 2200uF 25V power capacitor could be failing. Only way to be sure is to pull them and test them with the correct ESR meter. If you are not worried about the cost of replacement capacitors, it wouldn't hurt to replace all three of the electrolytics - they are after all over 30 years old. - J you can test with an esr meter without removing them. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 That's good to know - what about with the capacitance mode on a regular multimeter? - J Quote Link to comment Share on other sites More sharing options...
pimpmaul69 Posted October 7, 2014 Share Posted October 7, 2014 (edited) No. On a regular multi meter capacitance mode you need to remove them. If your multi meter supports esr then you can leave them in. Also if it does support esr then you dont need to care about positive and common (ground) Edited October 7, 2014 by pimpmaul69 Quote Link to comment Share on other sites More sharing options...
Oldmannewhobby Posted October 7, 2014 Author Share Posted October 7, 2014 Ah ok. I must have misread the circuit. It looked to me that the 2 latger ones ran in series and the 25v was used to recharge the 16v. That makes more sense. Ill just replace them all anyway. Probably the voltage reg too. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 Thanks for the confirmation. I ask because I only have a regular meter with capacitance mode (non ESR), and have been typically removing capacitors to test them. Quote Link to comment Share on other sites More sharing options...
HunterZero Posted October 7, 2014 Share Posted October 7, 2014 (edited) Ah ok. I must have misread the circuit. It looked to me that the 2 latger ones ran in series and the 25v was used to recharge the 16v. That makes more sense. Ill just replace them all anyway. Probably the voltage reg too. No, they're not in series. The common connection of the capacitors is the common -ve ground rail. Perhaps it's possible that current is bleeding backwards that way across a faulty partially shorted 10,000uF? Edited October 7, 2014 by HunterZero Quote Link to comment Share on other sites More sharing options...
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