Brufnus Posted September 24 Share Posted September 24 Hi, I have a couple of PEBs which doesn't power on, not even the fan. Is there some easy fix to this, or will it have to be investigated more thoroughly? None of them have a fuse plug next to the 220V receptacle... 1 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted September 24 Share Posted September 24 2 minutes ago, Brufnus said: Hi, I have a couple of PEBs which doesn't power on, not even the fan. Is there some easy fix to this, or will it have to be investigated more thoroughly? None of them have a fuse plug next to the 220V receptacle... There is a buch of info here on Atariage. Here is one link: There is a fuse buried in the Transformer that can blow and need to be replaced. Or you can use a more modern power supply in it. Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 24 Author Share Posted September 24 41 minutes ago, RickyDean said: There is a buch of info here on Atariage. Here is one link: There is a fuse buried in the Transformer that can blow and need to be replaced. Or you can use a more modern power supply in it. Yeah, thanks! I saw something about this; however I was under the impression the fan would still rotate though, if this was the reason? Perhaps I should dig into the transformers and check up on that one. c",) Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted September 24 Share Posted September 24 2 hours ago, Brufnus said: None of them have a fuse plug next to the 220V receptacle... I'm not sure what this means. Are you supplying 220V, to these units? Is there something physically missing? Are you using a tester? 2 hours ago, Brufnus said: Is there some easy fix to this Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 24 Author Share Posted September 24 5 minutes ago, HOME AUTOMATION said: I'm not sure what this means. Are you supplying 220V, to these units? Is there something physically missing? Are you using a tester? Well, it's European versions so they take 220V instead of 110V. Anyway, when I plug them in and turn them on, nothing happens whatsoever. I don't see any missing components, but one of them has a box with some weird looking components added; perhaps I should take a photo of that... 1 Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted September 24 Share Posted September 24 (edited) On 1/29/2022 at 6:08 PM, HOME AUTOMATION said: One way around this, assuming there is no serious internal fault condition. Would be to permanently affix a thermal fuse or two, to the core, in series with the supply line, and connected to the transformer's 100vac and 220vac taps. I probably should have worded this a little differently... One way around this, assuming there is no serious internal fault condition. Would be to permanently affix a thermal fuse or two, to the core, in series with the supply line, and with the supply lines connected across the transformer's 100vac and 220vac taps. That would work for a 120V, supply. New York City, supplies 125vac, so that would go across the 115vac and 240vac, taps. According to the schematic: Without any connection available to the common(wh)... the highest voltage that the primaries' other taps could accommodate, would be 140vac. So, you would have to do some digging. Unless you have a step down transformer handy. Edited September 24 by HOME AUTOMATION 1 Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 24 Author Share Posted September 24 Well I don't reside in New York City. Anyway, I did a little more work on one of them (the ugliest of them; it has some corrosion unfortunately which I'll have to deal with as well) - however, that one now has +12V and +5V respectively, on the disk drive connector, but the fan doesn't spin. So I'll probably transfer these components to the other one, which is in a far better condition cosmetically, mount a new fan and put the other one on my long term to do-list. 5 Quote Link to comment Share on other sites More sharing options...
humeur Posted September 24 Share Posted September 24 If the PEB is 220 V, the fuse is hidden next to it, you have to open a hatch. moreover in the USA the voltage is 110 volts Si la peb est en 220 V le fusible est cache juste a cote il faut soulever une trappe. de plus au usa la tension est de 110 volts Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted September 24 Share Posted September 24 1 hour ago, humeur said: ...moreover in the USA the voltage is 110 volts ...When/where was that, as far as I know, we've been on 120 Volts, mostly ...at least during my lifetime... Quote Link to comment Share on other sites More sharing options...
Tursi Posted September 24 Share Posted September 24 "The first power systems were 110 volts. Edison chose that as a good compromise voltage to make his light bulb work well (this voltage was high enough that the bulb gave off a good amount of light, but this voltage was not so high that it caused the bulb to burn out quickly). By the 1930’s the voltage had increased to 115 volts. In 1968 the National Electrical Code (NEC) finally changed the values for motor ratings to reflect this voltage. In 1984 the NEC was changed so that the standard voltage used for load calculations was changed to 120 volts. Since our electric system originally supplied 110 volts that value became embedded in people’s minds and a lot of people still refer to our system as 110/220. Since we used 115 volts for about 50 years a lot of people have that in their minds and still refer to our system as 115/230. But those days are long past. The U.S. is now 120/240 volts." From a rather nice reply on Quora. 7 2 Quote Link to comment Share on other sites More sharing options...
humeur Posted September 24 Share Posted September 24 (edited) 5 hours ago, HOME AUTOMATION said: ...When/where was that, as far as I know, we've been on 120 Volts, mostly ...at least during my lifetime... For 10 volts you shouldn't quibble Pour 10 volts il faut pas chipoter In addition, the electrical standard has changed to 220 Volts no longer exists in Europe now it is 230 + - 10% Norme EN 50160 En plus les norme électrique ont changer le 220 Volts n'existe plus en Europe maintenant c'est 230 + - 10% Norme EN 50160 Edited September 24 by humeur Quote Link to comment Share on other sites More sharing options...
+FarmerPotato Posted September 25 Share Posted September 25 13 hours ago, Tursi said: Since we used 115 volts for about 50 years a lot of people have that in their minds and still refer to our system as 115/230. But those days are long past. The U.S. is now 120/240 volts." I've been confused by this until now. Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 25 Author Share Posted September 25 17 hours ago, humeur said: If the PEB is 220 V, the fuse is hidden next to it, you have to open a hatch. moreover in the USA the voltage is 110 volts Si la peb est en 220 V le fusible est cache juste a cote il faut soulever une trappe. de plus au usa la tension est de 110 volts It's 220V, yes. Where should that hatch be? I've only seen the screw type fuse holder right next to the power cord (on some of them). Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 25 Author Share Posted September 25 13 hours ago, Tursi said: "The first power systems were 110 volts. Edison chose that as a good compromise voltage to make his light bulb work well (this voltage was high enough that the bulb gave off a good amount of light, but this voltage was not so high that it caused the bulb to burn out quickly). By the 1930’s the voltage had increased to 115 volts. In 1968 the National Electrical Code (NEC) finally changed the values for motor ratings to reflect this voltage. In 1984 the NEC was changed so that the standard voltage used for load calculations was changed to 120 volts. Since our electric system originally supplied 110 volts that value became embedded in people’s minds and a lot of people still refer to our system as 110/220. Since we used 115 volts for about 50 years a lot of people have that in their minds and still refer to our system as 115/230. But those days are long past. The U.S. is now 120/240 volts." From a rather nice reply on Quora. Indeed, a 12V car/motorcycle system isn't 12V either, but rather 13-14V. Quote Link to comment Share on other sites More sharing options...
Brufnus Posted September 25 Author Share Posted September 25 11 hours ago, humeur said: For 10 volts you shouldn't quibble Pour 10 volts il faut pas chipoter In addition, the electrical standard has changed to 220 Volts no longer exists in Europe now it is 230 + - 10% Norme EN 50160 En plus les norme électrique ont changer le 220 Volts n'existe plus en Europe maintenant c'est 230 + - 10% Norme EN 50160 Correct, but despite the actual voltage we still refer to it as 220V. It's not really important with respect to my issues, is it? haha Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted September 25 Share Posted September 25 If you look next to the power cord, you will see a dark box with a square insert (see picture below, as it basically looks like part of the plug socket). On the sides of the insert, you will see numbers (110, 220, 100, and an arrow outside the square insert at the top center). On a 220V PEB, the arrow should be pointing to the 220 on the insert. The insert conceals the fuse, as it is the top of the mains fuse holder. This allowed the rocker switch PEBs to be easily set to the local line voltage without having to open the PEB. If that fuse is good and the fan does not turn, either the fan is bad or there is too much gunk on the motor shaft keeping it from rotating. Since you get the inside voltages in the PEB now, the problem there is definitely the fan itself (or its cabling). It is connected before the transformer, so the transformer's internal fuse mentioned by others here does not affect it. 4 Quote Link to comment Share on other sites More sharing options...
jrhodes Posted September 25 Share Posted September 25 Off topic, but i feel like "Dead PEBs" could be a good name for a band. Circuit bending chip tunes using TI hardware type of music you know? 🎶 Quote Link to comment Share on other sites More sharing options...
Tursi Posted September 25 Share Posted September 25 12 hours ago, FarmerPotato said: I've been confused by this until now. I kind of was too, that was why I decided to go look it up!! Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted September 25 Share Posted September 25 6 hours ago, jrhodes said: Off topic, but i feel like "Dead PEBs" could be a good name for a band. Circuit bending chip tunes using TI hardware type of music you know? 🎶 The name has a "Dead Kennedys" rhythm. 1 Quote Link to comment Share on other sites More sharing options...
TheMole Posted September 26 Share Posted September 26 On 9/25/2024 at 6:04 PM, OLD CS1 said: The name has a "Dead Kennedys" rhythm. Does that mean you say "Pee Ee Bee" instead of "Peb"? 1 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted September 26 Share Posted September 26 3 hours ago, TheMole said: Does that mean you say "Pee Ee Bee" instead of "Peb"? Yes. 1 Quote Link to comment Share on other sites More sharing options...
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