masterchief217 Posted September 22, 2019 Report Share Posted September 22, 2019 My OG xbox wont turn on. Not a single bulging or leaky cap. I was going to replace all the caps but I noticed this and I dont know what it is, how to tell if its bad or how to order a new one. It looks kinda burned on the top but it just appears to be the rubber and not the part itself. is there a way to check it with a multi meter. The part I am asking about is the one in the first picture Quote Link to comment Share on other sites More sharing options...
jhark Posted September 23, 2019 Report Share Posted September 23, 2019 Its a Metal Oxide Varistor, It looks blown to me, you will need to ckeck the fuse also and replace one or both as needed. It protects against over voltage spikes from the mains power. If you razor blade the plastic cover off it you will most likely see it is burnt and cracked. Quote Link to comment Share on other sites More sharing options...
masterchief217 Posted September 23, 2019 Author Report Share Posted September 23, 2019 1 hour ago, jhark said: Its a Metal Oxide Varistor, It looks blown to me, you will need to ckeck the fuse also and replace one or both as needed. It protects against over voltage spikes from the mains power. If you razor blade the plastic cover off it you will most likely see it is burnt and cracked. THAnK YOU. I did a continuity test and the fuse is blown. the metal oxide varistor is cracked. I dont see any part numbers or voltages or anything. how do I find the right replacement parts? Quote Link to comment Share on other sites More sharing options...
jhark Posted September 23, 2019 Report Share Posted September 23, 2019 (edited) the exact part is TVR 20241X You may have to google the datasheet on that part and find a equivalent part on ebay. one rated for 200 or 220 VRMS should be fine if you are in the USA using 120v. If that is a Europe PSU i'm not sure what the part number is. Or if in a bind you can tare apart an old plug strip sometimes you can salvage one or more out of them.. Edited September 23, 2019 by jhark added info Quote Link to comment Share on other sites More sharing options...
masterchief217 Posted September 24, 2019 Author Report Share Posted September 24, 2019 On 9/23/2019 at 7:10 AM, jhark said: the exact part is TVR 20241X You may have to google the datasheet on that part and find a equivalent part on ebay. one rated for 200 or 220 VRMS should be fine if you are in the USA using 120v. If that is a Europe PSU i'm not sure what the part number is. Or if in a bind you can tare apart an old plug strip sometimes you can salvage one or more out of them.. I cannot seem to find it or an equivalent part and I dont know how to read the data sheet. From what I looked up its a surge protector. If I always have the xbox plugged in to a surge protector could I bypass it? Quote Link to comment Share on other sites More sharing options...
SS_Dave Posted September 24, 2019 Report Share Posted September 24, 2019 If your in the USA this should work https://www.radioshack.com/products/surge-protector But that and the fuse is more than likely the tip of the iceburg. You could tempory disconect it ONLY for TESTING but when you have repaired the rest of the damage replace it!!!! Foot note Be carefull working on the power supply as there can be voltages higher than the input meening 110volt input around 220 volt on the board 220 in 400 in the board. Quote Link to comment Share on other sites More sharing options...
masterchief217 Posted September 25, 2019 Author Report Share Posted September 25, 2019 1 hour ago, SS_Dave said: If your in the USA this should work https://www.radioshack.com/products/surge-protector But that and the fuse is more than likely the tip of the iceburg. You could tempory disconect it ONLY for TESTING but when you have repaired the rest of the damage replace it!!!! Foot note Be carefull working on the power supply as there can be voltages higher than the input meening 110volt input around 220 volt on the board 220 in 400 in the board. So I tried that and it cought fire. The wires I installed are melted but I dont see anything else obviously wrong. Is it possible to get a replacement psu or should I just buy a new xbox. Quote Link to comment Share on other sites More sharing options...
SS_Dave Posted September 25, 2019 Report Share Posted September 25, 2019 It's not ment to be a link just take it out of the board I am talking about the Blue part in the clear wrapping from your 1st pick That part is ment to go short circuit if it sees a high voltage spike thereby causing the fuse to blow. Quote Link to comment Share on other sites More sharing options...
martian225 Posted January 29, 2020 Report Share Posted January 29, 2020 It blew. Quote Link to comment Share on other sites More sharing options...
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