Dreamcast Controller Board Fix

The SEGA Dreamcast suffers from a really common problem that causes the controllers to stop functioning. This is normally triggered if you have a controller with a loose wire or if you repeatedly unplug/replug controllers while the Dreamcast is powered on.

The root cause of the problem is a blown fuse (labelled F1) on the controller board, the fuse is probably underrated as many people have had no further trouble after bypassing it entirely. However, bypassing the fuse does risk damage to other parts of the Dreamcast if there is a sizeable power surge so this isn't an ideal fix.

The Internet is full of terrible hacky fixes for this issue including:
  • Replacing the fuse with a 10 Ohm resistor (wat?!)
  • Twisting the fuse legs together to bypass the blown fuse
  • Adding two resistors in parallel (double wat?!)
  • Replacing the normally totally unrelated 13 Ohm R1 resistor as well the F1 fuse with 10 Ohm resistors
All of these fixes are wrong. Bypassing a fuse is obviously bad because the fuse is there to prevent power surges, presumably the Dreamcast devs did that for a reason. Replacing with a resistor is really wrong, because you will cause a voltage drop in the circuit and probably end up with a bunch of weirdness if you plug in a full array of controllers and VMUs or something.

Nowadays we have a much better solution in PolySwitch fuses. These fuses are resettable - if they blow, simply turning the Dreamcast off and on again will reset the fuse and you can get back to playing. The F1 fuse that that needs replacing is rated at 390 mA (milliamps), Amazon sell near perfect replacement PolySwitch fuses at 400 mA.


  • I cannot be held responsible for any damage you do to yourself, your belongings, your friends, your family, or your household pets or anything else while following these instructions. This is all on you!
  • I GIVE ABSOLUTELY NO WARRANTY on the correctness and usability of the information on this page. It works for me so I thought I'd post it
  • No, I won't fix your Dreamcast for you
  • The Amazon link below is an affiliate link, not sure why you need to know that, but full disclosure etc.


You Will Need


Before You Start

Turn off the power! Unplug the power cable! Switch the power switch on and off a few times to try to discharge the capacitors!



  1. Open the Dreamcast. You can do this by removing the modem from the side, and then removing the 4 case screws which are now visible
  2. Locate the F1 fuse. It is the blue fuse on the right, next to the black capacitor and the ribbon cable. It is labelled F1.
  1. Determine if you can desolder the fuse from above. Some models of the Dreamcast have this fuse soldered from the top. The model in the picture above has the fuse soldered from below. If your model allows desoldering the fuse from above then hold your soldering iron to the legs of the fuse and gently prise it away from the board with the pliers.
  2. Remove the power board. Be very careful! The capacitors on this board may hold charge! Remove the two screws holding the power board and then gently pull it upwards holding the plastic clip on the side out of the way. Set the power board aside gently.
  3. Remove the controller board. With the power board out of the way you can now remove the 4 gold screws holding the controller board. Leave everything else connected and flip the board over to find the solder points.
  1. Locate the solder points. These are the two solder points directly below the second screw hole from the right in the image above. Double and triple check you've located the right ones!
  2. Remove the fuse. Heat the solder points and gently prise out the fuse using the pliers from the other side. If you like, you can remove the solder entirely using the solder wire.
  3. Add the resettable fuse. With the old F1 fuse removed, now put a new resettable fuse in it's place. Replace/reuse the solder points. Make sure you don't leave the legs of the new fuse sticking from the bottom or you'll short out the Dreamcast on the case! Make sure the solder points look as close to the original as possible (no wires sticking through or solder leaking over PCB tracks)
  4. Put everything back together. Replace everything in reverse order. Make sure that the power board is seated firmly and that you screw everything down. Replace the case and the case screws.
That's it! Now you should power on and the controller board should work and you'll never have to worry about a blown fuse again!


  1. hello! thank you for clarifying! Very useful post! I have a question exactly about fuser. I want to change it and now I'm choosing what to buy. Have you ever heard about Schneider fuser and is it good? I look on it here http://hardware.eu it is not bad...There are a lot of different and price on it also good...So..what can you say?

  2. Dream cast was doing a wonderful business in the present me but as www.paraphrasinguk.com say they have one problem because of which they lost their business and that was this their controller get burn after some time.

  3. Education is very less in our country. If you would look at the literacy rate of our country you will come to know that from write a paper online free where all these illiterate people are coming from. The people of the present time do not trust education they just trust money.

  4. original resistor rf25scvtp0.39ohmk
    0.25 watt 0.39 ohm
    R=U/I and P=U*I
    need fuse 0.8 A

    another calculate, open manual for maple and look maximum current consumption
    controller - 50 mA
    VMU - 13 mA
    vibro - 160mA
    (50+13+160)*4=892 mA

    1. This comment has been removed by the author.

    2. wow ! it seems to be correct... in my opinion, nobody will exceed 300mA, the vibro is not very common but yeah, a 800mA resettable fuse to respect the original values seems right.

  5. The dynamic of the story is told for the candidates. The use of the do my english homework for me for the surrounding for the pages. The tool is fit for the adherence of the quite good items for humans.

  6. This MarathonBet review aims to introduce you to a bookmaker that has been around for a while but hasn’t challenged the big boys yet. Their overall service doesn’t have many drawbacks, but it’s not very good in many areas.
    Our total survey of MyBookie will give you everything this online sportsbook brings to the table. With its long-standing notoriety, MyBookie is one of the highest level games wagering destinations, read detailed Mybookie Review.
    Read detailed Betsson Review here. Betsson is one of the most popular betting platforms in the world. Players are looking forward to finding a variety of sports betting markets to venture into, as well as products like casino, live casino, and poker.

  7. Usually people cannot differentiate between prewritten essays and customized essays; royalessays.co.uk custom written papers are specifically written according to your individual prescriptions.

  8. Great piece of information on tech. Also I'm freelance writer who work at the Research Paper Writing Service for more than a decade now and has helping student in their academic needs globally. Good work at very affordable price. NowGet Coupon and Get your paper

  9. The blog was really nice with lot of information that is very useful for many. Keep posting more in future blog post.
    Indian Horoscope Reader in Texas,
    Get Ex Love Back,

  10. Town of Salem is a program put together game that provokes players with respect to their capacity to convincingly lie as well as identify when different players are lying. The game reaches from 7 to 15 players. These players are haphazardly separated into arrangements - Town of Salem Online Free Online Serial Killers, Arsonists and Neutrals. On the off chance that you are a Town part (the heroes) you should find the Mafia and different bad guys before they kill you. The catch? You don't have any idea who is a Town part and who is a bad guy. In the event that you are an underhanded job, for example, a Serial Killer, you furtively murder town individuals in the shroud of night and attempt to try not to get found out.

  11. If you’re looking for a fun and challenging way to keep your mind sharp, look no further than Wordle Nyt! This popular brain game is perfect for all ages and can be played online or offline.

  12. Wordle new york times isn’t just a game; it’s also a powerful tool for learning new vocabulary and expanding your understanding of language. By playing Wordle, you can not only have fun and sharpen your mind, but also learn new words and deepen your understanding of how language works.

  13. flip a coin (heads or tails)is a fun and simple online game that you can play in your web browser. All you have to do is make a guess on whether the coin will land on heads or tails. It’s a great game for those times when you need a quick and easy break from your busy day.

  14. MineSweeper (Campo Minato) รจ un celebre gioco passatempo nato negli anni 90. Per vincere, bisogna evitare le mine.

  15. I had an XBOX 360 but my contoller that caused same problem. However, one of my friend at 2 Dollar Essay helped me to fix this issue

  16. This comment has been removed by the author.

  17. Same day Payday Loans 400 dollars allow you to get the money in a lump sum and then pay it back over time with regular monthly payments. This will make it more convenient for you to manage 600 Payday Loans Online your finances.

  18. As a programmer myself, I've found that mastering languages like Python or R opens up a world of possibilities, especially in fields like data science. However, when it comes to our specialized experts like Spss consulting services can be a game-changer. Whether you're new to programming or a seasoned pro, having experts guide you through SPSS can save time and effort, ensuring you get the most out of your data analysis

  19. we can help you find the loans that suit you well with affordable rates and no hidden fees. So you will always $400 Payday Loans feel safe and well-informed about how much you will be charged about your loan.

  20. Asking help from your friends No verification payday loans direct lenders and loved ones can be a much better way than borrowing from a financial institution, for their low costs and lax requirements. Remember to repay the money on No Credit Check Loans time – you wouldn't want to damage your relationship with them.

  21. Different states may payday loans online have additional rules regarding the amount you can borrow, and the maximum interest lenders can charge you. In some states, NSF fees are allowed when you don’t have sufficient funds to repay your debt. In other states, local laws forbid online payday loans instant approval payday lending.

  22. I recently had the pleasure of using Do My Essay   for a challenging assignment, and I am thoroughly impressed with their exceptional service and quality. From start to finish, my experience was seamless and highly satisfying.