How to solve some Dreamcast
problems

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How to fix autoreset problem Dreamcast

Place your Dreamcast upside down and remove the modem using the appropriate push. Remove the four screws at the corners of the console

    dreamcast laser recalibration          

Fold again dreamcast and now raised around the top cover slowly. Once you have located the motherboard (see figure), remove the two screws and hooks that hold it to the support.

              dreamcast auto          

Use a screwdriver to pry and lift the entire block of the motherboard, proceed gently in small doses until it is completely removed.

              dreamcast auto             

In the figure below, is marked with the element that is due to auto-reset. It should clean up the stamps with a sandpaper, rubbing gently, remove all dirt from each tooth. To improve the contacts, it is recommended to gently pull down the entire "comb" (or higher, if your console is NTSC)

              dreamcast auto

Laser calibration Dreamcast

Place your Dreamcast upside down and remove the modem using the appropriate push. Remove the four screws at the corners of the console

    dreamcast laser recalibration               

Fold again dreamcast and now raised around the top cover lentamentecome shown. You'll immediately notice the combined optical Dreamcast, if the lens is positioned at the upper limit of his cart must provvediate to do it with your fingers or a screwdriver, being careful not to touch the lens in any way, slowly push from below up to the limit, it should follow a "tack" to warning you have reached the end of the carriage.

       dreamcast laser recalibration                   

disengaged from the threads of the optical stop blocking them, do not force it too much or you risk breaking the locks or to wrest some contact wires.

       dreamcast laser recalibration             

Now take the lid of the console that you have previously raised and place in parallel in order to create a kind of useful support to support the optical drive we're going to remove

       dreamcast laser recalibration              

As anticipated, raised gently and slowly the entire optical drive, do not force but limit yourself to flip it 180 degrees so as to place it upside down, on top of the cover previously positioned.

       dreamcast laser recalibration              

Now you will have a beautiful view of the bottom and you can focus on a particular area of ​​the unit, at the bottom it is the so-called "pot" (see image below), the real cause of your evils is he. The potentiometer has the function to adjust the power of the laser disk of the console. The reason why some games are not read, is due to the fact that the potentiometer with wear and over time, tends to ruotarsi alone and so change the factory regulations. Each console need all your settings, so you can not say exactly how much you'll have to turn the potentiometer, the only advice is to always proceed in a clockwise direction and small steps (one degree at a time). This in case you make manually, or you can provide an ohm meter or oscilloscope to accurately calibrate.

       dreamcast laser recalibration              

If you are doing by hand, proceed to trial, if a degree is not enough, do another degree until you will reached the factory settings and the games will all be readable. It can also be very useful to clean the lens, but be very careful and only use a lightly dampened cottonfiock alchool. With small circular movements will clean the lens. To know the types of sound reading of a disc: in the case where the disk starts and stops for a few seconds, then it must be calibrated again in the case in which the disc part, runs fast and continues to turn followed by the sound of the lens, then it is working in the case where the disk is not part and the console remains on, have some other problem not attributable to the lens. When you have solved the problem, remember to replace the wires in their proper locks, and does not need to rispostiate the lens of the dreamcast, because once the console will turn on, will automatically.

       dreamcast laser recalibration