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Mortoff Games Sega GameGear Capacitor Replacement Kit User Manual

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Sega GameGear Capacitor Replacement Kit
Sega GameGear Capacitor Replacement Kit
Thank you for your purchase of a Sega GameGear capacitor replacement kit from Mortoff Games. This
guide is designed to help you through the many steps involved in the installation of your replacement
capacitors. If at any time you have questions or need assistance please don't hesitate to contact us at
customerservice@mortoffgames.com
Things you will need
1) Sega GameGear Capacitor Replacement Kit
2) Soldering skills
3) Soldering iron
4) Soldering braid
5) Solder
6) 4.5mm Nutsetter security screw bit
7) Small Philips head screw driver
8) Small needle nose pliers
9) Clean work area and about two to three hours of time
10) Patience
11) Fume hood
Safety
This repair requires hours of extensive solder and unsoldering. Much of the old solder is composed of
lead and other harmful toxins. In addition the board is covered in plastic and glue that will be melted
during this repair. All of these substances should not be inhaled. Throughout this repair you should use a
fume hood to protect yourself from the dangers associated with breathing these fumes in. Please do not
try to do these repairs without one. We are more than happy to provide you with a full refund on this
repair kit rather than have you endanger yourself because you lack the proper protection equipment.
Soldering Skills Needed
This repair requires extensive soldering skills and should not be attempted by a novice. You are more
likely to damage the system if you don't have the proper skills. We recommend that if you are not
completely comfortable with your soldering skills you return this repair kit for a full refund at this time.
Patience
This repair requires roughly two to three hours of intensive work. If you start to get tired we
recommend that you stop and come back to the work at a difference time. Attention to detail is an
absolute must during this repair.
V 1.6
Page 1 of 26

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Summary of Contents for Mortoff Games Sega GameGear Capacitor Replacement Kit

  • Page 1 Page 1 of 26 Sega GameGear Capacitor Replacement Kit Thank you for your purchase of a Sega GameGear capacitor replacement kit from Mortoff Games. This guide is designed to help you through the many steps involved in the installation of your replacement capacitors.
  • Page 2 Sega GameGear Capacitor Replacement Kit Page 2 of 26 Index Topic Page Index of capacitors in kit Introduction to the three versions of the Sega GameGear Using a capacitor checker Introduction to soldering Disassembly guide 9-12 Introduction to capacitors 13-15...

  • Page 3: Table Of Contents

    Sega GameGear Capacitor Replacement Kit Page 3 of 26 Index of Capacitors in Kit In case you are interested here is an index of all of the capacitors include in this repair kit. As you may notice the capacitors are packaged by type and labeled accordingly for ease of usage. If you ever find what you need more of a particular type of capacitor please contact us at Starwander@Comcast.net.
  • Page 4 Sega GameGear Capacitor Replacement Kit Page 4 of 26 Introduction to the Three Versions of the Sega GameGear System There are three versions of the GameGear console in regards to the capacitor layout. To identify what version you have you have to open your console. As you notice in the picture below it has one ASIC chip, however some consoles have two ASIC chips.
  • Page 5 Sega GameGear Capacitor Replacement Kit Page 5 of 26 VA number Picture Introduction: VA number Notice in picture two above it says VA1. There is another version of the Sega GameGear with only one ASIC chip that is labeled VA4.
  • Page 6 Sega GameGear Capacitor Replacement Kit Page 6 of 26 Using a Capacitor Checker While you can certainly change out every capacitor on the circuit board this is both a tiresome and unnecessary action. While you might have heard or read otherwise on the internet if a capacitor is working it does not need to be replaced if it is working within factory guidelines.
  • Page 7 Sega GameGear Capacitor Replacement Kit Page 7 of 26 Soldering Techniques: In order to solder and unsolder correctly you will need a soldering iron, solder and soldering braid. Once you have these items it is safe to proceed forward. For the duration of this project it is not recommend that you use a cold heat or any other instantaneous heating soldering gun, since these guns use an electrical current to melt the solder.
  • Page 8 Sega GameGear Capacitor Replacement Kit Page 8 of 26 Soldering: Now that the solder has been removed you can now remove the object that the solder was holding in place and you are now ready to solder something new into place. During this project it is not safe to use excessive soldering material as bridging between joints is very easy due to their close proximity to each other.
  • Page 9 Sega GameGear Capacitor Replacement Kit Page 9 of 26 Step One: Please turn your system over and locate the six Philips head screws and one 4.5mm Nutsetter screw that are holding the casing together and unscrew them. If you do not have a 4.5mm security screw bit we sell them on our website.
  • Page 10 Sega GameGear Capacitor Replacement Kit Page 10 of 26 Step Two: As you separate the two halves of the casing you will notice two cables that run from the back casing to the front casing; disconnect them. There is also one cable running from the front of the casing to the back;...
  • Page 11 Sega GameGear Capacitor Replacement Kit Page 11 of 26 Step Three: Now that you have separated the front part from the back part back it is time to start its disassembly. Please locate the four Philips head screws holding down the RF shield and unscrew them.
  • Page 12 Sega GameGear Capacitor Replacement Kit Page 12 of 26 Step Four Now that the RF shield has been removed it is time to remove the mother board from the front casing. Please locate the eight Philips head screws that are holding down the mother board and remove them.
  • Page 13 Sega GameGear Capacitor Replacement Kit Page 13 of 26 An Introduction to Capacitors Before we jump into the capacitor replacement it’s important to understand the basics first. A capacitor is used to store electrical energy. It has two listed measurements microfarads (µF) and voltage (V). You will notice when you look at your replacements capacitor it has the microfarads and voltage listed on it.
  • Page 14 Sega GameGear Capacitor Replacement Kit Page 14 of 26 Picture Six: Sample capacitor, surface mount The capacitor seen in picture six above is surface mounted since its legs are soldered directly to the surface of the circuit board. Each type of capacitor has a negative and positive lead. It is very important to make sure that you don’t get these backwards.
  • Page 15 Sega GameGear Capacitor Replacement Kit Page 15 of 26 Most capacitors do not have the positive and negative terminals marked with symbols, but instead the negative terminal is defined by the terminal that originates from the part of the capacitor that has a strip running down it.
  • Page 16 Sega GameGear Capacitor Replacement Kit Page 16 of 26 Step Five: Now that you are familiar with the two types of aluminum electrolytic capacitors in the system it is time to start replacing them; however this is tricky. Removing the surface mount capacitors requires some patience and a delicate touch.
  • Page 17 Sega GameGear Capacitor Replacement Kit Page 17 of 26 As seen in picture nine below CC103, CC101 and CC102 have been replaced. This image is worth studying as it shows how cleanly these replacement capacitors can be installed if care is taken.
  • Page 18 Sega GameGear Capacitor Replacement Kit Page 18 of 26 Radial Mounting Capacitors Installation To start please unsolder the capacitor of interest. We recommend the following strategy. Picture Ten: Proper usage of soldering braid Place the soldering braid over the solder joint and then heat the joint with your soldering iron. The braid will suck up the solder and free the lead.
  • Page 19 Sega GameGear Capacitor Replacement Kit Page 19 of 26 Next you need to solder the replacement capacitor into place. Remember negative to negative and positive to positive. We recommend the following strategy. Picture Eleven: Lead soldering Insert the leads and then bend them at a ninety degree angle. Then cut the leads down to the desired length.

  • Page 20: 22Uf 6.3V

    Sega GameGear Capacitor Replacement Kit Page 20 of 26 1 ASIC (VA1) Capacitor Index Mother Board Listing Part Listing Value 33uf 6.3V 10uf 6.3V 10uF 6.3V 10uF 6.3V 10uF 6.3V 22uF 6.3V 4.7uF 35V 68uF 6.3V 100uF 4V 0.47uF 50V 0.47uF 50V...

  • Page 21: 100Uf 25V

    Sega GameGear Capacitor Replacement Kit Page 21 of 26 Power Board Listing The power board is the circuit board with the power plug on it. Part Listing Value 22uF 35V 100uF 25V 820uF 6.3V Note While examining the circuit board you will notice a variety of small parts that also have numbers that start with C that are not on the above list.

  • Page 22: 100Uf 6.3V

    Sega GameGear Capacitor Replacement Kit Page 22 of 26 1 ASIC (VA4) Capacitor Index Mother Board Part Listing Value Mount Type 33uF 6.3V Radial Mount 100uF 6.3V Radial Mount 22uF 6.3V Radial Mount 22uF 6.3V Radial Mount 10uF 16V Surface Mount...
  • Page 23 Sega GameGear Capacitor Replacement Kit Page 23 of 26 Power Board Listing The power board is the circuit board with the power plug on it. Part Listing Value Mounting Type 22uF 35V Radial Mount 10uf 16V Surface Mount 100uF 25V Radial Mount 820uF 6.3V...

  • Page 24: 10Uf 6.3V

    Sega GameGear Capacitor Replacement Kit Page 24 of 26 2 ASIC Capacitor Index Mother Board Part Listing Value 33uF 6.3V 10uF 6.3V 10uF 6.3V 100uF 6.3V 4.7uF 35V 68uF 6.3V 100uF 4V 0.47uF 50V 0.47uF 50V 10uF 6.3V 22uF 6.3V Audio Board Listing We included audio grade capacitors for use on the audio board.
  • Page 25 Sega GameGear Capacitor Replacement Kit Page 25 of 26 Power Board Listing The power board is the circuit board with the power plug on it. Part Listing Value 22uF 35V 100uF 25V 820uF 6.3V Note While examining the circuit board you will notice a variety of small parts that also have numbers that start with C that are not on the above list.
  • Page 26 Sega GameGear Capacitor Replacement Kit Page 26 of 26 Troubleshooting Section We are sorry to hear that you ran into complications from your repair. Unfortunately this particular repair is difficult to troubleshoot due to the complexity of the repair job, although here are some general guidelines.

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