SEGA Master System AC Mains Adaptor (3008-05) Refurbishment:
This is not so much a log but more of an information follow up post with very little refurbishment required.
The SEGA 3008-05 AC Mains Adaptor was usually used for the Master System and Game Gear and have a much lower 500mA rating than the 1.2A you get with the Mega Drive Mains Adaptor.
Model No: 3008-05
Input: 240V 50Hz
Output: 10v DC 500mA
Polarity: Center Negative
As with the Mega Drive PSU you will need a 4mm HEX driver to open it up and again I recommend the:
Wera Kraftform Micro Series due to the small 7mm diameter holes the screws are inserted into:
There are two small clips holding it together in towards the middle of the adaptor but it open with easily with some gentle applied pressure and the internals can be simply lifted out of the housing:
Everyone of these I have opened up has had a leaking 3300μF capacitor inside of them:
This was removed:
The PCB was then cleaned up using Isopropanol:
And a new and better rated °105C 25v 3300μF capacitor was installed:
The rear of the PCB had a lot of from factory flux residue on it and some corrosion on the negative & positive terminal connectors:
Which I also cleaned up before re-assembling the adaptor:
Original 1602-05 Component List:
- 1x 3300μF 16v °85C Capacitor
- 4x IN4001 Diode
- 1x 3.3KΩ Resistor
There really isn’t much that can go wrong with these, but replacing the single capacitor should at this point in time be done as a matter of maintenance.