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Sega Master System 2

Power Connector

Plug Type Coaxial / Barrel Connector
Size 5.5mm Outer Diameter / 2.1mm Inner Diameter
Voltage 9V DC
Amperage 500mA
Polarity Center Negative

Output Audio/Video Connector

The Sega Master System 2 only has a single coaxial RF audio/video output unless it's a French model.

RGB Encoder

Sony CXA1145P Pinout

Fujitsu MB3514 Pinout

Video Display Processor

Sega 315-5246 Pinout

Gate Array / IO Controller

SEGA 315-5216 Pinout

 

SEGA 315-5237 Pinout

 

Controller Port Pinout

Pin Function
1 Up
2 Down
3 Left
4 Right
5 No Connection
6 Button 1
7 Light Sensor
8 Ground
9 Button 2

Audio Video Schematics

Sega Master System 2 - PAL / IC BD M4jr / 171-5922-A

Capacitor Lists

Sega Master System 2 - PAL / IC BD M4jr / 171-5922-A

Location Capacitance Voltage
CE 10 16
CE 10 16
CE 10 16
CE 10 16
CE 10 16
CE 10 16
C18 10 16
C31 1 50
C32 10 16
C38 100 16
C41 100 16
C42 100 16
C43 100 16
C44 47 10
C54 10 16

Sega Master System 2 - PAL / IC BD M4 Jr PAL 2M / 171-6395A

Location Capacitance Voltage
CE 10 16
CE 10 16
CE 10 16
CE 10 16
CE 10 16
CE 10 16
C18 10 16
C31 1 50
C32 330 16
C38 100 16
C41 100 16
C42 100 16
C43 100 16
C44 47 10
C59 100 16

Sega Master System 2 - PAL French RGB / IC BD M4Jr. VA1 / 837-7275 / 171-5926-A

Location Capacitance Voltage
C54 100 10
C50 100 16
C53 100 10
CE 10 16
CE 10 16
CE 10 16
C1 47 10
CE 10 16
CE 10 16
CE 10 16
C2 10 16

Adapteur R.V.B. - 837-6345 / 171-5504

Location Capacitance Voltage
C6 10 16
C1 220 25
C2 100 10
C5 220 25