Product Sheets

• NES Mainboard (NTSC)
• Mitsumi Capacitor Kit
• Alps Capacitor Kit (NTSC)

NES Mainboard (NTSC)

Capacitor Guide

Capacitors play a crucial role in maintaining a steady flow of current to other components. With a typical lifespan of 20–30 years—and considering the age of most NES consoles—the original capacitors have likely reached or exceeded their expected service life. For optimal performance and reliability, replacing them is strongly recommended.

When installing new capacitors, be sure to observe the correct polarity. The longer lead indicates the positive side, which corresponds to the "+" symbol in the diagram.

Capacitor	Location
1uF 50v	C23
100uF 6.3v	C1
2.2uF 50v	C9

 

Board Layout

Mitsumi Capacitor Kit

Capacitor Guide

Capacitors play a crucial role in maintaining a steady flow of current to other components. With a typical lifespan of 20–30 years, and considering the age of most NES consoles, the original capacitors have likely reached or exceeded their expected service life. For optimal performance and reliability, replacing them is strongly recommended.

Mitsumi TDK-T31V

Capacitor Location 100uF 10v C25 100uF 16v C22 10uF 16v C6 2200uF 25v C21

Mitsumi TDK-T12V

Capacitor Location 100uF 16v C29 2200uF 25v C8 100uF 25v C31 1uF 50v C2 10uF 16v C32 1uF 50v C6

Mitsumi MTM-8V-0

Capacitor Location 10uF 35v C5 100uF 16v C21 100uF 10v C24 2200uF 25v C20

Alps Capacitor Kit (NTSC)

Capacitor Guide

Capacitors play a crucial role in maintaining a steady flow of current to other components. With a typical lifespan of 20–30 years, and considering the age of most NES consoles, the original capacitors have likely reached or exceeded their expected service life. For optimal performance and reliability, replacing them is strongly recommended.

Alps FR853

Capacitor Location 100uF 10v C25 2200uF 25v C21 100uF 25v C23 1uF 50v C35 10uF 16v C36 1uF 50v C29 400v Diodes Locations: D1, D2, D3, D4 The gray stripe on this diode represents the negative/cathode end. It should match the position in the diagram.

Alps SH-SH5 / FS074

Capacitor Location 1uF 50v C29 100uF 25v C23 100uF 10v C25 10uF 16v C36 1uF 50v  C37 2200uF 25v C21 400v Diodes Locations: D1, D2, D3, D4 The gray stripe on this diode represents the negative/cathode end. It should match the position in the diagram.