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.