# Product Sheets

# 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.

<table border="1" id="bkmrk-capacitor-location-1" style="border-collapse: collapse; width: 100%; height: 119.2px;"><colgroup><col style="width: 28.1548%;"></col><col style="width: 71.9644%;"></col></colgroup><tbody><tr style="height: 29.8px;"><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">1uF 50v</td><td style="height: 29.8px;">C23</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">100uF 6.3v</td><td style="height: 29.8px;">C1</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">2.2uF 50v</td><td style="height: 29.8px;">C9</td></tr></tbody></table>

###  

### **Board Layout**

[![Screenshot 2025-05-25 at 8.47.38 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/scaled-1680-/vwD1Ou5nl92Yb5kh-screenshot-2025-05-25-at-8-47-38-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/vwD1Ou5nl92Yb5kh-screenshot-2025-05-25-at-8-47-38-am.png)

# 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

<table border="1" id="bkmrk-capacitor-location-1" style="border-collapse: collapse; width: 100%; border-width: 1px; border-style: none;"><colgroup><col style="width: 33.3731%;"></col><col style="width: 4.32544%;"></col><col style="width: 62.4207%;"></col></colgroup><tbody><tr><td>[![Screenshot 2025-05-26 at 9.26.11 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/scaled-1680-/YY3j6r5nIVHNblNo-screenshot-2025-05-26-at-9-26-11-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/YY3j6r5nIVHNblNo-screenshot-2025-05-26-at-9-26-11-am.png)</td><td>  
</td><td><table border="1" style="border-collapse: collapse; width: 100.178%;"><colgroup><col style="width: 50.0891%;"></col><col style="width: 50.0891%;"></col></colgroup><tbody><tr><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr><td style="height: 29.8px;">100uF 10v

</td><td style="height: 29.8px;">C25</td></tr><tr><td style="height: 29.8px;">100uF 16v

</td><td style="height: 29.8px;">C22</td></tr><tr><td style="height: 29.8px;">10uF 16v

</td><td style="height: 29.8px;">C6</td></tr><tr><td style="height: 29.8px;">2200uF 25v

</td><td style="height: 29.8px;">C21</td></tr></tbody></table>

</td></tr></tbody></table>

### Mitsumi TDK-T12V

<table border="1" id="bkmrk-capacitor-location-1-1" style="border-collapse: collapse; width: 100%; border-width: 1px; border-style: none;"><colgroup><col style="width: 33.3717%;"></col><col style="width: 4.29065%;"></col><col style="width: 62.3336%;"></col></colgroup><tbody><tr><td>[![Screenshot 2025-05-26 at 9.31.57 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/scaled-1680-/C5pdvJtHjUgqNrtF-screenshot-2025-05-26-at-9-31-57-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/C5pdvJtHjUgqNrtF-screenshot-2025-05-26-at-9-31-57-am.png)</td><td>  
</td><td><table border="1" style="border-collapse: collapse; width: 100.178%;"><colgroup><col style="width: 50.0891%;"></col><col style="width: 50.0891%;"></col></colgroup><tbody><tr><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr><td style="height: 29.8px;">100uF 16v

</td><td style="height: 29.8px;">C29</td></tr><tr><td style="height: 29.8px;">2200uF 25v

</td><td style="height: 29.8px;">C8</td></tr><tr><td style="height: 29.8px;">100uF 25v

</td><td style="height: 29.8px;">C31</td></tr><tr><td style="height: 29.8px;">1uF 50v

</td><td style="height: 29.8px;">C2</td></tr><tr><td>10uF 16v

</td><td>C32</td></tr><tr><td>1uF 50v

</td><td>C6</td></tr></tbody></table>

</td></tr></tbody></table>

### Mitsumi MTM-8V-0

<table border="1" id="bkmrk-capacitor-location-1-2" style="border-collapse: collapse; width: 100%; border-width: 1px; border-style: none;"><colgroup><col style="width: 33.3731%;"></col><col style="width: 4.32544%;"></col><col style="width: 62.4207%;"></col></colgroup><tbody><tr><td>[![Screenshot 2025-05-26 at 9.32.51 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/scaled-1680-/kY4n26EbhmcAVfyg-screenshot-2025-05-26-at-9-32-51-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-05/kY4n26EbhmcAVfyg-screenshot-2025-05-26-at-9-32-51-am.png)</td><td>  
</td><td><table border="1" style="border-collapse: collapse; width: 100.178%;"><colgroup><col style="width: 50.0891%;"></col><col style="width: 50.0891%;"></col></colgroup><tbody><tr><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr><td style="height: 29.8px;">10uF 35v

</td><td style="height: 29.8px;">C5</td></tr><tr><td style="height: 29.8px;">100uF 16v

</td><td style="height: 29.8px;">C21</td></tr><tr><td style="height: 29.8px;">100uF 10v

</td><td style="height: 29.8px;">C24</td></tr><tr><td style="height: 29.8px;">2200uF 25v

</td><td style="height: 29.8px;">C20</td></tr></tbody></table>

</td></tr></tbody></table>

# 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

<table border="1" id="bkmrk-capacitor-location-1" style="border-collapse: collapse; width: 100%; border-width: 1px; border-style: none;"><colgroup><col style="width: 33.3731%;"></col><col style="width: 4.32544%;"></col><col style="width: 62.4207%;"></col></colgroup><tbody><tr><td>[![Screenshot 2025-06-14 at 10.38.43 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-06/scaled-1680-/Cbe4OOj9Qf0ctwko-screenshot-2025-06-14-at-10-38-43-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-06/Cbe4OOj9Qf0ctwko-screenshot-2025-06-14-at-10-38-43-am.png)

</td><td>  
</td><td><table border="1" style="border-collapse: collapse; width: 100.178%; height: 149px;"><colgroup><col style="width: 50.0891%;"></col><col style="width: 50.0891%;"></col></colgroup><tbody><tr style="height: 29.8px;"><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">100uF 10v</td><td style="height: 29.8px;">C25</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">2200uF 25v</td><td style="height: 29.8px;">C21</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">100uF 25v</td><td style="height: 29.8px;">C23</td></tr><tr style="height: 29.8px;"><td style="height: 29.8px;">1uF 50v</td><td style="height: 29.8px;">C35</td></tr><tr><td>10uF 16v</td><td>C36</td></tr><tr><td>1uF 50v</td><td>C29</td></tr></tbody></table>

**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.

</td></tr></tbody></table>

### Alps SH-SH5 / FS074


<table border="1" id="bkmrk-capacitor-location-1-1" style="border-collapse: collapse; width: 100%; border-width: 1px; border-style: none;"><colgroup><col style="width: 33.3717%;"></col><col style="width: 4.29065%;"></col><col style="width: 62.3336%;"></col></colgroup><tbody><tr><td>[![Screenshot 2025-06-14 at 10.38.49 AM.png](https://wiki.arcadesupply.co/uploads/images/gallery/2025-06/scaled-1680-/kRn1tPgb4yAUO0oa-screenshot-2025-06-14-at-10-38-49-am.png)](https://wiki.arcadesupply.co/uploads/images/gallery/2025-06/kRn1tPgb4yAUO0oa-screenshot-2025-06-14-at-10-38-49-am.png)

</td><td>  
</td><td><table border="1" style="border-collapse: collapse; width: 100.178%;"><colgroup><col style="width: 50.0891%;"></col><col style="width: 50.0891%;"></col></colgroup><tbody><tr><td style="height: 29.8px;">**Capacitor**</td><td style="height: 29.8px;">**Location**</td></tr><tr><td style="height: 29.8px;">1uF 50v</td><td style="height: 29.8px;">C29</td></tr><tr><td style="height: 29.8px;">100uF 25v</td><td style="height: 29.8px;">C23</td></tr><tr><td style="height: 29.8px;">100uF 10v</td><td style="height: 29.8px;">C25</td></tr><tr><td style="height: 29.8px;">10uF 16v</td><td style="height: 29.8px;">C36</td></tr><tr><td>1uF 50v </td><td>C37</td></tr><tr><td>2200uF 25v</td><td>C21</td></tr></tbody></table>

**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.

</td></tr></tbody></table>

###