NES Top Loader AV Mod Installation

NES Top Loader AV Mod Installation

Skill Level: Beginner/intermediate. Can use a soldering iron and solder to medium sized points. Can remove through hole components easily.

Tools Needed

4.5mm game bit

Philips screwdriver

Pliers (needle nose preferable)

Soldering Iron


Wire (28-30 AWG preferred)

Drill with bits (1/16th in.( or close) and 1/4 in. bits)

Exacto knife or similar tool

Optional: Stepper drill bits, angled wire cutters or desoldering gun.


Step 1: Turn the system over and remove the four screws with your 4.5mm game bit.

Screw Locations

Step 2: Remove the screws attaching the flashing and motherboard to the case.


PART 2: Preparing the motherboard

Step 1: Locate and remove component R3 as circled in the picture below. If you have angled clippers you can simply cut the part off, and if you have a desoldering gun then you already know what to do. If you just have a soldering iron, heat up the solder points and use a small screwdriver to pry the part out of the board or use pliers to pull it one solder point at a time. 

Step 2: Use an exacto knife or similar tool to cut the small trace running underneath the resistor that you just removed.


PART 3: Installing the mod board

Step 1: Attach wires from the av mod board to the matching points indicated in the following picture. You'll also solder the ground wire for the av jacks to the indicated ground (GND) point.



Step 3: Finally attach a wire from VID point on the av mod to the point in this picture.

PART 4: Installing the AV Jacks

Step 1: Remove the Nintendo sticker and stick the included RCA jack template sticker to the back of your console. It will line up in the indentation where the old sticker was. Be sure to put the side with more blank space to the right for proper alignment.


Step 2Use your small drill bit to drill through the center of each circle. Once that is finished use the 1/4 in. bit to drill out the center of each circle. Remove the sticker.

Step 3: Install the jacks. Unscrew the nut, spring washer and ground loop from the jacks, and put the jacks through the holes (standard is yellow first, then white, then red). Then install the remaining parts for each jack in the following order, spring washer, then ground loop, then nut. Tighten the nuts while ensuring that the solder cup part of each jack is facing up (so that it will be easy to fill with solder) and that each ground loop is pointing towards you so that they will be easy to solder to.

Step 4: Solder a wire from the COMP pad on the AV mod board to the solder cup on the yellow jack. Solder wires from AUDL  and AUDR to the solder cup of the white and red RCA jacks, one wire per jack. Attach a wire to the ground loops of each jack and solder it to the GND point where you attached the GND from the mod board earlier.


Adhere the mod board to the pcb, we suggest fitting it right between the VCC and GND points. Put the flashing in the bottom shell of the system followed by the motherboard and the top flashing. Screw the parts together using the screws you removed earlier. Assemble the top half of the case. We find it easiest to line up the back with the rca jacks and slightly pivot the case so it all fits together. Make sure that the power switch is lined up correctly with the switch on the motherboard. Screw the case together using the 4 4.5mm game bit screws.