Famicom AV mod

Before you start making this mod, why not consider buying
a ready-to-use MOD-KIT from my friend:

Video outputpin #21 of PPU
Audio outputpin #46 of Cartridge connector
Power +5Vpin# 3 of "7805" voltage regulator
Ground GNDpin# 2 of "7805" voltage regulator

Step 1:

Locate video output pin #21 on PPU
(you can also locate pins #20 and #40 for Step 5)

 

Step 2:

Locate pin #46 on cartridge connector

 

Step 3:

Locate power regulator labeled 7805 (near the power connector)

 

Step 4:

Make this:

Parts list:
1x PNP Transistor (5 - 15V)
1x 300 ohm resistor
1x 110 ohm resistor
1x 220 microFahrrad capacitor

For questions and answers please reffer to this topic on FamicomWorld forum:
http://www.famicomworld.com/forum/index.php?topic=4713

 

Step 5:

Reducing the bright vertical bars on screen:
put a capacitor (400 - 1000 μF) between +5V and GND of the PPU as shown
(mind the polarity !!!):
Do NOT desolder or isolate the PPU pins!!! Just solder right to them.

Alternative step 5:

Reducing the bright vertical bars on screen can also be done
by connecting a capacitor (47uF - 220uF) between pins #20 and #22 (RESET)
Thanks Da Bear!

 

The end

 

 

Famicom PCB model HVC-CPU-GPM-02:

Location of Audio and Video pins:

Location of "7805 voltage regulator":