hey I have an av famicom that I added a nice rgb ppu to. Everything works great and next I'm going to build an amp to boost the signal strength. I was just wondering where on the pcb I can get +5v from
*edit* oh wait there's a +5v line on the av connector lol might not be working since the system isn't designed for rgb
Drakon wrote:
hey I have an av famicom that I added a nice rgb ppu to.
Nice job...but I have to ask...why didnt you go for a cheaper normal famicom?
Jeroen wrote:
Drakon wrote:
hey I have an av famicom that I added a nice rgb ppu to.
Nice job...but I have to ask...why didnt you go for a cheaper normal famicom?
thankyou. I went with the av famicom because it's a much nicer looking system. Also I already have a nes adapter so I can use it for both famicom/nes games.
Look for the 7805, right leg, anything soldered to the trace from it or the leg itself. Grab a multimeter and start hunting...
Pin 15 of the EXP port connector (on the side) is +5DVC.
Here is my own handy-dandy pinout reference sheet:
FC DA-15 NES 48-Pin DSub EXP
1 – Ground
2 - Sound Output
3 – IRQ
4 - Port #1 (D4) 4017R.4
5 - Port #1 (D3) 4017R.3
6 - Port #1 (D2) 4017R.2
7 - Port #1 (D1) 4017R.1
8 - Port #1 (D0) 4017R.0
9 - Port #1 CLK 4017R.E
10 - Out2 4016WR.2
11 - Out1 4016WR.1
12 - Out0 4016WR.0
13 - Port #0 (D1) 4016R.1
14 - Port #0 CLK 4016R.E
15 - +5VDC
ahhhh many thanks to everyone!
Every logic chip on the board has a pin where you can get +5V. It's everywhere
blargg wrote:
Every logic chip on the board has a pin where you can get +5V. It's everywhere
Right. This just gave a specific and easy to identify location for him. Additionally, there is a full Famicom schematic in the FAQ section: It's labeled in a misleading fashion, but it is there nonetheless.
I would avoid suggesting 7805 pins... one can accidently solder the wire to the 12V pin and mädzik smoke gets released ^^