The Entertain Boy worklog FINISHED

[Bino Gas]

I started this project almost a year ago. Original worklog is available here: http://forums.benheck.com/viewtopic.php?f=2&t=32623. I decided to resume work, so now I'll maintain a WIP thread on both forums. New name:

Anyway, I did get this portable to work a few months ago, but I wasn't satisfied with the sloppy wiring. I gutted the case, and started fresh. Here is my cut-down PSone screen. It works, too.

I'll probably include stereo sound now, and I'm entertaining (pun intended) the idea of dropping in a Playchoice ppu for rgb video. More pics to come after I get another NES.

 

[zeturi]

Re: The Entertain Boy worklog

Nice curtting job. And definitely, great portable choice. I love this system to death. It's right up there with the psone for me.

 

[J.D]

Re: The Entertain Boy worklog

You're doing the stereo mod? Coolio.

Also, include RGB and I will love you.

 

[Bino Gas]

Re: The Entertain Boy worklog

Also, include RGB and I will love you.

You're certainly no stranger to love, J.D.
I'm doubting that I'll include RGB now because I can't find anything with the RP2C03 PPU for a worthwhile price. Also, eBay doesn't have as much arcade stuff listed as I thought it would. I think I'll just go with composite video, and maybe I'll RGB mod it some other time.

 

[J.D]

Re: The Entertain Boy worklog

Look on craigslist.

 

[Bino Gas]

Re: The Entertain Boy worklog

Update time! Installed the screen yesterday. I'm going to try to used screw posts as much as possible in this portable. Here the screw posts from the PSone screen are holding the screen in:

Front

Back

It took forever to make the holes for headphones, charge, and wall power because I used a hand drill and filed the holes to size.

Low-battery indicator circuit:

Audio amp:

My plan to incorporate stereo sound involves separating the 2 signals, feeding one through the system's audio amp, and feeding the other through the identical amp seen above. The chip used is a 74hcu04 hex inverter salvaged from a broken NES. Here is a schematic by Kevin Horton of the path of audio in the NES (I had to redraw it because his site no longer exists):

 

[Bino Gas]

Re: The Entertain Boy worklog

I installed the low-battery indicator circuit. The led on the left is green and the one on the right is red.

 

[Bino Gas]

Re: The Entertain Boy worklog

I installed the controls and wired them up. Next on my list is cart slot relocation. Stay tuned.

With flash:

Without flash:

 

[BoFoSho]

Re: The Entertain Boy worklog

Looks entertaining.
It sure entertains my eyes.
Fantastic work.
I have a couple nes mobo if you are looking for one.

 

[Bino Gas]

Re: The Entertain Boy worklog

Thanks, Bo. I got an nes last weekend. Maybe I'll finish the wiring this weekend.

 

[TheNineRings]

Re: The Entertain Boy worklog

You should use tri-wing screws on it.

 

[Bino Gas]

Re: The Entertain Boy worklog

I relocated the cart slot yesterday, all 72 pins. That was not fun. The new slot is a card-edge connector from Newark (the one Vomitsaw found a while ago).

Pics:

Also, Kevin Horton's site is back up, so here the original schematic that he drew:

 

[Bino Gas]

Re: The Entertain Boy worklog

Well, I finished it. No batteries yet.
Unfortunately, my power supply crapped out, so I'm making a new one. Pics and a video later today.

 

[Bino Gas]

Everything is in working order. Here's the finished thread: viewtopic.php?f=3&t=3498