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Sega Saturn switchless MOD Pal bigger mainboard

Inspired of the great site mmmonkey and sebs great code for the Sega Saturn, I will use the PIC 16F630 in a PAL Sega Saturn.

You are in need of a PIC 16F630 with sebs code, some wire, two resistors 220Ohm and a DUAL Led red/Green.

It is a PC BD SATURN MAIN VA9 Board Pal Mainboard.

If you can’t do it yourself, we can take care of your Sega Saturn

At the solder Side you will find some Jumper from JP 6 to JP 13

Remove the three marked Jumper JP7,JP10,JP12 for Language preparation

remove Jumper 2 (50Hz, 60Hz switching)

to make switching to 60Hz work, you need to desolder and pull up PIN 1 of IC20 and wire it to GND

cut the following circuit path on the Parts Site at the reset switch

Here you can see the wiring of the PIC

some zooming pictures

Here you can see the 5mm DUO Led green/red and the Reset Wiring

Use this way for the wires, so you didn’t cut some during the reassembling

Some background Information

The Language Identifikation is working with IC9: 315-5744 A05 Pin 5 to 8

Pin 5 -> JP 6 / JP 7

Pin 6 -> JP 8 / JP 9

Pin 7 -> JP 10 / JP 11

Pin 8 -> JP 12 / JP 13

(If Jumper 6,8,10,12 is set PIN 5,6,7,8 is set to 5V)

(If Jumper 7,9,11,13 is set, PIN 5,6,7,8 is set to GND)

PIC Pinout / Function

Region	5 (red Led)	6 (gn Led)	Pin8 (JP12)	Pin9 (JP10)	Pin10 (JP6)	12 (VidMode)
EUR	GND	+5V	GND	+5V	+5V	GND
JAPAN	+5V	GND	+5V	GND	GND	+5V
USA	+5V	+5V	GND	+5V	GND	+5V

You can change the Modes via pressing the reset Button of the Saturn
If you press the reset button very short -> The Sega Console will do a reset

If you press the reset button around one second -> The console swaps between 50Hz and 60Hz.

If you hold the reset button for more than one second -> The console will toogle:

Led red Japan Mode (think of the red dot in the japanese flag)

Led orange USA Mode

Led green Europe Mode

The usage of the mod in a video:

23. Februar 2010

Sega Genesis 3 Pinout for 50/60Hz and Language

I found some pictures from the year 2000, where I modded a Genesis 3 VideoGame.

Here you can see the pictures of the Genesis 3

After opening

here you can see the Sega IC 315-6123

here you can see the „default“ US jumper settings

After removing the jumpers:

Technical Infos:

Pin 197: (USA/JAPAN)

If you shortcut R22 = 5V to Pin 197 -> Europe-/US-Mode
If you shortcut R24 = GND to Pin 197 -> Japan-Mode

Pin 200: (50/60Hz)

If you shortcut R25 = GND to Pin 200 -> 50Hz
If you shortcut R22 = 5V to Pin 200 -> 60Hz

Have FUN!

I will do a switchless MOD, if I get the next Genesis 3 for Modding

18. Februar 2010
Sega Mega Drive 2 Switchless MOD

Inspired of the great site mmmonkey and sebs great code for the Sega Saturn, I will use the PIC 16F630 in a Sega Mega Drive 2 /Genesis 2.

You are in need of a PIC 16F630 with sebs code, some wire, two resistors 220Ohm and a DUAL Led red/Green.

If you can’t do it yourself, we can take care of your Mega Drive 2 / Genesis 2

At the Mainboard you have to cut 3 circuit board tracks.

Cut the fist circuit path from pin 46 and solder the pink wire at the right site of the cut.

Pin 46 at the SMD2 works for 50/60Hz switching. GND= 50Hz and 5V = 60Hz

Cut the second cirquit path to Pin 107 at the marked place and solder the purple wire on the upper Side.

Pin 107 selecting japanese Mode (GND) or english Mode (5V).

GND at Pin 78 will Reset the Sega Console.

So you have to cut the 3^rd cirquit path to Pin 78, see marked place and solder a white wire to the left site of the cutted path.

Here you can see the complete wiring including PIC

Pin 01 Red (5V)

Pin 05 Resistor 220Ohm -> red site of the LED

Pin 05 Resistor 220Ohm -> green site of the LED

Pin 09 purple (jap./engl switching)

Pin 11 white (Reset Signal of the SMD)

Pin 12 pink (50/60Hz switching)

Pin 13 grey (Button Signal)

Pin 14 black (GND)

Now you have to remove LED1 and replace it with the Duo LED 5mm

After this you have to do some mechanics. Rasp the white pvc until the 5mm LED is fitting.

Have Fun

Usage of Sebs CODE:

You can change the Modes via pressing the reset Button of the SMD2.
If you press the reset button very short -> The Sega Console will do a reset

If you press the reset button around one second -> The console swaps between 50Hz and 60Hz.

If you hold the reset button for more than one second -> The console will toogle:

Led red Japan Mode (think of the red dot in the japanese flag)

Led orange USA Mode

Led green Europe Mode

Here you can see a little video, how to use the switchless mod.

Sorry for my english, its my first public english speaking 😉

http://www.youtube.com/watch?v=8N3OnxkShcQ

18. Februar 2010
Balltop with 5mm RGB-Led

I used a 5mm LED for RGB-Balltop of Sanwa Stick.

Advantage: more powerfull as the PLCC4 or SMD 605 Led

balltop, led, shaft

you have to remove the ring of the led

after removing the ring

difference with ring and without

cutted legs

wires black is 5V, red, green and blue needs GND to lite

including shrinking

moved into shaft

frosting the led for diffusing the light

frosting led

red

green

blue

all leds on -> white

15. Dezember 2009
Atari Paddle repair/cleaning

One of my favorite console is the ATARI 2600 and the game Warlords. It needs paddles but after 20years the paddles jitter.

It is not new and not hard to do, but after cleaning you will have a lot of fun with games like Kaboom, Super Breakout, Warlords…

http://www.atariguide.com/help/care.htm
If you want to use the paddles with a windows PC with retroadapter. The paddle adapter will be available in 1-2 weeks.

Retroadapter

If you can’t do it yourself, we can help

You have to open it and the poti inside . After cleaning with isopropyl alcohol and using contact oil, the paddles will run like at the first day 🙂

good old atari 2600 paddles

opening the clamps with a screwdriver

use isopropl alcohol for cleaning

a teethbrush works good

15. Dezember 2009

Sega GameGear Audio & Display Fix

I received a GameGear without sound and the contrast of the handheld was terrible.

So I used a searchmachine and found the following sites:

AudioFix

For Display troube

If you don’t want to make it yourself, we can take care of your gamegear

Part #1 Audio Fix

In most cases it it this capacitor 47uF 6.3V (C7)
Please change 47uF 6.3V (C5) too, because if you make use of a headphone.

If you can’t find it with 6.3V you can make use of one with higher voltage.

Audio Amplifier Board

DESIGNATOR	VALUE
C1 C2 C3 C5 C7	100μ 6.3V 100μ 6.3V 100μ 6.3V 47μ 4V 47μ 4V

Part# 2 Display Fix

The display was dark, the contrast wheel didn’t help, so I changed every elko on the mainboard. After this the picture was brighter and the contrast wheel works good again.

The original capacitors have some clue under it. Desolder one side of a capacitor and move it a litte bit. Then you can desolder the other site.

when soldering the new ones, look for space in the marked area

when soldering make space at the marked areas. It is needed when closing the gamegear.

Mainboard

ONE ASIC GG	TWO ASIC GG	VALUE
C68 C43 C45 C55 C54 C48 C49 C1 C4 C14 C48 C11	C31 C49 C35 C45 C44 C38 C39 C1 C3 C14 C48 –	100μ 6.3V 22μ 6.3V 4.7μ 35V 0.47μ 50V 0.47μ 50V 68μ 6.3V 100μ 4V 33μ 6.3V 10μ 6.3V 10μ 6.3V 10μ 6.3V 10μ 6.3V

Update: Bad Contrast Fix for other GameGear Revision

Here you can see all capacitors to be replaced.

Responseable for the bac contrast are: C54,C55,C48,C49 (blue marked Area). But its better to replace all to be sure.

2. Dezember 2009

NeoGeo AES RGB-Fix

The newer Revision 5 or 6 of Neo Geo have bad RGB-Output Signals. It looks like a grid layed over the picture.
We can take care of the RGB-Fix if you are not able to do it by yourself

left site: verticallines, right site: OK!

To remove the vertical lines you can do the RGB bypass I found here.

JammaNation X

mmmonkey

NeoGeo Forum

First you have a look into your neogeo to see if you have one of the „bad“ Revisions.

use a flashlight to see the revision of your neogeo board

use a flashlight to see the number

This can help too

Here you can see the Layout Revision

Part #1

Removing Capacitors, Resistors and replaceing with 3 75Ohm Resistors

Remove the 4 capacitors and 3 resistors

You have to remove the four marked capacitors (red,green,blue,yellow) and the 3 Resistors (red,green,blue).

After this it looks like this

removed capacitors and resistors

Now you have to reconnect the rgb Signal via 75 Ohm Resistors.
I am using some shrinking tube look here.
The Sync Signal (yellow) doesn’t need 75 Ohm you can wire it directly

3 resistors and sync wire

Part#2

directly at the other side of the mainboard you find the crystal (the cause of the problem)

you have to cut of the rgb-signal in this area, so the crystal can’t sending bad signals into the rgb-wires.

cuting rgb signal

You have to cut both sites to be sure.

cutting done

cutting done

After further reading the links above, it seems to be allright if you only do Part#2.
When I will do the next neogeo I will check it and give this site an update, because I done first Part #1 and the picture was quite better. After doing Part#2 I didn’t saw any better picture.

Part #3 50/60 Hz

If you have a Pal Revision all games running at 50Hz you have to cut of the connector between the pal jumper.

The following picture is showing a NTSC Console.

Here you can see a NTSC Console in 60Hz Mode the 0 Ohm Resitor gives GND to Pin64

Pin 64 of the nearby chip LSPC2-A2 9305 E27 sets 50 or 60Hz.

GND at Pin 64 -> 60Hz
5V at Pin 64 -> 50Hz

1. Dezember 2009

easy mod of a neogeo Stick 2

Hi Folks,

we have some NeoGeo Sticks 2 for PS3 in stock.
But it works not @ the good old neogeo. So I make an easy hack for the neo geo.
After the mod it works on PC, PS3, Neo Geo, NeoGeo CD, MAK and Clones. (Attention do not connect both PS3 and NeoGeo at the same time).
You can buy it ready for use if you want or make it yourself.

I make use of 6 Buttons at the neogeo connector.

you have to remove 3 of the 4 rubbers.

zomed view, the pins for direction and select,start are marked on the mainboard — zoomed view, the pins for direction and select,start are marked on the mainboard

cutting pvc to get both cable out of the neogeostick

Here you can see the NeoGeo Connector:

1	GND	brown
2	Feuer E (5)	red
3	Select (Coin)	orange
4	Feuer D (4)	pink
5	Feuer B (2)	yellow
6	Rechts	darkgreen
7	Unten	lightgreen
8	5 V	darkblue
9	N.C.	lightblue
10	Feuer F (6)	purple
11	Start	grey
12	Feuer C (3)	white
13	Feuer A (1)	black
14	Links	brown/white
15	Oben	black/white

If you didn’t want to see 2 cables out of the neogeostick you can make use of a Sub-D 15 connector and a separate cable.

30. November 2009

upcb Amiga Cable

Hi Folks,

today it’s time to make amiga upcb working.

In the original Document of neogeo.h the +5V at older Videogame Systems are defined at Pin 5 of the SUB-D 9 pin Connector, but for amiga it’s wrong: Here we can find it at Pin 7 of SUB-D 9 pin Connector.

Amiga Pinout

Amiga

Pin Description

1 UP (brown)
2 Down (red)
3 Left (orange)
4 Right (yellow)
5 (green)
6 Button 1 (blue)
7 +5V (purple)
8 GND (grey)
9 Button 2 (black)

Sub D 15

Pin Description

1 8 (GND) grey

2

3

4 9 Button 2 (black)

5 6 Button 1 (blue)

6 4 Right (yellow)

7 2 Down (red)

8 5 (VCC 5V) (purple)

9 Low

10

11

12

13

14 3 (Left) orange
15 1 (Up) brown

Buttons1

Buttons

If no Buttons are working. Try to press the 3 grey Buttons at powerup or
Press the three green Buttons at powerup

24. November 2009
Pinbody Part #3

The frontsite needs most time because of the holes, frontdoor.

The buttons done with two different hole sizes, because of the authentik look deeper in the wood.

holes, holes, holes

mounted front

insite view

leaf switch

original PB Leafs for the wright feeling

leg holes

first complete mounting

On Saturday 14. of November, I drived to the DADDELParty @ Luigi and Capt. Kirk (Neustadt a. Weinstr.)
The first viewing and playing was great. Please posts comments

First public test

16. November 2009