Archive for the ‘Sega’ Category

Sega Master System 1 switchless mod

Montag, Oktober 25th, 2010

Today I have to make a switchless mod for the good old Mastersystem in its original form.

No problem for me, after changing sebs code for Mastersystems few months ago.

After opening you have to go under the mainboard and cut 3 wires of the mainboard

master_backsite_layout_cutting_web

The parts site is holding the pic as usual

I am using the same code I done for the mastersytem2

master_1_parts_site_wiring_web

You have to remove the original 5mm LED and replace it with a RGB-Led with common plus like this one.

master_1_rgb_led_wiring_web

The resistors of the LED: 220Ohm. You can use higher ones, if the light is to bright.

Usage:

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

If you press the reset button longer the Led toggles between red and green.

If you let the button go at red the Mastersystem is set to 60Hz

If you let the button go at green the Mastersystem is set to 50Hz

Video:

Sega Mega Drive 1 switchles mod

Montag, Juni 14th, 2010

Today I got a PAL SMD1 Console. I tried sebs code as several times before to make a switchless mod.

You have to cut 3 circuits and need a 3mm Duo-Led for displaying.

smd1_switchless

Saturn switchless Mod VA0 PAL Mainboard

Mittwoch, April 28th, 2010

today I done the switchless mod for a PAL Mainboard.
Its the third different mainboard i looked at.

Mainboard PC BD SATURN MAIN VA0 Pal

sat_VA0_pal_1

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

cut the three circuits at Jumper JP7,JP10,JP12 for Language preparation

sat_VA0_pal_3

remove Jumper 2 (50Hz, 60Hz switching)

Wire PIC like shown at the picture:

sat_VA0_pal_2

For make the Reset Button work, you have to cut this circuit on the parts site of the mainboard:

sat_VA0_pal_4

Remove the LED PCB. It holds a 5x2mm square LED.

Replace it by a Duo LED and use some glue

Left red wire, middle GROUND (take it from the mainboard), right green wire.

sat_VA0_pal_5

sat_VA0_pal_6

Sega Master System II switchless Mod

Dienstag, April 27th, 2010

Today I modded a Sega Master System II.

You can change between 50/60Hz via the “Pause” Button.

The normal function of the pause is still working if you press it a very short time.

For working with sebs switchless mod, I done some modification on the code.

Here you can download the code:  switchless MasterSystem Code

a) make use of common anode RGB-LEDs for brighter Leds

b) reduce the code to two modes 50 and 60Hz.

Here you can see the solder site of the SMS2 Unit. You have to cut the Pause Button Signal:

sms_2

for making 50 and 60 Hz switching work you have to cut Pin 57 of

Sega IC 315-5246 (64 Pins):

sms2_3

Here you can see the wiring of the PIC16F630

sms2_4

For Displaying the LED I put it under the Pause Button.

From the top its not so bright but it works:

sms2_1

english video

german Video

Worldwide First Sega CD-X, REAL multi-mega switchless mod

Freitag, April 16th, 2010

This mod has been a long time in my head and I am happy to make it become real now :-)

The Sega CD-X is a little great unit, you can take with you as a CD-Walkman and it includes a complete Sega Genesis and a Sega CD in one unit.

After done the previous modding of Genesis 2 in combination with Sega CD 2 and 32X I done the same for this little beauty.

We can offer you the complete modding, at our website: www.wolfsoft.de

mm1

The shielding carries GND for the Mainboard. It will not work without it. For testing you can use a wire like the following pictures:

mm2

The battery have to be replaced its a solder Version of ML 2016 (3V) Li-AL Rechargeable Batterie.
Modell: ML2016-LF (Maxell)

http://datasheet.octopart.com/ML-2016-T25-Maxell-datasheet-558430.pdf

mm17

After removing the shielding you can find the jumper for 50/60Hz and the Country Settings

The default for a europe unit JP3 is set and JP2. You will have to remove any jumper you will find

at JP1, JP2, JP3, JP4.

mm3

Some more Info about the Jumper Area:

The circuits are going straight to the big SEGA 315-5660 IC

Pin 46 at Sega 315-5560 -> 50/60Hz switching. GND= 50Hz and 5V = 60Hz (JP3, JP4)

Pin 107 at Sega 315-5560 -> Country settings. GND= jap. and 5V = engl. (JP1, JP2)

Now its time to make use of a PIC 16F630 with sebs Code.

red wire 5V, black wire GND, pink wire 50/60Hz, purple wire country setting

mm4

Now we have to take the 2nd Mainboard (CD-Area). We have to mod the Display with two Duo Leds. First you have to remove the shielding.

mm5

Desolder the Display Unit.

mm6

mm7

  • Remove the two original LEDs.
  • Use some tape and double sided adhesive tape
  • The Center of the 3 pins of the DUO-LED is GND. Solder both to the GND Area of the mainbord
    (I used some fiberglas pencil)
  • make space for the legs of the LED at the PVC of the Disyplay

mm8

use four 220Ohm resistors and head shrink tube to avoide short curcuit.

mm9

Here you can see the routing of the 4 wires bounded with some tape.

mm10

Now it is time to get the “power” over the reset button. It is placed on the CD-Mainboard. Lucky the Signal is going through the 36 Pin Connector on the left site.

mm11

You will have to cut pin 11 at the outersite of the connector.

PIC Pin 13 grey is connected to the upper site. Its for the Reset switch

PIC Pin 11 white is connected to the lower site (Reset Sega 315-5660 IC Pin 78)

mm12

Rom Part – for playing Cds around the world

You are in need of a Eprom (27c2004) and burn all 3 bios Version into it. The usa, japanese and pal Version. You can select the different Bios Version via A16 (Pin 38) and A17 (Pin 39) of the Eprom.
The order is: USA-> JPN -> EUR.

You can do it by yourself. Take the CD-Bios Versions and make a byteswap each of them.

The concat the 3 Files via Windows Commandline copy

copy /B usa.bin + pal.bin + jpn.bin switchless.bin

The final goal is to get 2 wires from the 16F630 PIC to the Eprom.
Here we make use of 2 wires from the Sega Expansionport.

PIC 8 /Eprom 38

PIC 10 /Eprom 39

EUR

0

1

JPN

1

0

USA

0

0

First you have to disable to onboard bios. Desolder PIN 2 (CS) of the onboard ROM and lift the pin up. Solder a red wire from the lifted Pin 2 of the ROM to Pin 40 (5V) of the ROM.

mm13

Now its time to prepare 38 wires each 5-6 cm and do some soldering ;-)

mm14

Wire blue and yellow as you see on the picture. This to wires will do the Bios selection:

mm19

red and green coming from the 5mm Duo-Leds. Solder both parallel to PIN 5,6 of the PIC

mm20

Adding Sega 32X Support (optional)

The pink wire to the AV-Port is optional, only necassary for 32X support

You will have to cut the red marked circuit and solder a pink wire to Pin 6 of the AV Port

We will disable the Mono-Audio for this function. This will not be a problem, because STEREO-Audio is still working. (Who needs mono ?)

On the right picture you can see the right routing for the wire:

mm18

To prevent short circuits use tape on the left site of the CD-X.
Here you can see the routing of the LED wires.

Make sure no red/green wire is nearby or inbetween of the 36 PIN connector between the two mainboards:

mm21

german:

you can see the different colors:

http://www.youtube.com/watch?v=gaQCTsi3c6c

Sega Genesis 2 ultimative switchless mod

Donnerstag, April 8th, 2010

Inspired from petes fabulous site www.mmmonkey.co.uk and his switchless mods,

I want to make the ultimative Sega Genesis 2 switchless MOD including 32X and Sega CD2.

In the beginning we have to mod the Genesis 2 with the switchless mod, like I done before.

(Thanks to SEB for the great PIC Code).

Difference between standard Sega Genesis switchless mod

For making a 32X working you are in need of the pink wire. This signal is needed in the 32X.

We can make use of the A/V connector cable between the Genesis 2 and the 32X. The Mono Audio Signal is not in use, so we can cut the original Mono signal at the Genesis 2 A/V connector and the 32X A/V connector.

Here you will see the Sega Genesis 2 switchlees mod including the 3 more wires (yellow, blue, and pink).

The Pink is needed for the 32x.

Blue and yellow is needed if you want to make a Sega CD working too.

For 32X support add a 2nd pink wire to Pin 12 of the PIC.

smd2_1

At the solder site you have to cut the cirquit path to Pin 6 of the A/V Port and solder the pink wire to Pin 6 of the A/V Port.

For Sega CD support you have to cut Pin A01 (yellow wire) and Pin A30 (blue wire) of the Genesis Expansionsport and solder the 2 wires to the PIC Pin 10 blue and PIC Pin 8 yellow.

Backsite of the Genesis 2:

smd2_2

Adding 32X support

First you have to open the 32X and remove the shielding.
The only protection of the 32X is the 50/60Hz settings. You will find it at the right site of the mainboard IC12 SEGA 315-5788.

32_x_1

You will find R43, if its a PAL 32X (Pin 32 to GND) -> 50Hz
You will find R42, if its a NTSC 32X (Pin 32 to 5V) -> 60Hz

Remove the Resistor

32_x_2

Sega Genesis 2 A/V Pinout

Pin

Description

1

Blue

2

+5V DC

3

Green

4

Composite Video

5

Sync

6

Audio Mono

7

Red

8

Audio Stereo L

9

Audio Stereo R

minidinspec9f

On the solder site you will have to Cut the cirquit path to Pin 6 of the A/V Port.

32_x_3

Solder one pink wire from AV Out Pin 6 (solder Site) to Pin 32 of IC12 (component site)

32_x_4

32_x_5

Adding Sega CD 2 support

You are in need of a Eprom (27c2004) and burn all 3 bios Version into it. The usa, japanese and pal Version. You can select the different Bios Version via A16 (Pin 38) and A17 (Pin 39) of the Eprom.
The order is: USA-> JPN -> EUR.

You can do it by yourself. Take the CD-Bios Versions and make a byteswap each of them.

The concat the 3 Files via Windows Commandline copy

copy /B usa.bin + pal.bin + jpn.bin switchless.bin

The final goal is to get 2 wires from the 16F630 PIC to the Eprom.
Here we make use of 2 wires from the Sega Expansionport.

Pin8 yellow 16F630->Exp Port Pin A01@Genesis 2->Exp. Port Pin A30@SegaCD2->Pin 38Eprom

Pin 10 blue 16F630->Exp Port Pin A30@Genesis 2->Exp. Port Pin A30@SegaCD2->Pin 39Eprom

Pin A01 and A30 of the Expansionsport carrying GND. There are many ground Signals at the Expansionsport. So we can cut these two of and make use of the free Pins for the Bios select.

PIC 8 /Eprom 38

PIC 10 /Eprom 39

EUR

0

1

JPN

1

0

USA

0

0

First you have to remove the original Bios:

segacd_1

cut the 2 wires left and right (A30, A01)

segacd_2

You will have to pullup Pin 38 and Pin 39 of the Eprom and wire blue and yellow like the following picture

segacd_3

Here you can see the complete eprom attached

segacd_4

Look here for a video showing how the modification is working (german language)

http://www.youtube.com/watch?v=PYxM5u4DBis

english

http://www.youtube.com/watch?v=eQVGKSsld1k

Sega Saturn switchless MOD Pal smaller mainbaord

Montag, März 15th, 2010

My second german Saturn for switchless MOD was not the same as the first one.

This one got 2 PCBs inside. A smaller Main PCB and a separate Controller Port PCB.

The Mainboard is called: 837-11892-01 PAL.

layout_0_1

layout_1

Here you can find the Mainboard Revision on the TOP Side of the Board

layout_2

For correct working of the 50/60Hz you have to desolder Pin 1 and pull up pin 1 of IC20.

Then wire it to GND.

layout_4

Backsite Mainboard.You need to cut the jumper at JP7 (remove the circuit)

layout_3

Frontsite of the Mainboard (LED Resistors 220Ohm) PIC 16F630 cut the two red marked circuit pathes between JP12 and JP 10

layout_5

Separate Controller PCB (cut the red marked circuit)

wire colors (upper site grey at the RESET Button, downsite white)

layout_6

DUO-LED soldering an position at the separate Controller PCB

layout_7

Some more pictures

layout_8

layout_10

layout_9

Sega Saturn switchless MOD Pal bigger mainboard

Dienstag, Februar 23rd, 2010

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

sat_1

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

sat_3

remove Jumper 2 (50Hz, 60Hz switching)

sat_4

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

sat_10

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

sat_9

Here you can see the wiring of the PIC

sat_7

some zooming pictures

sat_5

sat_6

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

sat_11

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)

sat_2

sat_31

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:

http://www.youtube.com/watch?v=hf8kXiFLF6M

Sega Genesis 3 Pinout for 50/60Hz and Language

Donnerstag, Februar 18th, 2010

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

genesis3design

After opening

genesis3komplettpcb

here you can see the Sega IC 315-6123

genesis3segaic

here you can see the “default” US jumper settings

genesis3jumperusaconfig

After removing the jumpers:

genesis3jumper

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

Sega Mega Drive 2 Switchless MOD

Donnerstag, Februar 18th, 2010

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

smd2_switchless_cut_50,60hz

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

smd2_switchless_cut_jap,engl,-reset

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)

smd2_switchless_pic

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

smd2_switchless_pic_led

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

cover_1

cover_2

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