Archive for the ‘Atari’ Category

One Power Supply to rule them all

Dienstag, November 21st, 2017

For testing old Computers you will need a lot of different power supplys with AC and DC Voltage.

I put them together and we got one to rule them all ;-)
Meanwell RT-65B and a 9V AC Power Supply

9V /2100mA
5V / 5,0A
12V / 2,8A
-12V /0,5A

So it works @:

  • Atari 8 Bit Computer like 600XL, 800XL, 1200XL, 800XE, 64XE, 130XE
  • Atari 8 Bit Computer like Atari 400, 800, Atari 810, Atari 1050
  • Commodore C64, C16, C64C
  • Commodore Amiga 500,500Plus, 600,1200
  • Commodore CD32, Commodore 1541 II
  • Neo Geo 5V Unit

power_one_to_rule_them_all (8)

power_one_to_rule_them_all (7)

power_one_to_rule_them_all (5)

power_one_to_rule_them_all (1)

power_one_to_rule_them_all (2)

power_one_to_rule_them_all (4)

Atari 600XL RAM Ugrade to 64MB

Donnerstag, August 10th, 2017

Its time to bring up this little beauty to the level of a Atari 800XL.

An easy mod, because all parts in a Atari 600XL are socket and you  only need to change 2 RAM Chips and do some wiring

Works with Pal and here shown NTSC Version

Remove U11 and U12 (was: TMS 4416-15NL 4bitx16k)

Replace with : MCM41464 AP10 (4bitx64k)
or : NEC D41464C-10 (4bitx64k)
OR : HMS50464P (4bitx64k)
or : any 4464 equialent (4bitx64k)

Wire Lifted DownSide R36 to Lifted U16 Pin 08

Wire Lifted U5 Pin 03 to U9 Pin 21 Dia Nearby

Wire Lifted U6 Pin 10 to U9 Pin 22 Dia nearby

a600_XL_RAM_Upgrade_1

 

Atari600XL_Ram_Upgrade_to_64MB

 

Atari 800 RGB Mod via Sophia

Donnerstag, Juli 13th, 2017

Atari 800 was my first computer after Sinclair ZX81 and its time to make the picture better. After checking the A/V Out it contains Video and S-Video in a good qualitiy. So i decided to replace the original DIN Connector and replace it with a DIN 13 like used in Atari 7800 french and Atari ST. I used some not needed pins from the Din 13 to put in Video and S-Video too. So its possible to use RGB-Output via a standard french Atari 7800 RGB Cable and with a special Cable made I can use Video and S-Video too via the same connector.

To put the DIN 13 in the right position i need some plastic and drilled holes downunder to make the Din connectors accessable

 

a800_sophia (5)

a800_sophia (6)

replaced DIN 5 to DIN13

a800_sophia (4)

downunder chaos

a800_sophia (2)

because of no space at the CPU Board I needed to move the Sophia Board to another place. I uses some ribbon extension like this

a800_sophia (1)

and here we go. In front you see incognito board too :-)

a800_sophia (7)

after finishing up it looks like this

a800_sophia (3)

Atari Jaguar “switchless” + Reset Addon + Multibios

Donnerstag, März 16th, 2017

 

I got a white “dental” case and its time to make the jaguar ready for 2017 ;-)

The title is something strange, but its comming from a Sega Saturn Mod years ago (the code is based on this). The Saturn reset button is used for change region and 50/60Hz.

Jaguar_RGB_Led_switchless

You will need:
-pic16f630
-button
-RGB-Led

I removed the RF-Unit to put my “standard” DIN Connector and for adding a button instead of the chanel selector. With the help of this tiny button you can select between 50/60Hz.

 

 

jag_complete

(Overview)

jag_50_60_zoom

(U25 Pin 11 sets the Console between 50 Hz (GND) and 60Hz (5V)
I used a US 60Hz Jaguar for modding, so you have only to solder this wire to Pin 11

Jaguar_R140_removed_60Hz
Attention If you use the PAL console you have to look downunder and remove a Resistor R140!

 

jag_reset_zoom

(The Reset Line you will find U9 Pin 13  (GND = reset)

 

I removed the original LED and put instead a RGB-Led.

I set red for 60Hz and green for 50Hz.

If you find blue better, no problemo. But red/gn are the real colors of the Jaguar used in their countrys.

jag_rgb_led_zoom

Usage:

Its like the switchless Mod for the Sega Saturn.

a) When you push the button for a moment. The Jaguar will do a reset

b) you push and hold the button. Now the Color of the LED will toogle between green and red. When you release the button

at red -> Jaguar Resets and starts with 60Hz
at green -> Jaguar Resets and starts with 50Hz

 

Jaguar_Din_Hole

(bigger hole for Din RGB-Connector)

 

Jaguar_RGB_Pinout

(RGB-Pinout)

Jaguar_Din_

(Reset button)

Jaguar_Reset_Din

(overview)

Jaguar_Reset_outside

Jaguar_Final_Back

Jaguar_Final_dental

Jaguar_green_led

Jaguar_red_led

 

scart_PC-Engine_French_Layout_2016

(my standard Din Pinout, based on modified 5 Pin Din PC-Engine + 3 more for RGB)

 

Its time to add a 2nd Bios to the Jaguar.

You have to remove the original Jaguar Bios and use a DIP 32 socket.

With the help of a 29f040 FlashRom I added jagbios and BJL1.06

You need to concat the bios files:
Use: windows command: copy /B jagbios.bin + jagbios.bin + jagbios.bin + BJL106.bin 4in1bios.bin

and burn 4in1bios.bin to the 29F040 FlashRom

 

29f040_zoom

 

29f040_wiring_

 

jaguar_complete

(overview)

jag_complete_green_bjlbios

jag_bjl_bootscreen

jaguar_red_complete

jaguar_jag_rom

Update 23.6.2017

I put a switch beneath the Power Switch to make it like a “real switchless” mod.

So the Power switch can pressed a litte to:

  • change 50/60
  • Reset
  • switch between original Bios and BJL

OR

Press it more deep to Power Off and Power ON like normal

I used a little switch with a ball at the end and put it inside like this:

jag_switchless_1

standard

jag_switchless_3

with button pressed a “little”

jag_switchless_4

 

Youtube Video

(Sorry about wrong JBL speaking its BJL Loader ;-)

Atari 2600 gets internal UWRC wireless Receiver

Samstag, Juli 30th, 2016

I used a old revision (rev1) of micros neogeo Receiver and put it inside of the A2600 6 swich.

I was modified before with A2600RGB from tim worthington and I used some more switches like select, reset from the Atari and extra button from tim worthingstons 2600RGB PCB

UWRC

Button A = normal FireButton 1 of Atari (Pin 6)

Button B = Firebutton 2 (Pin 9)

Select  =    Extra Button A2600RGB PCB

Start  = Start of Atari 2600

Button C= Select of Atari 2600

Button D = Palette switch A2600RGB PCB

 

All normal Controllers will work after mod too. Like paddle, racing, joystick.

 

IMG_8941

(diodes, needed to make special functions from A2600RGB working, R=10k as pullup)

IMG_8944

 

IMG_8950

RX Led to show it though the power switch hole upperside red led down side gn led

 

UWRC vs remote control yesterday

Montag, Juli 25th, 2016

here you can see the grandpa of remote control ;-)

a little comparsion between yesterdays remote and state of the art :-)))

uwrc_yesterday_vs_today (7)uwrc_yesterday_vs_today (6)uwrc_yesterday_vs_today (5)uwrc_yesterday_vs_today (4)uwrc_yesterday_vs_today (3)uwrc_yesterday_vs_today (2)uwrc_yesterday_vs_today (1)

UWRC Competition Pro Mini

Donnerstag, Juli 21st, 2016

I bought some Competition Pro Mini and most of them have brocken microswitches :-(

I found some replacements here:

http://www.voelkner.de/products/43525/Microschalter-Ultraminiatur-5A-250V-Sim.-R.-Hebel.html

It was very tricky to add the Universal TX PCB in this tiny stick but after all it looks great :-)
After removing original parts I add a Led and two more micro switches for Select and Start.

The chrome switch to swap between Layout Select/Start and Button X, Button Y

I must move the electronic of the LiPo to put it between the two fire Buttons

IMG_8039 IMG_8038

uwrc_tx_1 mini_1 IMG_8537 IMG_8541 (Large) IMG_8550 IMG_8547 IMG_8559 (Large) IMG_8566

IMG_8534 IMG_8544

Atari 2600 S-Video Mod PAL 6-switch Modell

Freitag, August 28th, 2015

Putting the good old Atari 2600 to a proper view, needs some help of a little s-video pcb.

1_pcb

I done the mod and show some pictures comparing video Signal and S-video. I will prefer S-video and better RGB see other post.

Opening the 2600 and go to the TIA chip. Here you have to solder some wires

2_most_tias

upper side

3_tia_9_13

(lift pin 9 and 13 and solder the two wires directly to the TIA Chip)

wiring of S-Video/A/V cable

4_zugentlastung

Some pics

5_Video_Signal

(Video Signal)

6_s-video_1

(S-Video)

7_video_2

(Video)

8_s-video_2

(S-Video)

found a Atari 2600 PAL Prototype of Adventure LAB Labels

Dienstag, April 21st, 2015

Recently I bought a huge package of loose 2600 cartridges. And what appears? One of my favorite Games: A PAL PROTOTYPE of Adventure

prototype_pal_2600

Atari 130XE cleanup

Donnerstag, Oktober 2nd, 2014

I bought a used Atari 130XE in a bad shape:

Atari130XE_cleanup (1)

After doing my job:

Atari130XE_cleanup (21)

Here you can see some photos about the process:

I used the dishwasher to clean the case. But attention you have to remove it during the cleaning process before the dry process starts. I suggest a time around 10-15 minutes.

After removing I cleaned the case with water. If you want to speedup the process you can use a hair dryer. For strong dirt you can use ethyl-alcohol. A tooth brush does a good job too.

For cleaning the keyboard I used plastic cleaner with a brush and removed the water with a pressure air compressor.

Have fun