Tuesday, 27 August 2019

Trackball Interface Dual Strike

just a quick doc snippet for dual strike


y+= up
y- = down
x+ = right
x- = left
LP = Button1
LK = Button2
MP= Button3
5V = 5V

Tuesday, 23 July 2019

Saturday, 1 June 2019

Repair log knight of the rounds arcade pcb

Repaired a knights of the round arcade pcb, cps1 system.


Player 2 Button 2 not working
No clue for player 3


Checked pcb, found already replaced ics with socket.

Measured input pin on Jamma Connector to ic23 input buffer  Checked caps. Found cut off one. Replaced 74ls245 on socket and resoldered cap.

Input works again

Second found that jp1 pins goto to the buffer. So chance high that this is a interface for player 3. Measured gnd and then try and error give me

1 coin, 2 start p3, 3 left, 4 right, 5 up, 6 down, 7 fire, 8 jump, 9 and 10 gnd

Sunday, 28 April 2019

Tuesday, 26 February 2019

Pi2Cade 2 Player Version

Find here the famous pi2cade 2 player version pcb.

Recalbox support this controller addon board out of the box.

For Retropie follow this tutorial.

Github https://github.com/recalbox/mk_arcade_joystick_rpi

Tutorial Recalbox in German

Tutorial Recalbox in English

Mister IO Board new Batch!

some pics of the brand new Mister IO Boards batch.

Tuesday, 15 January 2019

Pi2jamma Regamebox automatically turning crt screen for vertical games

Find here since pics of the setup for turning the screen automatically when a vertical game is started.


Monday, 31 December 2018

Part 7 cabinet work

Cabinet was on the left very dirty, like it was lying in some cm dust  Anyway some cleaning with magic spoon

T Molding is a pity. Left side was missing completely and I had to replace it with normal white Molding. Original Nintendo Molding is not available anymore .

Part 6 Nintendo Popeye pcb repair

I replaced the burned 330 ohm and 51 ohm resistors by 330 ohm and 62 ohm resistors  Had nothing else at hand.

Saturday, 29 December 2018

Part 4 game pcb inspection for Nintendo Popeye Arcade cabinet

Part 4 game pcb inspection. 

Burned transistors and resistors in rgb section.

Part 3 Restauration of Nintendo Popeye arcade cabinet

Part 3 swap caps and resistors.

First the burned inverter pcb

 Simply ripped caps and burned resistors.

Measured caps with the above equipment and found defect and near defects parts.