Archive for the ‘Various’ Category

Powersupply Adaptor for CPC 6128 with External Floppy Drive 3½

March 13th, 2010 2 comments

My homebrew Powersupply adaptor for Amstrad CPC 6128 with a External Floppy Drive 3½.

source: jrp king homepage

Amstrad (Schneider) CPC 6128 Parados Rom v1.1

March 12th, 2010 No comments
Parados v1.1 Screenshot

Parados Installation Photo Gallery:

ParaDOS is 16kB ROM that replaces the AmsDOS. Allows to use double-sided floppy disks and some more disk formats.


Apple IIc – Apple Disk Transfer ProDOS

March 10th, 2010 3 comments
APPLE ][ Serial Cable & Serial USB Adapter

Foto review of the Serial cable and Transfer program:

ADTPro may be used to transfer Apple diskette/disk images in DOS or ProDOS/SOS format. The Apple client side happens to run under ProDOS or SOS, but it is perfectly capable of reading or writing Apple DOS (or Pascal, or CP/M, or…) diskettes.


Amstrad CPC Powersupply adaptor & RGB (Audio) Scart Cable

February 13th, 2010 No comments

My homebrew Powersupply adaptor & RGB/Audio Scart cable for Amstrad CPC 464/6128.

source: jrp king homepage

unBrick my Fonera 2201

January 24th, 2010 No comments

I have bricked my fonera and now the power light comes on but the fonera reboot cycling. I cannot access the web gui /ssh or telnet through redboot. Serial Connection fix all  my problems.



A new Sinclair QL Membrane from RWAP Software

January 21st, 2010 No comments

Replacement the Sinclair QL membrane and reassemble the Keyboard.


Atari 1040 STf TOS Eprom Upgrade v1.04

November 6th, 2009 No comments
Yep, it's works!

Some Screenshots :


Atari ST replace Epson broken Floppy Drive with a Teac FD235 HF

October 25th, 2009 No comments

Teac Floppy Drive and some games Screenshots:

source: atari4ever

Commodore Modem 8010 Powersupply pinouts

August 31st, 2009 1 comment


  • PIN 1 = Common (GND)
  • PIN 4 = Free
  • PIN 2 = 14.6v (AC)
  • PIN 5 = Free
  • PIN 3 = 14.6v (AC)

Click here for my Commodore Modem 8010.

ZX Spectrum +3 (Issue 1) Sound Fix *updated*

August 22nd, 2009 2 comments

Sound fix diagram here. (pdf)

from Cristian Secară Homepage:

The first release (the +3) has a fatal hardware mistake: the 128K sound output is completely distorted.

  • Tech explanation: the analog output of the AY-3-8912 sound chip was intended to be amplified by a one stage common-emitter transistor. In practice, they have forgot to put a resistor to the transistor’s emitter. The result: the transistor works in switch-mode – the sound is converted from analog multi-level amplitude to digitized two-level amplitude, same as the old 48K sound system.

source: ay8912 Demos

CBS ColecoVision Secam RGB connector pinout Hack *updated*

June 14th, 2009 15 comments

Coleco Vision RGB Hack

ColecoVision RGB Hack:

Photo from #3 to #6 explain how to hack the RGB output signal inside the console.

ColecoVision RGB connector pinout:

\ o1  o   o3  o   o5  o   o   o8 /
 \  o   o   o   o   o13 o   o15 /

Pin Signal

 1  Red Output
 3  Green Output
 5  Blue Output
 8  Ground
13  Composite Synch
15  Audio Output (very low volume)

Scart RGB pinout:

  _| 19 17 15 13 11 9 7 5 3 1 |
 |                            |
 | 20 18 16 14 12 10 8 6 4 2  |

Pin Signal                     Signal level

 1  Right Audio Out
 2  Right Audio In
 3  Left Audio In
 4  Audio Ground
 5  Ground (blue)
 6  Left Audio Out
 7  Blue input                 (0.7V, 75ohm)
 8  Function select/AV control (9.5-12V = AV mode, >10kohm)
 9  Ground (green)
10  Reserved Data
11 Green input (0.7V, 75ohm) 12 Reserved Data
13 Ground (red) 14 RGB Blanking
15 Red input (0.7V, 75ohm) 16 RGB switching control (1-3V = RGB mode on, 75ohm) 17 Ground (sync signal) 18 Ground (RGB switching) 19 Composite Out 20 Composite Input (Synch) (as in 1Vpp video signal, 75ohm) 21 Common ground (shield)

Arcade Supergun MK III Fixed for my SNK MV-2F MVS

May 10th, 2009 3 comments


  • Video Contrast problems: i have bypassed the resistor for RGB. (Photo #6)
  • Jamma Connector is too big for my SNK MV-2F MVS: I have used a rasp for reduce the Jamma connector. (Photo #7)

source: wikipedia

My old LPC Programmer (CheapLPC) for Xbox modchip

January 22nd, 2009 10 comments

The CheapLPC is a flashrom burner for the SST49LF020 chip, The Software can read back, and verify the contents of the chip.

The software is also compatible with any other CheapLPC based programmer, like that used in the Martrix by Xodus, Ozx Prog by OZx Modchips, Neurosys, and a few others.

Download: GreenProg (CheapLPC Programmer) v0.7 (455)

source: wikipedia

Pong from Polistil (1979) with AV output.

November 6th, 2008 1 comment

Here’s the Pong in a chip from Polistil (1979) with the Famous chip TMS1965 (GI AY-3-8500 pins compatibile) from Texas Instruments.

have added a Composite Video / Audio output  intested of VHF antenna output.

wiki: Pong-Wiki

Homebrew UV Eprom Eraser

September 27th, 2008 No comments

My homebrew UV Eprom Eraser. I have spent 8 euros for electrical components and 3 euro for the box.