Tag Archives: Disassembly

Sega Dreamcast repair With GDEMU, PSU and Battery Mod

Just recently my GD-ROM drive stopped reading Discs. It’s time to try something new: GDEMU

Sega Dreamcast GDEMU 01
Sega Dreamcast GDEMU 01

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Atari Lynx II New LCD Screen, 5V Mod and Connection to Framemeister

To replace the aged Lynx screen with a new LCD screen is no rocket science.

First you need an Atari Lynx II and the LCD screen kit by McWill.

Atari Lynx II and LCD screen kit
Atari Lynx II and LCD screen kit

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Philips CDI 220 Mini MMC 60Hz Modification and TimeKeeper Replacement

Recently I found a CDI 220/00 with Mini MMC mainboard. It’s a heavy and bulky unit that contains lot of PCBs, wires, screws and metal parts. It’s one of the first consumer CD-i players, later models have all components on one single mainboard (Mono).

CDI220/00 inside
CDI220/00 inside

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NEC PC-FX Laser Pickup HOP-E1

I’ve been struggling with a weak PC-FX laser for quite some time. What kept me from changing the laser or pickup unit was that having to take apart (and put it together later) the PC-FX is something you wouldn’t wish your worst enemy. However, getting close to the drive unit is surprisingly easy, just follow this guide.

First you need a replacement laser. I chose the complete pickup unit (Hitachi HOP-E1), it’s available for about 15€.
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Sega Mission Stick – Continued

While removing the throttle wheel from the stick unit I noticed two small plastic rings connected by a spring jumping away. It took me quite some time to figure out the correct position when assembling the stick. In case you encounter this problem too, this is how the rings have to sit on the throttle wheel:

Throttle wheel

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Sega Mission Stick / Analog Mission Stick

The next Saturn peripheral on my list is the Sega Mission Stick.
This is the black US model MK-80104:

Sega Mission Stick

It has been used before but is still in a very good shape. Unfortunately it smells rather strange. Better take it apart to give it a good cleaning.

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Mocoro vs. WonderBorg

Recently I found an interesting cleaning device, the CCP Microfiber Mop Ball Mocoro. Videos of it cleaning the house or entertaining cats are all over the internet.

CCP Microfiber Mop Ball Mocoro
CCP Microfiber Mop Ball Mocoro

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60 Hz Modification Tutorial for Philips CD-i Player CDI 220

When looking for a modification to improve the video size/quality of DVC games on my PAL CD-i player I’ve found that two tutorials only are covering that kind of modification (here / here and here). The modification enables PAL player to display full screen video without the black bars on top and bottom. NTSC players benefit from this modification too as there are PAL exclusive software titles that already have full screen video (e.g. De Zaak van Sam) – without the modification parts of the screen are cut off.

Unfortunately the mainboard of my CD-i 220 differs to those used in the tutorials, so I had to get a service manual to figure it out myself. The service manual I found is valid for the Philips CD-i players CDI 220/20 220/25 220/39 (PAL) and CDI 220/31 220/37 (NTSC). It says there is an unimplemented connector 1201 in square C6 of the mainboard:

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Repair a Xbox 360 Controller

If you drop a Xbox 360 controller don’t let it land on it’s bumper buttons. The micro-switches break easily in the inside. They might still work but need more pressure to be triggered. This problem plagues old Sega Saturn gamepads too.

To open Xbox 360 controllers you need a special Torx security screwdriver with a hole in the tip, size T8H. If you don’t have this rather unusual screwdriver you can break the tiny pins in the screws and unscrew them with a regular T8 or T9 Torx screwdriver. Seven screws need to be removed (yellow circles). One of them is hidden behind the white sticker with the barcode and not behind the black sticker where I looked for it first (red circle).

Xbox 360 Controller screw locations

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Datach Joint ROM System

The Bandai Datach Joint ROM System is an add-on for the Nintendo Famicom. It plugs right into the cartridge slot and comes with its own small cartridges. The games are enhanced with barcode cards, similar to the Mattel HyperScan.
The retail package with one include game, Dragon Ball Z: Gekitō Tenkaichi Budokai, is rather easy and cheap to obtain.

Additional games are very rare and even rarer and pricier when the corresponding barcode cards are included. I’ve seen some bootlegs of those games on regular Famicom carts but never tried them so far.

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