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ColecoVision repairs.

Most common reason for failure is first your power supply,
then the VRAM, and probably the on/off switch.
Failure can also be U 18 and U 19 (Joysticks)
But if you're unlucky then check your VDP.

It will today be difficult to find someone who can repair your ColecoVision.
But Yurkie from AtariAge offers you to clean,
modify and greatly enhance your joysticks.
Also an offer from him is the possibility for an A/V mod.
Please contact him here
.

ColecoVision Video Game Console PCB...


 
Power connection for ColecoVision. LM 318 PDF. Power for Roller-Controller.


 

          

 

Connection from DB 9 to Joystick with 2 independent fire-buttons.
ColecoVision Version.
Scart connection pin for pin.
Only for the French AV Out version.
This version are not confirmed.
CBS ColecoVision Scart connection pin for pin.
Only for the late French AV Out version.
This version are confirmed by colecovision.dk

 

 

Project Joystick, March 2005.

Here is a case from TEKO in Italy

Here is an old Joystick from an used
Arcademachine from the  80's.

The final result.
With laminated cover.

 

 

This is the European version.
Almost the same as those one from Right.
This one is branded CBS Electronics.
Note: This is 50 Hz. 220 - 250 Volt.

Coleco's original Power unit was big
and heavy as a rock, and have a weight for that too.
Here can you see the different power there
are necessary for ColecoVision would work right.

The French PAL Version.
All 3 supplys are with same volt in output.
EU : 19A 50 Hz.
US : 25A 60 Hz.
FR : 15A 50 Hz.

 

   

The ColecoVision Bios: VTI / TI  R72 114 A.

ColecoVision CPU: Zilog Z 80.
3.58 Mhz. for ColecoVision.
Todays standard in c-mos are the eZ80 50 MHz.


Size: 344 Kb.

The Ti Sound-chip for ColecoVision is SN 76489 AN.
Has 3 Sound channels on
5 oktavian and 1 white noise, Dual Mono output.

AY-3-8910 A

This is the Gi sound chip for the Super Game Module.
AY-3-8910A is also for use in the upcoming CV 2.


Size: 2.885 kb.

ColecoVision's graphic chip was the most
common graphicchip in the 80's.
It have a palette with 15 colors and 1 transparent.
Resolution is 256 x 192 and up to 16 K Ram.
Composite Video for TMS 9918 and RGB for TMS 9929


Size: 125 Kb.

Data Sheet for the OKI MSM 9842 stereo voice chip.
Can deliver audio in CD quality (44.100).
Will maybe be used for the later ColecoVision CV 2. (2014/15).

The main-board for the expansions Module # 2.
The Steering Wheel.

On the left: The steering Wheel main-board.
This is solderside
PCB # 55888 Rev. D.
Click for larger Image.

This is the Steering Wheel componentside.
Click for larger Image.

If you buy your own steering wheel for your system.
You'll have to use this electronic.

 

Here can you see what's behind your Roller Controller.

Here are the Roller Controller inside.
It's a kind of reverse mouse.
But the ball are on top, so the name will be:
Trackball.
Click for larger Image.

If you buy your own trackball for your system.
You'll have to use this electronic.

 

The Daughter Board / PAL TV-Tuner Board.
 

This is the Tv Tuner Board from the CBS ColecoVision.
It's a Daughterboard inside in the left side of the ColecoVision.
The Tv Tuner  transmitting the signals from ColecoVision over to this tuner.
Tv and Audio mixes to a one single standard HF/RF out.
The channel is typical 3 or 4.

   
Male Phono (RCA) and DIN Tv connector for analog connection between CV. and TV.
 
On the Astec PAL Tuner can you adjust picture and sound separately
with the two screws (be careful black ferrit).

So if you get a unclear screen, or your sound is weak
then will these 2 screws loosen the problem.

Astec International: UM 1285 E 3/4
PAL Tv. Tuner board, CBS version.

Without connector. (earlier 1982 version).
As you can see, the wires are directly soldered into the PCB. from the CV.

PAL Tv. Tuner board, CBS version.

With Connector (1983).
Connects directly into the male connector from the CBS ColecoVision.
it can not be reversed incorrectly.
There may be color differences between the wires
In this example, it is the brown wire (12V).

 

Atari Converter Connector board
 

ColecoVision Atari Converter Connector board - ColecoVision.dk ColecoVision Atari Converter board for the expansion connector.

With the Connector on the back on the board.
Connects to the expansion connector on the front of ColecoVision.
My CBS Atari Converter do not work with my French CBS Scart ColecoVision.


Added with permission. This attempt are on your own risk...
 

Warning This AV-PAL Modifying above are on your own risk.

 
  Click for larger image...
A newer Atari Converter inside.
Click for bigger image.
Rev. ?
  A older Atari Converter inside.
Click for bigger image.
Rev. A

 
ColecoVision Toy Shift Knob details.
Print in .pdf provided by Todd Scheele
Click to enlarge...

Click to enlarge...

How to use the Wico
Joystick/pad
Command Control.
For your ColecoVision.

 
ColecoVision Power Plug... ColecoVision Power Wire Connection, Only For PAL Version...
Wire connection between the power supply and ColecoVision.
Only the White and Red wire er straight.
The two others change from Blue to Yellow and from Black to Blue.
Just remember that I only have these connections via
CBS ColecoVision PAL version.
ColecoVision Power Connector...

 


This is the complete solution for a "total connetion".

How to change your ColecoVision Power Switch.

Last updated: Oct. 06. 2013.