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CBS ColecoVision: diagnosing and fixing motherboard faults

I have decided to repair my two ColecoVision consoles bought like non-functioning many years ago. Below a description of the defects and of components being replaced.

Defect: black screen

  • 1 x 2114 (VRAM)
  • Joystick port # 1 broken (replaced with the joystick port of a Texas Instruments TI-99/4A)

Defect: black screen

  • 1 x 2114 (VRAM)
  • 3 x 4116 (RAM)
  1. J-Yves.
    December 12th, 2014 at 11:45 | #1

    Hello ! I took a look to your troubles with your ColecoVision consoles, I also have the same problem : black screen, but sound still working.
    I’m looking for the 2114 and 4116 components to replace them, can you please tell me where I can find them and be sure it will be ok ?
    Many thanks for your help, best regards.

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