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Repair & Schematics
Sega NAOMI 2

Glitched Graphics (Sega NAOMI 2)

1min

Glitched graphics such as flashing, checkerboard, random blocks or color distortion are all caused by:

  • Power-VR2 chips (IC15, IC110)
  • Their RAM (IC16-23, IC111 to IC118)
  • In rare cases, the video encoder chips (IC5, IC41)
  • In rare cases, the CLPD to video encoders (IC7)
  • Trace damage between any of the above chips

The most common by far are the RAM chips.

An example was IC111 RAM was faulty on one pin and caused a black and white checkerboard pattern over the whole screen.

Updated 03 Aug 2023
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