masible / megadrive-adaptateur-rvb-specs

Technical information about the RGB adapter ("Adaptateur R.V.B.") shipped with French Mega Drives

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megadrive-adaptateur-rvb-specs

Technical information about the RGB adapter ("Adaptateur R.V.B.") shipped with French Mega Drives.

External documentation

Board

PCB

Capacitors replacement

Capacitor Values Form factor
C1 220 µF 25V radial
C2 100 µF 10V radial
C5 220 µF 25V radial
C6 10 µF 16V radial

PCB

Inductor replacement

As you can see in the above picture, L1 (a 3.7Ω 0.27mH inductor) is missing. The TL497ACN chip in its BASIC CONFIGURATION (Peak Switching Current = I(PK) < 500 mA) (page 5 of the datasheet) is the only configuration using a coil between pins 13 and 10 of this voltage regulator, but seems to work correctly without it. Caveat emptor.

Reassembly

Board in case

The board is not symmetrical. You'll probably want to reassemble it by inserting it in the half of the case that has the screw posts, upside down. If the 2 holes that aren't near the cables don't line up, rotate the case 180 degrees.

License

See license file

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Technical information about the RGB adapter ("Adaptateur R.V.B.") shipped with French Mega Drives

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