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Happ USB Trackball - bad optical encoder - fourth time

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divemaster127:

The boards you replaced with are all the pre revision 2 boards those came out around late october & early november
dm

2600:

divemaster,
Do you have pics of the new board so that we could see what changed?

I'm assuming they had a wrong resistor value and had too much current going to it.

divemaster127:

I can get a pic later today, im at work right now
dm

fiscap:

I know Happ came out with new 'red' boards for their non-USB/PS2 trackballs, have they done something similar (red or green) with their USB/PS2 model since the summer? I'm leaning towards what 2600 mentioned in that they may have some wrong resistors on these optic gates - allowing too much current and they eventual give out.

divemaster127:

Happ came out with revision 2 boards for red & green I have sold several sets & so far(knock on wood) no issues
dm

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