Oakley MOTM-820, OMS-820 manual Testing

Models: MOTM-820 OMS-820

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Testing

Since there are two sections, we will test each one in turn. The easiest and the best to test first is the LFO function. Simply flip the LFO/EG switch into the LFO mode. Set all the UP and DOWN pots to their minimum, and make sure the MOTM’s bypass function is off. Now set the UP/DOWN control to position 7. The Output LED should now start to move between two different colours. One cycle should take about a second or so. Adjust UP/DN and see if the Output LED flashes with varying rates. If it doesn’t then switch off and check everything again.

If this is OK, then set the module to EG mode and set it to AR and GATED mode. Set the UP/DN pot to level 7. Now press the GATE button and keep your finger there. Does the GATE and SET LEDs light up immediately? Does the OUT LED quickly rise in brightness? Now let go of the GATE switch. The GATE and SET LED should go out, and the OUT LED diminish over a short time.

Now flip it to AD mode, now press GATE again. The GATE LED should stay on, the SET LED should stay on whilst the OUT LED rises. Then should go out as the OUT LED diminishes.

Now set the module to RESETABLE and AR mode. Briefly pressing gate should make the OUT LED rise, and stay on. Pressing RESET should slowly extinguish it.

Check that the UP and DOWN pots on the OMS-820 actually do what they should. They should simply replicate the ones on the MOTM-820.

If that all works, you should have a completely working module.

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Oakley MOTM-820, OMS-820 manual Testing