replacing quartz in LEDS

[Adam]

Im sure this has been asked many times but my search doesnt work on the site anymore.

Is there a specific quartz I should use when replacing trying to replace on a dead LED. I have for instance a few working but non working Hughes three button modules. I have pulled the quartz from one of them but it has three prongs. I have looked but have not been able find any. Any pointer greatly appreciated or even point me to an old post if you can use the search.

Id also like to know what trimmers to order as the are much larger than the ones I usually use

thank you Adam

[bruce wegmann]

Shortly after LED watches began to proliferate, a second, competing, frequency standard emerged...786.432KHz, 24 times the original standard of 32.768KHz. I assume the goal was greater accuracy, but higher-frequency crystals eat a bit more energy, so the tradeoff against battery life was marginal, at best. I'm sure 786KHz crystals are still available. Almost all crystals are marked in some way as to identify the frequency. You didn't mention which brand of module you're attempting to repair (and some pics would be helpful).