Eventide : changing a H8000FW battery

Eventide are well known for their harmonizers. The term Harmonizer was actually registered as a trademark by Eventide in 1976.

The H8000FW is the latest rack harmonizer version (first one was the 1975 H910). The biggest problem in the design of this sound processing unit is that an internal battery is necessary for user memory to, well, keep user presets in memory. When you change the battery, all user presets are deleted (because of course, you want to change the battery when the unit is NOT powered!) Good news: the operating system and factory presets will still be there after a user memory reset.

After backing-up user presets on a card (and copying everything on a computer & back-up hard drive, of course), I changed the dying battery. Here are a couple of pictures:

Tricky: you have to carefully remove the Firewire/ADAT extension card to get to the battery. You have to be very careful too when you put the card back in place.

If you want to change the battery in a H8000, H7600, DSP7000, Orville, or another Eventide rack unit, you might be interested in the following links; I was glad to find them! Thanks as always to all internet users willing to share their adventures!

The battery I used is not a Panasonic one, but an Energizer one, easier to find in Europe - recommended model in the USA is something like Panasonic BR2330 Lithium 3V Coin Cell Battery.

Feel free to ask if you have any question!

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