Marantz AV-9000 processor loses its mind ...

I have no experience with that particular piece of hardware, but every other pirce of gear i have owned would retain its settings if power is removed, for quite an extensive period of time too i might add.

It's probably a faulty unit.

if not, man that sucks. I would think Marantz would include such a feature that is standard in even the lowest and cheapest equipment.

actually, i cannot think of a single piece of gear i have ever owned that would lose its memory once power is removed, except the sony touchscreen remote commander, which would lose its settings if the batterys were removed for over an hour.

Do you think maybe a ood surge protector would fix it? Maybe when the power goes out there is a slight surge that resets the unit to its origional settings.

I had an AV-9000 for a short period of time but didn't become intimate with the internals. Having said that, this is strictly a guess.

Many devices that use digital processing make use of a "memory battery". These are used so as to store specific user adjusted settings should power become interrupted. Without this battery, the unit reverts back to factory default when power is removed, which is what you describe. As such, you might want to look through the manual, contact Marantz or talk to a Marantz dealer about this. If they sell the product, they should be familiar with the needs of it over a period of time.

With the above in mind, some cheap units use a capacitor to act as a storage cell for temporary outages. It is possible that the capacitor is too small or your unit is being left in the "on" position for longer than it can supply reserve power for once power does go down. It's also possible that the cap itself has gone bad.

Several variables here that you might find answered in your manual or by Marantz. If they are of no help, you could modify the unit to include a memory back-up battery. One would need a full schematic of this unit to do that though. Sean
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