DSP 1098 - looses all settings after power cut

[cnaltaylor]

Hi,
I have a DSP-1098, what a wonderful piece of gear !

I do have an issue and I am interested to hear if anyone else has suffered this problem.
We had a power cut recently and my 1098 lost all the personal settings and resorted back to the factory defaults.
I have re-defined the settings again, stored them as personal settings, and all was well, until we had another power cut - D'OH !

All the settings were lost once again - frustration reigns once again…..

Any ideas anyone?

It sounds like a hardware fault to me, but I thought I would ask to see if you have had the problem

Les.

[soundhound]

They may use a small on board battery to retain settings, and if the battery has failed all changed values will be lost.

[Kevin D]

I've had issues before on their preamps/receivers where a power surge (usually with a power failure) can cause a loss of settings.

A small battery backup (UPS) has always solved those issues. The memory is in the eeprom chip, so I don't believe batteries are an issue.

Kevin D.

[soundhound]

Not to split hairs, I would be suprised if these values were held on a ee. When we update the software I am sure that is where this is written to, thus firmware. But the user settable values are more like ram (novram, etc...)and normally need to be held via battery, normally on board. Bob

[Kevin D]

If it is a battery, he should be able to unplug it for the same period as the outage and lose all setting again..

Kevin D.

[soundhound]

Correct. As not to confuse, a power surge (spike) can make it into the system far enough to corrupt memory, although not overly common, but this is not the same as a power fail.

[Bostonears]

cnaltaylor,

Was the 1098 on a surge suppressor or other power conditioner when the power blinked out?

Was it turned on when the power blinked?

My RSP-1068 is on a Panamax surge suppressor. I've lost settings on it when the power went out and the 1068 was in standby. I've also had the power go out when the unit was turned on, and the settings didn't get lost. Maybe it's just a coincidence or random luck, but maybe not.

[cnaltaylor]

I do not have a surge supressor - I may have to look at this ASAP (Aussie Geoff has indicated a good one made in in AUS.

I always leave the unit in standby mode.

I will try switching off the unit and see if the settings are lost.

I think I may have to contact my friendly Rotel supplier ....

[amallol]

I recently had the same problem, contacted Rotel Tech Support and they recommended that I re-install the firmware, which I did. So far so good...

[mjb]

The user settings should be non-volatile, regardless of how this is achieved!

I think the most likely explination (purely speculative) is if a user data corruption is detected the firmware resets or clear's the user data to factory defaults, protecting the unit from erroneous operation. Power fluctuations can corrupt data!

After a firmaware upgrade, factory defaults should be loaded. Otherwise, the old user data may be incompatible with some newer firmware features, and therefore appear corrupted, causing a "load factory defaults" to automatically happen.

As I said, purely speculative, but (to me at least) it sounds reasonable!!!

[cnaltaylor]

I have installed the power surge protection and mains filter, upgraded to the recently released firmware - AND ......

No issues at all - hoorah !

Just watching and enjoying fine reproduction.

Here's hoping !

[DrJRapp]

I've recently experienced loss of all settings on my 1098. This has happened twice since the beginning of the month, but oddly it never occurred before. We have had a large number of thunderstorms in our area over the past two weeks and I suspect that may have something to do with it. My house is equipped with a whole house surge suppressor and my system is equipped with a Monster HTS3600. Between those two I would think my system is protected, however, apparently not.

I suspect that lightning strikes occurring in the area may be inducing voltages within the unit that are wiping out the settings without actually getting into the wiring. Anyone else have any ideas?

[Kevin D]

Any system that we have that experienced this problem always gets solved with a small battery backup unit. I don't think it's surge problems, but really quick moments of no power.

Kevin D.

[Aussie Geoff]

Kevin,

I agree. My RSP-1098 keeps settings for days without power. However a very quick loss (1-3 seconds) such as caused by an electrician - can cause it to loose all settings. Has happenned 3 times in 2+ years...

Geoff

[DrJRapp]

I just added a small (350 va) computer UPS to only the 1098 only in my system. Let's see if that helps.