Settings go to default

[Alex2507]

Seems like once a week or so my distance, channel adjust and cross over settings go back to default. It makes me nuts. It's just as if I unplugged it. My sig lists my gear. Any insight to this problem would be greatly appreciated. TIA

 

[trnqk7]

Power flickering? Can't rely on digital clocks-alot of them have battery backups to keep the time in case of power going out these days...just a thought.

 

[jcPanny]

Call tech support

Call tech support. Maybe you can get an upgrade replacement unit if it is under warranty. There might also be a firmware update to resolve the problem.

 

[Alex2507]

Power flickering? Can't rely on digital clocks-alot of them have battery backups to keep the time in case of power going out these days...just a thought.

I've had the same thought and have read up on the Smart UPS.

Call tech support. Maybe you can get an upgrade replacement unit if it is under warranty. There might also be a firmware update to resolve the problem.

There is a firmware update. I've got it on CD from Harman Kardon with the instructions sitting in a drawer with the manual. I've had it for a year now. I'm lacking an RS-232 wire and the balls to fool with it. A laptop would be nice.

I guess update first and then if the problem persists a UPS might be in order?

Thanks
Alex

 

[chadnliz]

Do you leave unit on all the time? My Rotel will do that if power is interupted breifly but if I leave it off when not in use it is fine.

 

[Alex2507]

Do you leave unit on all the time? My Rotel will do that if power is interupted breifly but if I leave it off when not in use it is fine.

I don't leave it on all the time. I just installed the upgrade. The HK disc didn't work. I had to use the download. I think the real problem is two fold.
1. Battery for memory might be fried.
2. My kid was messing with me. Maybe.
He hasn't been around for a while and there has been no problem since.
I'm glad to have the upgrade done.

 

[Alex2507]

This is out of a service manual so at least I know it's a real problem with a solution. I'm very unlikely to have it fixed though.

Subject: Backup Memory on AVR/DPR/HK series receivers
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:
Check and replace:
Model Designator Location Description Part number

AVR430/630 C657 DSP PCB 0.047 Farad 5.5v capacitor # CEZXA0479MN-5