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#47054 - 06/21/03 05:07 PM No sound after power outage
HTLearner Offline
Gunslinger

Registered: 05/06/02
Posts: 19
All,

The following has happened to my 950 twice-- I'd sure appreciate your advice:

After a neighborhood power failure, the 950 powers on but will not play sound through any of the channels except the LFE. The first time it happened I just waited and the 950 started working normally again after a day. This time it is still not producing sound after last night's power failure.

Everything is plugged into a line conditioner/surge protector and all other components work fine. The 950 powers on and the LCD display is normal, bass comes through the subwoofer but none of the other channels have sound. I tried unplugging everything and plugging back in. No dice. I have the 950 plugged into the 755 amp. The amp seems to power on OK as well.

I am sure it was a power failure since my PC and all the lights went off last night. Next step is to do a hard reset on the 950. I am hoping to avoid that since I will lose all the settings. And I don't know if that will help either. Any thoughts?

Thanks,

-HTLearner

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#47055 - 06/21/03 05:24 PM Re: No sound after power outage
soundhound Offline
Desperado

Registered: 04/10/02
Posts: 1857
Loc: Gusev Crater, Mars
Aside from a hard reset, I would get a power strip with a good surge protection device. Sometimes when the power comes back on, there is an overvoltage spike. Not good.

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#47056 - 06/22/03 12:51 AM Re: No sound after power outage
MeanGene Offline
Desperado

Registered: 06/10/02
Posts: 524
Loc: Simi Valley, CA, USA
What kind of line Conditioner/surge protector were you using? I want to make sure I'm not.
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#47057 - 06/22/03 02:29 PM Re: No sound after power outage
HTLearner Offline
Gunslinger

Registered: 05/06/02
Posts: 19
I'm using what I thought was a pretty decent surge protector/line conditioner-- a Panamax 5100. Note that all other components plugged into the Panamax work just fine. I am now wondering if the problem is in the 755 amp rather than the 950. I guess I could try plugging my 950 into my old Denon receiver and seeing if I get any sound.

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#47058 - 06/22/03 06:03 PM Re: No sound after power outage
MeanGene Offline
Desperado

Registered: 06/10/02
Posts: 524
Loc: Simi Valley, CA, USA
Quote:
Originally posted by HTLearner:
I'm using what I thought was a pretty decent surge protector/line conditioner-- a Panamax 5100. Note that all other components plugged into the Panamax work just fine. I am now wondering if the problem is in the 755 amp rather than the 950. I guess I could try plugging my 950 into my old Denon receiver and seeing if I get any sound.


I have the Panamax 5300 and it has saved by system once already with a fuse blowing in one speaker. The Panamax shut everything down right away. Did you try the reset on the 950? It shouldn't take to much time to get back they way you had it.

When you say the 950 is "plugged" into the 755 amp, you mean with cables not cords, right? I am not familiar with the 755, but if it has an AC out I would not use it and go to the Panamax instead. Use the DC trigger to turn components on together.

If the Panamax did fail to protect your system, maybe the Panamax warranty will cover the 950.



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#47059 - 06/22/03 06:06 PM Re: No sound after power outage
DaleB Offline
Gunslinger

Registered: 11/15/02
Posts: 146
Loc: Clovis, CA,US
Do let us know what happens, Sometimes logic can get scrambled in devices, but this typically cured with a power reset.
If it is the amp, it could be an internal fuse. Not having such an amp I do not know if it has one.

Both components should have internal fusing.


[This message has been edited by DaleB (edited June 22, 2003).]

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#47060 - 06/22/03 08:58 PM Re: No sound after power outage
HTLearner Offline
Gunslinger

Registered: 05/06/02
Posts: 19
All,

I will definitely keep you posted on how Outlaw handles this. By 'plugged in' I meant the 950 pre-out analog cables into the 755 inputs. I didn't mean power. Both the 950 and 755 power cables were plugged into my Panamax.

I went ahead and did a couple hard resets of the 950, to no avail. But, upon further testing it appears the problem may be the 755 rather than the 950. I tried connecting two older receivers to the 755 using the receivers' pre-outs, and neither would produce sound through the 755.

Assuming I connected everything correctly and didn't make a dumb user mistake, it would appear the 755 is not functioning properly at this point and therefore whether the 950 works or not is undetermined...

At this point there is no proof that the 755 or 950 were damaged from a power outage that the Panamax failed to protect from. It could be that, or it could be a coincidental failure of the 755 amp (perhaps a bad unit?).

I've written Outlaw and I'll keep you posted. Man I miss my music already.

-HTLearner

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#47061 - 06/22/03 09:22 PM Re: No sound after power outage
soundhound Offline
Desperado

Registered: 04/10/02
Posts: 1857
Loc: Gusev Crater, Mars
Does the 755 have a user-replaceable fuse somewhere or a circuit breaker?

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#47062 - 06/23/03 12:38 AM Re: No sound after power outage
HTLearner Offline
Gunslinger

Registered: 05/06/02
Posts: 19
Soundhound, looking for a fuse or circuit breaker switch was my thought as well. No dice.

The manual for the 755 states "Your Outlaw Audio Amplifier uses advanced protection circuitry that does not require fuses. In the event that the amplifier senses a shorted speaker wire, DC voltage on any input connection or thermal overload creates a condition that could potentially cause damage to the unit or to your speakers, it will automatically shut down."

Since the 755 was plugged into my Panamax surge protector, and the amp/950 combo quit working after a power outage (not necessarily a power surge), I am starting to think the amp had a problem unrelated to the power outage.

Hopefully Outlaw will get back to me tomorrow.

-HTLearner

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#47063 - 06/23/03 02:42 PM Re: No sound after power outage
Smart Little Lena Offline
Desperado

Registered: 01/09/02
Posts: 1019
Loc: Dallas
Since the 755 was plugged into my Panamax surge protector, and the amp/950 combo quit working after a power outage (not necessarily a power surge), I am starting to think the amp had a problem unrelated to the power outage.


Not necessarily. As SH (I think) pointed out earlier the surge could have come into the system on restart of your local. It could have been compounded by the earlier incident you had. (you mention when things slowly came back on line ...next day)

Remember MOV technology (in your panamax) is degradable unlike series mode, which is theoretically not degradable, touted at frying on a direct hit at the same level your in-wall wire will melt at.

And the Panamax will not show a degradation level, just either ON or total failure when it gets to that point.
If you have these kinds of ‘surges’ in your neighborhood I’d look into some heavier protection.

Weird but true story. (ANOTHER DAY in my neighborhood) Last month I was getting ready for trip and on my PC till 1:30am trying to finish business so that I could pack for my 5 am departure. Storm comes, - power goes out. I’m cussing the computer, himself is trying to calm me…”It will back on in 15” Well an hour later, he’s holding a flashlight while I go through my closet to pack! All my packing done by flashlight/candlelite very disorienting....didn't know what I'd end up wearing on this bikini/formal wear combo trip. We leave at 5am…still no power ….poor housesitter.

When we get back in town turns out in my Mom’s neighborhood, about 3-5 miles as crow flies. The storm hit even harder, a tree came up by the rootball and bashed a Powerline. House next door to this powerline catches fire (not due to tree) just power surge/spark. Garage w new Lexus in it is destroyed. Fire Dept tear out side of garage etc. These HO’s are out of town during the occurrence so no-one notices fire for a while. ….Whole neighborhood lost power when tree fell.

Lexus house catches on fire when power is lost. Another neighbor gets nervous (everything APPEARs fine at her home but?) so early AM next morning, She calls her electrician to check out her house. Electrician comes over in PM starts checking her house over (power is still out in whole neighborhood). Finds at some point during all this that her whole house surge protector on her main panel has fried. While he’s STANDING in her house …the power comes back on…..which sets off a spark in some wiring in the Master Bedroom, and her house starts burning. Her and the electrician call 911.

By the way I am blessed I have not (gotten too) getting my mom a panamax (or something) for her new display/DVD player I purchased for her…have not had time…..she did not lose any of her electronics during all this mess.

Point of whole story….Power-off/Power-on do weird things. AND I’ think I’m going to look into a lighting rod

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