Strange 282 activity.....

Does your mute selection switch off after about 30 seconds like when you switch on your NAC?

Is there any line of sight from the garage light to the IR sensor on the front panel?

Or is it possible that you turn on the garage light at the same time each day (dusk/dawn) and the two are not really related? IR sensors do get triggered by direct and reflected sunlight. Especially at dusk in the last part of the year in the northern hemisphere when there is a red shift in the evening.

Blocking the Naim logo out with a piece of card and doing a test should confirm or rule out stray IR.

Tuomo posted:

Does your mute selection switch off after about 30 seconds like when you switch on your NAC?

Tuomo,

It seems to remain muted for the duration of 30 seconds.  I cannot deselect mute, just like when it is first powered on, but then after 30 seconds, I have to manually turn mute off.

feeling_zen posted:

Is there any line of sight from the garage light to the IR sensor on the front panel?

Or is it possible that you turn on the garage light at the same time each day (dusk/dawn) and the two are not really related? IR sensors do get triggered by direct and reflected sunlight. Especially at dusk in the last part of the year in the northern hemisphere when there is a red shift in the evening.

Blocking the Naim logo out with a piece of card and doing a test should confirm or rule out stray IR.

FZ, There is no line of sight and it occurs at random times!

I did wonder if it was just coincidence the first few times it happened, and assumed the remote had been knocked, but it is not that.  The garage is positioned next to the listening room, but there is a cavity wall between it and the listening room and it cannot be accessed directly from the listening room either.

It doesn't happen every time, but it occurs quite frequently and immediately as the light switch is turned on!

IR remote controls use a modulated signal so are unlikely to be triggered by stray IR light - you'll more likely get blocking of IR signals or loss of sensitivity when other strong IR sources are present as they can saturate the sensor in the receiver. 

Jason - when you switch on the light are you switching it on with just a conventional wired wall switch or some sort of lighting control system (which relates back to Feeling Zen's final comment). If it's conventional, i'd be tempted to change the starter in the lamp. 

this could be a really, really subtle prank.

Jason knock the garage down lol

It will never happen with 272 and 250DR. 

This days on the forum they are the answer for everything.....

shahar posted:

It will never happen with 272 and 250DR. 

This days on the forum they are the answer for everything.....

That is a very (flat) fishy response if ever I heard one.

If it is just muting for a short while as if having just been switched on, it could be that the garage door is causing a voltage drop. One for an electrician to investigate perhaps?

Just one other thing Jason - is the NAPSC for your 282 on the same separate supply as the rest of your kit ?

Wow, lots of responses, thanks....

Firstly, James.....  The light switch  has a standard wall switch and yes, I was wondering if the starter might be playing a part in this.  My napsc is on the same dedicated circuit as the rest of the audio equipment.

joe9407 posted:

this could be a really, really subtle prank.

Honest, it's not, I know it sounds like it but this is genuine.

tonycurran1 posted:

Jason knock the garage down lol

........but where would I put all my junk!!

shahar posted:

It will never happen with 272 and 250DR. 

This days on the forum they are the answer for everything.....

Mmm, possibly not, but my NDS is going nowhere!!

Richard Dane posted:

If it is just muting for a short while as if having just been switched on, it could be that the garage door is causing a voltage drop. One for an electrician to investigate perhaps?

That's a thought.  It's not an electric door though, its simply the light in the garage and it occurs when I turn the light on, but I guess this could be doing the same when the fluorescent tube powers up producing the same effect?

I think if it continues, I shall start by replacing the starter in the fluorescent light and see how it goes.

Ok - thanks Jason. I'd go with the Starter as the most likely culprit. 

Wow! The 282 is becoming more intelligent. That behavior is just in case you find a thief  hiding in the garage and you ask for help. New feature, not a problem.

Jason posted:

Wow, lots of responses, thanks....

Firstly, James.....  The light switch  has a standard wall switch and yes, I was wondering if the starter might be playing a part in this.  My napsc is on the same dedicated circuit as the rest of the audio equipment.

joe9407 posted:

this could be a really, really subtle prank.

Honest, it's not, I know it sounds like it but this is genuine.

tonycurran1 posted:

Jason knock the garage down lol

........but where would I put all my junk!!

shahar posted:

It will never happen with 272 and 250DR. 

This days on the forum they are the answer for everything.....

Mmm, possibly not, but my NDS is going nowhere!!

Richard Dane posted:

If it is just muting for a short while as if having just been switched on, it could be that the garage door is causing a voltage drop. One for an electrician to investigate perhaps?

That's a thought.  It's not an electric door though, its simply the light in the garage and it occurs when I turn the light on, but I guess this could be doing the same when the fluorescent tube powers up producing the same effect?

I think if it continues, I shall start by replacing the starter in the fluorescent light and see how it goes.

I think you will find this has something to do with the cycle frequency of the fluro light and the electronics in the amp. I recently had a case of bedside lamps coming on in the upstairs of a house  when the downstairs bathroom light was switched on. The cause was found to be digital start frequency on w/c light matching that of the touch activated bedside lights, lol 

It's a fault in the 282, send it back to Naim, and have it repaired. My 202 did something similar, tried everything to fix the problem, nothing worked until I sent it to Naim USA, had it back within 2 weeks, it worked fine until I sold it a few years later.

There is only one thing that comes to mind as to who are you going to call about these particular type of problems.