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Stiletto Stiletto...it's not just for shoes. Come here to talk about the new SL2, the SL100, or the SL10. Share tips, tricks and pointers, all available via WiFi...just like your music!

 
 
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Old 05-27-2007, 03:10 PM   #1
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Default Technical Bulletin (Heat Issues) Unofficial

Shut Downs and Lock Ups

Heat Issues

Many have been reporting shut down or lock up problems with the Stiletto since the temps have been going up due to summer time weather. I too have experienced the freeze up while using the Stiletto outdoors recently. The Stiletto according to the manual has a 104 degree ambient max operating specification.

I have confirmed that there is a temp sensor on the battery as well as the satellite chipset. It seems that by removing the battery that the Stiletto is much less prone to heat issues. The reason for this seems pretty clear. Each time you put the Stiletto in sleep or standby mode it continues to discharge the battery. So when you dock it rather in the car or boombox (these two seem more prone to heat issues) the Stiletto immediately starts charging that battery thereby creating additional heat on top of the satellite chipset. Both of these producing heat is just more than the Stiletto can take and it eventually shuts down or freezes up.

Some of you have noted that by removing the battery that this has eliminated or reduced the Stiletto heat issue. Therefore it is recommended that if you plan to operate the Stiletto in the boombox while outdoors or in your vehicle car dock in direct sunlight that you remove the battery.

I'd like to see some feedback on heat experiences and how removing the battery has impacted this issue. I do know some of us have their car docks mounted by ac vents so if you aren't having this issue in the vehicle then you do not need to worry about removing the battery. (This bulletin is for those that are experiencing this)

One question that gets asked is;

Will it harm the Stiletto to operate it without the battery and the answer is NO. It will not do any harm to the Stiletto.

Note this is an unofficial technical bulletin, but one that I felt needed to be addressed. Feedback appreciated.
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Old 05-27-2007, 07:07 PM   #2
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With the "heat wave" here in Philly for the past few, my Stiletto did shut down in my car dock one afternoon when a meeting ran long. I did see the post about removing the battery, and this weekend was devoted to painting, painting and more painting. I was using the boombox and I did remove the battery and no issues at all over 10 or so hours of painting. Of course having to wait 2 minutes while the unit boots when not in battery mode means less music!
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Old 05-27-2007, 08:12 PM   #3
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Well I suppose a 2 minute delay vs no music at all (45 minutes to an hour) till it cools off is a much better choice. Too bad that we have to worry with this at all. Thanks for the reply.
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Old 05-27-2007, 10:11 PM   #4
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I am definitely seeing this issue when using my Stiletto in the car dock. If I have the battery installed, my Stiletto will hang within 24 hours. To bring it back to life, I have to remove the battery and remove the Stiletto from the car dock. This has been my daily ritual for months now (not happy about it). With the battery removed, the issue is better but not completely resolved. Not sure if it is a coincidence, but this problem seemed to get much worse after the last software update. I was planning to return my Stiletto to Best Buy to try a different unit, but just haven't gotten around to it yet. Any other suggestions?

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Old 05-28-2007, 12:31 AM   #5
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Hey Larry, I can only assume you are experiencing the heat issue. I honestly doubt swapping it is going to make any difference since this is a problem on all Stiletto's. However, you can certainly try that and see what it garners you. Let us know!

There are really no suggestion other than docking it where its not in direct sunlight. I'd recommend docking it where you can have a vent blowing on it. Not possible in every vehicle I understand! The bottom line is the heat sink on the device just isn't handling the job and so the battery removal is just one work around suggestion. Your point was of concern to me which is, will that work for everyone. In your case it has only helped moderately but certainly hasn't resolved the problem. I am thinking there are some situations where this just isn't going to be resolvable.
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Old 05-28-2007, 05:15 AM   #6
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I am thinking there are some situations where this just isn't going to be resolvable.
I was wondering if anyone has put their stiletto in the boombox at the pool or on the beach. Is this going to be a problem?

I think it's time we invent a summer cooling case. Perhaps take one of the rubber cases and line the outside with cooling tubes and attach a water block used to cool those CPU's to the battery. Then we carry a cooling tower to remove the heat. I think Zelman makes what we need. Now we could have a really "Cool" stiletto.
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Old 05-28-2007, 06:29 AM   #7
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I was wondering if anyone has put their stiletto in the boombox at the pool or on the beach. Is this going to be a problem?

I think it's time we invent a summer cooling case. Perhaps take one of the rubber cases and line the outside with cooling tubes and attach a water block used to cool those CPU's to the battery. Then we carry a cooling tower to remove the heat. I think Zelman makes what we need. Now we could have a really "Cool" stiletto.
We used it at the lake last weekend and after a few hours it did freeze up. This is when my son came up with is big idea. We have one of those battery operated ice chest type coolers. You don't put anything in them that is wet, so it stays dry inside. So what was his idea? When he went to the lake this weekend he took the boombox with Stiletto docked and just stuck it down in the cooler. He had to turned the volume up a little bit and left a decent crack in the lid of the ice chest for the music to escape and the Stiletto never shut down.

Seems extreme I know, but it certainly worked. The weired thing is that we never used that ice chest, because it just doesn't keep drinks cold enough, but it does the job on the Stiletto in the boombox. Looks like that cooler will be getting used this summer, but not for keeping drinks cold. LOL
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Old 05-28-2007, 08:45 AM   #8
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I have experienced freeze up/shut down several times over the last few days. I have been doing landscaping around my house and have had the boombox in some areas of direct sunlight with the battery attached. I will be doing more work in the coming days. I will diconnect the battery and let you know how it works out.

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Old 05-28-2007, 09:38 AM   #9
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Stilleto 399.00
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ROTFLOL
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Old 05-28-2007, 01:15 PM   #10
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Once again, this board proves more usefull than Sirius Customer Service.

I called about the overheating and shutting down to see what they had to say about it and their advice was to "run the air conditioning." I said that makes sense but am I just supposed to leave my car idling with the AC on when I'm in 4 hour meetings and I want to record the Stern Show? They had no answer.

I'll try removing the battery this week. You can still record wihtout the battery in right? There would be no technical reason I can think of.
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Old 05-28-2007, 06:29 PM   #11
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I said that makes sense but am I just supposed to leave my car idling with the AC on when I'm in 4 hour meetings and I want to record the Stern Show? They had no answer.
The real deal is that probably leaving the Stiletto on in an extremely hot car for 4 hours recording is going to be well beyond the Stiletto capability. These units are just not designed to work in that type of heat environment. I doubt taking the battery off will make a whole lot of difference, but I guess it would be worth a shot. Let us know how it turns out. Remember the Stiletto has an ambient operating temp of 104 degrees. How hot do you imagine it gets inside a vehicle during the summer, I would bet even in a garage with no sun it probably gets at least that warm, but in direct sunlight... 140 to 170 degrees easy....

So the answer is... you likely aren't going to be able to do it.
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Old 05-28-2007, 08:34 PM   #12
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Had this issue for a couple months, I'll see how removing the battery helps.

By backing-in to parking spots and putting a t-shirt over the unit I see a little benefit.

Do you guys notice the dock lights remain on when the unit shuts down from heat too?
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Old 05-28-2007, 09:11 PM   #13
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Do you guys notice the dock lights remain on when the unit shuts down from heat too?
Yes the dock actually remains active, but the tuner itself freezes up, so this would be normal as it goes.
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Old 05-28-2007, 09:55 PM   #14
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I haven't had the lockup, but I figure I'd mention that when my Stiletto is on in the home dock, it gets rather warm. Not hot, but warm. When I'm walking around with it, and the battery ISN'T being charged, the thing runs pretty cool. I barely feel any heat coming off of it, even on hot days. I don't have the boombox or the car dock, so I can't help you there.

Interesting stuff though, I'll have to try taking the battery out and plugging it into the home dock and see if it runs cooler, to satisfy my own twisted curiosity .
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Old 05-28-2007, 10:40 PM   #15
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I have the vent clip and usually on real hot days run the ac so I never have that problem. I just came back from Chicago for Memorial Day to the Detroit area and never had any problems the entire trip. I do notice some times when I get out of work and the inside of the car is very hot that I have a problem.

I reccomend the vent clip, plus it provides in my case a very smooth clean look with hidding the wires.
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