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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Fri Sep 23, 2011 6:55 am Post subject: |
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| wallace123456 wrote: | | From what I understand, the battery in the chip is not reliant on external power to keep it "charged". |
Hi,
Exactly. It contains a non-rechargeable Lithium battery (I took some of those apart years ago)...
Regards,
barclay66
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Fri Sep 23, 2011 1:39 pm Post subject: |
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The internal battery is not engaged on the shelf. It is electrically connected after installation and the first power up. So if the Dallas was sitting on the shelf for a few years after it was manufactured then it would last longer then 10 years of its date code.
Ex.... date code 2000, installed 2004......should last until 2014.
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Sep 23, 2011 3:31 pm Post subject: |
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| wallace123456 wrote: | Mine (projector) has a date of Sept. 2000. Thankfully, Craig will be out here soon and replacing mine.
I do wonder, what makes some chips last longer than other. From what I understand, the battery in the chip is not reliant on external power to keep it "charged". So, unless I am wrong, the chips (battery) should be going bad within a few years/months of each other depending on the year the chip was made. No?
wallace |
According to the chip datasheet, the battery is not engaged or activated until the first time the chip is programmed. So theoretically, a chip that is shelved for many ears without ever having been programmed should still have a near new battery. After the chip is written once, the battery death clock starts running.
That being said, about a year and a half ago, I got 20 Dallas chips here that were supposedly new pieces. They were all 10 years old. When I went to use these chips, none of them would hold data for more than an hour after being programmed. I had to throw them all into the garbage and take a hit on them 
craigr
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Sep 23, 2011 3:31 pm Post subject: |
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| macgyver655 wrote: | The internal battery is not engaged on the shelf. It is electrically connected after installation and the first power up. So if the Dallas was sitting on the shelf for a few years after it was manufactured then it would last longer then 10 years of its date code.
Ex.... date code 2000, installed 2004......should last until 2014. |
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Sep 23, 2011 3:34 pm Post subject: |
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| Curt Palme wrote: | New Dallas chip came in, inserted it, got green 30 error like Craig said, reset it, 30 error went away and set now turns on.
Thanks for the info guys.
FYI, this Dallas chip lasted 11 years, it was made in 2000. Sooo nice to see a new Dallas chip with '11' as the first 2 numbers in the date code. 
For those that don't know, most chips have a date code on it, as in 0211.
That means the chip was made in the 11th week of 2002. FYI. |
I have a number of G90 clients whose G90's I have been servicing since they were installed brand new. The first time a Dallas chip died was about eight years after installation of the projector. It seems that most chips last about eleven years, but many die much sooner even before they have reached their rated lifespan.
If you have a G90 with an original Dallas it should be changed right away at this point.
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Fri Sep 23, 2011 6:19 pm Post subject: |
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[/quote]
That being said, about a year and a half ago, I got 20 Dallas chips here that were supposedly new pieces. They were all 10 years old. When I went to use these chips, none of them would hold data for more than an hour after being programmed. I had to throw them all into the garbage and take a hit on them
craigr[/quote]
Wonder if they were counterfeit.
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