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nateduffer
Joined: 07 Feb 2013
Posts: 10
Location: WA, USA
TV/Projector: Sony VPH-D50HT, Runco DTV1100 and DTV933, Sony G90
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| Posted: Sun Mar 10, 2013 3:11 am Post subject: Is this IC421 chip in my G90 OK? |
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I have attached a photo of the highly discussed Dallas and IC421 chips on my YA board. The chip labeled IC421 does not seem to have the risky lot number that I've been reading about. It appears to be 836A01E. Is that right? Am I looking in the right place?
Also, a point of interest is that the black plastic shell of the Dallas chip is bulging slightly on the end with the logo. Is that normal?
I wonder if these YA boards run hot?
All the expert advice and information you guys share in this forum is greatly appreciated.
N
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Phoenixed
Joined: 13 Oct 2011
Posts: 514
Location: The mitten
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| Posted: Sun Mar 10, 2013 5:11 am Post subject: |
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Have you booted up your g90 yet?
_________________
Planar PD-8150/Runco LS-5
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Mar 10, 2013 6:08 am Post subject: |
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Your IC421 is out of a good lot and will never fail.
Don't run your G90 with your Dallas chip like that. It may strike the tubes and ruin them. If you want the Dallas chip data tested, and if good copied to a new chip, you may pull it and send it to me to duplicate. Email me for details.
craigr
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Phone: 865-405-6892
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nateduffer
Joined: 07 Feb 2013
Posts: 10
Location: WA, USA
TV/Projector: Sony VPH-D50HT, Runco DTV1100 and DTV933, Sony G90
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| Posted: Sun Mar 10, 2013 9:06 am Post subject: |
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I only ran it briefly to check the hours and verify that it functioned after transport. After that I decided to leave it unplugged until I have a chance to learn all I can here, and until I replace the red c-element. (This projector is the subject of the "Scary" topic)
That's great news about the IC421, Craig. Thanks. I will email you about the Dallas chip. Thanks to information you guys have shared in this forum, I found out about these chips before watching a really 'bad' movie.
Nate
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Mar 10, 2013 3:56 pm Post subject: |
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Got your email and just sent one back.
It's ok to have the projector in standby, but don't power up the projector at all with that Dallas chip. If the Dallas chip data becomes corrupt, the tubes may instantaneously get struck (ruined) without any warning what so ever. Literally, it will happen before you even know that it has happened and there will be no warning signs.
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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Clarence
Joined: 08 Mar 2006
Posts: 3827
Location: Smith Mtn Lake, VA
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| Posted: Thu Apr 04, 2013 1:17 am Post subject: Re: Is this IC421 chip in my G90 OK? |
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| nateduffer wrote: | | The chip labeled IC421 does not seem to have the risky lot number that I've been reading about. It appears to be 836A01E. |
That's the same lot number as mine...
SONY
CXD305
-127R
836A01E
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