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Booka1969
Joined: 02 Dec 2012
Posts: 12
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| Posted: Mon Dec 03, 2012 2:41 am Post subject: Mitsubishi VS-1281 Help |
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I have a mitsubishi vs1281 projector that is power cycling due to an error code 3. Can anyone here help me with service manual for this project. t or. It looks like I need to remove the tubes to access the power 2 board. This projector has les than 300 hours on it and the tubes are in perfect condition. The unit worked when I put it in storage 2 years ago but will not power up. Any help would be appreciated
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Dec 03, 2012 4:14 am Post subject: |
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Sorry, I've got nothing on this. Hopefully someone else can assist.
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ElTopo
Joined: 07 Nov 2006
Posts: 1640
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Dec 03, 2012 8:37 am Post subject: |
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If the machine had worked before you put in the storage room, then I assume your problem is somehow connected to aging (leaking) capacitors, and with a little luck you'd able to fix it only with changing the bad capacitors.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Mon Dec 03, 2012 9:46 am Post subject: |
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Unless its board corrosion that had not made it that far back then.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Dec 03, 2012 1:55 pm Post subject: |
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I Wouldn't assume either of the above, guys. A transistor or chip is far more likely to blow at turnon after something has been in storage for a while than a cap. Just IMHO.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Dec 03, 2012 2:44 pm Post subject: Re: Mitsubishi VS-1281 Help |
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| Booka1969 wrote: | | I have a mitsubishi vs1281 projector that is power cycling due to an error code 3. Can anyone here help me with service manual for this project. t or. It looks like I need to remove the tubes to access the power 2 board. This projector has les than 300 hours on it and the tubes are in perfect condition. The unit worked when I put it in storage 2 years ago but will not power up. Any help would be appreciated |
Since your trying to access the power 2 board then I guess you already know the error code 3 is a power problem for the convergence, focus or deflection board. Just remember that it may not necessarily be a power supply problem but a short on 1 of the other boards causing a draw on the supply triggering the code.
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Booka1969
Joined: 02 Dec 2012
Posts: 12
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| Posted: Mon Dec 03, 2012 3:15 pm Post subject: |
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Thanks for the quick replies everyone. I figured due to the error code the power supply boards would be a good place to start. Frustrating that most of the boards on this projector are socketed and on slide rails and are easily removed but Def not the power boards they are at the very bottom of the device. To be more specific on what is going on.... When I first attempt to power on the device the LED display shows error code 3 as soon as the fans kick on the LED display dims and the device power cycles
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Dec 03, 2012 3:39 pm Post subject: |
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What does the convergence and focus boards look like? STK's?
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Booka1969
Joined: 02 Dec 2012
Posts: 12
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| Posted: Mon Dec 03, 2012 3:52 pm Post subject: |
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I have not yet been able to access the convergence board. The deflection boards use STK ic's
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Dec 03, 2012 3:58 pm Post subject: |
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Sometimes one picture worth hundreds of words, so please take some picture as well for us!
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Dec 03, 2012 4:16 pm Post subject: |
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I think you need at least 5 posts to attach pictures directly, so post one more, or put them up to an image sharing site.
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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Booka1969
Joined: 02 Dec 2012
Posts: 12
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Mon Dec 03, 2012 4:38 pm Post subject: |
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So this machine is equipped with Rubycon caps like NECs.. Do you have any idea wether in what year was this machine manufactured?
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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Booka1969
Joined: 02 Dec 2012
Posts: 12
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| Posted: Mon Dec 03, 2012 4:47 pm Post subject: |
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Unit was manufactured Sept 1996
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Dec 03, 2012 4:49 pm Post subject: |
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| macgyver655 wrote: | | What does the convergence and focus boards look like? STK's? |
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Booka1969
Joined: 02 Dec 2012
Posts: 12
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| Posted: Mon Dec 03, 2012 5:08 pm Post subject: |
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I'm going to do my best to do what I can to get this unit running again because when it was working the picture quality was just amazing. I know just enough about electronics to get myself into trouble. If I can not figure out the fault with this projector I will probably part it out. Like I said the tubes are spotless and when I put this projector away a few years ago it had less than 300 total hours on it. Would the tubes have any value?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Dec 03, 2012 5:11 pm Post subject: |
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What's your location?
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