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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Thu Dec 22, 2011 6:55 am Post subject: |
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Yeah get onto Curt, he will help you with spares.
| AnalogRocks wrote: | | CasetheCorvetteman wrote: | | AnalogRocks wrote: | Geeze Case, dontcha know its the whozit whats it thing-a-ma bob? Everybody knows that!  |
No mate, its easier to be accurate, then everyone should know what ya mean  |
I was kidding.... |
Yes that was obvious, and so was i, hence the at the end!!
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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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| Posted: Fri Dec 23, 2011 6:47 am Post subject: |
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| gjaky wrote: |
The easiest way to check it out to plug out the neck board. The neck board is connected to the closest board in the iron box (Gain CTL) at the end of the machine which has a lot of trimmer resistors on it (DON'T TOUCH THEM), so if you plug out the wide connector of the blue neck board then your machine will power up (at least we hope)
Topull the neck board you need to release it. There is a philips screw which holds the neck through a rubber(ish)ring this is what holds the board firmliy, again the room is very tight, you'll have to play to get out the board |
So I finally managed to pull the wide plug of the blue tube from the Gain CTL board, and the machine powered up fine. As soon as I put the plug back and power on, the blue gets very bright and everything shuts down. I did manage to remove the blue neck board. And that's enough for tonight. I will try tomorrow to swap neck boards...unless someone has a better idea???
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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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| Posted: Tue Dec 27, 2011 3:47 am Post subject: |
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I pulled the blue neck-board and inspected it; there is a component that appears fried: D3908. I don't know what that is, I will try to post a picture. I pulled the red neck board and put the blue board in it's place: I powered on and the red became very bright and everything shut down, as with the blue. I conclude that the blue board is bad. I wanted to put the red board on the blue tube, but one of the wires was not long enough to hook up, so I don't know if there is anything else. It would be nice to know if it is just the blue board.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Dec 27, 2011 5:05 am Post subject: |
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Yeah the diode wouldnt be the whole cause here i wouldnt think...
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Tue Dec 27, 2011 8:11 am Post subject: |
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I had exactly the same problem, it was the diode and the IC that went bad. It is very hard to find a new VPA-13, replace the whole board.
These tubes are very well built, they doesn't generate much problem. Buy a new board throw it in and everything will be fine, trust 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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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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| Posted: Tue Dec 27, 2011 1:21 pm Post subject: |
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Thank you once again for all your input. I just need now to find a neck board. I sent an email to Curt last week to see if he had any such parts in case I really needed it. I have not heard back yet, although given the Holidays, it's not so surprising. I'll post an add in the sale section also...
By the way, how do you post images? I see that I would need to post it on some public server, but I've never done that. What do you use?
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Tue Dec 27, 2011 2:29 pm Post subject: |
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| Untuned wrote: | | By the way, how do you post images? I see that I would need to post it on some public server, but I've never done that. |
Nah,
You just have to add it as an attachment to Your post. If it's too large it will be shown as a file, otherwise it's shown with a frame around it...
Regards,
barclay66
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Dec 27, 2011 2:40 pm Post subject: |
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Forget that, just use Photobucket, then you can use it on other forums as well.
www.photobucket.com
That way everyone can see it no matter where you post... Nothing worse than seeing attachments are posted and you cant view them....
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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Tue Dec 27, 2011 4:41 pm Post subject: |
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Hmmm... I wonder what has caused this....
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Tue Dec 27, 2011 8:38 pm Post subject: |
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parts are cheap so no need to trouble-shoot a burnt board. However looks like a blown diode with a transistor near-by, somemthing went bad there, prolly the transistor
There's a 6PGX I can grab locally for parts but the 2 hour drive round trip is really holding me back.  If Curt has nothing then I will do it.
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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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| Posted: Wed Dec 28, 2011 4:04 pm Post subject: |
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Draganm, how much would you sell your board for, and what would I expect for shipping? My postal code is J4B 6E7, but in a pinch, I could have it shipped to NY state, 12919 (it's a 2-hour round-trip, but I often save packages up to make it worth my while).
I don't want to put you out, but as you said, if Curt can't help me...I'm waiting to hear back from him.
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wallace123456
Joined: 14 Aug 2006
Posts: 2236
Location: Northwest VA area
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| Posted: Wed Dec 28, 2011 8:00 pm Post subject: |
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If Curt does not sell you a new card, let me know. I think I have about 3.
wallace
_________________
Life Is Good, But BBQ Is Better! BBQ Competition Team
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Thu Dec 29, 2011 7:53 am Post subject: |
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| CasetheCorvetteman wrote: | | Forget that, just use Photobucket, then you can use it on other forums as well. |
Umm,
There are other forums than this????
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Thu Dec 29, 2011 9:00 am Post subject: |
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Yeah mate i frequent a few gaming forums, and i have noticed a fair few times you can see the attachment is there, and it can only be seen by logging in. Sometimes i dont have an account, and cant see the pics. Other times, i just think why bother uploading pictures on here when photobucket is WAY better and free???
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Untuned
Joined: 03 Dec 2011
Posts: 93
Location: Pooler, GA
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| Posted: Tue Jan 10, 2012 5:09 pm Post subject: Resolved: Runco DTV-933 powers off after several seconds |
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I installed another neck-board (thanks to Mr. Wallace), and everything powers up fine.
Thank you for all your input and support!
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Tue Jan 10, 2012 11:31 pm Post subject: |
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| barclay66 wrote: | | CasetheCorvetteman wrote: | | Forget that, just use Photobucket, then you can use it on other forums as well. |
Umm,
There are other forums than this????
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_________________
Tech support for nothing
CRT.
HD done right!
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed Jan 11, 2012 12:12 am Post subject: |
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Maybe You like this one better: What? You wanna tell me that there's a world beyond CRT?
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