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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun May 09, 2010 7:40 pm Post subject: |
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| matcra wrote: | | macgyver655 wrote: | | Do you have both the H and V deflection wires and the DIP switch settings for front floor? |
I try DIP 4 and check front/floor, which was endeed wrong, but both attemps do not change the behaviour of the projector...
Reproduceable is that the projector starts for about 10 sec with crt on and everything ok after disconnection for about one night... On next try it shutdowns after 1 or 2 seconds.
Thanks to all for answering and helping... |
Not clear on what your saying. I'm trying to make sure you have your settings and deflection wires set properly.
On DIP switch 2, you should have switch 3 and 4 on open, and your deflection wires should be arranged for front floor.
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Mon May 10, 2010 1:32 pm Post subject: |
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Ok, sorry. My english is not the best...
>Not clear on what your saying. I'm trying to make sure you have your settings and deflection wires set properly.
>On DIP switch 2, you should have switch 3 and 4 on open, and your deflection wires should be arranged for front floor.
This is what I have done... and indeed I had to correct the connector orientation.
But the error remains the same.
So I try this:
>If they are and you still have a problem set dip 4 to short to initialize the E2ROM.
But the error remains the same here, too...
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Tue May 11, 2010 4:10 pm Post subject: |
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Further question:
At an ATX Powersupply for Computers i have the opportunity to connect two cables (usually green and grey on mainboard connector) and then the powersupply goes in ON - Mode.
Does anybody know if such thing exist for LVPS? In this case i could measure the voltages without connecting the Pj to LVPS?
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Wed May 12, 2010 3:25 pm Post subject: |
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Any ideas left, what I could try?
Reminder (try to precise the problem):
Situation after one night power cord disconnected:
After pressing Power-button the projector changes from STANDBY to ON and in the same second back to STANDBY. After 3 sec the projector changes to ON again and runs about 15 sec with CRT on. Then it goes back to STANDBY.
Situation after the projector start fails (see above):
After pressing power-button the projector changes from STANDBY to ON and after 1 or 2 sec goes back to STANDBY. This repeats several times and then the projector stays in STANDBY.
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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: Wed May 12, 2010 3:41 pm Post subject: |
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| matcra wrote: | Further question:
At an ATX Powersupply for Computers i have the opportunity to connect two cables (usually green and grey on mainboard connector) and then the powersupply goes in ON - Mode.
Does anybody know if such thing exist for LVPS? In this case i could measure the voltages without connecting the Pj to LVPS? |
No, there's all sorts of sensing circuits that will either activate or shut down the projector. so all checks need to be done in circuit.
The GP 3000 manual here should be very close to the 5000:
http://www.curtpalme.com/NECPG_Downloads.shtm]
Again, it's been years since I worked on either one, so I'm a bit hazy on the circuits of the 5000 without having one in front of me.
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Wed May 12, 2010 4:20 pm Post subject: |
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During downloading the service manual of GP-3000, I start looking around again in the Pj and then I found this...
I am not familiar with LC Projectors, but what the **** is this?
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2647 Time(s) |
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185.68 KB |
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2642 Time(s) |
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216.24 KB |
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2643 Time(s) |
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215.81 KB |
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2645 Time(s) |
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Wed May 12, 2010 5:25 pm Post subject: |
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that's glycol which has leaked from the bellows and has potentially caused corrosion on any circuit boards it may have spilt on.
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Wed May 12, 2010 6:47 pm Post subject: |
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| kschmit2 wrote: | | that's glycol which has leaked from the bellows and has potentially caused corrosion on any circuit boards it may have spilt on. |
Yes, of course... but why are these LC-tubes so leaky? Boards have no corrosion...
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Thu May 13, 2010 7:06 am Post subject: |
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Slowly I'm going to sure if I would actually make the effort to get the projector running, so:
The Pj. has colored C-Elements (red and green): Are they useable in marquee 9500, too?
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun May 16, 2010 9:46 pm Post subject: |
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There looks to have been some significant amount of leakage. If there is no signs of corrosion on any of the boards it's because the projector was mounted on the ceiling when it happened. Is there stains on the inside of the top cover? Take a flashlight and look in through the lenses for signs of a large air bubble. That's the one that leaked. At that time, also look at the condition of the tube faces. If there is signs of wear, I'd cut and run. If the tube faces look OK, I'd continue on with trying to get it running. I would not spend any money on re-sealing the tubes if it can't be made to run.
I do think the c-elements will fit in another 9" LC projector.
_________________
Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun May 16, 2010 9:53 pm Post subject: |
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I've never seen a 5000 but isn't there something someplace that displays a error code of some sort?
_________________
Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Mon May 17, 2010 2:21 am Post subject: |
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No, no error code.
You really need a working chassis to swap bits with.
The value is the C elements. The rest of a 5000 is a boat anchor.
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matcra
Joined: 12 Jul 2009
Posts: 17
Location: Germany
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| Posted: Thu May 27, 2010 8:26 am Post subject: |
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The phosphor of all tubes is in very good condition and i wonder if it is possible to take all electronics from a 6PG or 9PG with wear tubes and use only the tubes of GP5000?
But before i start, some further question:
The GP5000 is very dim, are the tubes the reason for this or the eletronic?
Does anybody have some experiences with such remodelling?
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Thu May 27, 2010 10:38 am Post subject: |
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What number tubes are they?
Can you see a sticker?
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