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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: Sat Mar 07, 2009 7:56 pm Post subject: No point convergence on 10PG? |
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OK, here's a new one on me. I sold a 10PG a while back, and the customer said that the point function would not work in the set. Push the point button, nothing happens.
I got him to check the pushbutton switches on the system board, they were both out. Had him check the seating of the boards in the card cage, fine. Had him check the point enable in the menu, it's enabled. HAd him send the system, wave and point boards to me, they check fine in a 6PG here.
My next guess is a bad motherboard that the system boards plug into? Never had that happen, but hey.
Am I missing anything?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sat Mar 07, 2009 9:34 pm Post subject: |
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Convergence drive and deflection should also be involved. See pg 6-159 in 6/9PG service manual. but i'm sure your thinking "but regular convergence is ok". Also, what is the point board out of? Did it work in the 10 PG before or never?
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jarseneau
Joined: 06 Nov 2007
Posts: 323
Location: WI
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| Posted: Sat Mar 07, 2009 10:37 pm Post subject: |
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Possible problem with the remote? Can they get to it by hitting ADJUST>CONVERGENCE>POINT? It should at least prompt for a passcode. Not sure what happens if no passcode has been entered yet.
Besides, you should never use POINT  so disabling it is a feature and not a problem!
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Jerry
Last edited by jarseneau on Sat Mar 07, 2009 10:43 pm; edited 1 time in total
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sat Mar 07, 2009 10:38 pm Post subject: |
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The motherboards are passive, but screws do end up under them from time to time.
Also, sometimes turning a function OFF and then back ON will work. Odd one. This is a STOCK PG10?
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This space for rent.
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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: Sat Mar 07, 2009 11:20 pm Post subject: |
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Yep, stock 10PG. It worked here, I checked it, but has never worked since at the customer's place. I'm offering to send another motherboard down. the point doesn't show up in the menus, I had him check that. He toggled the 'enable' on and off this morning, still nothing.
I did nothing to the set save for to change the convergence board that was bad in it. I'm wondering if someone lost a screw in it (not me, I'm anal about that now!) but maybe something got lodged under the motherboard?
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Tinman
Joined: 09 Mar 2006
Posts: 1326
Location: Carson City Nevada
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| Posted: Sun Mar 08, 2009 4:05 am Post subject: |
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I'd lift the motherboard and check for a screw underneath. Also check and re-seat all the cables on it.
I know Doug has found screws under motherboards a few times.
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Mon Mar 09, 2009 5:19 am Post subject: |
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I never liked point.
If you use it, it may fix one spot, but it throws the other areas off around it. Then you are using point to fight to correct the areas that the initial point setting changed.
Also, using point just goes to show that you have not set the PJ up correctly in the first place. Do the set up correctly and skip the point.
Deron.
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perisoft
Joined: 29 Aug 2007
Posts: 2920
Location: Ithaca, NY
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| Posted: Mon Mar 09, 2009 8:50 am Post subject: |
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| deronmoped wrote: | I never liked point.
If you use it, it may fix one spot, but it throws the other areas off around it. Then you are using point to fight to correct the areas that the initial point setting changed.
Also, using point just goes to show that you have not set the PJ up correctly in the first place. Do the set up correctly and skip the point.
Deron. |
I still don't understand why everyone detests point, but it's absolutely necessary for setting up a Barco (no geometry for R and B). Totally different system design? And I've never run into any issues using point on my 808, even when my basic setups weren't great and I had to use a relatively large amount (ie, no banding, changes in other parts of the screen, etc). Even with a really clean initial setup you need 3 to 5 clicks per point.
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deronmoped
Joined: 03 Nov 2006
Posts: 1154
Location: San Diego
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| Posted: Tue Mar 10, 2009 5:07 am Post subject: |
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| perisoft wrote: | | deronmoped wrote: | I never liked point.
If you use it, it may fix one spot, but it throws the other areas off around it. Then you are using point to fight to correct the areas that the initial point setting changed.
Also, using point just goes to show that you have not set the PJ up correctly in the first place. Do the set up correctly and skip the point.
Deron. |
I still don't understand why everyone detests point, but it's absolutely necessary for setting up a Barco (no geometry for R and B). Totally different system design? And I've never run into any issues using point on my 808, even when my basic setups weren't great and I had to use a relatively large amount (ie, no banding, changes in other parts of the screen, etc). Even with a really clean initial setup you need 3 to 5 clicks per point. |
If you have ever set up a NEC PJ, you would soon realize that if the PJ is set up correctly point is not needed.
Deron.
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Mar 11, 2009 1:44 am Post subject: |
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| perisoft wrote: |
I still don't understand why everyone detests point, but it's absolutely necessary for setting up a Barco (no geometry for R and B). Totally different system design? And I've never run into any issues using point on my 808, even when my basic setups weren't great and I had to use a relatively large amount (ie, no banding, changes in other parts of the screen, etc). Even with a really clean initial setup you need 3 to 5 clicks per point. |
Totally different system
NEC's and Sony's are similar in their methodology, Barco shares more closely with Electrohome in its system...
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