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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Wed Oct 04, 2017 5:37 pm Post subject: |
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| cmjohnson wrote: | You found broken glass, did you not?. Find out where it came from.
If you can move the tube neck and the big end of the tube doesn't move with it, that's a broken tube.
Post a picture of the pieces of glass if you can. Just to be sure... |
Yes, it was on the foam on the blue tube side when I opened the road case.
I can wiggle the red and green tubes at both ends and the face moves with them. The blue tube doesn't seem to want to move unless I try grabbing it at the neck card end.
How do I go about removing the tubes so I can get a better look at things?
Edit: Found the guide for removal. Is it possible to re-seat the tubes without taking them out completely or should I just pull them all for inspection?
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Wed Oct 04, 2017 7:48 pm Post subject: |
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I would suggest the full removal and inspection.
Word of extreme caution: There are two black cables that have push-in connectors that attach to the neck cards.
If you grab the cable and pull you will PROBABLY pull the cable right out of the connector and that will require you to get a new
connector and recrimp it (with a special tool) with a new connector (very rare, but actually I have some) and that's a pain you don't
want to go through.
So grab the BODY of the connector, at its "wings" with a pair of needle nosed pliers and gently twist and rotate it out of the mating
connector. All six of them, the same way. This way you won't end up with bad cables.
Six, because there are two such cables going to each neck card.
Don't try to do it by hand. Even knowing the issue the fact is that they're connectors that are very weakly attached. I know all
about it but I won't dare yank on that cable. Handle by the body only.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Wed Oct 04, 2017 9:12 pm Post subject: |
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I've gotten the red tube out and there doesn't seem to be any damage to the tube face. Some of the pins are extremely bent, I can get pictures if needed. Are the pins easily snapped or could I bend them back into place?
Will I need to remove everything (yoke, and the other two thingies?) from each tube to check? Do the neck boards need to be taken out as well?
Edit: Green out, again no obvious damage.
Edit 2: Blue out, same story. Pins on blue and green both seem fine.
Pictures of the bent pins and some white gunk near the tube faces:
https://imgur.com/a/dQRHn
I'm going to hold off messing with the neck cards or doing anything else until you can get back to me.
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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 Oct 04, 2017 10:16 pm Post subject: |
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Bend them back in place. The tubes usually snap right where the neck meets the bell of the tube. If they are solid, then you're golden...as long as the electron guns are still sitting straight in the tube necks.
Bend the pins back, and install one neck board at a time, then fire the set up, one tube at a time. Start with the red tube. Also reseat all boards. If the sets took a hit, then no saying what dislodged. check under the front cover, under the lenses for the Pa and HV boards.
As for the white powder stuff, that's pretty normal, don't worry about it.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Wed Oct 04, 2017 10:24 pm Post subject: |
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| Curt Palme wrote: | Bend them back in place. The tubes usually snap right where the neck meets the bell of the tube. If they are solid, then you're golden...as long as the electron guns are still sitting straight in the tube necks.
Bend the pins back, and install one neck board at a time, then fire the set up, one tube at a time. Start with the red tube. Also reseat all boards. If the sets took a hit, then no saying what dislodged. check under the front cover, under the lenses for the Pa and HV boards.
As for the white powder stuff, that's pretty normal, don't worry about it. |
I need to remove the neck boards from the chassis to set them back on, correct?
Edit, PA board:
https://i.imgur.com/BgRm6Bn.jpg
It popped back down when I pressed gently on it. Seems to be intact, miraculously enough  . I'm unsure how I'm supposed to remove any of the cards/boards, do I pull the black tabs outward?
Blue neck board:
https://i.imgur.com/fUBOyjF.jpg
Is it supposed to be bent like that or straight? Thanks for the tip on the pliers, CMJ.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Oct 05, 2017 1:12 am Post subject: |
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That neck card cage is very definitely bent/out of position. Straighten it out. All three neck card assemblies should look the same.
You don't need to remove the yokes from the tubes. If the neck moves separately from the big end of the tube, you KNOW the tube is broken.
All the board removal is generally straightforward. Tabs and screws that are marked with an arrow. Sony is consistent about that.
All screws that need to be removed to take a board or assembly out will always be marked with an arrow.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Oct 05, 2017 1:14 am Post subject: |
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Oh, the white dust near the tube faces is lead oxide from the lead radiation belts surrounding each tube.
Just don't breathe it, and be sure to wash your hands after handling it. If you want to clean it off and restore the lead
belts to a shiny like new look, this can be done with a brass bristle brush but it's definitely not something that needs to be done.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 1:17 am Post subject: |
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How much time should I wait between powering down and plugging in a new tube?
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 2:31 am Post subject: |
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I get the lens error code if I try to start it up with one tube in. Can I safely have the ground wires on the other lenses without having them attached to tubes?
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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: Thu Oct 05, 2017 3:19 am Post subject: |
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Yes, for sure.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 3:25 am Post subject: |
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Alright, thanks. Hopefully I'll be able to get to it sometime tomorrow morning.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 2:59 pm Post subject: |
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Still won't start (lens error) with the ground wires on the lenses.
I don't think I have any nuts lying around if I need to attach those to the screws for it to work.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Oct 05, 2017 4:17 pm Post subject: |
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That's (in my opinion) the dumbest thing Sony did on their projectors. Requiring the lenses to be on the projector and wired in
before you can run it. At the very least there needs to be a service switch that disables that function.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 4:23 pm Post subject: |
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It certainly makes testing and troubleshooting more of a pain than it need be. I'll be sticking all the tubes back in shortly barring any (non-permanent) ideas on the lenses.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Thu Oct 05, 2017 5:03 pm Post subject: |
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So how's the tube condition? Nice clean white phosphor on all tubes, or is there any visible wear?
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 5:12 pm Post subject: |
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The blue tube has minor visible wear. There isn't any visible wear on the red or green that I could spot. The c-elements are still on all the tubes and I don't have a syringe for removing the glycol and I really don't want to if I can avoid it.
Pictures:
https://imgur.com/a/SHI51
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 7:05 pm Post subject: |
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All tubes and lenses connected and I'm still getting E26. I pulled and reseated every board already.
Any ideas ?
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 7:38 pm Post subject: |
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Woohoo, seems I've got it working now  !
Either the grounding plugs have a proper orientation or I didn't have the screws in far enough.
Now I need to rearrange and move on to setup  .
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jbltecnicspro
Joined: 23 Apr 2016
Posts: 512
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| Posted: Thu Oct 05, 2017 10:03 pm Post subject: |
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Congratulations.
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Gypsy
Joined: 14 Sep 2017
Posts: 38
Location: Tolaria
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| Posted: Thu Oct 05, 2017 10:11 pm Post subject: |
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Thanks again for all the help, guys.
Should I make a new thread for setup help or continue using this one?
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