CurtPalme.com Home Theater Forum

[dentree]

It certainly is... I just gently pushed on it an it slid down into it's socket

[CasetheCorvetteman]

Hmmmm.... I didn't know they were in a socket with no solder....

Hulio or Curt will probably know, but I would expect they would be soldered into the board. Im reasonably sure they are on my Cine 9

[CasetheCorvetteman]

[dentree]

All the focus coils are the same, they all look alike to me, just to condense there is nothing
floating around in the machine everything seems to be where it should be, as you said there would be very little room to move on an 8" machine, although the BG808 has a ton of space along the tube neck, that's mainly due I think because the
G 2 boards are mounted above and to the rear of the neckboard that plugs into the end of the tube.
Here is apic showing the amount of space along the neck on the BG 808

[dentree]

A better view of the space in the 808 which is what I half expected to find when I opened the Cine 8, basically they are the same physically just I understand a boatload of refinements, plus the Cine 8 is 5yeras younger than the BG 808 I have here

[dentree]

Thanks for your thoughts Hulio, however the neck board gear clamp is non-negotiable it's position on the neck is governed by the the heatsink attached to the circuit board and the yokes are tight to the rear of the tubes

[CasetheCorvetteman]

Yeah his theory there was the same as mine, if you stick a ferrous metal close to the coil, it has a huge impact.

The fact your issue is on all 3 tubes leads me to the focus board or system board, if not maybe even the quad or splitter, which im lead to believe can have an impact on focus too.

Do the clamps all have their black ground wire connected??

Do the focus coils have the same part number from the 808 and the Cine 8 you have there??

Is the focus board the same part number?

I don't know what is interchangeable between an 808 and a Cine 8, but it was also depend a bit on what model of Cine 8 it is, there is 3 or 4 different variants.

[CasetheCorvetteman]

Is there a focus pot anywhere inside a Cine 8 or an 808??

[dentree]

There are no focus pots that I am aware of on either the 808 or the Cine 8, in fact the last time I saw actual focus pots were on the BG 801

[CasetheCorvetteman]

Yeah ive never seen the set in the flesh, only the CineMAX/9, which is bound to be quite different.

The NECs had a pot to adjust focus for each colour, as well as the 9 zones on screen digital adjustment, which is partly why I assume the lower Barco sets may do too, the little red wire from the quad is related to focus, I don't know where it connects to so im not sure what is next to look at.

I have a spare splitter here that I have never tested, it has "blury" written on it and I have read elsewhere of splitters having an impact on electronic focus with a Barco before.

[CasetheCorvetteman]

Hey tell me you didn't pay the crazy price that set was being listed at on Ebay, assuming that is the same one???

[dentree]

The focus coils are different numbers on each machine
All ground wires are connected
The Quad I had to take from the BG 808 as the Cine 8 one was cooked (see pictures in earlier post) The exchange Quad fired everything up so I imagine it is OK, although I have left a post for Curt asking him to give me a price for a new one for the Cine 8
Any idea as to how I determine which flavour of the Cine 8 I might have?
I also assume that the splitter is OK my understanding is that it will either work or not.
the focus board I do not know about, not even sure which on that is.
When you say pull out the tray at the bottom, do you mean that full width tray with the IRIS on?
the picture incidentally on a 3 meter wide screen (at least with the BG 808 was really very good and plenty bright enough for a totally controlled situation)

[CasetheCorvetteman]

Yep, saw the rooted quad.

The sticker on the back of the set will tell you exactly what Cine 8 model it is.

Yes the tray under the lenses, it has the IRIS camera on it yes. It also has the system board, astig board, convergence board, and focus board.

The splitter may either work or not, but it could be better said "the splitter may either work properly or not"

Oh, 3 meters wide... I was thinking something totally different for some reason, my screen is around 2.7m wide with the CineMAX.

[dentree]

Yes it was the one on ebay, but I didn't pay what was being asked, (my seniors pension doesn't run to anything too esoteric) mind you I am beginning to wonder whether it was a good idea after all The main reason I stuck with Barco was because I had some understanding of them, whereas I know very little if anything about all the others out there, in fact I was toying with the idea of another one, a BG808 which was for sale for $200 but the cost of delivery from the Queensland border was prohibitive, as I only wanted it for back up spares for the 808 I already have, as it is I have as I mentioned had to cannibalize my Bg808 for it's Quad to get this Cine 8 going
This spare splitter you have, I am wondering if might be an idea to give it a try, an see if it would help the situation any, (that is of course if you would be willing to part with it), otherwise if I cannot get this resolved without spending mega bucks (which I can't really afford to do) as this thing at present is turning into something of a nightmare for me at the minute, I was hopeful of a better picture especially with new tubes, but I am yet to realise this yet.

Another point I am struggling with is the fact That I really want to turn OFF the IRIS control, I have set it up, but it's not very accurate (neither was the one built into the BG 808, although that did not activate itself, it had to be turned on, the one on the Cine 8 seems yo be in a permanent state of ON, there in nothing in print or the menus to turn it OFF, whereas the LIMO has an OFF/ON option (currently OFF)
I will only deal with that if ever I get into this machine far enough, after all the other quirky things are sorted out

[km987654]

The problem is likely on this board

http://www.curtpalme.com/Barco808_Layout2.shtm

Do you have any spares? Try one if you do. Don't assume the focus coils need to slide forward toward the deflection coils either try moving the focus coils backward toward the neck board. It seems unusual that all three would be in the wrong position on the other hand the H-Shift and focus board is common to all.

[CasetheCorvetteman]

The focus coils cant really move Keith, theyrepacked on the neck tight as a drum. Its not going to be that, youd never get that much aft movement to need to wind the digital focus to zero.


I didnt relise the focus and h shift were on the same board there!

[km987654]

[CasetheCorvetteman]

There is nowhere for them to slide, looking at the pics on the previous page it seems to be simular to the XG where everything is hard up against the next all the way from the deflection coil to the neckboard.

Either way, youd have to move them a considerable amount toward the neckboard to make the focus still blury at zero, when they look like theyre allready hard against the deflection coil. That is clearly not going to be the issue here, not on three tubes.

Being that the chassis is alloy and non ferrous, we should be able the rule out the need for a degause due to residual magnetism...

[km987654]

I have the same setup. Either remove the front mount for the RGB amp or reverse the plastic part that goes around the tube.

[dentree]

Could you please give me some detail about how to go about what you have suggested, do not know what is meant by removing the front RGB amp, and the bit about the reversal of which plastic part
Many thanks for you input and interest, actually I am quite overwhelmed by the responses i am getting, sooner or later i am sure this issue will be resolved