CurtPalme.com Home Theater Forum

[redfox001]

I read through your post and I understand from Hulio that you should have P16 MEC tubes but your tubes ar liquid coupled tubes P16 LNP. So I think we can conclude that the wrong tubes are in you cine 8. Perhaps these tubes don't focus with the Barco yokes?

Still LC coupled tubes have better contrast so if you can get them to work.

But I don't know enough about 8 inch tubes lets wait on Hulio or someone else to tell.

Apart from that I understand that your cine 8 also shuts down with a failure condition now?

To sum it up.
You repaired an HV issue by replacing the quadrupler. Is there a relation between the quadrupler and the lc tubes? Do these tubes work at the same HV as the Mec?
You have a focus issue?
The Cine 8 shuts down with an unknown issue?

[Hulio]

All P tubes are MEC tubes. Panasonic=MEC ( Matsushita Electric Corp.) but not all P16's tube are the same. When repalcing tubes, the abreviation after the tube size ( P16 XXX ) is important. They may fit physicaly in the neckboards but they could have different pin assigments. They are also designed for LC or AC optics. If the Cine 8 came from factory with sony 07MFP02 tubes, in order to put P16's in it, a neckboard mod. is needed. Here the diff. pin-outs layout of both tubes.
@ redfox: Not the tubes are responsable for better contrast and less hallo effect but the LC chamber. The glycol between the tube and lens. Only Cine 8 Onyx and retro 808 variants were Barco's eight inch LC projectors.
Trevor, is a shame that you ended up with that machine. Eventualy, it can be reanimated but you are not there yet.
The cheapest and least time ( and money ) consuming way is to find good Sony 07MFP tubes and keep the HD8 reb.B lenses.
Another way is to go with P16 LXW tubes. Those were fit on later Cine 8's but you have to mod. the neckboards for pin compatibility. However the tubes are hard to find.
Or, the most expensive and not worth the trouble if you ask me, put LC chambers on your tubes and lenses from a Zenith 1200 Pro.

[km987654]

The least cost solution in my view is to get his BG808 running and then move the appropriate boards and tubes across. Basically both his sets are similar. This method requires no new parts.

In terms of different bell shapes for different tubes while that is an issue it usually manfests itself as a defection problem caused by an incorrectly fitting defelection yoke. I would imagine that this might have a focus implication but not to the extent demonstrated here. The Bell shape problem is also between Sony and MEC tubes although I certainly don't know all possible variations of all tubes.

As I asked earlier does the the BG808 focus correctly?? The other issues with this Projector will be addressed.
If it does focus properly then pull the convergence tray on each and post a picture please.

[CasetheCorvetteman]

Keith, im yet to read all yet, but i know using the wrong P16s can cause huge focusing issues, such as the LJE range, those from an XTRA will work in an XG, but will never focus, yet the XG compatible tubes will work in a PG XTRA, but are a shade too long.

I havent looked back at previous page yet, but if his tubes are half an inch short, focusing willbe exactly as we seeing it, and the neck gear will only just fit, as it does.

[km987654]

[dentree]

Cine 8 convergence try

[dentree]

BG 808 Tray

[dentree]

Are those pictures good enough for what you are looking fr, r do yu want more detail and ID information

[dentree]

As best as can measure I have taken a measurement from bavk of the mounting plate (which would approximate the face of the tube itself)
to the ceramic neck where the board plugs into it the measurements are:

CINE 8 425 mm

BG 808 405 mm

[dentree]

As previously mentioned the BG808 did not have any operational problems, apart from the fact that the Green tube seemed to lose focus after an hour or so, the focus could not be dialled back in electronically, I always had to re-focus optically, and there was a minor convergence (usually drifting south) and apart from the obvious burn presenting itself mainly on the green and to a lesser extent the blue (13200 hrs clocked) the projector has worked without any problems at all.

And as I stated earlier the interest in the CIne 8 was driven by the new tube carrot (and updated electronics)
and 5 years younger Nov 2000 as opposed to Oct 1995 on the 808

it was mentioned that the possibility might exist that the person I bought the CINE 8 from may have had his fingers in it somewhere, that I would very much doubt, I do not think that there was much of an understanding of these machines, I in fact as you may have gathered do in fact know very, very little about these devices myself, and I think the seller knew even less than me.

Although it is academic now, the issues found to date point back to the refurb job allegedly carried out in the U.S.

[CasetheCorvetteman]

[CasetheCorvetteman]

[CasetheCorvetteman]

[PrestonDwiggins]

Digital products play a dispensable role in our daily life in such a technology developed dramatically world. More and more people want to own a high configuration electronics with a fast operation speed. With development of high technology, it is common to see that there are various kinds of high tech products nowadays,
Wanna try wholesale Car Audio?

[dentree]

Here are the pictures of both projectors yoke positions, they are all up tight to the bell of the tubes

[dentree]

This is the Cine 8

[CasetheCorvetteman]

What are the yoke numbers?

Im way out bush at the moment in the hot sun, having alot of trouble seeing the phone screen, so im not sure if theyre visible in your pics or not.

[km987654]

[dentree]

Here are the only numbers I can find on the focus coils the
BG 808 has identical numbers on each coil which is: 1073177

Cine 8 also has identical numbers on each coil, which are: 1180057

[dentree]

Here are the only numbers I can find on the focus coils the
BG 808 has identical numbers on each coil which is: 1073177

Cine 8 also has identical numbers on each coil, which are: 1180057