CurtPalme.com Home Theater Forum

km987654 · Posted: Thu Jan 15, 2015 9:19 pm Post subject:

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Proceed to yoke modding if you are ready, carefully remove the threaded collars and move the yokes further forward.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

km987654 · Posted: Fri Jan 16, 2015 1:27 am Post subject:

dentree · Posted: Fri Jan 16, 2015 9:22 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:23 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:24 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:25 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:26 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:28 am Post subject: Barco Cine 8

Yoke and coil alteration

dentree · Posted: Fri Jan 16, 2015 9:29 am Post subject: Barco Cine 8

Yoke and coil alteration

km987654 · Posted: Fri Jan 16, 2015 9:31 am Post subject:

Nice work. Has it made any difference?

dentree · Posted: Fri Jan 16, 2015 10:04 am Post subject: Barco Cine 8

As you can see Casey, (spent all day doing this) really hard plastic, used a hacksaw blade, also after inspecting the "job" this morning I realised that to actually make any difference at all I would have to cut the yoke lugs off at the point where the clamp was originally and cut the focus thread off completely, however I did notice that removing the coil thread completely left me with no facility to centre the coil on the rear of the yoke, but it would give us more forward movement, this I have done,

After putting it all back together the yoke seems quite stable, and the coil is now only held by the back clamp, all pushed up very tight, and because the coil is so tight to the rear of the yoke assembly, what little play there is in the coil laterally is non existant so everything seems to be OK, do not know what might happen when the unit gets very warm, there may or may not be issues with regard to expansion.

Apart from the fact that your blood is worth bottling, the before and after results are as follows

BEFORE BEST FOCUS

RED= 15

GREEN =13

BLUE = 10

AFTER ALTERATION BEST FOCUS

RED = 44

GREEN = 33

BLUE = 30

Having said that those figures are based on no manipulation of the astig rings from neutral, I will get to that later, if you think that these numbers are now acceptable, I will make some arrangements to get the thing inverted on the ceiling and set the whole thing up.

With regard to your comments about the HD Fury I heartily agree but our budget does not really run to that (maybe one fine day) I do want to see what happens with the Fury or Moome, or whatever come along it would be nice to see what the CINE really can look like especially with the new tubes

I am sure I am not finished with this by a long shot, but I heartily thank you and yours for such magic support !!

Trev

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Mate its no worries at all, im glad we got you sorted. We have been over that set with a fine tooth comb, and it should now serve you quite well for a fair while to come.

I have a HDF 3 here if you want it, i wont be needing it, so youre welcome to it if you like.

dentree · Posted: Fri Jan 16, 2015 10:19 am Post subject:

Hello km987654
I could not agree with you more, but old age and the attendant pensions put such items in the "wish" basket, all the gear that I have was purchased around 2005/5 it was up to date then, but time marches on and I have to to the best with what I have got here, at least for the present, but many thanks for your input and suggestions, they are noted,
Regards
Trev

dentree · Posted: Fri Jan 16, 2015 10:19 am Post subject:

Hello km987654
I could not agree with you more, but old age and the attendant pensions put such items in the "wish" basket, all the gear that I have was purchased around 2005/5 it was up to date then, but time marches on and I have to to the best with what I have got here, at least for the present, but many thanks for your input and suggestions, they are noted,
Regards
Trev

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Early on in the piece it was really quite a hard call to make, i was swinging between tube issues and potential splitter issues, it sure did seem to me as though the set was operating fine electronics wise.

What you want to do with that blue is get your astig as perfect as you can mechanically, set the electronic astig, then set all zones of electronic focus as even as you can, and i would then add ten to your centre focus number. This should give you nice even blue defocus for good greyscale, and blue being over focused like that will have no real impact on your overall image sharpness, the NEC sets actually have a switch or menu setting to do this automatically. Colour reproduction will be alot nicer and more even.

dentree · Posted: Fri Jan 16, 2015 10:28 am Post subject:

Casey, your offer of the HD Fury sounds like an offer I cannot really pass on, so perhaps you could tell me what you want for it, it would be great to take this one step further, I have only in very recent times bought a few BluRays and have been given a few as presents so I store them in anticipation that I will get to see the difference at some point.

I take it that the focus numbers I sent you are acceptable to you in the scheme of things, as they are a VAST improvement over the original, don't know what I would have done without you!

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

I dont want anything for it, im happy to give it to you!

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Yeah mate those numbers are what i would consider as good as youll get, and shouldnt have any negative affect on stability.