CurtPalme.com Home Theater Forum

elpha · Joined: 13 Jan 2011 Posts: 138

Hello everyone, I do not understand I can not adjust the focus on the sides of the green a reality 909
Center, top, bottom are perfect.
Can you help me?
Elpha

Tom.W · Joined: 09 Mar 2006 Posts: 6635

Have you tried adjusting the Scheimpflug on green ?

http://moesrealm.com/home-theater/guides/crt-projector-focus-mechanical-aim-basics/

**Curt Palme** · Posted: Sat Sep 22, 2012 5:27 pm Post subject:

Look into the lens. If the tube face is out of focus, then the focus board most likely is bad. I can repair it. I've had a few fail.

Cheers!

elpha · Joined: 13 Jan 2011 Posts: 138

Yes the sheimplugs are good

It is not focused if I look through the lens crt
What would it be broken? Sad

Tom.W · Joined: 09 Mar 2006 Posts: 6635

Sounds like you need to focus the electron beam but you said focus was good in the center ? Curt is most likely correct.

**Curt Palme** · Posted: Sat Sep 22, 2012 8:08 pm Post subject:

The focus board on the 'convergence' board tray under the tubes. THe board under the red tube is the controller, the one to the left of that is the convergence, then the astig, and the focus is under the blue tube on the far left. UNscrew it, and email me. To save money, you can take the heavy heat sinks off before shipping.

elpha · Joined: 13 Jan 2011 Posts: 138

Hello and thank you for your help, I found no problem in focus block the tubes, I used the service manual to locate the card.
You can just be me ship the components will change here?
thank you

**Curt Palme** · Posted: Sun Sep 23, 2012 1:00 pm Post subject:

No, because I don't know what's bad. I need the board here to test and repair it, sorry!

I will be out of town for 2 weeks starting next Saturday, so I could look at it when I get back on about Oct 16.

elpha · Joined: 13 Jan 2011 Posts: 138

Hi all, after changing some capacitors on the controller still does not resolve the image geometry.
I do not know what to do for the 909. Sad

**Curt Palme** · Posted: Sun Oct 28, 2012 2:54 pm Post subject:

I've already told you what needs to be done, but apparently you don't want to do it.

elpha · Joined: 13 Jan 2011 Posts: 138

I am looking for a solution
What do you suggest please?
I really want to use this machine you know.
How to be sure this is the controller?

mc86 · Posted: Sun Oct 28, 2012 4:14 pm Post subject:

Hi Elpha -

Folks know you are looking for a solution -- but...

There is another pseudo-active thread right now in which several of the most knowledgeable AND generous-with-their-knowledge folks on this site strenuously advocated that all diagnosis and repairs on the 909 be carried out by experienced hands only. I am still a neophyte CRT enthusiast, but this seems to be uniquely (essentially) true to the 909. As Curt *just* obtained some 909 machines from Spanky AND will be setting up a test-bed, so he will be able to help you AND (as everyone here will tell you) will provide his expert service at more-than-fair prices.

If you are going to own a Ferrari, don't expect to service it yourself! BMW, Mercedes and others, perhaps. Those of use who have the CRT equivalent of Fiats can try without worry! Wink

best of luck!
Matt

elpha · Joined: 13 Jan 2011 Posts: 138

Ok, I understand, thank you for all your advice, now I'll wait.
Repair at the right price is Good for Ferrari
But if this is another failure?
I'll be patient

**Curt Palme** · Posted: Mon Oct 29, 2012 2:33 am Post subject:

I will state it again for the record: THe Sony G90 and the Barco 909/Cine 9 are the hardest sets to repair, as the projectors are very complex. Not many were built, and in both the G90 and the Barcos, the circuits for the most part were completely redesigned from earlier sets, so the procedure to learn how each module works, and how to find defective parts was lengthy. In fact, most problems with the 909 are unique and I can't troubleshoot via email.

I believe at this point that I am about the only person worldwide that works on 909 modules and who has a test chassis. Yes, repairs are twice the price at least of any other CRT projectors, due to the complexity of the modules, and the fact that you won't find a spare 909 on eBay for $500, like you can almost any other set. Still, my repair prices are usually 20% of what it costs to buy a new board from Barco. I don't charge to test working boards, as long as one of the boards you send is defective. Then I charge only for the repair.

YEs, shipping of boards can be expensive, but it's a lot cheaper than sending in your boards for testing than it is to buy a random PC board, hoping that you're guessing correctly as to which board is defective.

My suggestion has been for you to send me several of your boards for testing. I'll put them in a 909 here, and will let you if one or more are defective. If you don't want to send them in, I believe your 909 will sit being defective unless you find another 909 for parts use. THey aren't easy to find.

It's up to you what you want to do.

Spanky Ham · Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central

I hate to pile on elpha, but you may want to read my thread about the 909s. Like I said in that thread, it seemed like every time I messed with the 909s there was an issue. For me, I hated it as I usually enjoyed troubleshooting and fixing my old CRTs. I guess I was lucky as either the 8" pjs I have had were easy to fix or the problems were minor.

Are there any guys still working on CRTs in Europe? If not, then I would box up all of the boards and have Curt give them the once over. It sucks, but these pjs are expensive. If economics is an issue, then (and you may already have one) an 8" might be a better option.

elpha · Joined: 13 Jan 2011 Posts: 138

Hello everyone, what boards do you need to troubleshoot?
A ship which address?
thank you

**Curt Palme** · Posted: Tue Oct 30, 2012 9:55 pm Post subject:

Email me at curtpalme@shaw.ca

Thanks!