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Mike Parker's 1292 Streaking Fix! - Page 2  

post #31 of 470
Mike,
will you list the parts required to do this mod?

The reason being is there is a couple of people in Australia keen on doing this fix and we are quite cappable of installing the mod ourselves.

Thanks Darren
post #32 of 470
This is great, I have been going crazy trying to figure this streaking problem out !!!
Hey Mike I can solder , no problem, just tell me the parts, and were to put them (be nice) I have a BG808 , Gary and I are in the same streaking camp :)


Regards
post #33 of 470
Funny how streaking has always been associated to 1292, and now that there is finally a fix, there are more Barco requests than 1292 requests :D
post #34 of 470
I can solder, have a scope for adjustment, and a copy of the service manual

Last project:

http://www.poohsticks.org/drew/image...n_xo-small.jpg
post #35 of 470
Mike:(

Can you also let me know how you are going to set up the kit for fixing the streaking? I have 5 Sony 1292Qs that might need it. Thanks.

Stan
post #36 of 470
bump.
post #37 of 470
Mike,

I'm and electrical engineer with access to professional solder stations and (maybe more importantly) people who do this type of work for a living (i.e. there is knowing how to solder and then "really knowing how to solder") if you are looking for someone to verify your fix.

Any component change suggestions you have to improve (reduce) changes in convergence during "warm up" would also be greatly appreciated.

Let me know if I an help.

Ed
edsuski@cox.net
post #38 of 470
Hi,

I live in the netherlands, can anyone can tell me what this streaking problem is or can anyone send me a picture of this?

Thank You,
Sultan
post #39 of 470
I "really" CAN solder... LOL! I use all Metcal equipment.

Marc
post #40 of 470
Mr Parker,

How hard are the boards that need upgrading to get at? Will we have to disassemble the whole thing, or is that not a worry. The soldering is the easy part! Getting to the board(s) out may not be... Not that I have ever tried actually, but I always hear how 1292's aren't exactly modular.

Thanks, James
post #41 of 470
Mike, you realise that Graham is in not-so-sunny Melbourne, Australia don't you?
post #42 of 470
Quote:
Originally posted by pasey25
Mike, you realise that Graham is in not-so-sunny Melbourne, Australia don't you?
Yes. It's just that the internet makes this world we live in a small place. Here in the states we have Terry (chuchuf) and some others, but so far I only have Graham who has expressed an interest in this some time back.
post #43 of 470
If you need to find one in Europe, i'd be pleased to help ;)

--Patrice
post #44 of 470
I live in TN. and would love to help I have 2 1292's myself and I can solder very well.

Thanks,
Richard
post #45 of 470
I broke from my busy schedule and worked on the 1292 early this morning. Before I left my shop, I was able to see a totally STREAK FREE image on that 1292. Initailly, the streaking on this projector was very bad, but it's now non existing.

It's been a very long time since I've had any experience with a 1292. I don't remember them having so much noise in the video chain. Once that noise was ALSO lowered, the projector has a very sharp/punchy image. I was able to run very high scan rates using my RGB test pattern generator. I also ran a CD test pattern. Everything looked good.

I'll do some more testing later, and will post back the final results in a coulple of days. And at that time I'll post my intent to provide this upgrade/fix/mod. There's 4 boards/modules involved for a total picture upgrade.


:cool:
post #46 of 470
Mike,

Any chance you will have a fix for the XG's?

Regards,
Joakim
post #47 of 470
Great Mike!

Lets move this puppy up the best projector list!


James
post #48 of 470
Quote:
Originally posted by mp20748


It's been a very long time since I've had any experience with a 1292. I don't remember them having so much noise in the video chain. Once that noise was ALSO lowered, the projector has a very sharp/punchy image. I was able to run very high scan rates using my RGB test pattern generator. I also ran a CD test pattern. Everything looked good.



:cool:
If that doesn't put a smile on your face, nothing will..

:) :)
post #49 of 470
from what I gather this is for all pj's that suffer, Am I wrong Mike??

-Gary
post #50 of 470
Mike, you can't imagine how happy I am to read this :D
Thx a million, now I just hope I can get this fix in Europe ;)
post #51 of 470
Oh crap I see 1292 prices on ePay increasing:D
post #52 of 470
Quote:
Originally posted by Gary Murrell
from what I gather this is for all pj's that suffer, Am I wrong Mike??

-Gary
I won't go that far, but I'm sure this same problem can be solved on some Barco's. The parts needed would be different, and the circuits may not be the same. The problem with the 1292 was very unique.
post #53 of 470
Please tell us this might work for a Barco, there are lots of us out there with streaking on the 808, I am sure many of us 808 owners would be more than willing to help out and test etc etc

Thanks Mike

-Gary
post #54 of 470
Quote:
Originally posted by Gary Murrell
Please tell us this might work for a Barco, there are lots of us out there with streaking on the 808, I am sure many of us 808 owners would be more than willing to help out and test etc etc

Thanks Mike

-Gary
Get me a PDF diagram of the 808, and I'll get you a good answer.

For now I'm only 90% sure that I can.
post #55 of 470
sure what diagram do you need??( of what parts?? ) I have them all, give me a shout and I will have it up on my webspace in 2 shakes

-Gary
post #56 of 470
Quote:
Originally posted by Gary Murrell
sure what diagram do you need??( of what parts?? ) I have them all, give me a shout and I will have it up on my webspace in 2 shakes

-Gary
Check your PM!
post #57 of 470
Hi Mike,

So what did you find that causes the streaking, I'm curious, or is that confidential.

Thanks
post #58 of 470
I don't have the details of Mike's finding, but based on what he says on the other thread, we can easily guess it replace the poor performers VPH15 (on CAR, B & G board) by some equivalent chips. Looking at Sanyo production, the only one seems to be the VP201 (pin compatible 240Mhz BW). There is probably some caps updates around.

Last, mike talk about some "noise" in LVPS, may be something around it.

Mike, am I right ?

--Patrice ;)
post #59 of 470
Hi Mike:D

My business is in manufacturing of hard disk drive production testers. Let me know if I could be of some help. I am in the Silicon Valley in California, and am working on knowing the 1292 better, since I have 5 of them. I would definitely like to see the streaking fix, video noise fix, and also the loud fans fix. Thanks for working on the problems.

Stan Lin
post #60 of 470
Hi Mike,

Sent you a PM.

Dave
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