CurtPalme.com Home Theater Forum

stridsvognen · Guest

Motobias · Posted: Mon Nov 26, 2012 11:46 pm Post subject:

well if the caps were just all replaced by tantalum ones, that's ok Wink

tantalums have better specs than most other caps and do not fail that often.
the mods just look ugly and i'll make sure they are electrical safe...
the hot glue is my work, i just wanted them secured in place, so they won't short out against chassis ground or other components.

if i can't get lucky with it, first seller will have to live with the consequences and you guys can jump in queue for tubes or anything you think is worth having...

i forgot to mention that the set has high spec papst fans everywhere and is almost quiet but maintains a good airflow.

**Curt Palme** · Posted: Tue Nov 27, 2012 12:02 am Post subject:

Nah, I think you got a good deal overall. Even if you need to replace a board or two, they are relatively cheap and plentiful. Even though the green has a bit of wear, it's completely useable, and with the HDMI card and C elements, there's the value of what you paid for it right there.

Mike can chime in, but those are NOT his mods! I've seen lots of his work, and he wouldn't do that. Smile

I'm guessing the person that modded came to this site, looked at the Dragan mods, and said 'I can do this for cheaper'.

yes, indeed, he did! Very Happy

But 36Kv? It most likely won't affect the tubes, but if you have access to an HV probe, I would turn it down a bit. That's the left pot on the side of the HVPS as you look at it pulling it out (towards the front of the HVPS). I'm assuming that CW is turning it up, CCW is turning it down, but I've never had to play with that pot.

Motobias · Posted: Tue Nov 27, 2012 12:02 am Post subject:

sounds like mine somehow...

http://www.curtpalme.com/forum/viewtopic.php?p=254762#254762

Motobias · Posted: Tue Nov 27, 2012 12:09 am Post subject:

@curt
glad to hear that Smile

i am still a big fan of my xg135, although the green has slightly more wear that this one and it's only ac
...somehow like my barcos aswell, but as you know, they constantly give me headaches Mr. Green

i just want one projector to run and keep and maybe clear out a bit... thought the marquee is the one to grab
Embarassed

and i am already thankful for the experience on working on a marquee and understand its layout...
haven't touched a g70 or g90 but it's on the list... 909 doesn't really tease me, ist's just a big 808 and way to expensive Very Happy

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

I thinkt he Marquee will be fine once you figure out that garbled video issue. It was most likely from the glycol. I hope you figure it out. Some of the mods are actually not bad.

Id like to see the HVPS.

I bet he didn't know about the 33uf 700vdc Clarity caps they could have used instead of a bunch daisy chained together.

Hope you get it going though. Still a great deal, glycol problems are a bitch!!!

Nashou

Motobias · Posted: Tue Nov 27, 2012 3:20 pm Post subject:

it's alive !

i cleaned the lenses yesterday evening and prepared everything to go back in.
this morning i put everything back together and fired it up... wohoo Thumbs Up

connected laptop via hdmi on 1080p 59hz and it displayed without a problem.
convergence is rock solid and i just did a 5minute job on it.
couldn't be bothered with scheimpflug, astig, focus, etc... but i looks pretty damn good already !
i didn't take the hvps out, but i will do soon for a picture.
controllerboard aswell...i know you guys are craving for pictures of ugly mods Laughing

jbmeyer13 · Joined: 03 Dec 2010 Posts: 1135

Motobias · Posted: Tue Nov 27, 2012 3:26 pm Post subject:

more pictures...

i fixed the phase later Wink

i am projectiong on a piece of brown cardboard, which is not even plain.
distance at about 2,50m image width about 2,00m

stridsvognen · Guest

You did it.. Thumbs Up

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

All right she's up and Running!!!! Woo Hoo!! I think I am more excited than you are!!! Wink

But be careful with that tube that pushed out. I would still remove it from the housing, clean the old glycol out and
re pot it in place. Just adding more Silicon wont hold it for long.

Athanasios

Motobias · Posted: Tue Nov 27, 2012 4:58 pm Post subject:

i'll monitor the red tube for leaks and possible dislocation...so far it's all good !
checked the filament voltage aswell: 6,35V Thumbs Up

and more pictures for your pleasure Wink

controller board, power supply and the whole thing with case...

Motobias · Posted: Tue Nov 27, 2012 5:01 pm Post subject:

i wonder why whoever did all these mods, didn't replace the resistors !

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Looks like they followed Chris Stevens mod sheet. Those must be 1uf COG ceramic caps all over the place twisted together.

Can you take a picture of the soldered sides of those Film Caps in the HVPS. Looks like they might wired them wrong.

Athanasios

Motobias · Posted: Tue Nov 27, 2012 7:43 pm Post subject:

looks like they are all in parrallel !

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

How many for each Rail? looks like they might not have enough voltage if in Parallel.

Athanasios

Motobias · Posted: Tue Nov 27, 2012 8:33 pm Post subject:

not enough voltage ?!

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

Motobias · Posted: Tue Nov 27, 2012 9:48 pm Post subject:

parallel caps:
capacity increases, voltage stays the same
series caps:
i wouldn't do that at all Very Happy