CurtPalme.com Home Theater Forum

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

Awright!! Way to go Ed!

I haven't gotten around to doing this mod because my problem pretty much went away with the Momitsu brightness change, and because I've been too busy playing with a new G70 lately. But I may get ambitious and do it before I sell the 8500. Thanks for the detailed pix!

Just to clarify: you originally said the LineFix ECO was NOT intended for the rectangular noise artifact I originally posted about. But that IS the artifact that went away when you did the ECO, right?

CZ Eddie · Joined: 23 Mar 2006 Posts: 1601 Location: Austin, TX

draganm · Joined: 08 Mar 2006 Posts: 8990 Location: Colorado

Gary if you remember the box and line were plain as day after you ran the Spyder thingy on my screen. Laughing

Well, I got rid of both with the following adjustments Projector Brightness - 40 / Theatre Tek Brightness -10 and Gamma +30 or so? I just watched LOTR 2 towers last night and FTB and shadow detail are both very good IMO.
Whatever happened with that G70? i'm guessing that since your talking about selling the 8500 you figured out the problem with the green tube?

CZ Eddie · Joined: 23 Mar 2006 Posts: 1601 Location: Austin, TX

Dragan, you had the same problem on your projector also?

garyfritz · Joined: 08 Apr 2006 Posts: 12088 Location: Fort Collins, CO

Honestly I didn't remember seeing the box/etc on Dragan's system -- the mind is the first thing to go -- but it musta been there. Dragan, sounds like you resolved it in a similar way to what I did: source brightness up, projector brightness down.

Haven't had much time to play with the G70. Got the new green tube in, and everything seems cool. Now I'm just learning my way around it. The 8500 is still in the HT (but no time to watch movies, sigh) until I decide if the G70 blows it away.

CZ Eddie · Joined: 23 Mar 2006 Posts: 1601 Location: Austin, TX

Guys,

I just replaced all the capacitors on my LVPS.

In addition to now being able to raise brightness levels without losing blacks as quickly, and also now having slightly cleaner tube faces, and *possibly* tighter focus (mebbe?), I can say that the image artifact mentioned in this thread is probably gone. I just spent five minutes looking for it and I can't find it at all right now.

So it could possibly be gone now, or just incredibly reduced, or something. But all in all, I am very satisfied with the time spent (a few hours) with replacing caps on this LVPS!

CZ Eddie · Joined: 23 Mar 2006 Posts: 1601 Location: Austin, TX

Well actually I left all the tiny 10uF's alone, so I didn't replace all the caps. But I did replace 21 of 'em. Circled below. And let me tell you that the bottom of the two 2200uF 25V's were cracked and nasty brown looking!!!!

tse · Joined: 03 May 2006 Posts: 1014 Location: Sweatbucket, Fl.

A short description of the LVPS contents. The PCB in the other cover is the PFC converter for drawing power from the AC mains in a clean, low harmonic manner. This is a nice reliable power supply.

Scott

CZ Eddie · Joined: 23 Mar 2006 Posts: 1601 Location: Austin, TX

Nice.. I've saved that pic to my M-Files! Smile

PaulB · Posted: Tue Sep 22, 2009 3:42 pm Post subject:

Sorry guys some clarification please. (Resurrecting from the dead but this is a good thread and my query relates directly to it). Line Fix bulletin refers - http://www.curtpalme.com/docs/ElectrohomeMarqueeTechnicalBulletin_LineFix.pdf

In Scott's attachment which details VDC's own internal fix (copy below - pre-dating the bulletin I think), it does not list the fix as being applicable to the -03 VIM. The actual official Tech Bulletin on the other hand states that the fix is for VIMs -02p through 05p, including the -03 VIM.

The -03 VIM layout is not the same as the 02 Vim so does the bulletin apply to it - if it does apply, presumably we still use the exact same connection points but I couldn't actually translate across the connection points shown in the TBF over to my 03 VIM - I think I found two of them but the third remains elusive to say the least!

03 VIM Layout

Thanks,

PaulB · Posted: Tue Oct 13, 2009 5:02 pm Post subject:

A bump for anyone who may have the answer to the query above Thumbs Up

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

Paul if you look at that linked file the 03 vim is not listed, they went back to the 02 vim layout so 04 and 05 are similar layots to 02 , so the 03p vim does not need the same TSB applied.

Athanasios

PaulB · Posted: Tue Oct 13, 2009 6:45 pm Post subject:

Aha!

Thanks Nash, I can put the soldering iron back in the drawer for now.