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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Oct 03, 2010 5:05 pm Post subject: |
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| mp20748 wrote: |
I'll be sending you the modified BA board next week. Even with that same gamma circuit, it should make a considerable difference over the stock board. We'll see. I only wish I could have redone that gamma circuit all together. |
I can't wait, you've been teasing me on that BA board for weeks now Mike  We can try again on the gamma circuit when you aren't burnt out anymore on the G90 mods. I tested the mods with the stock gamma chip and the noise was much lower and the bandwidth was better. What you came up with already is a nice improvement.
| mp20748 wrote: |
Now, only if I could figure out what all I've done to my 9500 that makes it get so bright. I had planned to make that happen, but has yet to do so. |
Right, I am going back to the client's who I installed your new VNB's and VIM into this week to install a new Moome internal. We need to talk about the few things you wanted me to try in order to get his projector to match yours in brightness without blooming. I know how to do the one HV tweak, but the G2 modification we need to talk about and I need to make sure I have the parts (I think I do).
I'll call you tomorrow.
craigr
_________________
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www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sun Oct 03, 2010 5:20 pm Post subject: |
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care to share some secrets??
_________________
1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Oct 03, 2010 6:25 pm Post subject: |
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| dvh99 wrote: | | care to share some secrets?? |
Well one thing Mike wants me to do is check the HVPS to make sure it is putting out 34.9 KV (34.9 on the Marquee right?) to be sure it has not drifted lower. The other thing is a G2 modification, but that is Mike's mod so if he wants to share it, it's up to him. I am not at liberty to divulge the secrets
The G90 mods have been something we have been working on for a long time now and the first version is finished. I just need to do final testing once Mike sends me the final hardware revision back to have a look at. We will be offering these mods soon.
I actually have a preliminary on another very awesome G90 mod that I stumbled on while repairing a YA board yesterday. I found a way to remove TONS (almost all) of the noise from the video chain. A lot of noise it turns out comes in from the YA through the OSD insertion. This mod should be pretty awesome...
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Sun Oct 03, 2010 6:47 pm Post subject: |
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| CIR Engineering wrote: |
I actually have a preliminary on another very awesome G90 mod that I stumbled on while repairing a YA board yesterday. I found a way to remove TONS (almost all) of the noise from the video chain. A lot of noise it turns out comes in from the YA through the OSD insertion. This mod should be pretty awesome...
craigr |
Wait, so now am I supposed to keep my G90? 
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sun Oct 03, 2010 7:36 pm Post subject: |
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i think mike did something similair as he has done on the marquee, bypassing the sd5401 on the vim.
there was a thread here some time ago that discussed that.
he also did something on the clm but what exactly, i have no clue.
_________________
1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sun Oct 03, 2010 8:09 pm Post subject: |
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when looking at the tube face with contrast lowered i very clearly see 1 on 1 off like black and white, it definitely is a focussing issue and not having a very good source like the radiance, rather then a bandwidth shortcoming.
edit: pixelclock 190mhz.
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Sun Oct 03, 2010 8:36 pm Post subject: |
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| dvh99 wrote: | when looking at the tube face with contrast lowered i very clearly see 1 on 1 off like black and white, it definitely is a focussing issue and not having a very good source like the radiance, rather then a bandwidth shortcoming.
edit: pixelclock 190mhz. |
Low contrast often resolves better... less rise and fall.
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Wed Oct 06, 2010 6:58 pm Post subject: |
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| dvh99 wrote: | i think mike did something similair as he has done on the marquee, bypassing the sd5401 on the vim.
there was a thread here some time ago that discussed that.
he also did something on the clm but what exactly, i have no clue. |
I think the question was on the G2 thing I do that Craig mentioned. I usually don't revel these things, but if you're up for figuring things out yourself, I'll help you out by posting a few pictures. From there, you do your thing.
Clue: 100uh
Side by side HVPS's... One on the left: 10-000310-02P Issue 3 - Right: 10-000310-01P Issue 3
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10-000310-01P Issue 3
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10-000310-02P Issue 3
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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Thu Oct 07, 2010 12:08 am Post subject: |
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i have the 02p hvps but with the wirewound resistors for 21-22 etcetera btw, is that again another issue hvps.
edit: thanks 
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Thu Oct 07, 2010 11:28 pm Post subject: |
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| dvh99 wrote: |
i have the 02p hvps but with the wirewound resistors for 21-22 etcetera btw, is that again another issue hvps.
edit: thanks |
I also have an 02P HVPS that has... I think they're ceramic resistors. I have them in mine to.
The G2 supply is very noisy. And if you think that noise does not get into the image, believe me, it does.
In fact, In speaking to Craig today on the phone, he had also replaced the inductors in his customers Magrigal MP9. he told me that he noticed a cleaner image afterwards.
I had also asked him to measure the HV coming out of the HVPS. He told me it measured 35.5KV. I asked him to measure the Hv and let me know what it read. I asked that because a lot of the HVPS will drift above 34.9kv. When that happens and depending on high much higher it reads above 34.9KV, it will most likely cause premature blooming when the contrast is increased.
The closer to 34.9kv the better the control you'll have on blooming. I know that small difference seems minor, but it's not.
My LVPS (of course) is right on the money..
Concerning the G2 supply, the shots below shows what the HVPS in my 9500 looks like on the inside.
I've added 3 inductors and 7 ferrite beads - which helps me get a very clean image..
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skypuppy
Joined: 20 Sep 2007
Posts: 61
Location: Alabama, USA
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| Posted: Fri Nov 26, 2010 2:28 am Post subject: |
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warning: possible thread hijack
How do you guys measure ac(?) voltages above 1kv? My meter only goes to 1 and I can seem to find one that goes to 40 or 50 kv. We tried the jury-rigged setup found on the web but it didn't work at all.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Fri Nov 26, 2010 2:57 am Post subject: |
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| skypuppy wrote: | warning: possible thread hijack
How do you guys measure ac(?) voltages above 1kv? My meter only goes to 1 and I can seem to find one that goes to 40 or 50 kv. We tried the jury-rigged setup found on the web but it didn't work at all. |
I think you need a special HV probe for the meter. then you multiply the voltage read to make it into KV's.
I remember looking and they are sometimes as much in cost as the Fluke Meter!
Athanasios
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Marquee Modifications and Performance Enhancement
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km987654
Joined: 25 Jul 2007
Posts: 2874
Location: Australia
TV/Projector: Barco BG809s
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| Posted: Fri Nov 26, 2010 3:34 am Post subject: |
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| Nashou66 wrote: | | skypuppy wrote: | warning: possible thread hijack
How do you guys measure ac(?) voltages above 1kv? My meter only goes to 1 and I can seem to find one that goes to 40 or 50 kv. We tried the jury-rigged setup found on the web but it didn't work at all. |
I think you need a special HV probe for the meter. then you multiply the voltage read to make it into KV's.
I remember looking and they are sometimes as much in cost as the Fluke Meter!
Athanasios |
Thats right. You need a HV probe which you attach to your meter. You measure the HV as multiples of any scale on your meter.
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Nov 26, 2010 2:24 pm Post subject: |
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| skypuppy wrote: | warning: possible thread hijack
How do you guys measure ac(?) voltages above 1kv? My meter only goes to 1 and I can seem to find one that goes to 40 or 50 kv. We tried the jury-rigged setup found on the web but it didn't work at all. |
I use one similar to this:
http://www.mcmelectronics.com/product/72-3040
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Fri Nov 26, 2010 3:13 pm Post subject: |
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My Marquee Fluke probe. Plugs right into my Fluke 83
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Nov 26, 2010 7:54 pm Post subject: |
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Just to remind everyone...
Read the instructions that come with your HV probe. This is no joke and there is no room for error. Measuring the voltage on a running projector is dangerous. 35,000 volts on a running projector can potentially kill you.
Only hold the HV probe with one hand (preferably the right) and keep the opposite hand behind your back or in your pocket. If you accidentally ground the opposite hand and get hit with HV, it will go straight through your heart. If your feet are the ground and you accidentally get hit you won't take it all in the heart that way.
Be careful!
craigr
_________________
JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
Light Illusion ColourSpace XPT Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
OMARDRIS JVC Software Patch to use K10-A and Jeti with JVC OEM AutoCal Software!
Sencore CR7000 CRT Tube Analyzer / Rejuvenater
Authorized Dealer for Lumagen & just about everything worth buying
www.CIR-Engineering.com - craigr@cir-engineering.com
Phone: 865-405-6892
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skypuppy
Joined: 20 Sep 2007
Posts: 61
Location: Alabama, USA
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| Posted: Fri Nov 26, 2010 11:30 pm Post subject: |
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Our hv units are dc? The probe in your link only goes to 28kv ac but 40kv dc. I thought our hv units were ac. Live and learn!
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Fri Nov 26, 2010 11:38 pm Post subject: |
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No, all of them are DC.
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