Tom.W
Established Member
Plus a few good links.... 
For anyone that is new to CRT projectors there are POTENTIALLY LETHAL HIGH VOLTAGE components installed under the hood ! When in doubt do NOTHING !!!
CRT disclaimer....................
Every disclaimer in the book, I guess.
CRT primer/faq, Thanks to both Curt and Moe !
CRT Projector Primer/FAQ | Moe's Home Theater
CRT tube faq...
TV and Monitor CRT (Picture Tube) Information
Barco Reality 909 service manual plus extras...
Will not last long but about a 49 Mb zip file. Download it now if you need it ! Thanks to Russ !
http://members.iinet.net.au/~calibrator/Barco_Stuff/BR909_Manuals.zip
Barco Reality 909 board layout
http://home.arcor.de/thomasfetzer/R909_parts.pdf
How to remove the SEMU module from a Barco 909
Thanks Roland...
http://www.avforums.com/forums/crt-projectors/1032215-how-remove-semu-barco-909-cine-9-a.html
Connects pins 1+2, 3+4, 5+6
This plgs into J5 on the RGB Driver board R762705 after the semu is removed
I must assume that these are in and out for the SEMU. and that whilst the active part of the circuit is disabled the video is still going through a torturous route and about 6 connectors to and from the SEMU Card which can't be good.
All I have to do now is soak test the projector because don't forget I only think it is the SEMU unit that is loosing me a color.
Barco Graphics 1208s 208mb -Service manual PDF (Download with option 2 - File factory basic)
-- FileFactory.com - free file hosting --
Barco Graphics 1209s 46mb PDF-Service manual
1209s-Service.pdf
Barco FAQ
http://www.avforums.com/forums/crt-projectors/757690-barco-faq.html
Barco service bulletin and not just for the Seo's modified units !
http://www.curtpalme.com/docs/Barco_FSB04_SMPU_Capacitor_Upgrade.pdf
Barco initial setup by Crteaman.....Thanks James !
Barco Setup: Quick Reference Guide
Several Barco user manuals..
Projector.com Barco Video Projector User Manuals Specifications
Barco EHT/Quadrupler/Splitter service bulletin
http://www.curtpalme.com/docs/BarcoServiceBulletin_R762716_New_EHT.pdf
Barco Data 808 159mb PDF-Service manua
Barco_Data_808_service_manual.pdf - download now for free. File sharing. Software file sharing. Free file hosting. File upload. FileFactory.com
Barco_Data_808_service_manual.pdf -- FileFactory.com - free file hosting --
Replacing Barco 808s Sony CRT's
http://www.curtpalme.com/docs/BarcoGraphics808s_CRTReplacementProcedure.pdf
Swapping 8 inch tubes in Barco's
What tubes will go in a BG808?
Barco 800 series manual link- Includes the Service manual
BARCO DATA 800 REFERENCE WEBSITE by Lynxxx
Barco 800 RCVDS switcher user manual.Click on free user...
http://rapidshare.com/files/324963779/RCVDS800-O.pdf
BG800 2SK511 neck board FET's
BARCO DATA 800 REFERENCE WEBSITE by Lynxxx
Barco control software in DOS-PDF
http://www.cineversum.com/downloads/tde/BSP/Manuals/UserGuide/R5975014_04_userguide.pdf
Link to Barco user manuals.
http://www.devicemanuals.com/company/Barco-manuals.html
Barco remote control codes..
RC: Infrared Hex Code Database: Barco Barco 800 Series (Address... Commands (Page 1)
Barco Iris 3 Manual
http://www.cineversum.com/downloads/tde/BCI/Technical/Adjustments/R5975299_00_Adjustment.pdf
Barco Excel cross reference sheets can be found here...
Barco 500/800/801 Tips and Manuals
More Barco 808 links...
Barco 808/Cine8 Tips and Manuals[/url
Barco 500-800 series cross reference sheet on board numbers...
http://www.crtinfo.us.vu/5c8c.html
Barco Vision Cross Reference Spreadsheet 0.2mb
Barco Data Cross Reference Spreadsheet 0.2mb
Barco Graphics Cross Reference Spreadsheet
Barco convergence on Green module
[url]http://www.curtpalme.com/docs/BarcoConvergenceOnGreen_Install.pdf
Nec PG xtra zip file 36mb - Service manual
filecrunch.com
NEC projector stuff...
NEC CRT Projector Index
NEC XG135 tube replacment.
NEC XG 1350 Tube Replacement
NEC XG G2 calibration guide by Guy Kuo
NEC XG G2 Calibration Procedure
Zenith 900 service manual ( Thanks Curt )
http://www.curtpalme.com/docs/Zenith900_Service.pdf
Sony 10XX service manual and info..
Sony 10xx Tips and Manuals
Sony 1031Q setup guide...
Boyz Toyz 1031Q Setup Guide
Sony 125X / 127x service manual and info.
Sony 125x/127x Tips and Manuals
Sony 1272 link-Service manual PDF
http://crtforum.com/1272-service-manual.pdf
Sony VPH 1292. Service manual link part 1. 115mb file
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_VPH1292/SM1292_01.pdf
Part 2
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_VPH1292/SM1292_02.pdf
The Sony G-70 118mb Service manual PDF can be found here... ( Please make a contribution to Moe's site ! )
Moe's Home Theater: Sony VPH-G70 CRT Projector
Instructions for replacing CRT's in a G-70 ( Please contribute if you can to Moe's site to keep up his good work ! )
Moe's Home Theater: Sony G70 Tube Replacement Instructions
Sony VPH G-90 -service manual link and theory of operation (Thanks John ! )
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_G90/VPHG90_Service_Manual.pdf
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_G90/VPH-G90x_Theory_of_operation.pdf
Sony G90 serial protocol...
http://www.biggerhammer.net/mediaroom/d50_g70_g90/vph-g90_serial.pdf
Sony G90 serial communication setup exe program...Thanks Curt !
Sony G90 Tips and Manuals
Instructions for replacing CRTs in a G-90 ( Thanks again to John )
Sony VPH-G90 tubes(s) replacement with new bare(s) tube(s) step by step procedure - AVS Forum
Link to AmPro manuals
File Area
Dion Swamps great AmPro site..
The Ampro Esprit 4200G and needed modifications.
Setting G2 on a Marquee...
http://81.167.6.229/Public/CRT-Projectors/Electrohome/marquee_g2_v1.3.pdf
Marquee LC replacement bellows
Marquee High Performance Bellows
Steve's Marquee fan modification.... Thanks Steve !
http://www.avforums.com/forums/crt-projectors/511561-marquee-rear-heatsink-modification.html
Marquee modification thread....
Marquee Modifications and Performance Enhancement
Has your Marquee lost its memory ? Read this...
Inside a Renata 3v Battery Module ( Marquee )
Electrohome service manual link ( 8500-9500 LC )
Service Manual
Marquee circuit board removal..
http://www.curtpalme.com/docs/MarqueeBoardRemoval.pdf
Thanks guys !
Marquee modification thread...
Marquee Modifications and Performance Enhancement
Marquee schematics...
New Page 1
Marquee technical bulletins link.
Welcome To Hi Rez, Vidikron, Runco, Plasma, Sony, NEC, Zenith, LCD and CRT Projectors, DILA, Madrigal, Blake Aerials, Electrohome
Steve's marquee 9500 LC mod...Thanks Steve !
http://www.avforums.com/forums/crt-projectors/511561-marquee-rear-heatsink-modification.html
Bill Blue Marquee setup link...
http://www.curtpalme.com/docs/MARQUEE MAGNETICS SETUP 101 by Bill Blue.pdf
Fixing up that old Marquee... Thanks guys for all your input. Some GREAT advise !!!
http://www.avforums.com/forums/crt-projectors/953486-marquee-getting-old-failing.html
Electrohome service bulletins ( You should probably read these if you own one )
Welcome To Hi Rez, Vidikron, Runco, Plasma, Sony, NEC, Zenith, LCD and CRT Projectors, DILA, Madrigal, Blake Aerials, Electrohome
Marquee set up hints...
ETech :: The Number One Source for Projector Sales, Information, and Technical Tips
Marquee Tech tips link ( Thanks Tim !)
ETech :: The Number One Source for Projector Sales, Information, and Technical Tips
Great list of user and setup manuals for many projectors with download links...
Projector Specifications Australia
Electron beam control and CRTs
http://celco-nj.com/SID_Paper01.htm
Where do I buy marquee bellows ?
FAQ: High Performance Bellows for Marquees and clones
Microperf screens....
http://www.stewartfilmscreen.com/co..._screens/wp_perforated_screens_commercial.pdf
CRT coolant... Nice formulation.
http://www.nteinc.com/techspray/new...ection CRT TV Coolant | Techspray | 1915-16SQ
Tinting glycol..
Tinting Glycol
Dwin user and setup manuals...
HDP-500 http://dwin.com/files/manual_hdp500.pdf
HD-700 http://dwin.com/files/manual_hd700.pdf
Nice CRT projector lift if you can find one used !
http://downloads.chiefmfg.com/MANUALS-I/EVCM100-I.pdf
Link to Chief projector mounts.....
http://downloads.chiefmfg.com/MANUALS-I/
Info on CRT tubes...
http://www.repairfaq.org/sam/crtfaq.htm
Guy Kuo's excellent CRT guide on focus and mechanical aim basics-A MUST READ ! ( Thanks Guy and Moe ! ]
Moe's Home Theater: How to Focus and Setup Your CRT Projector
Poor man's CRT focus for the blind thread ... ( Thanks to tse ! )
Poor man's Microvision or Focus for the Blind - AVS Forum Archive 2
CRT projection optics... Thanks tse
http://www.xymox1.com/Projector/crtpaper.pdf
The site sucks IMO but here are some free HD test patterns...
AVS HD 709 - Blu-ray, HD DVD, & MP4 Calibration - AVS Forum
Also see this.
MPEG-2 HD Test Patterns
More free HD test patterns..........
AVS HD 709 - Blu-ray, HD DVD, & MP4 Calibration - AVS Forum
Various service menu codes ...
TV Service Menu Codes
All about lenses...
All about lenses (specs/datasheets/pictures/etc.)
Cleaning lenses...
Guy Kuo
Dry air blown across the lens. If that isn't enough, William Phelps described his cleaning solution....
1 drop dishwashing detergent (not soap!)
(or Kodak Photoflo if you have it)
1/3 cup 99% Isopropyl alcohol
1 2/3 cup distilled water
It works very well indeed and does not harm the lens coatings. It's dirt cheap to make to boot. Cheap enough to use on your car windows. You won't believe what using an optical cleaner on a car window will achieve. Windex is residue city by comparison and should NOT be used on your projection lenses for fear of the ammonia dissolving the anti-reflection coating.
Don't get overzealous about cleaning. Every time you clean the lens, you will create some minor scratches. In other words, clean when cleaning does more good than harm.
The above solution can be misted on and wiped off with a soft lint-free cleaning cloth. Use each portion of the cloth only one pass. Start at the center and work outword. You will need to lightly buff until dry or else there will be visible residue.
Another cleaning product I very much like is Formula MC-1. I was turned onto this by Steve Smith. It leaves absolutely the cleanest lens surface I have ever seen. Use as a last step. Just a few drops do the job. The lens will appear to fog over as this dries. Buff the "fog" off and the lens will be cleaner than it ever has.
In either case, never never grind dirt back into the lens. Remove as much dust as possible with dry, compressed air. Very very lightly dust with a CLEAN soft brush. It is so easy to scratch the lens with a slightly soiled brush. Don't wipe a dirty lens while it is dry. Use a cleaning solution to loosen and lift the debris onto a clean soft lens cloth.
Be enthusiastic in throwing out multiple cleaning cloths. You're trying to preserve the lens, not the cloths.
HD-144 and HD-145 specs...
HD145 DESIGN CHARACTERISTICS
f/number - f/1.03 ± 7% at infinity
Focal Length - 135 mm ± 2%
CRT Raster Diagonal - 140 mm (5.5” maximum (3 x 4)
CRT Phosphor Surface - Flat
CRT Faceplate Thickness - Nominally designed for 16.5mm faceplate
thickness. If thinner faceplates are used, it may be possible to compensate the lens for reduced thickness.
Screen Type - Designed for flat screen
Magnification - Approximately 10X to 60X
Standard Coupling - The lens can be air-coupled to a liquid cooled CRT with the same mounting configurations as our DELTA® TAC4 lens.
Resolution - MTF over 50% at 10 line pairs/mm (approximately 20mHz)
throughout the field
Transmission - Nominal transmission at 550nm is better than 84%
Color Correction - Fully color corrected
Relative Illumination - Approximately 34% at 92% of 5” field
Distortion - Less than 2% (pin cushion)
HD-144
Focal length - 127.33mm
f/no at infinity : 1.125
Raster heigth : 60.11
Optical characteristics (All dimensions from phosphor surface)
Entrance pupil position : 73.9 Diameter 64.22
Exit pupil position : 155.2 Diameter 112.90
Principle points : PP1=128.83 PP2=251.77
This info from the Evil Twin site
All about CRT tubes.
TV and Monitor CRT (Picture Tube) Information
Bleeding excess glycol pressure in liquid cooled CRT's...Thanks Curt .
Bleeding CRT Projector Tubes
Sencore CR-7000 CRT restorer...
http://repairfaq.cis.upenn.edu/sam/reppic/sencrt.pdf
http://www.sencore.com/uploads/files/CR7000brochure.pdf
C elements. What they do and who owns the patents,
Lens systems for projection televisions - Google Patents
How to install a new c element.....
c-element
Removing fungus from CRT ...Thanks Curt
Defungusing Sony Tubes Using CLR
And this on youtube......
YouTube - CRT Fungus Removal
Link to Sanyo video amp data sheets...
SANYO datasheet pdf catalog
Video bit rate calculator.
Video bitrate calculator | web.forret.com
Fan noise solutions...
Fan Noise Solutions
Ground loop problems and symptoms...
Ground loop problems and how to get rid of them
Good article on choosing HDMI cables..
Long HDMI Cable Bench Tests - Monster Cable Shootout — Reviews and News from Audioholics
Getting proper Black levels on your display.
HDMI Enhanced Black Levels, xvYCC and RGB — Reviews and News from Audioholics
A good read on THX...
Feature Article
How loud is too loud to prevent hearing loss.......
loud music and hearing damage - abelard
Rat shack SPL meters...
SVSound - FAQs - Pressure Meter
More P19LUG info...Thanks tse !
P19 CRT pin out PDF
For anyone that is new to CRT projectors there are POTENTIALLY LETHAL HIGH VOLTAGE components installed under the hood ! When in doubt do NOTHING !!!
CRT disclaimer....................
Every disclaimer in the book, I guess.
CRT primer/faq, Thanks to both Curt and Moe !
CRT Projector Primer/FAQ | Moe's Home Theater
CRT tube faq...
TV and Monitor CRT (Picture Tube) Information
Barco Reality 909 service manual plus extras...
Will not last long but about a 49 Mb zip file. Download it now if you need it ! Thanks to Russ !
http://members.iinet.net.au/~calibrator/Barco_Stuff/BR909_Manuals.zip
Barco Reality 909 board layout
http://home.arcor.de/thomasfetzer/R909_parts.pdf
How to remove the SEMU module from a Barco 909
Thanks Roland...
http://www.avforums.com/forums/crt-projectors/1032215-how-remove-semu-barco-909-cine-9-a.html
Connects pins 1+2, 3+4, 5+6
This plgs into J5 on the RGB Driver board R762705 after the semu is removed
I must assume that these are in and out for the SEMU. and that whilst the active part of the circuit is disabled the video is still going through a torturous route and about 6 connectors to and from the SEMU Card which can't be good.
All I have to do now is soak test the projector because don't forget I only think it is the SEMU unit that is loosing me a color.
Barco Graphics 1208s 208mb -Service manual PDF (Download with option 2 - File factory basic)
-- FileFactory.com - free file hosting --
Barco Graphics 1209s 46mb PDF-Service manual
1209s-Service.pdf
Barco FAQ
http://www.avforums.com/forums/crt-projectors/757690-barco-faq.html
Barco service bulletin and not just for the Seo's modified units !
http://www.curtpalme.com/docs/Barco_FSB04_SMPU_Capacitor_Upgrade.pdf
Barco initial setup by Crteaman.....Thanks James !
Barco Setup: Quick Reference Guide
Several Barco user manuals..
Projector.com Barco Video Projector User Manuals Specifications
Barco EHT/Quadrupler/Splitter service bulletin
http://www.curtpalme.com/docs/BarcoServiceBulletin_R762716_New_EHT.pdf
Barco Data 808 159mb PDF-Service manua
Barco_Data_808_service_manual.pdf - download now for free. File sharing. Software file sharing. Free file hosting. File upload. FileFactory.com
Barco_Data_808_service_manual.pdf -- FileFactory.com - free file hosting --
Replacing Barco 808s Sony CRT's
http://www.curtpalme.com/docs/BarcoGraphics808s_CRTReplacementProcedure.pdf
Swapping 8 inch tubes in Barco's
What tubes will go in a BG808?
Barco 800 series manual link- Includes the Service manual
BARCO DATA 800 REFERENCE WEBSITE by Lynxxx
Barco 800 RCVDS switcher user manual.Click on free user...
http://rapidshare.com/files/324963779/RCVDS800-O.pdf
BG800 2SK511 neck board FET's
BARCO DATA 800 REFERENCE WEBSITE by Lynxxx
Barco control software in DOS-PDF
http://www.cineversum.com/downloads/tde/BSP/Manuals/UserGuide/R5975014_04_userguide.pdf
Link to Barco user manuals.
http://www.devicemanuals.com/company/Barco-manuals.html
Barco remote control codes..
RC: Infrared Hex Code Database: Barco Barco 800 Series (Address... Commands (Page 1)
Barco Iris 3 Manual
http://www.cineversum.com/downloads/tde/BCI/Technical/Adjustments/R5975299_00_Adjustment.pdf
Barco Excel cross reference sheets can be found here...
Barco 500/800/801 Tips and Manuals
More Barco 808 links...
Barco 808/Cine8 Tips and Manuals[/url
Barco 500-800 series cross reference sheet on board numbers...
http://www.crtinfo.us.vu/5c8c.html
Barco Vision Cross Reference Spreadsheet 0.2mb
Barco Data Cross Reference Spreadsheet 0.2mb
Barco Graphics Cross Reference Spreadsheet
Barco convergence on Green module
[url]http://www.curtpalme.com/docs/BarcoConvergenceOnGreen_Install.pdf
Nec PG xtra zip file 36mb - Service manual
filecrunch.com
NEC projector stuff...
NEC CRT Projector Index
NEC XG135 tube replacment.
NEC XG 1350 Tube Replacement
NEC XG G2 calibration guide by Guy Kuo
NEC XG G2 Calibration Procedure
Zenith 900 service manual ( Thanks Curt
)http://www.curtpalme.com/docs/Zenith900_Service.pdf
Sony 10XX service manual and info..
Sony 10xx Tips and Manuals
Sony 1031Q setup guide...
Boyz Toyz 1031Q Setup Guide
Sony 125X / 127x service manual and info.
Sony 125x/127x Tips and Manuals
Sony 1272 link-Service manual PDF
http://crtforum.com/1272-service-manual.pdf
Sony VPH 1292. Service manual link part 1. 115mb file
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_VPH1292/SM1292_01.pdf
Part 2
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_VPH1292/SM1292_02.pdf
The Sony G-70 118mb Service manual PDF can be found here... ( Please make a contribution to Moe's site ! )
Moe's Home Theater: Sony VPH-G70 CRT Projector
Instructions for replacing CRT's in a G-70 ( Please contribute if you can to Moe's site to keep up his good work ! )
Moe's Home Theater: Sony G70 Tube Replacement Instructions
Sony VPH G-90 -service manual link and theory of operation (Thanks John ! )
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_G90/VPHG90_Service_Manual.pdf
http://static.nikita.cx/hthifi/JohnHWman/Service_manual_G90/VPH-G90x_Theory_of_operation.pdf
Sony G90 serial protocol...
http://www.biggerhammer.net/mediaroom/d50_g70_g90/vph-g90_serial.pdf
Sony G90 serial communication setup exe program...Thanks Curt !
Sony G90 Tips and Manuals
Instructions for replacing CRTs in a G-90 ( Thanks again to John )
Sony VPH-G90 tubes(s) replacement with new bare(s) tube(s) step by step procedure - AVS Forum
Link to AmPro manuals
File Area
Dion Swamps great AmPro site..
The Ampro Esprit 4200G and needed modifications.
Setting G2 on a Marquee...
http://81.167.6.229/Public/CRT-Projectors/Electrohome/marquee_g2_v1.3.pdf
Marquee LC replacement bellows
Marquee High Performance Bellows
Steve's Marquee fan modification.... Thanks Steve !
http://www.avforums.com/forums/crt-projectors/511561-marquee-rear-heatsink-modification.html
Marquee modification thread....
Marquee Modifications and Performance Enhancement
Has your Marquee lost its memory ? Read this...
Inside a Renata 3v Battery Module ( Marquee )
Electrohome service manual link ( 8500-9500 LC )
Service Manual
Marquee circuit board removal..
http://www.curtpalme.com/docs/MarqueeBoardRemoval.pdf
Thanks guys !
Marquee modification thread...
Marquee Modifications and Performance Enhancement
Marquee schematics...
New Page 1
Marquee technical bulletins link.
Welcome To Hi Rez, Vidikron, Runco, Plasma, Sony, NEC, Zenith, LCD and CRT Projectors, DILA, Madrigal, Blake Aerials, Electrohome
Steve's marquee 9500 LC mod...Thanks Steve !
http://www.avforums.com/forums/crt-projectors/511561-marquee-rear-heatsink-modification.html
Bill Blue Marquee setup link...
http://www.curtpalme.com/docs/MARQUEE MAGNETICS SETUP 101 by Bill Blue.pdf
Fixing up that old Marquee... Thanks guys for all your input. Some GREAT advise !!!
http://www.avforums.com/forums/crt-projectors/953486-marquee-getting-old-failing.html
Electrohome service bulletins ( You should probably read these if you own one )
Welcome To Hi Rez, Vidikron, Runco, Plasma, Sony, NEC, Zenith, LCD and CRT Projectors, DILA, Madrigal, Blake Aerials, Electrohome
Marquee set up hints...
ETech :: The Number One Source for Projector Sales, Information, and Technical Tips
Marquee Tech tips link ( Thanks Tim !)
ETech :: The Number One Source for Projector Sales, Information, and Technical Tips
Great list of user and setup manuals for many projectors with download links...
Projector Specifications Australia
Electron beam control and CRTs
http://celco-nj.com/SID_Paper01.htm
Where do I buy marquee bellows ?
FAQ: High Performance Bellows for Marquees and clones
Microperf screens....
http://www.stewartfilmscreen.com/co..._screens/wp_perforated_screens_commercial.pdf
CRT coolant... Nice formulation.
http://www.nteinc.com/techspray/new...ection CRT TV Coolant | Techspray | 1915-16SQ
Tinting glycol..
Tinting Glycol
Dwin user and setup manuals...
HDP-500 http://dwin.com/files/manual_hdp500.pdf
HD-700 http://dwin.com/files/manual_hd700.pdf
Nice CRT projector lift if you can find one used !
http://downloads.chiefmfg.com/MANUALS-I/EVCM100-I.pdf
Link to Chief projector mounts.....
http://downloads.chiefmfg.com/MANUALS-I/
Info on CRT tubes...
http://www.repairfaq.org/sam/crtfaq.htm
Guy Kuo's excellent CRT guide on focus and mechanical aim basics-A MUST READ ! ( Thanks Guy and Moe ! ]
Moe's Home Theater: How to Focus and Setup Your CRT Projector
Poor man's CRT focus for the blind thread ... ( Thanks to tse ! )
Poor man's Microvision or Focus for the Blind - AVS Forum Archive 2
CRT projection optics... Thanks tse
http://www.xymox1.com/Projector/crtpaper.pdf
The site sucks IMO but here are some free HD test patterns...
AVS HD 709 - Blu-ray, HD DVD, & MP4 Calibration - AVS Forum
Also see this.
MPEG-2 HD Test Patterns
More free HD test patterns..........
AVS HD 709 - Blu-ray, HD DVD, & MP4 Calibration - AVS Forum
Various service menu codes ...
TV Service Menu Codes
All about lenses...
All about lenses (specs/datasheets/pictures/etc.)
Cleaning lenses...
Guy Kuo
Dry air blown across the lens. If that isn't enough, William Phelps described his cleaning solution....
1 drop dishwashing detergent (not soap!)
(or Kodak Photoflo if you have it)
1/3 cup 99% Isopropyl alcohol
1 2/3 cup distilled water
It works very well indeed and does not harm the lens coatings. It's dirt cheap to make to boot. Cheap enough to use on your car windows. You won't believe what using an optical cleaner on a car window will achieve. Windex is residue city by comparison and should NOT be used on your projection lenses for fear of the ammonia dissolving the anti-reflection coating.
Don't get overzealous about cleaning. Every time you clean the lens, you will create some minor scratches. In other words, clean when cleaning does more good than harm.
The above solution can be misted on and wiped off with a soft lint-free cleaning cloth. Use each portion of the cloth only one pass. Start at the center and work outword. You will need to lightly buff until dry or else there will be visible residue.
Another cleaning product I very much like is Formula MC-1. I was turned onto this by Steve Smith. It leaves absolutely the cleanest lens surface I have ever seen. Use as a last step. Just a few drops do the job. The lens will appear to fog over as this dries. Buff the "fog" off and the lens will be cleaner than it ever has.
In either case, never never grind dirt back into the lens. Remove as much dust as possible with dry, compressed air. Very very lightly dust with a CLEAN soft brush. It is so easy to scratch the lens with a slightly soiled brush. Don't wipe a dirty lens while it is dry. Use a cleaning solution to loosen and lift the debris onto a clean soft lens cloth.
Be enthusiastic in throwing out multiple cleaning cloths. You're trying to preserve the lens, not the cloths.
HD-144 and HD-145 specs...
HD145 DESIGN CHARACTERISTICS
f/number - f/1.03 ± 7% at infinity
Focal Length - 135 mm ± 2%
CRT Raster Diagonal - 140 mm (5.5”
maximum (3 x 4)CRT Phosphor Surface - Flat
CRT Faceplate Thickness - Nominally designed for 16.5mm faceplate
thickness. If thinner faceplates are used, it may be possible to compensate the lens for reduced thickness.
Screen Type - Designed for flat screen
Magnification - Approximately 10X to 60X
Standard Coupling - The lens can be air-coupled to a liquid cooled CRT with the same mounting configurations as our DELTA® TAC4 lens.
Resolution - MTF over 50% at 10 line pairs/mm (approximately 20mHz)
throughout the field
Transmission - Nominal transmission at 550nm is better than 84%
Color Correction - Fully color corrected
Relative Illumination - Approximately 34% at 92% of 5” field
Distortion - Less than 2% (pin cushion)
HD-144
Focal length - 127.33mm
f/no at infinity : 1.125
Raster heigth : 60.11
Optical characteristics (All dimensions from phosphor surface)
Entrance pupil position : 73.9 Diameter 64.22
Exit pupil position : 155.2 Diameter 112.90
Principle points : PP1=128.83 PP2=251.77
This info from the Evil Twin site
All about CRT tubes.
TV and Monitor CRT (Picture Tube) Information
Bleeding excess glycol pressure in liquid cooled CRT's...Thanks Curt .
Bleeding CRT Projector Tubes
Sencore CR-7000 CRT restorer...
http://repairfaq.cis.upenn.edu/sam/reppic/sencrt.pdf
http://www.sencore.com/uploads/files/CR7000brochure.pdf
C elements. What they do and who owns the patents,
Lens systems for projection televisions - Google Patents
How to install a new c element.....
c-element
Removing fungus from CRT ...Thanks Curt
Defungusing Sony Tubes Using CLR
And this on youtube......
YouTube - CRT Fungus Removal
Link to Sanyo video amp data sheets...
SANYO datasheet pdf catalog
Video bit rate calculator.
Video bitrate calculator | web.forret.com
Fan noise solutions...
Fan Noise Solutions
Ground loop problems and symptoms...
Ground loop problems and how to get rid of them
Good article on choosing HDMI cables..
Long HDMI Cable Bench Tests - Monster Cable Shootout — Reviews and News from Audioholics
Getting proper Black levels on your display.
HDMI Enhanced Black Levels, xvYCC and RGB — Reviews and News from Audioholics
A good read on THX...
Feature Article
How loud is too loud to prevent hearing loss.......
loud music and hearing damage - abelard
Rat shack SPL meters...
SVSound - FAQs - Pressure Meter
More P19LUG info...Thanks tse !
P19 CRT pin out PDF
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