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bluemoonhu
Joined: 16 Feb 2021
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 Link Posted: Wed Feb 17, 2021 3:04 am Post subject: Sony G90 has a strange phenomenon ！！&a |
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When no external signal is input, turn on my G90, and you can see the regression line of the blue tube, then, the blue tube becomes brighter and brighter, about 5 minutes later, it reaches the brightest， at the same time, the green tube and red tube are also bright, but they are not as bright as the blue tube.
When the signal is input, the scan regression line will disappear. In the first few minutes, the picture is normal and the black scene is normal。After a few minutes, the black scene will become bright and the contrast will drop, but the color is normal.
I don't know what went wrong? thank you!
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany
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| Link Posted: Thu Feb 18, 2021 2:50 pm Post subject: |
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This is a tough one. You might have a shorted tube (most likely blue). Youi may also have a bad PE board. You could have b bad neck board assembly...
One thing you should try is disabling the ABG in the service menu and see if you still have the problem. Turn it off while you have a true black before it has time to shift bad.
craigr
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bluemoonhu
Joined: 16 Feb 2021
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| Link Posted: Fri Feb 19, 2021 4:10 am Post subject: |
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Thank you ! craigr
The G90 can display image normally without color deviation and fault code，the ABG is always closed。
Can you find the most likely place to have a problem？
Thanks！
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany
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| Link Posted: Fri Feb 19, 2021 5:26 am Post subject: |
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| bluemoonhu wrote: | Thank you ! craigr
The G90 can display image normally without color deviation and fault code，the ABG is always closed。
Can you find the most likely place to have a problem？
Thanks！ |
Do you mean it works correctly with ABG turned off? If so the most likely cause would be the PE board or possibly the YA board. The PE board would be cost effective to replace, the YA board could be repaired.
craigr
_________________
*NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW 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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bluemoonhu
Joined: 16 Feb 2021
Posts: 229
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| Link Posted: Fri Feb 19, 2021 7:07 am Post subject: |
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| CIR Engineering wrote: | | bluemoonhu wrote: | Thank you ! craigr
The G90 can display image normally without color deviation and fault code，the ABG is always closed。
Can you find the most likely place to have a problem？
Thanks！ |
Do you mean it works correctly with ABG turned off? If so the most likely cause would be the PE board or possibly the YA board. The PE board would be cost effective to replace, the YA board could be repaired.
craigr |
No matter whether ABG is turned on or not, the machine can work, but when ABG is turned on, a bright line will appear on the top of the surface of tube.
Ye board had been replaced before, where can I get PE board?
Thanks!
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany
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| Link Posted: Fri Feb 19, 2021 2:06 pm Post subject: |
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| bluemoonhu wrote: | | CIR Engineering wrote: | | bluemoonhu wrote: | Thank you ! craigr
The G90 can display image normally without color deviation and fault code，the ABG is always closed。
Can you find the most likely place to have a problem？
Thanks！ |
Do you mean it works correctly with ABG turned off? If so the most likely cause would be the PE board or possibly the YA board. The PE board would be cost effective to replace, the YA board could be repaired.
craigr |
No matter whether ABG is turned on or not, the machine can work, but when ABG is turned on, a bright line will appear on the top of the surface of tube.
Ye board had been replaced before, where can I get PE board?
Thanks! |
OK that may be normal.
With ABG on the projector uses one solid line just above the top of the picture to measure for the ABG. It should turn the line off after 20 minutes. Does the line disappear after 20 minutes on its own?
If the line does not disappear after 20 minutes there is a problem. I can sell you a PE board. They are not expensive. Just email me if you need one.
craigr
_________________
*NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW 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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bluemoonhu
Joined: 16 Feb 2021
Posts: 229
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| Link Posted: Fri Feb 19, 2021 2:54 pm Post subject: |
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| CIR Engineering wrote: | | bluemoonhu wrote: | | CIR Engineering wrote: | | bluemoonhu wrote: | Thank you ! craigr
The G90 can display image normally without color deviation and fault code，the ABG is always closed。
Can you find the most likely place to have a problem？
Thanks！ |
Do you mean it works correctly with ABG turned off? If so the most likely cause would be the PE board or possibly the YA board. The PE board would be cost effective to replace, the YA board could be repaired.
craigr |
No matter whether ABG is turned on or not, the machine can work, but when ABG is turned on, a bright line will appear on the top of the surface of tube.
Ye board had been replaced before, where can I get PE board?
Thanks! |
OK that may be normal.
With ABG on the projector uses one solid line just above the top of the picture to measure for the ABG. It should turn the line off after 20 minutes. Does the line disappear after 20 minutes on its own?
If the line does not disappear after 20 minutes there is a problem. I can sell you a PE board. They are not expensive. Just email me if you need one.
craigr |
OK！
Thanks!
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bluemoonhu
Joined: 16 Feb 2021
Posts: 229
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| Link Posted: Fri Feb 19, 2021 3:22 pm Post subject: |
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About 20 minutes after ABG is turned on，the bright line on the top of the surface of tube disappears。The PE board need to be replaced?
Thanks!
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany
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| Link Posted: Fri Feb 19, 2021 4:21 pm Post subject: |
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Everything is functioning perfectly.
After the lines turns off (20 minutes) you can disable (turn off ABG) in the service menu permanently if the line is bothering you. Just turn it back on once a year or so and let it run 20 minutes until it turns off. This will recalibrate the G2's.
craigr
_________________
*NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW 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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bluemoonhu
Joined: 16 Feb 2021
Posts: 229
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| Link Posted: Fri Feb 19, 2021 11:36 pm Post subject: |
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| CIR Engineering wrote: | Everything is functioning perfectly.
After the lines turns off (20 minutes) you can disable (turn off ABG) in the service menu permanently if the line is bothering you. Just turn it back on once a year or so and let it run 20 minutes until it turns off. This will recalibrate the G2's.
craigr |
Very good!
Thank you!!!
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bluemoonhu
Joined: 16 Feb 2021
Posts: 229
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| Link Posted: Sat Feb 20, 2021 2:06 pm Post subject: |
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Thank you !!! craigr
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4264
Location: Chicago USA & Berlin Germany
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| Link Posted: Sat Feb 20, 2021 2:41 pm Post subject: |
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| bluemoonhu wrote: | | Thank you !!! craigr |
_________________
*NEW JETI 1501-HiRes 2nm Spectroradiometer
JETI 1211 Spectroradiometer
Photo Research PR-650 Spectroradiometer
Klein K10-A Colorimeter
X-Rite i1Pro2 Spectroradiometer & Spyder Colorimeters *For JVC auto-calibration when Klein & Jeti are not applicable
Murideo Fresco SIX-G HDMI 2.x Multimedia Generator
Murideo Fresco SIX-A HDMI 2.x Analyzer
*NEW Light Illusion ColourSpace XPT Version β Color Calibration Software
Light Illusion LightSpace XPT Pro Version 10.x Color Calibration Software
*NEW 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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