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FAQ |
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The GP's display is dark. |
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Possible causes and solutions
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1. |
Adjustment of Brightness and Contrast |
You can adjust brightness and contrast (tone) with the GP main unit.
However, you can not adjust depending on the models of GP
-> How to adjust Brightness and Contrast : Click here
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2. |
Deterioration in Backlight |
Backlights are expendable. As using for long, the display will be getting bim-lit. In this case, please change the backlights.
However, EL Liquid Cristal Types (GP477R/GP470) do not equip backlights. They will require to be changed by the repair center of Digital Elecroninc Corporation. |
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Models supporting Adjustment of Brightness and Contrast
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Models supporting Adjustment of Brightness
ST Series |
All Models (2 Levels of adjustment is available) |
GP2000 Series |
All Models (4 Levels of adjustment is available) |
GP77R Series |
All Models (477RE/2 Levels of adjustment, Other 77R Series/4 Levels of adjustment is available) |
GP70 Series |
470E only/2 Levels of adjustment is available.
Other 70 Series / Adjustment is not available. |
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Models supporting Adjustment of Contrast
Only Color STN Panels and Monochrome STN Panels are available. |
ST Series |
All Models (8 Levels of adjustment is available) |
GP2000 Series |
2501S、2301S、2301HS(8 Levels of adjustment is available) |
GP77R Series |
577RS、377S、377L(8 Levels of adjustment is available) |
GP70 Series |
570S、675S、270S、270L、370S、370L、H70S、H70L
(8 Levels of adjustment is available) |
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Backlight Service Life
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Period until Backlight Brightness decrease to 50 % or Backlight starts to flicker |
Backlight Service Life |
GP Models |
50,000 hrs. |
ST Series |
GP2000 Series |
GP377RT |
GP675‐TC41-24VP |
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40,000 hrs. |
GP577RT |
GP577RS |
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GP570-TC21-24VP
(RevE*8) |
GP570-SC21-24VP
(RevE*8) |
EXGP-577R |
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30,000 hrs. |
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25,000 hrs. |
GP870-PV11 |
GP675-TC11 |
GP675‐SC11 |
GP571-TC11 |
GP570-TC21-24VP |
GP570-TC31-24V |
GP570-SC21-24V |
GP570‐SC31-24V |
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GP370-SC21-24VP |
GP370-SC41-24VP |
GP370-LG21-24VP |
GP370-LG41-24VP |
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GP270-SC21-24VP |
GP270-SC31-24VP |
GP270-LG21-24VP |
GP270-LG31-24V |
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GPH70-SC11-24V |
GPH70-SC41-24VP |
GPH70-LG11-24V |
GPH70-LG41-24VP |
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EXGP-570T |
EXGP-570JS |
GP37W2B |
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20,000 hrs. |
GP570-TC11 |
GP570-SC11 |
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GP370-SC11-24V |
GP370-LG11-24V |
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GP270-SC11-24V |
GP270-LG11-24V |
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No Backlight
70,000 hrs. (70% of Brightness) |
GP477REG11 |
GP477R-EG41-24VP |
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GP470-EG11 |
GP470-EG21-24VP |
GP470-EG31-24V |
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