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<| FAQ |
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| Display of GP is dim-lit. |
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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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