08-14-2010, 02:03 AM
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#1 |
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Sony Reader
 
Posts: 19
Karma: 10
Join Date: May 2010
Device: PRS-300 and PRS-505
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Adjusting VCOM voltage to fix fading display
The service manuals of both the PRS-300 and PRS-505 state that VCOM voltage needs to be calibrated for each individual display based on the value indicated on the "flexible card wire", and give a detailed procedure on how to do it. The manual also states that VCOM voltage is applied only when drawing the screen
Has anyone with a fading display tried to adjust VCOM to see if things improved? |
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08-14-2010, 03:31 PM
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#2 |
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Fanatic
 
Posts: 579
Karma: 3549018
Join Date: Jul 2004
Location: Michigan
Device: Kindle Scribe, Kindle PW (10th & 11th gen); Fire HD 10
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I think I remember reading that you need an oscilloscope to make the adjustment. The average Joe Blow doesn't have one of those in the closet. I just don't read my PRS-300 out in the bright Florida sun and it's fine.
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08-18-2010, 09:45 AM
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#3 |
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Wizard
Posts: 3,442
Karma: 300001
Join Date: Sep 2006
Location: Belgium
Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear
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08-21-2010, 06:35 AM
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#4 |
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Junior Member
Posts: 6
Karma: 10
Join Date: Aug 2010
Device: PRS 505
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I wonder how it affects ghosting - because it appears that the more contrast You get the more gosting it brings..
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