Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- skyperdescription [2019/04/16 16:53]
oe7bsh [Removing the display from the case]
+++ skyperdescription [2019/06/16 19:21]
dg5ffn
@@ Zeile 90: / Zeile 90: @@
 Photos courtesy DK7TD
+===== Preset of display contrast =====
+Have you ever asked yourself what this tiny trimpot on the rear side of the display board does?
+Well if your display is working fine and contrast setting can be done via setup menu there is
+probably no need to.
+The initial setting was done by the manufacturer and normally this should work all right.
+In case you have trouble with your display contrast it may be helpful to check this alignment according to the picture shown below.
+Turning this trimpot clockwise will increase display contrast while turning counterclockwise will decrease it.
+Please be aware that this is a very coarse setting. This SMD-trimpot has no upper or lower limitations. It can be turned around the full 360 deg.
+The fine adjustment is done afterwards in the Skyper setup menu using the up and down keys.
+{{:p4240071.jpg|}}
+===== Separating the display board from the case =====
+In case you have trouble with the silicone rubber keyboard or with the microswitches underneath
+you may want to take display board and case of your Skyper apart.
+Another reason to do this may be that you want to clean the display and case from the inside.
+{{:p6160003y.jpg|}}
+Of course you can do this like DK7TD describes it using a small screwdriver.
+If you are unlucky you may end up with a display where some lines of pixels are missing
+when you power up your Skyper afterwards.
+What has happened? While pulling out the display board this way the flexible board connector
+atop of the LCD display may move and some pins can get loose.
+Should this ever happen there is no way to fix this.
+After experiencing this twice up to now (I have modified >20 Skyper) I asked myself:
+Is there a safer way to work on the display board?
+YES there is one.
+{{:p6160026y.jpg|}}
+{{:p6160081z.jpg|}}
+{{:p6160091y.jpg|}}
+{{:p6160079y.jpg|}}
+{{:smd_kurzhub_mikroschalter.jpg|}}

DAPNET DokuWiki

Benutzer-Werkzeuge

Webseiten-Werkzeuge

Unterschiede

Seiten-Werkzeuge