Re: Display swap with T6963C ?

I have.=20=20

The main issue with an LCD is setting its viewing angle.  If you look at a =
properly-set-up LCD dead-on, the letters will be black and the background w=
ill be white.  But if you look at it from a (say) 45 degrees angle from abo=
ve, the letters will be washed-out white; and from a 45 degree angle from b=
elow, the background will be washed-out black -- your situation.

The viewing angle is normally set via a voltage value, likely between 0 and=
 5V.  The K5M has a "contrast" knob on the front which is attached to a pot=
entiometer which lets you change this voltage value; but it may not be enou=
gh.  You may have to set up a little voltage divider -- basically soldering=
 in two resistors of the right resistance -- to adjust the contrast so that=
 the middle position of the contrast knob corresponds with dead-on properly=
 viewed letters.

Building a voltage divider requires a bit of electronical engineering knowh=
ow; I lucked out in getting a colleague of mine to run the math for me to f=
igure out the right values (I had bought an LCD from Mo Morgan (lightsforsy=
nths-/[email protected]) but it wasn't adjusted right as well).  Afterwards my LCD l=
ooked great.

Sean

> On Sep 12, 2019, at 3:57 PM, [email protected] [k5synth] <k5synth@yaho=
ogroups.com> wrote:
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> As my backlight is dead, I tried to avoid disassembling the LCD by buying=
 a replacement LCD.
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> I read somewhere, that the type should be compatible with T6963C.
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> So I bought this one:
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> https://www.ebay.de/itm/Powertip-LCD-Grafik-Display-24064-GLCD-240-64-PG2=
4064E-PD-T6963C-1-St=C3=BCck/311819406726?ssPageName=3DSTRK%3AMEBIDX%3AIT&_=
trksid=3Dp2060353.m1438.l2649
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> I connected everything except the 100V. The display became black, without=
 any letters visible.
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> Did anyone replace the complete LCD yet ?
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Posted by: Sean Luke <[email protected]>
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