Consumption Current; Lcd Contrast Check - Korg PA500 Service Manual

<< Consumption Current >>
After the restart, display becomes like following. Set the [VOLUME] slider to the maximum
position. Confirm that the consumption current is 580 – 640 [mA].
<<LCD Contrast Check>>
Check of the LCD contrast, watch the screen from the 50degree points. See the chart of next
page.
Pressing the [MENUE] rotate the [TEMPO/VALUE] encoder to the clock wise and let brighter.
At the time confirm that the display is brighter than the photo of the "limit of bright direction" .
Next pressing the [MENUE] and rotate the [TEMPO/VALUE} encoder to the counter clockwise
direction and let the screen dark. Then watch the LCD and confirm that the screen is darker than
the photo of the "limit of dark direction".
Pressing the [MENUE] rotate the [TEMPO/VALU] encoder to the clock wise direction and adjust
the contrast of the LCD to the "STANDARD" photo.
"limit of bright direction"