03/10 Rev. 5.04-04 SERVICE MANUAL Service Mechanics
64-xx – 64-xx Dispenser
63
Operating panel
The operating panel, including the buttons,
display, frame and board, can be exchanged
as a unit.
Disassembling/assembly
1. Remove the rear hood.
2. Press the operating panel out of the
printer housing from the rear and
remove it (1).
3. Disconnect the connecting cable from
the operating panel.
Adjusting brightness / contrast
The backside of the operation panel (2) has
two blue potentiometers on it. One is for
adjustment of display brightness (3) and the
other for adjustment of display contrast (4).
1. Disassemble the operation panel as
described above, without unplugging the
connection cable.
2. Adjust the pots with a screwdriver, until
the display is easily readable.
1
2
3
4
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