Avery Weigh-Tronix WI-150, Service Manual

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2
Keyboard
Figure 1
WI-150 Keyboard
Places the battery-powered version in sleep mode. Is not
functional in the AC/DC powered version.
Wakes the battery-powered version from sleep mode. Is not
functional in the AC/DC powered version.
Zeros the scale in gross/net weigh mode. This button also
clears keyed in digits on the display before they are accepted.
Changes the unit of measure during operations mode and
inserts a decimal point (.) when keying in values.
Sealing the Indicator
The WI-150 can be sealed. If sealed, no configuration items can be changed
in the configuration menu. Seal the unit by placing switch S1-1 in the OFF
position. Unseal the unit by placing S1-1 in the
ON position. Remove the front panel of the
indicator to gain access to switch S1-1. The
switch is located near the center of the PC
board behind the display and looks like the
diagram at right. S1-3 and S1-4, which connect
the
WI-150's ON/OFF keys to the appropriate
circuitry, should always be in the ON position to
allow optimal functioning of the indicator. S1-2
is not functional.
OFF
ON
ZERO
C L E A R C L E A R C L E A R C L E A R C L E A R
.
UNITS