Enter Advanced Service Mode - Welch Allyn 4802D Service Manual

PC brd* This option displays the model number of the printed circuit board. A second press of DATA
SEND displays the revision of the printed circuit board.
SEt-UP This option is displayed when you have cycled through all the options. Press and hold ON to
power down the scale.

Enter Advanced Service Mode

1. Make sure the scale is powered down
2. Press and hold "Kilo/Pounds" while pressing ON/(OFF)/ZERO.
3. Once the scale powers up, press and release "DATA SEND" five times RAPIDLY. The scale
displays SEt-UP and produces a series of four long beeps.
4. Press the "DATA SEND" button
5. The "RECALL PRIOR WEIGHT" pushbutton is used to select the particular option value.
6. Once this value is selected the scale can be advanced to the next option by again pressing the
"DATA SEND" pushbutton or it can be shut-off by pressing and holding the "ON / (OFF) / ZERO"
pushbutton.
Advanced Service Mode
Menu List for
1. "A/D", and next window on display will show the raw A/D reading. As you press on the Platform
the A/D reading will chance. The weight chance reading should be positive proportionally with the
applied weight in pounds.
2. "Test", and the next window will start displaying the display test, Number will show across from 0
to 9 and repeat w/ DP, from right side to left side.
3. "Pr-OnS" = Power on start-up, next display will show the number of times the "ON" pushbutton
has been depressed.
4. "Pr-rcl" = Powered by Recall, next display will show the number of times the "RECALL"
pushbutton has powered-up the scale (from an off state).
5. "COUntS" = Weighing Counts, next display will show the number of times a weight reading has
been achieved.
6. "rEcntS" = Reweigh counts, next display will show the number of times "Reweigh" pushbutton has
been depressed.
7. "rECLLS" = recalls, next display will show the number of times the "RECALL" pushbutton has
been depressed.
8. "OFFS" = Turned Off, next display will show the number of times the scale has been turned off by
holding the "ON" pushbutton down.
9. "PrintS" = Prints, next display will show the number of times the "Print" pushbutton has been
depressed.
10. "SEtUPS" = set-up mode, next display will show the number of times the unit has entered into the
set-up mode.
11. "SEruES" = service mode, next display will show the number of times the unit has entered into
the service mode.
12. "CALS" = Cal mode, next display will show the number of times the unit has entered into the Cal
mode.
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