AVA WEIGH 334PCS40 - Troubleshooting; Power-On & Error Codes; Function Problems

TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Power-On
Problem
No Display
Baeries loaded incorrectly,
or adapter/plug loose/not
connected
Check that the baeries are
correctly loaded, if correct, replace
baeries. Check power supply
connecons.
Damage to electrical
components
Replace with new PCB
Key buon malfuncon Replace with new Key buon
Displaying Irregular
Characters
Crystal-Oscillator on PCB
malfuncon or MCU is not
correctly inserted
Replace the Crystal-Oscillator.
Correctly insert the MCU
Does not go to 0
aer tesng display
Key, PCB, or Load Cell
malfuncon
Check the Key buon, replace PCB
or Load Cell
Missing segments or
marks on LCD
LCD connect pin broken Replace LCD
Error
Err04
Zero point is over the
seng range
Object on plaorm is more
than 1.5%FS when pressing
ZERO key;
Load Cell zero balance changes
Remove the objects from the
plaorm; calibrate again, or replace
Load Cell
Err05
Zero point is below
the seng range
There is one foot not standing
on solid base; Plaer removed
before power-on; Load Cell
zero point output changes
Place all feet on solid base;
Place plaer back on scale;
Calibrate again, or replace Load Cell
Err20
Calibraon error
Load Cell with no signal; Too
small or large output; Load Cell
signal wire broken; Load Cell
broken; Load Cell zero point
changes
Recalibrate scale;
Replace PCB or Load Cell
Err01
Weight signal too large
Weight exceeds max. capacity;
The Load Cell output signal is
too big
Remove the object;
Change Load Cell;
Recalibrate scale
Err03
Weight signal too
small
Plaer removed while scale is
on
Place plaer back on scale
Err30
ADC is over max.
range
Load Cell signal is too large
Replace the Load Cell;
Replace PCB
Lo.bAt
Low baery
Voltage is lower than 5.7V Charge baery
19.