16 Troubleshooting
57
16.1 Troub
leshooting Chart
Symptom
Possible Causes
Possible Solutions
Reference
1.
No power to the Power
Supply.
.
t Harness, CN1 PS.
14.4, 17.5,
18.1, 19.7
Plug the Power Cord in to a working outlet
Check/replace fuse.
Check/replace Power Cord.
Check/replace Main Power Switch.
Check/replace Power Supply Inpu
3.3, 4.1,
2.
No power to Main PCB.
Check/replace Wire Harness, CN21 PS.
-PCB.
arness, CON3 AD-PCB.
twork PCB.
.3,
5,
Check/replace Wire Harness, CN22 PS.
Check/replace Power Supply.
Check/replace Display Harness, J17/J18 M
Check/replace Display Stalk.
Check/replace ADC Wire H
Check/replace AD-PCB.
Check/replace Ne
Check/replace Printer Assembly.
2.1, 2.2, 3
4.1, 4.2,
14.7 14.3,
14.4 14.6
17.4, 17.
18.1, 19.3,
19.6, 19.7
Scale will not
power ON.
3.
Power to Main PCB is OK.
CB.
8.12, 12.10,
13.2, 13.3,
7.3, 17.5,
9.1, 19.6
Check/replace all EPROMs.
Check/replace Memory Expansion P
Check/replace Main PCB.
Also check 2.No power to Main PCB.
1
1
1.
“Printer Continuously Busy.”
rinter System EPROM, U8 M-PCB.
10.5, 12.10,
14.3, 17.3,
19.6
Check/replace P
Check/replace Main PCB.
Check/replace Printer Assembly.
2.
“Calibrated mass error.”
librate the
7.1 ~ 7.4,
6.1
Reprogram all Weight settings & Span ca
scale.
3.
“Load Cell not ready.”
Check for platter or platform obstruction.
Check/replace ADC Wire Harness, CON3 AD-PCB.
Check/replace ADC Wire Harness, CON2 AD-PCB.
Check/replace AD-PCB.
Check/replace Load Cell Assembly.
2.1, 4.1, 6.1,
7.1 ~ 7.4,
12.3, 13.2,
13.5, 14.5,
19.5
4.
“Zero Range Error.”
For more than 45 seconds.
Check for platter or platform obstruction.
Remove all items from platter and cycle power.
Reprogram all Weight settings & Span calibrate the
scale.
Check/replace ADC Wire Harness, CON2 AD-PCB.
Check/replace AD-PCB.
Check/replace Load Cell Assembly.
Check/replace Main PCB.
2.1, 4.1, 6.1,
7.1 ~ 7.4,
12.3,
14.1 ~ 14.5
17.4, 19.5
Scale
powers ON
with a
n error.
5.
Scale beeps and “looks”
like it is turned ON, but there
is no display light.
Check/replace Display Harness, J17/J18 M-PCB.
Check/replace Display Stalk.
Check/replace Wire Harness, CN21 PS.
Check/replace Power Supply.
Check/replace Main PCB.
2.1, 2.2, 4.1,
4.2, 11.2,
14.3, 14.4,
14.7, 17.3,
19.3, 19.6
Scale
owers ON
goes to
ero.
1.
Scale weight is inaccurate.
Check for platter or platform obstruction.
Remove all items from platter and cycle power.
Reprogram all Weight settings & Span calibrate the
scale.
Check 3.”Load Cell Not Ready.”
2.1, 4.1, 6.1,
7.1 ~ 7.4,
12.3, 14.3,
14.5, 17.4,
19.5
p
&
Z
Summary of Contents for LP-II
Page 1: ...Thermal Label Printing Scale Service Manual Version 3 0 LP II ...
Page 2: ......
Page 8: ......
Page 11: ...1 General 3 1 3 Dimensions ...
Page 72: ......
Page 73: ......
Page 74: ......
Page 89: ...Notes ...