Battery Charging; Printed Circuit Board Jumper Table; Error & Status Display - Cardinal CN20 Series Technical Manual

PRINTED CIRCUIT BOARD JUMPER TABLE

FACTORY SETUP
CN20E
LED
J1 Open
J6 Open
J7 *Open
J8 Open
J10 Shorted
J11 Open
*Shorted if equipped with numeric keypad.
The CN20 is equipped with a diagnostic software program that tests various portions of the
instrument's circuitry and verifies proper operation. Should a problem be detected, an error or status
message will be displayed alerting the operator to that condition. The following lists these errors and
status displays and their meaning:
Display
UnSt
UnLd
LoAd
BATTERY CHARGING, Cont.
P1
U18
CN20L PCB Side
LCD Location
Open Component
Open Component
*Open Component
Open Component
Open Component
Open Component
Refer to Figure No. 9
ERROR AND STATUS DISPLAYS
D1
P3
P2
Numeric Keypad
Enabled
J7
J8
J9
J10
J11
International Application
(causes the power up
sequence to include
memory and display test)
Shorted Function
Function
(Battery Charger Enable)
(Auto-on)
(Numeric Keypad Enable)
(International Application)
(LED Select)
(Test Mode Select)
Meaning
Motion is present when the CN20 is attempting
to perform one of the following operations:
Power Up
Zero Weight Display
The weight on the scale platform exceeds the
zero range on Power On.
The scale deadload is less than the zero range
on Power On.
11
Figure No. 9
Install Jumper for
Ni-Cad batteries.
Remove Jumper for
Alkaline Batteries