3 Installation and Operation
3-4
SAM4S ER-420M/F SERIES
3-3 Operation
Note:
Before using this Electronic Cash Register (ECR) for the first time, leave it powered ON in the REG mode
for a at least 24 hours. This allows the Ni-MH battery, which maintains the ECR’s memory while the
power is OFF, to fully charge.
3-3 A. Mode Switch
The position of the Mode Key determines the action of the ECR. The modes are as shown in Table 3-3
Figure3-4 Mode Switch Table3-3 Mode Switch Function
The mode switch can be used to access the following key lock positions.
Mode Accessible
Position
Remark
VOID
Void, Off, Register, Manager
X
Off, Register, Manager
Z
Off, Register, Manager, Clear Totals
PGM
Void, Off, Register, Manager, Clear Totals, Program
S
Void, Off, Register, Manager, Clear Totals, Program, Service Mode
Table3-4 Key Function
Note :
The Key can be removed from the key lock in the OFF or REGISTER position.
Mode Key
Function
VOID
VD
Use to void (correct) items outside of a sale.
OFF
-
The Register is inoperable.
REG
REG
Use for normal registrations.
X X
Use to read register reports and perform other manager
functions.
Z
Z
Use to read register reports and reset totals to zero.
PGM
P
Use to program the register
S
C
Use for H/W tests and special setting.
REG
X
Z
PGM
S
OFF
VOID
Summary of Contents for ER-420 Series
Page 2: ......
Page 23: ...3 Installation and Operation 3 8 SAM4S ER 420M F SERIES MEMO...
Page 27: ...5 Maintenance and Adjustment 5 2 SAM4S ER 420M F SERIES MEMO...
Page 43: ...6 Exploded Views and Parts List 6 16 SAM4S ER 420M F SERIES MEMO...
Page 44: ...SAM4S ER 420M F SERIES 7 1 7 PCB Layout and Parts List 7 1 Main PCB Layout...
Page 61: ...8 Troubleshooting 8 8 SAM4S ER 420M F SERIES MEMO...
Page 65: ...9 Block Diagram 9 4 SAM4S ER 420M F SERIES MEMO...
Page 67: ...10 Wiring Diagram 10 2 SAM4S ER 420M F SERIES MEMO...
Page 85: ......
Page 86: ...Shin Heung Precision May 2004 Printed in KOREA V1 0 Code No JK68 60958A...
