About this Manual
This service manual describes how to perform
hardware service maintenance for the SAM4S
ER-5100II Electronic Cash Register.
Notes
Notes may appear anywhere in the manual.
They describe additional information about the
item.
Precaution symbols
. Indicates a Safety Precaution that applies to
this part component.
. Indicates the part or component is an
electro-statically sensitive device. Use caution
when handling these parts.
Acronym Definition
ASIC Application for Specific
Integrated Circuit
ECR Electronic Cash Register
EPROM Electric Programmable ROM
ESD Electro-statically Sensitive
Device
Ext. Extension
F Fiscal
GND Ground
IC Integrated Circuit
N.C. Not Connected
PCB Printed Circuit Board
R.. Receive
RAM Random Access Memory
ROM Read Only Memory
SRAM Static Random Access
Memory
T.. Transmission
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