Sam4s NR-500R User Manual

ELECTRONIC CASH REGISTER
CONTENTS
NR-500 Series
ELECTRONIC CASH REGISTER
Manual
1. Precaution Statements
2. Product Specifications
3. Installation and Operation
4. Disassembly and Assembly
5. Maintenance and Adjustment
6. Exploded Views and Parts List
7. PCB Layout and Parts List
8. Troubleshooting
9. Block diagram
10. Wiring Diagram
11. Schematic Diagrams
SERVICE

Sam4s NR-500R Specifications

General

Type	Electronic Cash Register
Printer Type	Thermal
Dimensions	350 x 320 x 180 mm
Paper Width	58mm
Serial Ports	1
Connectivity	RS-232
Interface	RS-232

Summary

Precaution Statements

Safety Precautions

Essential safety guidelines for handling and servicing the ECR to prevent hazards.

Servicing Precautions

Precautions to follow during servicing to ensure safety and prevent damage.

Precautions for Electrostatic Sensitive Devices (ESDs)

Guidelines for handling ESD-sensitive components to prevent damage from static electricity.

Product Specifications

General Specification

Detailed specifications of the ECR, including processor, memory, and connectivity.

Appearance

Visual dimensions and location features of the ECR for identification.

Thermal Printer Specification

Technical details specific to the thermal printer component of the ECR.

Power Specification

Information regarding the power input, consumption, and output specifications.

Interface Specification

Details on various interface specifications, including RS-232C, USB, and Ethernet.

Installation and Operation

System Configuration

Overview of how the ECR connects and integrates into a larger system.

Installation

Step-by-step instructions for installing paper rolls and connecting serial cables.

Operation

Guidance on operating the ECR, including mode switch functions and key operations.

Disassembly and Assembly

Disassembling the Case Upper Block

Procedures for taking apart the upper section of the ECR's casing.

Disassembling the Case Lower Block

Procedures for taking apart the lower section of the ECR's casing.

Maintenance and Adjustment

Cleaning the Printer Head

Instructions for cleaning the printer head to maintain print quality.

Exploded Views and Parts List

Exploded View (NR-520R)

Visual representation of the NR-520R model's disassembled parts.

Exploded View (NR-520)

Visual representation of the NR-520 model's disassembled parts.

PCB Layout and Parts List

Main PCB Layout

Diagram showing the layout and component placement on the Main PCB.

Printer Joint PCB Layout

Diagram illustrating the layout of the Printer Joint PCB.

GPRS PCB Layout

Diagram showing the layout of the GPRS PCB.

SD CARD PCB Layout

Diagram illustrating the layout of the SD Card PCB.

Micro SD CARD PCB Layout

Diagram showing the layout of the Micro SD Card PCB.

Fiscal PCB Layout

Diagram illustrating the layout of the Fiscal PCB.

Interface PCB Layout

Diagram showing the layout of the Interface PCB.

Troubleshooting

Power Problem

Diagnostic steps for resolving power-related issues with the ECR.

System Problem

Diagnostic steps for addressing general system malfunctions in the ECR.

LCD Display Problem

Troubleshooting guide for issues related to the ECR's LCD display.

Thermal Printer Problem

Steps to diagnose and fix problems with the ECR's thermal printer.

Key Board Problem

Troubleshooting procedures for keyboard input failures or specific key issues.

Drawer Problem

Diagnostic steps for resolving issues with the ECR's drawer mechanism.

RS-232C Serial Communication Problem

Troubleshooting guide for communication failures via the RS-232C interface.

Block Diagram

Wiring Diagram

Wiring Pin Connection

Detailed pin connection diagrams for various components and connectors.

Schematic Diagrams