OHAUS 7000 Series, Руководство по обслуживанию

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TABLE OF CONTENTS
7000 Series T72XW Indicators Service Manual 2 Ohaus Corporation www.ohaus.com
CHAPTER 1 GETTING STARTED (Continue)
Page No.
1.10.22 Reset .............................................................................................................. 1-25
CHAPTER 2 TROUBLESHOOTING
2.1 Introduction ..............................................................................................................2-1
2.2 Diagnostic Guide ......................................................................................................2-1
2.3 Error Codes And Error Message ..............................................................................2-3
2.4 troubleshooting ........................................................................................................2-5
2.4.1 Blank Display ....................................................................................................2-5
2.4.2 Power Test .......................................................................................................2-5
2.4.3 Problem Diagnosis ...........................................................................................2-5
2.5 Internal Diagnostics ..................................................................................................2-7
2.5.1 Display Test .......................................................................................................2-7
2.5.2 Keyboard Test ...................................................................................................2-8
2.6 Scale Diagnostics ....................................................................................................2-8
2.7 Serial Test ................................................................................................................2-8
2.8 Discrete I/O Test .................................................................................................... 2-10
2.9 System Backup and Restore .................................................................................. 2-11
2.10 Backup to SD Memory Card ................................................................................... 2-12
2.11 Restore From SD Memory Card ............................................................................. 2-12
2.12 Master Reset .......................................................................................................... 2-13
2.13 Updating Firmware ................................................................................................. 2-14
CHAPTER 3 MAINTENANCE PROCEDURES
3.1 Preventive Maintenance ...........................................................................................3-1
3.1.1 Cleaning and Maintenance ...............................................................................3-1
3.2 Replace of Major Components .................................................................................3-2
3.2.1 Opening the Enclosure .....................................................................................3-2
3.2.2 Closing the Enclosure .......................................................................................3-3
3.2.3 Main Printed Circuit Board (PCB) Replacement ................................................3-3
3.2.4 Back Light LCD Display Replacement ...............................................................3-5
3.2.5 Membrane Switch Replacement .......................................................................3-6
3.3 Wiring Connection ....................................................................................................3-7
3.3.1 Analogue Load Cell Connections ......................................................................3-7
3.4 PCB Switch Setting ..................................................................................................3-9
3.4.1 Main PCB Swicthes ..........................................................................................3-9
3.5 SD Card Installation ............................................................................................... 3-10
3.6 Securing the Enclosure .......................................................................................... 3-11
CHAPTER 4 PARTS LISTS & DIAGRAMS
4-1 7000 Series T72XW Indicator: Housing & Internal Parts ..........................................4-2