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Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Encoder Page 6-1
ST.TM.E10076.3
Chapter 6
6. Preventive Maintenance and
Fault-finding
Contents
6.1 Introduction ............................................................... 6-3
6.2 Preventive Maintenance............................................ 6-3
6.2.1 Routine Inspection - Cooling Fans................ 6-3
6.2.2 Cleaning........................................................ 6-3
6.2.3 Servicing....................................................... 6-3
Damage Requiring Service...........................6-3
Replacement Parts.......................................6-4
Checks on Completion of Servicing..............6-4
6.3 Maintenance and Support Services..........................6-4
6.3.1 Introduction................................................... 6-4
6.3.2 Warranty.......................................................6-4
6.3.3 Levels of Continuing TANDBERG
Television Service Support........................... 6-4
6.4 Errors and Diagnostics Menus – When to Use
Them ......................................................................6-5
6.4.1 Error Messages ............................................ 6-5
6.4.2 Diagnostics Menu ......................................... 6-5
Introduction................................................... 6-5
LCD Display Test..........................................6-6
Keyboard Test .............................................. 6-6
Fail Relay Test.............................................. 6-6
Alarm Relay Test..........................................6-6
Alarm LED Test ............................................ 6-6
Buzzer Test...................................................6-7
6.5 Fault-finding ..............................................................6-7
6.5.1 Fault-finding Philosophy ...............................6-7
6.5.2 Preliminary Checks.......................................6-7
6.5.3 User Accessible Fuse Replacement............. 6-8
6.5.4 Video Fault-finding ........................................6-9
Fault Symptoms............................................6-9
Breaks in Transmission.................................6-9
Noise Reduction............................................6-9
6.5.5 Audio Fault-finding ......................................6-10
6.5.6 Mux Fault-finding.........................................6-10
6.6 Rate Buffer Setting..................................................6-10
6.7 Field/Frame Pictures ...............................................6-10
6.8 Power Supply Problems/Green LED on Front
Panel Unlit...............................................................6-11
6.8.1 Symptoms ...................................................6-11
6.8.2 Power LED Unlit..........................................6-11
6.8.3 Fan(s) Not Working/Overheating ................6-11
6.9 Disposing of This Equipment...................................6-12
6.9.1 General .......................................................6-12
6.9.2 Lithium Batteries .........................................6-12
List of Figures
Figure 6.1: Finding the Errors Menu.............................................. 6-5
Figure 6.2: Finding the Diagnostics Menu..................................... 6-6
Figure 6.3: Orientation of Fuse Carrier.......................................... 6-9
List of Tables
Table 6.1: Video Fault-finding........................................................ 6-9
Table 6.2: Rate Buffer Settings.................................................... 6-10
Table 6.3: Power LED Unlit Fault-finding .................................... 6-11
Table 6.4: Fans Not Working/Overheating .................................. 6-12