Instruction Manual: evolution 5000 E57xx DSNG and DENG Voyager Enco d er 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