Daktronics 4203 Series, Service Manual

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Table of Contents
Section 1: Introduction .......................................................................................................................1
1.1 Important Contact Information .....................................................................................................1
1.2 Display Identification .....................................................................................................................1
1.3 Terms Used in this Manual ............................................................................................................1
1.4 Spare Parts Box ................................................................................................................................2
1.5 Field Replaceable Units ..................................................................................................................2
Section 2: Display and Control Overview .........................................................................................3
2.1 Internal Display Control System Flow Overview ......................................................................3
2.2 Display Power Overview ...............................................................................................................4
2.3 Display Signal Overview ...............................................................................................................5
Even Module High Section Signal Path ................................................................................5
Odd Module High Section Signal Path .................................................................................5
Section 3: Display Troubleshooting ..................................................................................................7
3.1 Display Troubleshooting ................................................................................................................7
Section 4: Accessing Internal Components ...................................................................................11
4.1 Rear Access .....................................................................................................................................11
4.2 Front Access ...................................................................................................................................11
Section 5: Module Testing and Removal ........................................................................................13
5.1 Module Lanyard Attachment ......................................................................................................13
5.2 Removing a Module from the Display Face (Front Access) ...................................................13
5.3 Reinstalling the Module (Front Access) .....................................................................................13
5.4 Removing a Module (Rear Access) .............................................................................................14
5.5 Removing a Module From the Bottom Row of a Section (Rear Access) ...............................15
5.6 Removing a Module from Behind a Term Panel (Rear Access) .............................................15
5.7 Reinstalling a Module (Rear Access) ..........................................................................................16
5.8 Hinging and Removing the ISP Enclosure for Module Access ..............................................16
5.9 Hinging and Removing the DMP-8065 for Module Access ....................................................16
Section 6: Testing and Replacing Display Components ...............................................................17
6.1 Testing a Module ...........................................................................................................................17
Performing a Module Self-Test ............................................................................................17
6.2 Replacing Module Power Supplies ............................................................................................17
Replacing a Module Power Supply .....................................................................................17
6.3 Testing and Replacing a ProLink Router ...................................................................................17
Table of Contents