Contents
1 System Introduction ................................ ................................ ................................ ................1
1.1 Technical Specification
................................ ................................ ................................1
1.2 System Block Diagram................................ ................................ ................................ .4
2 Firmware Upgraded Flow ................................ ................................ ................................ .......5
2.1 Check FW version ................................ ................................................................ ........5
2.2 Setup Tool/Equipment ................................ ................................ ................................ .5
2.3 Upgrading Procedure ................................ ................................ ...................................5
3 Machine Disassembly and Replacement
................................ ................................ ..........10
3.1 Tools................................ ................................ ................................ ............................. 10
3.2 Disassembly Procedure................................ ............................................................. 10
3.3 Mechanical Drawing
................................ ................................ ..................................16
4 Troubleshooting and Verifying the Repair ................................ ................................ .........17
4.1 Troubleshooting ................................ ................................ ................................ ........17
4.2
Verifying the Repair................................ ................................ ................................ ....23
5
Connector Information ................................ ................................ ................................ .........26
5.1 Main Board
................................ ................................ .................................................26
5.2 LED Drive Board
................................ ................................ ........................................27
Appendix A: Measurement method and Formula ................................ ...........................................28
1. Bightness measurement ................................ ................................ ................................ .28
2. Light uniformity measurement(JBMA) ................................ ................................ ...........28
3. Light Uniformity(Dark Corner) ................................ ................................ ........................28
4. Contrast measurement(JBMA) ................................ ................................ ......................29
5. TV DISTORTION................................ ................................ ................................ .............29
Appendix B: Computer Compatibility................................ ................................ .........................30
Appendix C: Video Compatibility ................................ ................................ ............................... 30
Appendix D: Spare Parts list................................................................ ................................ .......31