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- Unplug the power cord from the power outlet before disassembling this projector.
- Use correctly the supplied power cord and must ground it.
- It is advisable to use an isolation transformer in the AC power line before the service.
- Be careful not to touch the rotation part (cooling fan, etc.) of this projector when you service with the upper
case removed and the power supply turned ON.
- Observe the original lead dress during the service. If a short circuit is found, replace all the parts overheated
or damaged by the short circuit.
- After the service, all the protective devices such as insulation barriers, insulation papers, shields, and isolation
R-C combinations must be properly installed.
- After the service, check the leakage current to prevent the customer from getting an electric shock.
Safety precautions ............................................... III
Contents ...............................................................IV
Introduction ......................................................... 1-1
1-2 Compatible Signals ......................................1-3
Disassembly & Assembly Process ................... 2-1
2-2 Disassemble Filter and Focus Ring ............. 2-2
2-3 Disassemble Lamp Module ..........................2-3
2-4 Disassemble Top Cover Module ..................2-4
2-5 Disassemble IR Sensor
2-9 Disassemble System Fan Module ............ 2-16
2-10 Disassemble Blower Module .................... 2-17
2-11 Disassemble LVPS Module ...................... 2-18
2-12 Disassemble Lamp Driver Module and Inter-
2-15 Repair Action ............................................ 2-23
Troubleshooting ..................................................3-1
3-2 Main Procedure ............................................3-2
3-3 NO Power troubleshooting ...........................3-3
3-4 Power troubleshooting .................................3-4
3-5 Image troubleshooting .................................3-5
3-6 Remote control troubleshooting ...................3-9
3-7 Network troubleshooting ............................ 3-10
3-8 Audio troubleshooting ................................ 3-11
3-9 Electronic Function Block Diagram ............ 3-12
3-10 Pin Assignment ........................................ 3-13
3-11 Service menu explanation ........................ 3-15
Function Test & Alignment Procedure ..............4-1
4-2 Test Inspection Procedure ...........................4-2
4-3 Calibration ....................................................4-3
4-4 Waveform download and Fan calibration ....4-4
4-5 Color Wheel Index Adjustment ....................4-5
Firmware Upgrade ...............................................5-1
5-1-1 Equipment Needed ...................................5-1
5-1-2 DLP Composer Lite Setup Procedure .....5-2
5-1-3 Firmware Upgrade Procedure .........5-4
5-2 MCU Firmware Upgrade Procedure ............5-7
5-2-1 Equipment Needed ...................................5-7
5-2-2 Setup Procedure .......................................5-8
5-2-3 Upgrade Procedure ................................ 5-12
5-3 Network Firmware Upgrade Procedure ..... 5-17
5-3-1 Equipment Needed ................................. 5-17
5-3-2 PC Hardware Link .................................. 5-18
Parts list .......................................................... SPL-1