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Contents
Safety Instructions......................................................... 3
SAFETY PRECAUTIONS........................................... 3
PRODUCT SAFETY NOTICE .................................... 3
SERVICE PERSONNEL WARNING .......................... 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Thermal switch ........................................................... 5
Lamp cover switch...................................................... 5
Fuse............................................................................ 5
Warning temperature and power failure protection .... 6
Air filter care and cleaning .......................................... 6
Security Function Notice................................................ 7
Lamp Replacement ....................................................... 8
Lamp replacement...................................................... 8
How to reset Lamp Replace Counter ......................... 8
How to check Lamp used time ................................... 8
Mechanical Disassembly............................................... 9
Optical Parts Disassembly........................................... 13
Panel Type Check .................................................... 16
Adjustments................................................................. 19
Adjustments after Parts Replacement ...................... 19
Electrical Adjustments ................................................. 23
Service Adjustment Menu Operation........................ 23
Memory IC (IC1371) Replacement........................... 23
Circuit Adjustments................................................... 24
Test Points and Locations ........................................ 27
Service Adjustment Data Table ................................ 28
Chassis Block Diagrams.............................................. 39
Chassis over view..................................................... 39
System control.......................................................... 40
Power supply & protection circuit ............................. 41
Fan control circuit ..................................................... 42
Troubleshooting........................................................... 43
Indicators and Projector Condition ........................... 43
No Power.................................................................. 44
No Picture................................................................. 45
No Sound.................................................................. 46
Control Port Functions................................................. 47
System Control I/O Port Functions (IC301) .............. 47
I/O Expander Port Functions (IC1801) .................... 48
IIC Bus DA Converter Port Functions (IC3571) ....... 48
Waveform .................................................................... 49
Cleaning ...................................................................... 50
Projection Lens Cleaning.......................................... 50
IC Block Diagrams....................................................... 51
Electrical Parts List...................................................... 57
Electrical Parts Location ........................................... 58
Mechanical Parts List .................................................. 79
Cabinet Parts Location ............................................. 79
Optical Parts Location .............................................. 80
Mechanical Parts List ............................................... 84
Diagrams & Drawings..................................................A1
Parts description and reading in schematic diagram...A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams.................................A11
Pin description of diode, transistor and IC.................A15
Note on Sordering .....................................................A16