Table of Contents
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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
Air filter care and cleaning .......................................... 6
Lamp Replacement ....................................................... 7
Lamp replacement...................................................... 7
How to reset Lamp Replace Counter ......................... 7
How to check Lamp used time.................................... 7
Mechanical Disassembly ............................................... 8
Optical Parts Disassembly........................................... 12
Adjustments................................................................. 17
Turning On the Projector........................................... 17
Adjustments after Parts Replacement ...................... 17
Electrical Adjustments ................................................. 21
Service Adjustment Menu Operation........................ 21
Memory IC (IC1371) Replacement........................... 21
Circuit Adjustments................................................... 22
Test Points and Locations......................................... 26
Service Adjustment Data Table................................. 27
Chassis Block Diagrams.............................................. 38
Chassis over view..................................................... 38
System control.......................................................... 39
Power supply & protection circuit.............................. 40
Fan control circuit ..................................................... 41
Troubleshooting ........................................................... 42
Indicators and Projector Condition ........................... 42
No Power .................................................................. 43
No Picture................................................................. 44
No Sound.................................................................. 45
Control Port Functions................................................. 46
System Control I/O Port Functions (IC301) .............. 46
I/O Expander Port Functions (IC1801) .................... 47
IIC Bus DA Converter Port Functions (IC3531) ....... 47
Waveform .................................................................... 48
Cleaning ...................................................................... 49
IC Block Diagrams....................................................... 50
Electrical Parts List ...................................................... 56
Electrical Parts Location ........................................... 57
Electrical Parts List ................................................... 58
Mechanical Parts List .................................................. 76
Cabinet Parts Location ............................................. 76
Optical Parts Location .............................................. 77
Mechanical Parts List ............................................... 81
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC.................A13
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