Table of Contents
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Contents
SERVICE MANUAL . ...................................................... 1
Contents ........................................................................ 2
Safety Instructions ......................................................... 3
Safety Precautions ..................................................... 3
Product Safety Notice . ................................................ 3
Service Personnel Warning ........................................ 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Thermal switch ........................................................... 5
Fuse . ........................................................................... 5
Lamp cover switch . ..................................................... 5
Maintenance .................................................................. 7
Replacing the filter . ..................................................... 7
Resetting the filter counter ........................................ 7
Lamp replacement . ..................................................... 8
Resetting the lamp counter ....................................... 9
How to check lamp used time ................................... 9
Cleaning ................................................................... 10
Security Function Notice . ............................................. 11
Resetting procedure ................................................ 11
Standby Mode Notice .................................................. 12
Mechanical Disassembly ............................................. 13
Adjustments . ................................................................ 22
Adjustments after parts replacement . ....................... 22
Note on main board replacement ............................. 22
Service adjustment menu operation ......................... 22
Circuit adjustments ................................................... 23
Service adjustment data table .................................. 26
Chassis Block Diagrams . ............................................. 34
Chassis over view . .................................................... 34
System control . ......................................................... 35
Fan control circuit ..................................................... 37
Troubleshooting . .......................................................... 38
Indicators and projector condition . ............................ 38
No power .................................................................. 39
No picture ................................................................. 40
No sound .................................................................. 41
Error log . ................................................................... 42
Control Port Functions . ................................................ 43
System control (DDP, IC401) ................................... 43
IIC bus D/A converter (Fan control, IC7881) ............ 44
IC Block Diagrams . ...................................................... 45
Parts Location Diagrams ............................................. 50
Mechanical Parts List .................................................. 54
Electrical Parts List ...................................................... 55
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC . ................A13
Note on Soldering . .....................................................A14
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Table of Contents
