Eiki 1 122 511 01, Service Manual

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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
Fuses (F601, F602, F603) ...............................................5
Thermostats (SW903, SW904, SW905, SW906) ...........6
Temperature sensors, wind sensors ...............................7
Power failure, fan lock and filter error detection ..............8
Maintenance .................................................................. 9
Maintaining the AMC unit ................................................9
Replacing the Filters ..................................................... 10
Resetting the Filter counter ........................................... 11
Lamp management ....................................................... 12
Lamp replacement ........................................................ 13
Checking the projector used time and lamp used time . 14
Quick maintenance ....................................................... 15
Cleaning the optical parts.............................................. 16
Cleaning the Projection lens ......................................... 16
Cleaning the Projector cabinet ...................................... 16
Security Function Notice ............................................. 17
Lens Mounting ............................................................. 18
Mechanical Disassembly............................................. 22
Mechanical disassembly flow chart...............................22
Mechanical disassembly ...............................................23
Optical Parts Disassembly .......................................... 44
Adjustments ................................................................. 58
Adjustments after Parts Replacement...........................58
Note on Main board replacement ..................................58
Optical Adjustments .................................................... 59
Optical adjustment location ...........................................59
Before adjustment .........................................................60
1. Optical center adjustment ..........................................62
2. PBS adjustment .........................................................66
3. Contrast adjustment ..................................................67
4. Back focus adjustment ..............................................68
5. Convergence adjustment ..........................................69
Adjustment ....................................................................72
Electrical Adjustments ................................................. 73
Service adjustment menu operation .............................73
Circuit adjustments ........................................................ 74
Test points and locations ...............................................78
Service adjustment data................................................79
Chassis Description .................................................. 157
Chassis over view........................................................ 157
Boards connection ......................................................158
Troubleshooting ......................................................... 159
No Picture .................................................................... 159
No Power .....................................................................163
Power supplies to boards ............................................164
AC-DC power board ....................................................165
DC power borad ..........................................................166
PFC-1 & PFC-2 board ................................................. 167
Power supply and power failure detection ...................168
Power drive and power failure signals ......................... 171
Fan control system ...................................................... 172
Motor control system ................................................... 173
Temperature abnormality ............................................ 174
Lamp abnormality ........................................................ 175
Lamp control system ................................................... 176
Power failure detection system ................................... 177
Error information table ................................................. 177
Error history log ........................................................... 178
Diagnosis of power failure with RS-232C port ............ 179
Diagnosis procedure ................................................... 179
Indicators and projector condition ...............................180
Serial Control ............................................................. 183
Serial control interface ................................................183
Control Port Functions............................................... 185
IC Block Diagrams..................................................... 188
Parts Location Diagrams ........................................... 194
Mechanical Parts List ................................................ 212
Electrical Parts List .................................................... 214
Diagrams & Drawings .................................................. A1
Parts description and reading in schematic diagram ..A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ................................. A19
Pin description of diode, transistor and IC ................A33
Note on Soldering ......................................................A34