ScreenPlay 7200 Service Guide
2
Table of Contents
Safety Precautions ........................................................................................................ 3
Important Precautions .................................................................................................. 3
Important Safety Instructions ...................................................................................... 4
Parts Replacement ........................................................................................................ 5
Removable Parts Hierarchy ..................................................................................................6
Ballast ...................................................................................................................................7
Bottom Case .........................................................................................................................9
Chassis ...............................................................................................................................11
Remove and Replace the Color Wheel Assembly ..............................................................14
Calibrate the Color Wheel ...................................................................................................17
Controller ECA ....................................................................................................................21
Optical Engine.....................................................................................................................24
Fan Assembly .....................................................................................................................26
Focus and Zoom Rings .......................................................................................................27
Front IR Receiver and cable ...............................................................................................30
Handle.................................................................................................................................31
I/O EMI Shield .....................................................................................................................32
Keypad ................................................................................................................................33
Lamp Door and Lamp Module.............................................................................................35
Outer Handle.......................................................................................................................37
Power Supply ......................................................................................................................39
Rear IR Receiver.................................................................................................................42
Rear Bezel ..........................................................................................................................43
Safety Switch ......................................................................................................................45
Top Case.............................................................................................................................47
Troubleshooting .......................................................................................................... 49
Power and Start-up Problems .............................................................................................50
Image Problems ..................................................................................................................58
Keypad Problems................................................................................................................59
Remote Problems ...............................................................................................................60
Audio Problems...................................................................................................................61
Block Diagram.....................................................................................................................62
Check Controller Voltages ..................................................................................................63
Power Up with Top Case Removed to Check Fans and Voltages ......................................64
Check the Color Wheel and Reseat the Cable ...................................................................67
Check the Thermal Switch ..................................................................................................69
Parts Lists.................................................................................................................... 70
Component Parts Exploded View .......................................................................................70
Case Parts Exploded View..................................................................................................71
Replaceable parts ...............................................................................................................72
Fastener Kit Contents .........................................................................................................73
