Table Of Contents; Parts Description And Reading In Schematic Diagram . ..A - promethean PRM-30A Service Manual

Contents
SERVICE MANUAL ....................................................... 1
Multimedia Projector . ..................................................... 1
Contents ........................................................................ 
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
Warning temperature and power failure protection . .... 6
Maintenance .................................................................. 7
Replacing the Filters . .................................................. 7
Resetting the Filter Counter . ....................................... 7
Lamp Replacement .................................................... 8
Resetting the Lamp Counter . ...................................... 9
How to check Lamp Used Time .................................. 9
Cleaning the Projector .............................................. 10
Cleaning the Projection Lens . ................................... 10
Cleaning the Projector Cabinet . ................................ 10
Security Function Notice.............................................. 11
Standby Mode Notice .................................................. 1
Mechanical Disassembly ............................................. 13
Optical Parts Disassembly . .......................................... 19
m Locations and Directions . ..................................... 4
Adjustments . ................................................................ 5
Adjustments after Parts Replacement ...................... 5
Note on Main Board Replacement ........................... 5
Optical Adjustments . .................................................... 6
Contrast adjustment.................................................. 6
Condenser lens (Out) adjustment . ............................ 7
Relay lens (Out) adjustment ..................................... 8
Electrical Adjustments ................................................. 9
Service Adjustment Menu Operation . ....................... 9
Circuit Adjustments . .................................................. 9
Test Points and Locations . ........................................ 33
Service Adjustment Data Table . ................................ 34
Chassis Block Diagrams . ............................................. 48
Chassis over view . .................................................... 48
System control . ......................................................... 49
Power supply & protection circuit . ............................. 50
Fan control circuit ..................................................... 51
Troubleshooting ........................................................... 5
Indicators and Projector Condition ........................... 5
No Power .................................................................. 53
No Picture . ................................................................ 54
No Sound . ................................................................. 55
Control Port Functions . ................................................ 56
Scaler I/O Port Functions (PW190) .......................... 56
IC Block Diagrams . ...................................................... 57
Parts Location Diagrams ............................................. 61
Mechanical Parts List .................................................. 68
Electrical Parts List ...................................................... 69
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram . ..A
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ...................................A9
Pin description of diode, transistor and IC . ................A11
Note on Soldering . .....................................................A1
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