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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
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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
Summary of Contents for PRM-30A
Page 58: ... 58 IC Block Diagrams L3E07111 Digital Gamma and Driver IC401 LC87F2G08A PIC Micom IC9885 ...
Page 59: ... 59 IC Block Diagrams MR4010 Power OSC IC631 NJW1156 Audio Selector IC5001 ...
Page 87: ...Key No Part No Description Key No Part No Description 87 Electrical Parts List KJ8 30A00 ...
