Table Of Contents; Contents - Panasonic PT-TW230U Service Manual

Contents

Contents ........................................................................ 2
Safety Instructions ......................................................... 3
Safety precautions ...................................................... 4
Specifications ................................................................ 5
Circuit Protections ......................................................... 7
Thermal fuse(SW902) ................................................ 7
Fuse(F601) ................................................................. 7
Lamp cover switch(SW901) ........................................ 7
Warning temperature and power failure protection ..... 8
Maintenance .................................................................. 9
Maintenance ............................................................... 9
Replacing the unit ....................................................... 9
Replacing the lamp unit ............................................ 12
How to check lamp runtime ...................................... 13
Cleaning ................................................................... 14
Cleaning the projection lens ..................................... 14
Cleaning the projector cabinet .................................. 14
Security Function Notice.............................................. 15
Resetting procedure ................................................. 15
Standby Mode Notice .................................................. 16
Mechanical Disassembly ............................................. 17
Optical Parts Disassembly ........................................... 24
Servicing Notice .......................................................... 30
Note on main board replacement ............................. 30
Adjustments ................................................................. 31
Adjustments after parts replacement ........................ 31
Optical Adjustments ..................................................... 32
Contrast adjustment.................................................. 32
Condenser lens (OUT) adjustment ........................... 33
Relay lens (OUT) adjustment .................................. 34
Electrical Adjustments ................................................. 35
Service adjustment menu operation ......................... 35
Circuit adjustments ................................................... 36
Test points and locations .......................................... 40
Service adjustment data .......................................... 41
Chassis Block Diagrams .............................................. 58
Chassis overview ...................................................... 58
System control .......................................................... 59
Power supply & protection circuit .............................. 60
Fan control circuit ..................................................... 61
Troubleshooting ........................................................... 62
Indicators and projector condition ............................. 62
No power .................................................................. 63
No picture ................................................................. 64
No sound .................................................................. 65
Control Port Functions ................................................. 66
Scaler I/O port functions (PW190) ............................ 66
IC Block Diagrams ....................................................... 67
Exploded Views & Parts List .................................. SPL-1
Exploded Views ..................................................... SPL-2
Mechanical Parts List .......................................... SPL-10
Electrical Parts List .............................................. SPL-12
Schematic Diagram & Circuit Boards Diagram ....... DIA-1
Pin description of diode, transistor and IC ........... DIA-2
Schematic Diagrams .............................................. DIA-3
Circuit Boards Diagram .......................................... DIA-9
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