Panasonic PT-TW230U

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IC Block Diagrams

● L3E07111 <Digital Gamma and Driver, IC401>

● MB95F353EPFT <Sub CPU, IC9885>

Main Page

Lcd Projector1
Table of Contents2
Contents2
- Important Safety Notice3
- General Guidelines4
- Leakage Current Check4
- Safety Precautions4
Safety Instructions3
Specifications5
Circuit Protections7
- Thermal Fuse(SW902)7
- Fuse(F601)7
- Lamp Cover Switch(SW901)7
- Warning Temperature and Power Failure Protection8
- Led Indicator8
Maintenance9
- Replacing the Unit9
- Replacing the Lamp Unit12
- How to Check Lamp Runtime13
- Cleaning14
- Cleaning the Projection Lens14
- Cleaning the Projector Cabinet14
- Function Description15
- Resetting Procedure15
Security Function Notice15
Standby Mode Notice16
Mechanical Disassembly17
Projection Lens Removal24
Optical Parts Disassembly24
- Panel Type Check27
- Optical Unit Top Removal28
- Locations and Directions29
Servicing Notice30
- Note on Main Board Replacement30
- Adjustment Data Setting30
Adjustments31
- Adjustments after Parts Replacement31
Optical Adjustments32
- Contrast Adjustment32
- Condenser Lens (OUT) Adjustment33
- Relay Lens (OUT) Adjustment34
Electrical Adjustments35
- Service Adjustment Menu Operation35
- Circuit Adjustments36
- Gamma Correction Adjustment39
- Test Points and Locations40
- Main Board40
- Service Adjustment Data41
Chassis Block Diagrams58
- Chassis Overview58
- System Control59
- Power Supply & Protection Circuit60
- Fan Control Circuit61
Troubleshooting62
- Indicators and Projector Condition62
- No Power63
- No Picture64
- No Sound65
Control Port Functions66
- Scaler I/O Port Functions (PW190)66
IC Block Diagrams67
Exploded Views & Parts List71
Exploded Views71
Mechanical Parts List80
Electrical Parts List82
Schematic Diagram & Circuit Boards Diagram95
Pin Description of Diode, Transistor and IC96
Schematic Diagrams97
Circuit Boards Diagram103

Panasonic PT-TW230U

Table of Contents

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