Sanyo PLC HF10000L - Page 180

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-180-

IC Block Diagrams

● NJM2671 <Stepping Motor Drive, IC7621>

● M62393 <DAC, IC7802>

Table of Contents

Service Manual1
Table of Contents2
Contents2
Safety Instructions3
- Safety Precautions3
- Product Safety Notice3
- Service Personnel Warning3
Specifications4
Circuit Protections5
- Fuse5
- Thermostats (SW903, SW904)5
- Mechanical Sensor Switches (SW902, SW6581)6
- Temperature Sensors, Wind Sensors7
- Power Failure and Fan Lock Detection8
Maintenance9
- Filter Instructions9
- Replacing the Filter Cartridge10
- Resetting the Filter Counter11
- Resetting the Scroll Counter11
- Lamp Management12
- Lamp Replacement13
- Checking the Projector Used Time and Lamp Used Time14
- Quick Maintenance15
- Cleaning the Optical Parts16
- Cleaning the Projection Lens16
- Cleaning the Projector Cabinet16
Security Function Notice17
Lens Mounting18
Lens Mounting21
Mechanical Disassembly22
- Mechanical Disassembly Flow Chart22
- Mechanical Disassembly23
Optical Parts Disassembly39
- Lcd Panel Type Check41
- Mirror Assy Removal46
- Optical Parts Locations in the Optical Unit48
- Optical Lamp Unit Top Removal49
- Optical Parts Locations in the Optical Lamp Unit50
Adjustments51
- Adjustments after Parts Replacement51
- Note on Main Board Replacement51
Optical Adjustments52
- Optical Adjustment Location52
- Before Adjustment53
- Optical Center Adjustment55
- Relay Lens Adjustment57
- PBS Adjustment59
- Contrast Adjustment60
- Back Focus Adjustment61
- Convergence Adjustment62
  - Adjustment Tool Installation63
  - Adjustment Tool Removal64
- Adjustment65
Electrical Adjustments66
- Service Adjustment Menu Operation66
- Circuit Adjustments67
- White Balance Adjustment70
- Test Points and Locations71
- Service Adjustment Data Table72
- Electrical Adjustment73
Chassis Description147
- Chassis over View147
- Boards Connection148
Troubleshooting149
- No Picture149
- Main Board151
- No Power153
- Power Supplies to Boards154
- Power (AC)155
- Power (DC)155
- Power (PFC)156
- Power Supply and Power Fail Detection157
- Power Drive and Power Failure Signals160
- Fan Control161
- Temperature Abnormality162
- Power Lens and Shutter System and Abnormality163
- Lamp Abnormality164
- Power Failure Detection System165
- Error Information Table165
- Error History Log166
- Diagnosis of Power Failure with RS-232C Port167
- Diagnosis Procedure167
- Indicators and Projector Condition168
Serial Control171
- Serial Control Interface171
- Status Read Command172
Control Port Functions173
IC Block Diagrams176
Parts Location Diagrams182
Mechanical Parts List196
Electrical Parts List198
Diagrams & Drawings253
Parts Description and Reading in Schematic Diagram254
Schematic Diagrams257
Printed Wiring Board Diagrams271

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