Sanyo PLC-XTC50L, Service Manual

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Contents
SERVICE MANUAL ....................................................... 1
Contents ........................................................................ 2
Safety Instructions ......................................................... 3
Safety Precautions ..................................................... 3
Product Safety Notice ................................................. 3
Service Personnel Warning ........................................ 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Fuse ............................................................................ 5
Thermal protectors (SW901, SW902) ........................ 5
Mechanical sensor switches (SW67A, SW7641) ........ 6
Temperature sensors, wind sensors .......................... 7
Power failure and fan lock detection .......................... 8
Maintenance .................................................................. 9
Replacing the Filter Cartridge .................................... 9
Resetting the Filter Counter ..................................... 10
Resetting the Scroll Counter .................................... 10
Lamp Selection System ............................................ 11
Lamp Replacement .................................................. 12
How to check Lamp Used Time ............................... 13
Warning Message on the non-standard lamp used . 13
Cleaning ................................................................... 14
Quick maintenance ................................................... 15
Lens Installation ....................................................... 16
Using the Lens Antitheft screw ................................. 17
Security Function Notice ............................................. 18
Mechanical Disassembly............................................. 19
Mechanical disassembly flow chart .......................... 19
Mechanical disassembly .......................................... 20
Optical Parts Disassembly .......................................... 34
Adjustments ................................................................. 44
Adjustments after Parts Replacement ...................... 44
Note on Main Board Replacement ........................... 44
Service Adjustment Menu Operation ....................... 45
Optical Adjustment ...................................................... 46
1. Optical axis adjustment ........................................ 47
2. Mirror adjustment ................................................. 50
3. Contrast adjustment ............................................. 51
Electrical Adjustments ................................................. 52
Circuit Adjustments .................................................. 52
Test Points and Locations ........................................ 55
Service Adjustment Data Table ................................ 56
Chassis Description .................................................... 73
Chassis over view ..................................................... 73
Input & signal processing stage ............................... 74
Audio output stage ................................................... 75
Lamp control stage ................................................... 76
Fan control stage ...................................................... 77
Motor control stage ................................................... 78
Bus control stage ...................................................... 79
LED drive & RC control stage ................................... 80
Power supply & power failure circuit ......................... 81
Indicators and Projector Condition ........................... 82
Power failure detection system ................................ 85
Error information table .............................................. 85
Power failure detection tree ...................................... 86
Sensor & detection switches .................................... 87
Error History Log ...................................................... 88
Diagnosis of Power Failure with RS-232C port ........ 89
Diagnosis procedure ................................................ 89
Serial Control Interface ............................................. 90
Control Port Functions................................................. 92
System Control I/O Port Functions (PW392, IC301) 92
I/O Expander (TE7783, IC4801) .............................. 93
FPGA (XC3S50A, IC5201) ....................................... 94
IIC Bus D/A Converter (M62393FP Fan Control,
IC7971) ..................................................................... 94
Waveform .................................................................... 95
IC Block Diagrams....................................................... 96
Parts Location Diagrams ........................................... 105
Mechanical Parts List .................................................116
Electrical Parts List .....................................................118
Diagrams & Drawings .................................................. A1
Parts description and reading in schematic diagram ..A2
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams ................................. A11
Pin description of diode, transistor and IC ................ A17
Note on Soldering ...................................................... A18