Table Of Contents - Sanyo PLC-XT35 Service Manual

Contents
SERVICE MANUAL ....................................................... 1
Contents ........................................................................ 
Safety Instructions ......................................................... 3
Safety Precautions ..................................................... 3
Product Safety Notice ................................................. 3
Service Personnel Warning ........................................ 3
Specifications ................................................................ 4
Circuit Protections ......................................................... 5
Fuse ............................................................................ 5
Thermostat (SW901) .................................................. 6
Lamp cover switch (SW90) ....................................... 6
Temperature sensors (TH901, TH90, IC8841) ......... 7
Power failure and fan lock detection ........................... 8
Maintenance .................................................................. 9
Cleaning the Air Filter ................................................. 9
Resetting the Filter Counter ........................................ 9
Lamp Replacement .................................................. 10
Resetting the Lamp Counter ..................................... 11
How to check Lamp Used Time ................................ 11
Quick maintenance ................................................... 1
Prohibition of motor control ....................................... 13
Security Function Notice .............................................. 14
Mechanical Disassembly ............................................. 15
Optical Parts Disassembly ........................................... 33
Optical parts locations and directions in the Optical
Unit ........................................................................... 45
Adjustments ................................................................. 48
Adjustments after Parts Replacement ...................... 48
Optical Adjustments ..................................................... 49
1. Optical axis adjustment ........................................ 50
. Contrast adjustment (POL) ................................... 54
3. Contrast adjustment (WV) .................................... 57
Electrical Adjustments ................................................. 58
Service Adjustment Menu Operation ........................ 58
Memory IC (IC1391) Replacement ........................... 58
Circuit Adjustments ................................................... 59
Test Points and Locations ........................................ 6
Service Adjustment Data Table ................................ 63
Chassis Description ..................................................... 80
Chassis over view ..................................................... 80
Input & signal processing stage ................................ 81
LCD drive stage ........................................................ 8
Audio signal processing stage .................................. 83
Lamp control stage ................................................... 84
Fan control stage ...................................................... 85
Motor control stage ................................................... 86
Bus control stage ...................................................... 87
LED drive & RC control stage ................................... 88
Power supply & power failure circuit ......................... 89
Indicators and Projector Condition ........................... 90
Power failure detection system ................................ 9
Error information table .............................................. 9
Power failure detection tree ...................................... 93
Error History Log ...................................................... 94
Diagnosis of Power Failure with RS-3C port ........ 95
Diagnosis procedure ................................................. 95
Control Port Functions ................................................. 96
System Control I/O Port Functions (PW190) ............ 96
Parallel I/O Expander Port Functions (TE7783) ....... 97
IIC Bus D/A Converter Port Functions (M6334) ..... 98
Parallel Bus Input Expander Port Functions
(TC74LCX541) ......................................................... 98
Waveform .................................................................... 99
Cleaning .................................................................... 100
IC Block Diagrams ..................................................... 101
Electrical Parts List .................................................... 109
Electrical Parts Location ......................................... 110
Electrical Parts List ................................................. 111
Mechanical Parts List ................................................ 13
Cabinet Parts Location ........................................... 13
Mechanical Parts List ............................................. 138
Diagrams & Drawings ..................................................A1
Parts description and reading in schematic diagram ...A
Schematic Diagrams ...................................................A3
Printed Wiring Board Diagrams .................................A11
Pin description of diode, transistor and IC .................A15
Note on Soldering ......................................................A16
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