Table Of Contents - Canon LV-S4 Service Manual

■ Contents
The different points between the previous model LV-S3 and the new model LV-S4 as follows;
- The electrical circuit (the LCD panels and the IN/OUT terminals)
- The lamp, lamp ballast and fan controls
- The optical parts
LV-S3
RESET
VIDEO IN
RGB IN / RGB IN
COMPUTER /
COMPONENT IN
COMPONENT COMPONENT
AUDIO IN
■ Safety Instructions ................................................................................................3
■ Specifications ........................................................................................................4
■ Circuit Protections ................................................................................................5
■ Lamp Replacement ..............................................................................................7
■ Mechanical Disassemblies ....................................................................................8
■ Optical Parts Disassemblies ..............................................................................16
■ LCD Panel/Prism Ass'y Replacement ................................................................21
■ Adjustments after Parts Replacement ................................................................22
■ Optical Adjustments ............................................................................................23
■ Electrical Adjustments ........................................................................................26
■ Chassis Block Diagrams ....................................................................................35
■ Power Supply Lines ............................................................................................38
■ Troubleshooting ..................................................................................................39
■ Control Port Functions ........................................................................................42
■ Waveforms ..........................................................................................................46
■ Cleaning ..............................................................................................................47
■ IC Block Diagrams ..............................................................................................48
■ Parts description and reading in schematic diagram ........................................ A2
■ Schematic diagrams .................................................................................... A3-A6
■ Printed wiring board diagrams .................................................................... A7-A8
■ Pins description of ICs, transistors, diodes ...................................................... A9
S-VIDEO IN
SERVICE PORT
AUDIO
IN
● Fuse ..........................................................................................................5
● Thermal switch ..........................................................................................5
● Lamp cover switch ....................................................................................5
● Electrical Parts Location ..........................................................................14
● Connection around the Main Board..........................................................15
● Service Adjustment Menu Operation........................................................26
● Circuit Adjustments ..................................................................................27
● Service Adjustment Data Table ................................................................30
● Test Points and Locations ........................................................................34
● No Power ..................................................................................................39
● No Picture ................................................................................................40
● No Sound ..................................................................................................41
Drawings & Diagrams
- NOTE -
RESET
................................................................ A1-A10
-2-
LV-S4
AUDIO OUT
SERVICE PORT
VIDEO AUDIO IN
(VARIABLE)
COMPUTER/ S-VIDEO/ COMPUTER/ S-VIDEO/
MONITOR OUT MONITOR OUT
COMPONENT IN COMPONENT IN