Table of Contents
Manual Structure
Purpose of this manual....................................................................................................................3
Related manuals...........................................................................................................................3
1.  Service Overview
1-1.  Installation.....................................................................................................................1-1
1-1-1.  Installation Environment...............................................................................................1-1
1-1-2.  Power Supply...........................................................................................................1-1
1-1-3.  External Dimensions....................................................................................................1-2
1-1-4.  Matching Connectors and Cables.......................................................................................1-3
1-1-5.  Input/Output Signals of Connectors....................................................................................1-4
1-1-6.  Functions of Onboard Switches, LEDs, and Connectors...............................................................1-9
1-2.  Location of Main Parts (Boards).............................................................................................1-12
1-3.  Replacement of Main Parts..................................................................................................1-13
1-3-1.  Top Panel Assembly..................................................................................................1-13
1-3-2.  Switching Regulator...................................................................................................1-14
1-3-3.  DC Fan (80 Square)...................................................................................................1-15
1-3-4.  LCD Module..........................................................................................................1-16
1-3-5.  Fader Assembly/VR-345 Board.......................................................................................1-17
1-3-6.  CN-3403 Board........................................................................................................1-19
1-3-7.  CN-3404 Board........................................................................................................1-20
1-3-8.  MIX-54 Board.........................................................................................................1-20
1-3-9.  KY-671 Board.........................................................................................................1-22
1-3-10.  SW-1521 Board.......................................................................................................1-23
1-3-11.  Lithium Battery........................................................................................................1-24
1-3-12.  Pointer.................................................................................................................1-25
1-3-13.  Dust Protection Sheet.................................................................................................1-25
1-3-14.  Notes for Replacing Boards...........................................................................................1-26
1-4.  Periodic Check Parts.........................................................................................................1-28
1-4-1.  Cleaning the Fan......................................................................................................1-28
1-4-2.  Cleaning the Dust Protection Sheet...................................................................................1-28
1-5.  Message List.................................................................................................................1-30
1-6.  Version Update...............................................................................................................1-33
1-6-1.  Version Update from the USB Memory..............................................................................1-33
1-6-2.  Recovery in Case Installation of Installation Module Fails...........................................................1-35
1-7.  Circuit Description...........................................................................................................1-36
1-7-1.  Board Description.....................................................................................................1-36
1-7-2.  Video Signal Processing Circuit......................................................................................1-36
1-7-3.  Audio Signal Processing Circuit......................................................................................1-37
1-7-4.  Control Circuit........................................................................................................1-37
1-7-5.  Synchronization Circuit...............................................................................................1-38
1-8.  Lead-free Solder.............................................................................................................1-39
1-9.  Circuit Protection Parts......................................................................................................1-40
1-9-1.  Circuit Protection Element............................................................................................1-40
1-9-2.  Replacing Fuse........................................................................................................1-40
MCS-8M
1