Service Manuals, User Guides, Schematic Diagrams or docs for : MITSUBISHI Proj TV V25_Training_Manual v25_training_manual_162

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.




Image preview - the first page of the document
v25_training_manual_162


>> Download v25_training_manual_162 documenatation <<

Text preview - extract from the document
                                              T   ECHNICAL
                                                 RAINING

                                              2004
Projection Television
Technical Training &
Troubleshooting Manual




                    V25



              V25        V25+       V25++
           WS-48515    WS-55615 WS-55815
           WS-55515    WS-65615 WS-65815
           WS-65515    WS-73615



      MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
                         V25 CHASSIS
       TECHNICAL TRAINING AND TROUBLESHOOTING MANUAL

                                          TABLE of CONTENTS
Introduction
 Models ............................................................................................................... 1
 Features ............................................................................................................... 2
 CableCARDTM ...................................................................................................... 3
 HDMITM ............................................................................................................... 7

Chapter 1... Disassembly and Service
 Disassembly Procedures .................................................................................. 1-1
 PCB & Main Component Locations ................................................................... 1-3
 DM3 PCB Replacement .................................................................................... 1-5
 Composite Cabinet ............................................................................................ 1-6

Chapter 2... Alignment Procedures
 Service Menu Access Codes ............................................................................. 2-1
 Initial Setup ........................................................................................................ 2-1
 Circuit Adjustment Mode .................................................................................... 2-3
 Convergence Adjustment Mode ......................................................................... 2-5
 Alignment Data Storage Locations ..................................................................... 2-6

Chapter 3... Power Supply
 Power Supplies ................................................................................................. 3-1
 Standby Power Supply ....................................................................................... 3-2
 Switched Power Supply ..................................................................................... 3-3

Chapter 4... Control Circuitry
 Basic uPC Requirements .................................................................................. 4-1
 Reset Circuitry ................................................................................................... 4-2
 Input Command Circuitry .................................................................................. 4-3
 Control Block Diagram ....................................................................................... 4-4
 Parallel Inputs & Outputs .................................................................................... 4-8




                                                          I
Chapter 5 ... Video/Color Circuitry
 Overall Block Diagram ....................................................................................... 5-1
 RGB CRT Drive & Protect Circuitry .................................................................... 5-2

Chapter 6 ... Sync, Deflection and High Voltage
 Overall Block Diagram ...................................................................................... 6-1
 Sync Signal Path ............................................................................................... 6-2
 Vertical Deflection .............................................................................................. 6-3
 Horizontal Deflection .......................................................................................... 6-4
 Deflection Loss Detection .................................................................................. 6-5
 High Voltage & HV Regulation............................................................................ 6-6
 X-Ray Protect .................................................................................................... 6-7

Chapter 7... Convergence Circuitry
 Overall Block Diagram ...................................................................................... 7-1
 Waveform Generator and D/A Converter .......................................................... 7-2
 LPF and Summing Amplifiers ............................................................................ 7-3
 Convergence Output Circuitry ........................................................................... 7-4

Chapter 8 ... Sound Circuitry
 Overall Block Diagram ...................................................................................... 8-1
 Digital Audio Out ................................................................................................ 8-2

Chapter 9 ...Troubleshooting Tips
 Using the Front Panel LED ................................................................................. 9-1
 Disabling the CRT Protection Circuits ................................................................ 9-2




                                                        II
                                             Introduction
                                Chassis      V25        V25+   V25++
                                 48" W WS-48515
                         Screen 55" W WS-55515 WS-55615 WS-55815
                          Size   65" W WS-65515 WS-65615 WS-65815
                                 73" W                WS-73615
                                        Table 1: V25 Models



The V25 Chassis is carried in 4 screen sizes with 3 fea-               



◦ Jabse Service Manual Search 2019 ◦ Jabse Pravopis ◦ Other service manual resources online : FixyaeServiceinfo