Equipo de la información:

Mitsubishi WS-55857 TV
Fabricante:
Mitsubishi
Modelo: WS-55857
Fecha: 2000
Categoría: Audio, Video, Televisión, Multimedia
Grupo: TV
Descripción: PROJECTION TELEVISION
Información:
                                    

Estos manuales están disponibles para los equipos de arriba:

Mitsubishi -- WS-55857 -- Manual de servicio
Nombre de archivo: Mitsubishi-1332-Manual-Page-1-Picture
Tipo de Manual: Manual de servicio
Páginas: 74
Tamaño: 1.21 Mbytes (1272337 Bytes)
Idioma: Inglés
Revisión:
Manual-ID/Number:
Fecha: 2000
Calidad: Documento electrónico, sin análisis, muy bien legible.
Fecha de envío:
MD5: b691f83ff8c4d037613febed48ae71a9
ed2kID: 04957ec05ccfdb090520f98bc0aa9c67
Descargas: 9246 desde 24 January 2009
Información:
This service manual provides service instructions for PTV Models WT-46807, WS-55807 and WS-65807 which
use the V17 chassis, PTV Models WS-559857, and WS-65857 which use the V17+ chassis, and PTV Models
WS-55907, WS-65907 and WS-73907 which use the V17++ chassis. Service personnel should read this manual
thoroughly before servicing these chassis.
This service manual includes:
    1. Assembly and disassembly instructions for the front and rear cabinet components.
    2. Servicing of the Lenticular Screen and Fresnel Lens.
    3. Servicing printed circuit boards (PCBs).
    4. CRT replacement procedure.
    5. Electrical adjustments.
    6. Chip parts replacement procedures.
    7. Circuit path diagrams.
The parts list section of this service manual includes:
    1. Cabinet and screen parts.
    2. Electrical parts.
Schematic and block diagrams of the above listed models are included in this service manual for better under-
standing of the circuitry. PCB drawings are also included for easy location of parts and test points.
Mitsubishi-1332-Manual-Page-1-Picture
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Mitsubishi -- WS-55857 -- Manual de servicio, diagrama cirquit sólo
Nombre de archivo: Mitsubishi-2987-Manual-Page-1-Picture
Tipo de Manual: Manual de servicio, diagrama cirquit sólo
Páginas: 16
Tamaño: 4.38 Mbytes (4597369 Bytes)
Idioma: Inglés
Revisión:
Manual-ID/Number:
Fecha: 2000
Calidad: Documento electrónico, sin análisis, muy bien legible.
Fecha de envío:
MD5: 3f95be7c567b3374b9ca8eccc002f7f8
ed2kID: 315727b9a2ab42cd838698bedd01e7b2
Descargas: 1674 desde 03 January 2012
Información:
PART 2
SCHEMATIC DIAGRAMS

Overall PCB Block Diagram ...................................... 1
PCB-POWER............................................................. 2
PCB-MAIN ................................................................. 3
PCB-SIGNAL (AV/I-O) .............................................. 4
PCB-SIGNAL (MICRO) ............................................. 5
PCB-SIGNAL (VC/SW) ............................................. 6
PCB-2HDW (IN) ........................................................ 7
PCB-2HDW (MAIN) ................................................... 8
PCB-2HDW (OUT) .................................................... 9
PCB-TERMINAL ...................................................... 10
PCBs - CONV. GEN./JUNGLE ................................ 11
PCB-3DYC/MAIN DECODER .................................. 12
PCBs - CRT/CONTROL/PREAMP/DBF/
FRONT/DISPLAY ........................................ 13
PCB-BMP (1)........................................................... 14
PCB-BMP (2)........................................................... 15
PCB LAYOUT DIAGRAMS....................................... 16

Refer to PART 1 for:
• Specifications
• Safety Precautions
• Disassembly
• CRT Replacement
• Electrical Adjustments
• Parts List
• Block Diagrams
Mitsubishi-2987-Manual-Page-1-Picture
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Mitsubishi -- WS-55857 -- Manual de servicio
Nombre de archivo: Mitsubishi-4631-Manual-Page-1-Picture
Tipo de Manual: Manual de servicio
Páginas: 99
Tamaño: 12.45 Mbytes (13050349 Bytes)
Idioma: Inglés
Revisión:
Manual-ID/Number:
Fecha: 2000
Calidad: Documento electrónico, sin análisis, muy bien legible.
Fecha de envío:
MD5: 35b77684bd7fda69fdec847046556601
ed2kID: ac115c510e92205a0e4aeaaafbfaa85a
Descargas: 1293 desde 30 September 2013
Información:
This service manual provides service instructions for PTV Models WT-46807, WS-55807 and WS-65807 which
use the V17 chassis, PTV Models WS-559857, and WS-65857 which use the V17+ chassis, and PTV Models
WS-55907, WS-65907 and WS-73907 which use the V17++ chassis. Service personnel should read this manual
thoroughly before servicing these chassis.
This service manual includes:
1. Assembly and disassembly instructions for the front and rear cabinet components.
2. Servicing of the Lenticular Screen and Fresnel Lens.
3. Servicing printed circuit boards (PCBs).
4. CRT replacement procedure.
5. Electrical adjustments.
6. Chip parts replacement procedures.
7. Circuit path diagrams.
The parts list section of this service manual includes:
1. Cabinet and screen parts.
2. Electrical parts.
Schematic and block diagrams of the above listed models are included in this service manual for better understanding
of the circuitry. PCB drawings are also included for easy location of parts and test points

INTRODUCTION ............................................................................................................................... 5
PRODUCT SAFETY NOTICE ........................................................................................................... 5
SAFETY PRECAUTIONS ................................................................................................................. 6
DISASSEMBLY
Cabinet Disassembly (Front View)
WT-46807 ..................................................................................................................................... 7
WS-55807 / WS-65807 .................................................................................................................. 8
WS-55857 / WS-65857 .................................................................................................................. 9
WS-55907 / WS-65907 / WS-73907............................................................................................ 10
Cabinet Disassembly (Rear View)
WT-46807 ................................................................................................................................... 11
WS-55807 / WS-55857 / WS-55907 / WS-65807 / WS-65857 /
WS-65907 / WS-73907 ................................................................................................................ 12
Cabinet Separation Procedure WS-65807 / WS-65857 / WS-65907 / WS-73907 ....................... 13
SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS
Lenticular Screen and Fresnel Lens Removal
WS-55807 / WS-65807 ....................................................................................................... 14
WS-55857 / WS-55907 / WS-65857 / WS-65907 / WS-73907 / WT-46807 ...................... 15
Lenticular Screen and Fresnel Lens Installation .................................................................... 16
SERVICING THE DIAMONDSHIELDTM r
DiamondShieldTM Removal / Installation ...................................................................................... 17
SERVICING PCBs
PCB Locations and Chassis Removal ......................................................................................... 18
Main Component Locations ......................................................................................................... 18
CRT REPLACEMENT
CRT Removal .............................................................................................................................. 19
CRT Installation ........................................................................................................................... 20
ELECTRICAL ADJUSTMENTS
Test Equipment ............................................................................................................................ 22
Initial Setup ................................................................................................................................. 22
Self Diagnostics ........................................................................................................................... 24
Circuit Adjustment Mode .............................................................................................................. 24
Convergence Adjustment Mode ................................................................................................... 26
E2PROM Replacement................................................................................................................ 28
Adjustment Items List .................................................................................................................. 28
Adjustment Test Points ................................................................................................................ 31
Adjustment Procedures ................................................................................................................ 32
Audio Circuit ....................................................................................................................... 32
High Voltage Regulation ..................................................................................................... 33
Main/Sub Y Level................................................................................................................ 33
Side by Side Sub Picture Tint ............................................................................................. 34
Side by Side Sub Picture Color .......................................................................................... 34
CRT Cutoff .......................................................................................................................... 35
White Balance (NTSC) ....................................................................................................... 35
White Balance (HD) ............................................................................................................ 36
Cb, Cr Offset ....................................................................................................................... 36
Black Level ......................................................................................................................... 37
Sub Contrast ....................................................................................................................... 37
Dynamic Focus Preset ........................................................................................................ 38
Electrostatic Focus.............................................................................................................. 38
Lens Focus.......................................................................................................................... 39
Character Position .............................................................................................................. 39
Deflection/Convergence Geometry Presets........................................................................ 40
Deflection Circuit Geometry Adjustments ........................................................................... 41
Convergence Circuit Geometry Adjustments ...................................................................... 42
Centering and Static Convergence ..................................................................................... 43
Coarse Convergence Adjustments ..................................................................................... 44
Fine Convergence Adjustments .......................................................................................... 45
CHIP PARTS REPLACEMENT ....................................................................................................... 46
REPLACEMENT PARTS
Parts Ordering .............................................................................................................................. 47
Critical and Warranty Parts Designation ...................................................................................... 47
Parts Tolerance Codes ................................................................................................................. 47
Quick Reference List ................................................................................................................... 48
Service Parts List ......................................................................................................................... 49
CIRCUITRY BLOCK DIAGRAMS
Standby Supply Regulator ........................................................................................................... 66
Switched Supply Regulator .......................................................................................................... 67
Video / Color A/V Switch Circuit .................................................................................................. 68
Video / Color Signal Path ............................................................................................................. 69
Sync Signal Path ......................................................................................................................... 70
Deflection / HV ............................................................................................................................. 71
X-Ray Protect.............................................................................................................................. 71
Sound Circuit ............................................................................................................................... 72
Convergence............................................................................................................................... 73
Control Circuit .............................................................................................................................. 74
Section 2 .... Schematic Diagrams
SCHEMATIC DIAGRAMS
Overall Block Diagram ................................................................................................................... 1
PCB-POWER................................................................................................................................ 2
PCB-MAIN .................................................................................................................................... 3
PCB-SIGNAL (AV/I-O .................................................................................................................... 4
PCB-SIGNAL (MICRO) .................................................................................................................. 5
PCB-SIGNAL (VC/SW) .................................................................................................................. 6
PCB-2HDW (IN)............................................................................................................................ 7
PCB-2HDW (MAIN) ....................................................................................................................... 8
PCB-2HDW (OUT)......................................................................................................................... 9
PCB-TERMINAL .......................................................................................................................... 10
PCB-CONVERGENCE GENERATOR/JUNGLE.......................................................................... 11
PCB-3DYC/MAIN DECODER ...................................................................................................... 12
PCBs - CRT/CONTROL/PREAMP/DBF/FRONT/DISPLAY ......................................................... 13
PCB-BMP (1) ............................................................................................................................... 14
PCB-BMP (2) ............................................................................................................................... 15
PCB LAYOUT DIAGRAMS ............................................................................................................. 16

Mitsubishi-4631-Manual-Page-1-Picture
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