Mitsubishi Electric WS-48513 Manuale di programmazione

MITSUBISHI ELECTRIC

MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.

2003

ECHNICAL

RAINING

Projection Television

Technical Training &

Troubleshooting Manual

WS-48613 WS-65713 WS-55813

WS-55613 WS-73713 WS-65813

WS-65613

V23

WS-48513

WS-55513

WS-65513

WS-73513

V23+ V23++ V23+++

V23

2003

ECHNICAL

RAINING

V23 Chassis

Projection Television

Technical Training &

Troubleshooting Manual

Introduction ... New Technologies

Models ............................................................................................................... 1

Features ............................................................................................................... 2

NetCommand™ 3.0 ............................................................................................. 3

Five Format Memory Card Reader ....................................................................... 4

PerfectColor™ ...................................................................................................... 5

MonitorLink™ ....................................................................................................... 6

Service Code Chart ............................................................................................ 12

Chapter1 ... Disassembly and Service

Disassembly Procedures ................................................................................... 1-1

DM Replacement .............................................................................................. 1-2

PCB & Main Component Locations ................................................................... 1-4

Convergence Output IC Replacement .............................................................. 1-5

Composite Cabinet ............................................................................................ 1-6

Chapter 2 ... Alignment Procedures

Initial Setup ....................................................................................................... 2-1

Circuit Adjustment Mode ................................................................................... 2-3

ConvergenceAdjustment Mode ......................................................................... 2-5

Alignment Data Storage Locations .................................................................... 2-6

Chapter 3 ... Power Supply

Low Energy Power Supply ................................................................................ 3-1

Standard Standby Power Supply ....................................................................... 3-4

Time Shift Recording Power Supply .................................................................. 3-2

Switched Supplies ............................................................................................. 3-7

Troubleshooting................................................................................................. 3-8

Chapter 4 ... Control Circuitry

Basic uPC Requirements .................................................................................. 4-1

Reset Circuitry ................................................................................................... 4-2

Input Command Circuitry................................................................................... 4-3

Serial Data Lines ............................................................................................... 4-4

Parallel Input Lines ............................................................................................ 4-5

Parallel Outputs ................................................................................................. 4-7

V23 CHASSIS

TECHNICAL TRAINING AND TROUBLESHOOTING MANUAL

TABLE of CONTENTS

Chapter 5 ... Video/Color Circuitry

Overall Block Diagram ....................................................................................... 5-1

PCB-Terminal .................................................................................................... 5-2

PCB-Signal ........................................................................................................ 5-3

RGB CRT Drive & Protect Circuitry ................................................................... 5-4

Digital Signal Path ............................................................................................. 5-5

Monitor Out ....................................................................................................... 5-6

Chapter 6 ... Sync, Deflection and High Voltage

Overall Block Diagram ....................................................................................... 6-1

Sync Signal Path ............................................................................................... 6-2

Vertical Deflection ............................................................................................. 6-5

Horizontal Deflection ......................................................................................... 6-5

Deflection Loss Detection.................................................................................. 6-7

High Voltage & HV Regulation .......................................................................... 6-8

X-Ray Protect .................................................................................................... 6-9

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

Signal Path ........................................................................................................ 8-2

Chapter 9 ...Troubleshooting Tips

Using the Front Panel LED................................................................................ 9-1

Introduction

The V23 Chassis is carried in the Gold, Gold Plus,

Platinum and Diamond series models for 2003 and

2004. This full featured, integrated HDTV chassis

represents the latest technologies in CRT based pro-

jection television. A breakdown of V23 models is

shown in Table 1.

Features

Table 2 shows some of the major features by model

category. Some of the features are carried over from

previous years, some have been improved upon and

some are totally new. In addition to all the user fea-

tures, the V23 chassis includes many serviceability

features.

Carry Over Features

•IEEE1394, FireWire

•DTV Link

•VGA Input

•QuadField Focus

•TruFocus Lenses

•Gold Plated Jacks

•2 Piece Cabinets (65" & 73")

•Fine Pitch Lenticular Screen

•Anti-glare DiamondShield

Series Gold Gold Plus Platinum Diamond

Chassis V23 V23+ V23++ V23+++

48" W WS-48513 WS-48613

55" W WS-55513 WS-55613 WS-55813

65" W WS-65513 WS-65613 WS-65713 WS-65813

73" W WS-73513 WS-73713

Screen

Size

Table 1: V23 Models

Improved Features

•3rd Generation HDTV Receiver

•NetCommand 3.0 with IR Learning

•PerfectColor - All Inputs and Signal Types

•AMVP™ Improved Performance

•9" CRTs now available in a 65" Model

•Coaxial and 2-way speaker systems

•Contemporary cabinet in a 55" Model

New Features

•5 Format Memory Card Reader

•MonitorLink™ Input

•Low Energy Mode

Serviceability Features

•Modular design with "Light Box"

•Self Diagnostics

•Serviceable to Component or PCB level.

•ATSC Tuner/Decoder circuitry separated

from DM assembly.

•Reduction in number of stand-up PCBs.

•Service Adjustment Mode Data Reset.

This section will provide further explanation on the

following features that are either new or may have

the most impact on service:

1) NetCommand 3.0

2) 5 Format Memory Card Reader

3) PerfectColor

4) MonitorLink

Feature Explaination

ATSC and Unscrambled QAM Reception

Greater Sensitivity

NetCommand™ 3.0 Home Theater Control by Firewire or IR

Five-Format Memory Card Reader For viewing JPEG digital photos and listening to

MP3 or WMA audio recordings.

AMVP (Advanced Multimedia Video

Processor)

8 Screen Formats, Improved Line Doubling and

Noise Reduction

FireWire/IEEE1394Digital Home Networking Interface.

DTV-LINK Standard for future FireWire interfaces.

PerfectColor™ Individual Control of 6 Colors

Low Energy Mode Reduced Power Consumption in Standby

MonitorLink™ Input Digital Video Input

VGA Input 640x480 - 60HZ

QuadField Focus™ Magnetic Focus Assembly on CRT Neck.

Results in smaller electron beam.

Two-way Coaxial Speakers WS-55613 & WS-65613. Improved Audio.

Tru-Focus™ Lenses Improved and more uniform focus.

Two-way Speaker System 6" Woofer & 1.5" Tweeter for improved audio.

Gold Plated Jacks Gives high quality connections.

High Gloss Black.

Composite Back has Reduced Weight

Fine-Pitch Lenticular Screen Best Horizontal Resolution

Anti-glare DiamondShield™ Reduction in Reflections

9" CRT (WS-65813) Improved Brightness and Resolution

9" CRTs in all 73" Models Improved Brightness and Resolution

2 Piece Cabinet (65" & 73" Models) Simplifies Delivery

3rd Generation HDTV Receiver

V23 Features

V23+ Features

(Additional Features)

Other Features

Table 2: Features

Contemporary Cabinet

V23++ Features

(Additional Features)

V23+++ Features

(Additional Features)

NetCommand 3.0

NetCommand allows most common

home theater products to be connected

and controlled by way of the TV's re-

mote control by simply selecting on-

screen icons. See Figure 1.

The control interface can be by one of

two means.

•IEEE1394/Firewire

•Infrared (IR Blaster)

The 3rd generation of NetCommand offers additional

functionality and a simplier user interface.

When using the Firewire, NetCommand is "plug-

and-play." For the end user, it makes all digital video,

audio and control connections with one cable (Fig-

ure 2).

All other configuration is automatic. For control, the

industry standard sofware supported includes:

•AV/C - Includes common functions such as

Stop, Play, FF, RWD, etc.

•HAVi - Includes AV/C but also allows a

higher level of sofware communication for a

more interactive interface.

When using IR, an IR blaster must be connected to

the TV and placed in front of the device to be con-

trolled. The TV must then be configured so the

proper IR codes will be used.

Like previous versions of NetCommand,

an "IR Library" is loaded in the TV's soft-

ware so that most common devices can

be selected for immediate use. New for

NetCommand 3.0 is the "Learning" fea-

ture. For devices that are not included in

the IR Library, NetCommand can memo-

rize the IR code from that devices remote.

A series of menus walks the customer

through the learning process. Once

loaded, the TV can then control the de-

vice using the IR blaster. This makes

NetCommand almost 100% compatable

with all other IR controlled devices.

Figure 1: NetCommand Icons

Figure 2: FireWire Connection

Figure 3: IR Learning Menu

5 Format Memory Card Reader

Digital music and photography can now be enjoyed

in the home theater environment thanks to the

memory card reader featured in the V23 chassis.

When the user inserts a memory card into any one

of the four card reader slots on the front of the set,

NetCommand will take control, allowing a slide

show or giving a music play list.

The memory card formats supported are:

•Memory Stick™

•MultiMedia Card™

•SD (Secure Digital)

•SmartMedia™

•CompactFlash®

When a memory card is inserted into the correct slot,

an LED next to the slot will light up. Then, after the

slot is selected using the DEVICE button on the re-

mote, the Memory Card Screen, Figure 4, will be

automatically displayed.

An overview of remote push buttons and their func-

tions is given in Table 3. Other remote functions are

explained within the menus. Full instructions are

included in the Owner's Guide.

For Slideshow, press PLAY.

For Thumbnails, press GUIDE.

To redisplay this menu or to

setup, press DEVICE MENU.

For Playlist, press AUDIO

Figure 4: Memory Card Screen

Figure 5: JPEG Thumbnails

Figure 6: Audio Playlist

Figure 7: Media Setup

BUTTON

FUNCTION

VIDEO Switch from Audio Play List to JPEG Thumbnails (Figure 5)

AUDIO Switch from JPEG Thumbnails to Audio Playlist (Figure 6)

DEVICE

MENU Display the Media Setup Menu (Figure 7 )

PLAY Start the Slideshow or play audio

GUIDE Return to the Thumbnail menu or the Audio Playlist while in Play

PAUSE

Pauses or resumes playback

Skips to the next slide or song

REW

Returns to the previous slide or song

STOP

Stops slide show or play and returns to Memory Card Screen

FORMAT

Rotates slide 90° each time it is pressed

Table 3: Remote Functions

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