Mitsubishi Electronics WS-73513 - page 47

Page 47

Purpose:

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

Purpose

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

MODELS: WS-48513 / WS-48613 / WS-55513 / WS-55613 / WS-55813 / WS-65513 / WS-65613 / WS-65713 /

WS-65813 / WS-73513 / WS-73713

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Video Signal (NTSC)

ANT-A

[On Screen Display]

12.Character Position

To position the character display horizontally.

Incorrect display position

1. Supply an NTSC signal to Ant-A and select Ant-A as the source.

2. Enter the OSD Position Mode, press “MENU-0-3-8-8”.

3. Adjust “OSDSD” to center the OSD horizontally.

4. Press “MENU” to save data and exit the mode.

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Monscope & Crosshatch

Video Input

[CRT Circuit]

11. Electrostatic Focus &

(Alignment Magnet)

To set electrostatic focus to the optimum point.

Poor focus.

Note: This adjustment must be performed after the Sub Contrast adjustment.

Alignment Magnet Adjustment

(WS-48613 / 55613 / 55813 /65613 / 65713 / 65813 / 73713 Only)

This adjustment must be performed before Static Focus Adjustment

1. Supply a Crosshatch with Center Dot signal to a Video Input.

2. Set the display format to Standard (Format button)

3. Select a Green raster using the table below.

4. Roughly adjust Green Focus VR.

5. Rotate Green Focus VR CCW so the center dot is about 10mm diameter.

6. Adjust the Green 4 Pole Magnet for the roundest center dot.

7. Set the Green Focus VR for optimum focus.

8. Repeat the procedure with a Red raster and adjust the Red 4 Pole Magnet.

9. Use silicon to lock the magnets in place.

Static Focus Adjustment (All Models)

1. Supply a Monoscope signal to a Video Input

2. Activate A/V Reset

3. Select Red, Green or Blue rasters using the table below.

3. Set the Red, Green and Blue Focus VRs for optimum focus in the center of

the picture.

Raster Color Selection

Color Raster Activation Code

Red MENU-0-3-5-9-1

Green MENU-0-3-5-9-2

Blue MENU-0-3-5-9-3

Contents

Main MITSUBISHI ELECTRIC . Design specifications are subject to change without notice. MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC. Service Manual 2003 PROJECTION TELEVISION V23 / V23+ / V23++ / V23+++ CHASSIS SPECIFICATIONS : Page CONTENTS Page INTRODUCTION Cabinet Weight and Dimensions PRODUCT SAFETY NOTICE SAFETY PRECAUTIONS 1. Cold Check 2. Hot Check ...Use the circuit shown below to perform the hot check test. Page WS-48513 / WS-48613 Rear Cabinet Disassembly WS-55513 / WS-65513 / WS-55613 / WS-65613 CABINET DISASSEMBLY (REAR VIEW) WS-55513 / WS-65513 / WS-55613 / WS-65613 Page WS-55813 Page WS-65813 Page WS-65713 / WS-73713 WS-65713 / WS-73513 / WS-73713 WS-48513 / 48613 WS-55513 / WS-55613 / WS-65513 / WS-65613 1b. Lenticular Screen and Fresnel Lens Removal 1b. Installing the Fresnel Lens and Lenticular Screen WS-55813 / WS-65813 WS-65713 / WS-73713 Page 2. Lenticular Screen and Fresnel Lens Installation. 2. DiamondShield Installation Procedure SERVICING THE DIAMONDSHIELD 1. DiamondShield Removal Procedure CABINET SEPARATION WS-65813 Cabinet Separation Procedure CABINET SEPARATION PROCEDURE (WS-65513 / WS-65613 and WS-65713 / WS-73513 / WS-73713) WS-65513 / WS-65613 Cabinet Separation Precedure WS-65713 WS-73713 WS-65713 / WS-73513 / WS-73713 Cabinet Separation Precedure Page Main Components Location (Top View) DM Module Replacement CRT REPLACEMENT 1. Removal of the CRT 2. Installation of the CRT Page ELECTRICAL ADJUSTMENTS Test Equipment Test Signal A. Monoscope Signal B. Color Bar Signal Initial Setup A. Option Menu Setup B. Default Settings (MENU-0-3-7-0) OPTION MENU Initial Power restore :OFF DTV Port :Auto MAIN MENU DEFAULT SETTINGS LED Indicator Diagnostics 1. Initial Control Circuitry Check 2. Error Code Operational Check 3. Error Codes Circuit Adjustment Mode A.Activating the Circuit Adjustment Mode B.Selection of adjustment Functions and Adjustment Items C.Changing Data CHASSIS V23 FUNCTION DECODER 1 ADJ ITEM 22 SCNT 16 480i SIGNAL ABBREV. On Screen Display Position Adjustment Mode Activation Convergence Adjustment Mode A. Convergence Mode Activation B. Selecting the HD or SD Mode F. FINE CONV (Press 4) G. Saving Data and Exiting the Convergence Mode VC Function (Video Color) CRT-JNGL Function (Jungle) DYNAMIC FOCUS CONV MISC DOUBLER OSD Horizontal Centering CONV GREEN Items CONV BLUE Items CONV RED Items Adjustment Test Point Location Page 42 To set the CRT Anode voltage. Dark Picture 2. Main/Sub Y Level [HV Circuit] 1. HV Regulation To set picture luminance Excess or insufficient brightness. Page 43 VC Function To match the sub picture color to that of the main picture. Main and sub pictures colors differ. Setting 3. Main/Sub Color Level Page 44 5. White Balance (NTSC) BLUE GREEN RED Page 45 7. Black Level 575 5ua 73 inch models CURRENT Page 46 To improve edge focus. Poor focus at the edges of the screen. To set the Lens position for optimum focus. 10. Lens Focus [Focus Circuit] 9. Dynamic Focus Preset Page Page 48 MODELS: WS-48513 / WS-48613 / WS-55513 / WS-55613 / WS-55813 / WS-65513 / WS-65613 / WS-65713 / CONV BLUE Items CONV RED Items CONV GREEN Items Page Page Page 51 To converge red, green and blue at the center of the screen Color edging over the entire picture. [Convergence Circuit] 16. Centering and Static Convergence Page Page CHIP PARTS REPLACEMENT REPLACEMENT PARTS REMOTE CONTROL MISCELLANEOUS HIGH VOLTAGE / DEFLECTION COMPONENTS CRT ASSEMBLIES PAGE 57 TUBES INTEGRATED CIRCUITS PAGE 58 TRANSISTORS DIODES COILS Page PAGE 61 MODELS: WS-48513 / WS-48613 / WS-55513 / WS-55613 / WS-55813 / WS-65513 / WS-65613 / WS-65713 / TRANSFORMERS VARIABLE RESISTORS RESISTORS Page Page PAGE 65 CAPACITORS CAPACITORS AND TRIMMERS Page Page Page SWITCHES MISCELLANEOUS PAGE 71 COSMETIC PARTS ACCESSORIES PAGE 73 WS-65813 / WS-73513 / WS-73713 WS-48513/48613 Screen Parts (Figure 1) Figure 1: WS-48513 / WS-48613 Figure 2: WS-55513 / WS-55613 / WS-65513 / WS-65613 (WS-65513 / WS-65613 (Figure 2) WS-55513 / WS-55613 (Figure 2) Figure 3: WS-55813 / WS-65813 WS-55813 (Figure 3) WS-65813 (Figure 3) Figure 4: WS-65713 / WS-73713 / WS-73513 WS-WS-65713 (Figure 4) WS-73713 (Figure-4) WS-73513 (Figure-4)