Manuals / Brands / Computer Equipment / Projector / Mitsubishi Electronics / Computer Equipment / Projector

Mitsubishi Electronics WS-73513 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

1 86

Download 86 pages, 3.8 Mb

Page 51MODELS: WS-48513 / WS-48613 / WS-55513 / WS-55613 / WS-55813 / WS-65513 / WS-65613 / WS-65713 /WS-65813 / WS-73513 / WS-73713

Purpose:

Measuring

Instrument

Test Point

Measuring

Range

Input Signal

Ext. Trigger

Input Terminal

Symptom:

-----

-----

------

-----

To converge red, green and blue at the center of the screenColor edging over the entire picture.

Preliminary

Degauss the shield cover and bracket unit of the CRT assembly and chassis.

DO NOT degauss the CPM Assemblies.

CAUTION: On models WS-48613, WS-55613, WS-65613, WS-65713, WS-65813

and WS-73713, Do Not adjust the Alignment Magnets instead of the Centering

Magnets.

NOTE: Confirm that Item #13 HPOS, in the CRT-DEFL function of the MENU-0-3-5-7

Adjustment mode is set to the following values:

HD=38

SD=23

HD mode (The following steps must be performed in the HD mode)

1. Supply an HD Monoscope signal to the DTV Inputs.

2. Select the DTV Inputs as the signal source (Input button).

3. Enter the Convergence Coarse mode.

4. Set the data for the “HSTA” and “VSTA” items to:

GREEN RED BLUE

HSTS = 0 HSTA = 50 HSTA = -50

VSTA = 0 VSTA = 0 VSTA = 0

5. In the Coarse Green mode:

• Center the Green Raster using the Green Centering Magnet.

• Rotate the Green Deflection Yoke to correct any tilt.

6. In the Coarse Red mode, use the Red Centering Magnet to converge

red on the green at the center of screen. Correct any red tilt with the Red

Deflection Yoke.

7. In the Coarse Blue mode, repeat Step 6 using the Blue Centering magnet and

the Blue Deflection Yoke.

8. Exit the Convergence mode.

SD mode

1. Supply an NTSC Monoscope signal to a Video Input.

2. Select the Monoscope as the signal source (Input button).

3. Enter the Convergence Coarse Green mode.

4. Confirm that the Green Raster is centered.

[Convergence Circuit]16. Centering and Static Convergence

NTSC -- Monoscope

HD -- Monoscope

Video & DTV Inputs

CONVERGENCE MODE

Activate ……..MENU-0-3-5-9

Misc. ……………….……"6"

Coarse………………..…."5"

Fine ……………………..."4"

Color (R,G or B)……AUDIO

Item No………….…..VIDEO

Adjust/Move……….ADJUST

Cursor Toggle….…..ENTER

Save & Exit…..MENU (twice)

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)