Mitsubishi Electronics WS-73513 WS-55813 / WS-65813

Page 20

MODELS:

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

WS-65813 / WS-73513 / WS-73713

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS

CAUTION: Wear gloves when handling the Lenticular Screen and Fresnel Lens.

This prevents cuts and finger prints. Do not place Fresnel Lens in the sun.

This may cause fire and heat related injuries.

WS-55813 / WS-65813

Lenticular Screen and Fresnel Lens Removal

1. Remove the screen assembly shown in the Cabinet Disassembly procedure.

2. Remove the Screen Frame top section by removing 4 screws (a).

3. Carefully grasp the Lenticular Screen and Fresnel Lens combination and pull upward and out

of the Screen Frame Assembly.

Note: When separating the Lenticular Screen from the Fresnel Lens, use caution

while prying the Screen and Lens apart. Use a slot type screw driver, and

remove the pressure sensitive double sided tape.

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)