Mitsubishi WD-52527 Fernseher
Hersteller:
Modell:
WD-52527
Datum:
2005
Kategorie:
Gruppe:
Beschreibung:
DLP PROJECTION HDTV

Information

• Power Input : AC 120V, 60Hz • Power Usage : See table on page 5 • Light Engine : DLPTM (1920 x 1080 pixels) 5 Primary Color System • Light Source : 180W • Channel Range : Air VHF - 2~13, UHF - 14~69 Analog Cable - 1~125 Digital Cable - 1~135 • Antenna Input : 2 RF 75Ω unbalanced • Tuning : 1 NTSC/ATSC/QAM • Cabinet Dimensions : See Table on page 5 • Weight : See table on page 5 • Speakers (4Ω 10W) : Two 5½"x2¼" Oval • Input Level : VIDEO IN JACK (RCA Type) 1.0Vp-p 75Ω unbalanced • Input Level : AUDIO IN JACK (RCA Type) (continued) -4.7dBm 43kΩ unbalanced : S-VIDEO IN JACK (Y/C separate type) Y:1.0 Vp-p C:0.286Vp-p(BURST) 75Ω unbalanced : COMP / Y, Cr, Cb (RCA Type) Y: 1.0 Vp-p Cr, Cb: 700mVp-p • Output Level : AUDIO OUT JACK (RCA Type) -4.7dBm 4.7kΩ unbalanced • Digital : AC-3 Digital Audio Output (RCA Type) : HDMI : IR Blaster Output (V39+/ V39++ only) : USB : PC - use HMDI : Wired IR Input (V39+/V39++ only)

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english
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INTRODUCTION ... 5 Dimensions, weight, power usage, etc. ... 5 PRODUCT SAFETY NOTICE ... 5 SAFETY PRECAUTIONS ... 6 DISASSEMBLY ... 7 Back Cover Removal ... 7 Chassis Removal ... 7 Rear Input Cover Removal ... 8 PWB-POWER Removal ... 8 Chassis Cover Removal ... 9 PWB-HDMI-FRONT Removal ... 9 PWB-MAIN Removal ... 10 OPTICAL ENGINE ... 11 Optical Engine Removal from cabinet ... 11 Optical Engine Removal from Duct Assembly ... 12 Upper Duct Removal ... 12 Lower Duct with Upper Duct removed ... 12 Lower Duct Removal ... 13 Engine Replacement ... 13 Ballast Removal ... 14 SCREEN DISASSEMBLY ... 14 WD-65835 & WD-73835 Escutcheon Removal ... 14 Screen Assembly (Bezel) Removal ... 14 Screen Removal From Bezel ... 16 Screen Replacement. ... 18 Speaker & PWB-SBL Replacement ... 19 Speaker Replacement ... 19 INITIAL SETTINGS, INITIALIZATION & TROUBLESHOOTING ... 20 Option Menu & Remote Control ... 20 Digital Signal Strength ... 20 Reset and Initialization ... 21 Initial Settings ... 22 A/V Reset ... 23 LED Indication Diagnostics ... 24 Error Code Operation ... 25 Color Wheel Replacement ... 26 SERVICE ADJUSTMENTS ... 28 Equipment & Test Signals ... 28 Circuit Adjustment Mode ... 28 Horizontal & Vertical Centering Adjustment ... 28 Manual Keystone Geometry Alignment ... 29 Full Adjustment Mode Activation ... 30 4x3 and Letterbox Alignment modes ... 31 Touch Up Adjustment Mode ... 32 Data Transfer ... 32 USING LEAD FREE SOLDER ... 33 CHIP PARTS REPLACEMENT ... 34 REPLACEMENT PARTS ... 35 Parts Ordering ... 35 Critical and Warranty Parts Designation ... 35 Parts Tolerance Codes ... 35 Quick Reference List ... 36 SERVICE PARTS LIST ... 37 SCREEN ASSEMBLY PARTS LIST ... 43 MIRROR REPLACEMENT ... 44 CIRCUITRY BLOCK DIAGRAMS ... 47 Main Power Supply ... 47 DC to DC Supplies ... 48 Analog Video Signal Path ... 49 Digital Video Signal Path ... 50 Overall Sound Signal Path ... 51 Overall Control Circuitry ... 52 Auto Input/Output Detect Circuitry ... 53 Lamp Control Circuitry ... 54 Short Detect Circuitry ... 55 Engine Protect Circuitry ... 55 System 5 / Wired Remote I/O ... 56 SCHEMATIC DIAGRAMS ...

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Training Manual Including… Down-to-1 High Speed Troubleshooting Introduction About Mitsubishi Electric US ... Display Technologies and PTV Product Line Display Technologies ... 1-1 PTV Product Line ... Disassembly and Service Engines ... 2-1 Identification ... 2-4 Chassis ... 2-4 PWBs ... 2-5 Mirror Access ... 2-7 LCD Access for Cleaning ... Alignment Procedures Option Menu ... 3-1 Service Mode ... 3-1 Mechanical Adjustments ... 3-2 Electrical Adjustments ... Down-to-1 Troubleshooting Front Panel LEDs ... 4-1 Self Diagnostics ... 4-2 Interface Troubleshooting ... 4-3 Symptom/Cause Troubleshooting ... Circuit Block Diagrams Power Supplies ... 5-1 Video Signal Path ... 5-11 Sound Signal Path ... 5-15 Control Circuitry ... 5-16 Lamp Control Circuitry ... 5-17 Protection Circuitry ... 5-18

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This service manual provides service instructions for LCD Projection TV Models and Chassis: V28 Chassis V28+ Chassis WD-52527 WD-52528 WD-62527 WD-62528 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 down to major Components, chassis, PWBs, Light Engine, Lamp Ballast, etc.. 4. Electrical adjustments. 5. Optical Adjustments. 6. Lead Free Soldering. 7. Chip parts replacement procedures. 8. Simplified circuit path diagrams. The parts list section of this service manual includes: 1. Cabinet and screen parts. 2. Electrical parts. Block diagrams of the above listed models are included in this service manual for better understanding of the circuitry.

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