Equipment information:

Mitsubishi WD-52527 TV
Manufacturer:
Mitsubishi
Model: WD-52527
Date: 2005
Category: Audio, Video, TV, Multimedia
Group: TV
Description: 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)

These manuals are available for the above equipment:

Mitsubishi -- WD-52527 -- Service Manual
File name: Mitsubishi-1341-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 74
Size: 4.11 Mbytes (4306512 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 2005
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: c129e312afba1ef2476d838ce59aa8e9
ed2kID: 5eea47c3f594ded9d699873fdd5a6aca
Downloads: 3122 since 24 January 2009
Information:
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.
Mitsubishi-1341-Manual-Page-1-Picture
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Mitsubishi -- WD-52527 -- Service Manual
File name: Mitsubishi-1979-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 85
Size: 4.83 Mbytes (5068073 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 2005
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: abc68d19b8d2ebb38f5b105522916593
ed2kID: e0a19ffb14475523dd64a589c4357cb6
Downloads: 3585 since 26 July 2010
Information:
Mitsubishi-1979-Manual-Page-1-Picture
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Mitsubishi -- WD-52527 -- Service Manual
File name: Mitsubishi-2716-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 72
Size: 4.96 Mbytes (5196638 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 2005
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 6e7b36e1b8768c91049cbfeabe652c3e
ed2kID: 8924c49ba700e6616f4a2e5f1189aa17
Downloads: 2178 since 14 August 2011
Information:
Training Manual
Including…
Down-to-1
High Speed Troubleshooting


Introduction
About Mitsubishi Electric US ................................................................................. 1
Chapter 1... Display Technologies and PTV Product Line
Display Technologies ......................................................................................... 1-1
PTV Product Line............................................................................................... 1-3
Chapter 2... Disassembly and Service
Engines ............................................................................................................ 2-1
Identification ....................................................................................................... 2-4
Chassis ............................................................................................................ 2-4
PWBs ............................................................................................................ 2-5
Mirror Access..................................................................................................... 2-7
LCD Access for Cleaning ................................................................................... 2-8
Chapter 3... Alignment Procedures
Option Menu ...................................................................................................... 3-1
Service Mode .................................................................................................... 3-1
Mechanical Adjustments ..................................................................................... 3-2
Electrical Adjustments ........................................................................................ 3-8
Chapter 4... Down-to-1 Troubleshooting
Front Panel LEDs .............................................................................................. 4-1
Self Diagnostics................................................................................................. 4-2
Interface Troubleshooting ................................................................................... 4-3
Symptom/Cause Troubleshooting....................................................................... 4-4
Chapter 5... 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
Mitsubishi-2716-Manual-Page-1-Picture
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Mitsubishi -- WD-52527 -- Service Manual
File name: Mitsubishi-4636-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 71
Size: 4.71 Mbytes (4942074 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 2008
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 14fd8851d3407ffb149c962b3f393bcb
ed2kID: 89c9a55434d3db5841ad7f392ff98dcc
Downloads: 865 since 30 September 2013
Information:
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 .....................................................................................................................

Mitsubishi-4636-Manual-Page-1-Picture
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