Mitsubishi Electronics WD-62927, WD-52628, WD-73727, WD-62827 Introduction, Product Safety Notice

MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927

INTRODUCTION

This service manual provides service instructions for DLP Projection TV Models and Chassis:

Dimensions/Weight

MODEL	CHASSIS	HEIGHT	WIDTH	DEPTH	WEIGHT	POWER
						USAGE
WD-52627	V29	34 in.	49.6 in.	18.6 in.	121 lbs.	295W
WD-52628	V30	"	"	"	"	"
WD-62627	V29	40.5 in.	58.3 in.	20.3 in	133 lbs.	"
WD-62628	V30	"	"	"	"	"
WD-62827	V30+	"	60.3 in.	"	"	310W
WD-62927	V31	"	"	"	"	330W
WD-73727	V30	44.8 in.	69.9 in.	21.5 in.	165 lbs.	335W
WD-73827	V30+	"	"	"	"	350W
WD-73927	V31	"	69.8 in.	"	"	"

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.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in television receivers have special safety related characteristics. These charac- teristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.

Replacement parts which have special safety characteristics are identified in this service manual.

Electrical components having such features are identified by shading on the schematic diagram and by bold type in the parts list of this service manual. Therefore, the replacement for any safety part should be identical in value and characteristics.

Pb Solder	The PWBs used in the V28 and V28+ chassis are constructed using Lead-Free solder. When
	servicing use only recommended Lead-Free solder (refer to page 48).

CableCARD is a trademark of Cable Television Laboratories, Inc.

TV Guide On Screen is a registered trademark of Gemstar Development Corp.

HDMI is a trademark of HDMI Licensing, LLC.

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