Mitsubishi Electric WD-57831 Service Manual page 4

CIRCUITRY BLOCK DIAGRAMS ..................................................................................................... 53
Main Power Supply ....................................................................................................................... 53
xHD4 Light Engine & Fan Power Supplies .................................................................................... 54
xHD5 Light Engine & Fan Power Supplies .................................................................................... 54
Power Distribution ......................................................................................................................... 55
PWB-SIGNAL Video Path ............................................................................................................. 56
PWB-DM Video Path .................................................................................................................... 57
Sound Select Circuitry .................................................................................................................. 58
Sound Signal Path ........................................................................................................................ 59
Overall Control Circuitry ................................................................................................................ 60
Command Input Circuitry ............................................................................................................... 61
57" & 65" Lamp Control Circuitry ................................................................................................... 62
56" 7 65" Engine Protect Circuitry ................................................................................................. 62
73" Lamp Control Circuitry ............................................................................................................ 63
73" Engine Protect Circuitry .......................................................................................................... 63
Auto Input Detection ..................................................................................................................... 64
Short Protect Circuit ..................................................................................................................... 65
SCHEMATIC DIAGRAMS .....................................................................................................................
CableCARD is a trademark of Cable Television Laboratories, Inc.
Digital Light Processing, Digital Micro Mirror Device and DLP are Trademarks of Texas Instruments.
Dolby and Dolby digital are registered trademarks of Dolby Laboratories.
DTV Link is a trademark of Consumer Electronics Association
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing, LLC.
TV GUIDE and other related marks are registered marks of Gemstar-TV Guide International, Inc. and/or on of its affiliates.
MODEL: WD-57831 / WD-65831 / WD-73831
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