Mitsubishi dd 4021 service

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2001

Service
A MITSUBISHI Manual

DVD PLAYER
AMITSUBISHI .2; IT f 4;, MODEL
CI '3 9'21!de DD-4021

TABLE OF CONTENTS

SPECIFICATIONS ..........................................................
LASER BEAM SAFETY PRECAUTIONS.
IMPORTANT SAFETY PRECAUTIONS.
STANDARD NOTES FOR SERVICING
CABINET DISASSEMBLY INSTRUCTIONS.
BLOCK DIAGRAMS ....................................................
SCHEMATIC DIAGRAMS / CBAS AND TEST POINTS
WAVEFORMS .............
WIRING DIAGRAM .....
SYSTEM CONTROL TIMING CHARTS.
IC PIN FUNCTION DESCRIPTIONS ....................
LEAD IDENTIFICATIONS .....
EXPLODED VIEWS ...........
MECHANICAL PARTS LIST.
ELECTRICAL PARTS LIST ......

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AMITSUBISHI ELECTRIC

MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
9351 Jeronimo Road, Irvine, CA 92618-1904
Copyright © 2001 Mitsubishi Digital Electronics America, Inc.
All Rights Reserved

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HOW TO INITIALIZE THE SETUP MENU

After turning the power ON, without a disc in the tray, press the "1 "2," '3," "4," "DISPLAY" and "ENTER" buttons
on the remote control unit in this order. Then, after turning the power OFF temporarily, turn the power ON again
to intialize the Setup Menu.

HOW TO CLEAR THE PASSWORD PROTECTION
(In case the Parental Lock password is forgotten)

To release parental lock, initialize the setup menu using the procedure above.

HOW TO SET OR CLEAR THE TRAY LOCK

To set the tray lock mode to on, follow the procedures below:
1. With loading a disc, set the DVD player to the stop mode.
Press the "SETUP" button to display the SETUP menu.
Press the "TITLE" button.

Press the "3" button.

Press the "AUDIO" button.

Press the "0" button.

Press the SETUP" button. Tray Lock mode is set to ON and "Tray Lock On" is displayed on the top right of
the screen.

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While the Tray Lock mode is on, the tray cannot be opened or closed. Other operations are available.

To release the Tray Lock mode, perform the above procedures again. Tray Lock mode is set to OFF and "Tray
Lock Off" is displayed on the top right of the screen.

HOW TO MANUAL EJECT k //s.\
1. Remove the Top Case. 6\ /\: \\\/W
2. Insert the eject-bar (length = approximately 3 mm, @X:\\\\ \\\
diameter: approximately 8 mm) into the manual eject '/ \\E>\ \ \\g\
hole on the PCB Holder. Then, press it until the tray \:\\ 5
. . \s\\\ ,/
is ejected. Top Case \§\\ // //»1
i\ a ,/ z/ i
3. Pull out the tray. @ \I/yfi/éxw
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Elect Hole

PCB Holder

Elect-Bar (Length = approximately 80 mm. Diameter = approximately 3 mm)\

Manufatured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby
Laboratories. Confidential Unpublished Works.
(©1992-1997 Dolby Laboratories, Inc. All rights reserved.)

"DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems Inc.