Hitachi dlp schematic
August, 2001 Training Materials Prepared by: Daniel Newman
CONTENTS... 2001 DLP-1 Chassis Projection Television Information
INSTRUCTOR… Alvie Rodgers C.E.T.
DLP-1 Chassis
DLP Basics
DLP-1 Chassis DLP Basics
DMD™ Roadmap
SVGA: 848x600; 508, 800 mirrors
XGA: 1024x768 chip with black aperture; 786,432 mirrors
SXGA: 1280x1024; 1,310,720 mirrors
(continued)
Page 0-01
DLP-1 Chassis DLP Basics
Two Mirrors
The illustration shows a blow up of two mirrors on the DMD, one on
and one off. Light hitting the "on" mirror will reflect through the
projection lens to the screen. Light hitting the off mirror will reflect
to a light absorber. Each mirror is individually controlled and is
totally independent of all other mirrors. Each frame of a movie is
separated into its red, blue, and green components and digitized into
1,310,000 samples for each color. Each mirror in the system is
controlled by one of these samples.
(continued)
Page 0-02
DLP-1 Chassis DLP Basics
Two Mirrors Wit h Lamp, Projection, Lens, and Light Absorber
The "on" mirror reflects light into the lens and the "off" mirror
reflects light into the light absorber.
(continued)
Page 0-03
DLP-1 Chassis DLP Basics
1-Chip DLP™ Projection System
White light is forced down onto a color wheel filter. This wheel spins
in sequence with the red, green and blue video signal being sent to
the DMD™. Mirrors are turned on, depending on where and how
much of each color is needed for each TV field. The human visual
system integrates the sequential color and sees a full-color image.
(continued)
Page 0-04
DLP-1 Chassis DLP Basics
DMD™ Architecture
Exploded view of an individual mirror on a DMD. Each 16 µm
mirror on a DMD consist of these three physical layers and two
"airgap" layers. The airgap layers separate the three physical layers
and allow the mirror to tilt +10 or -10 degrees.
2
(continued)
Page 0-05
DLP-1 Chassis DLP Basics
DMD™ with Mirror Removal
The top left view shows nine mirrors. The top right view shows the
central mirror removed to expose the underlying, hidden-hinge
structure. The bottom right shows a close-up view of the mirror
substructure. The mirror post, which connects to the mirror, sits
directly on the center of this underlying surface. Lastly the bottom
left view shows several pixels with the mirror removed.
(continued)
Page 0-06
DLP-1 Chassis DLP Basics
DMD™ Size Comparisons
Micrographic photos of the tip of a pin, an ant’s leg, and one granule
2
of salt on the surface of a DMD. Each mirror is 16 µm
separation between pixels.
with 1 µm
Page 0-07
DLP-1 CHASSIS
Front & Rear
Panels
55DM X01W Front Panel
AUDIO/
PC AUDIO
S-VIDEO VIDEO L/(MONO) R
INPUT 2
POWERTEMPLAMP
POWER
HITACHI
DO BLY
DIGITAL
TM
LP
D
A TEXAS INSTRUMENTS TECHNOLOGY
DLP-1 Chassis Controls and Connections
PUSH
POWERTEMPLAMP
INPUT MENU
TV/PC EXIT SELEC T
POWER
VOL- VOL+ CH- CH+
HITACHI
DO BLY
DIGITAL
LP
D
A TEXAS INSTRUMENTS TECHNOLOGY
TM
Page i-01
INPUT 3 PC RG B INPU T 2
(continued)
55DM X01W Rear Panel
S-VIDEO
S-VIDEO
S-VIDEO
DLP-1 Chassis Controls and Connections
ANT A
L
Page i-02
R
PC AUDIO
INPUT 1
PC RGB INPUT 1
TO
CONVERTER
ANT B
SUB
WOOFER
L
R
AUDIO
TO HIFI
R
+ -
REAR SPEAKER 8
VIDEO
(MONO)
-+
ONLY
ΩΩΩΩ
L
COAXIAL
OPTICAL
INPUT
INPUT
AUDIO
Y
Pb
L
Pr
R
VIDEO
(MONO)
AUDIO
INPUT 1 INPUT 2
Y
Pb
L
Pr
R
VIDEO
(MONO)
AUDIO
MONITOR
OUT
L
R
(continued)
55DMX 01W Rear View
DLP-1 Chassis Controls and Connections
Page i-03
PC RGB INPUT 1
CONVERTER
ANT A
TO
ANT B
S-VIDEO
VIDEO
Y
(MONO)
Pb
SUB
WOOFER
L
R
-+
L
COAXIAL
R
+ -
AUDIO
REAR SPEAKER 8
TO HIFI
OPTICAL
INPUT
INPUT
ΩΩΩΩ
ONLY
L
Pr
R
AUDIO
INPUT 1 INPUT 2
S-VIDEO
S-VIDEO
VIDEO
Y
(MONO)
Pb
L
Pr
R
AUDIO
MONITOR
L
R
VIDEO
PC AUDIO
INPUT 1
(MONO)
L
R
AUDIO
OUT
55DM X01W PW B Layout
MICON PWBSURROUND PWBPOWER PW B
DSP UNIT
DLP-1 Chassis Controls and Connections
Page i-04
SIGNAL PWB
UY01 UF01
TE R MINA L P WB
2H PWB
Tuner
PWB
U201
U202
DLP-1 Chassis
Power Distribution
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