Planar LC1200R User manual

LC1200R High-Bright Monitor
USER’S MANUAL
www.planar.com

LC1200R User’s Guide 021-0183-00 Rev A 2 of 29
TABLE OF CONTENTS
1INTRODUCTION 4
2BASIC CONSTRUCTION 4
2.1 LCD Display 4
2.2 Weight 5
2.3 Mechanical 5
2.4 Cooling Fans 7
2.5 Connectors 7
2.6 Interface Cables 7
2.7 Power Supply 8
2.8 LCD Controller Board 8
2.9 Inverter Board 8
2.10 Photodiode Board 8
2.11 Button Board 9
3ENVIRONMENTAL 9
3.1 Temperature and Humidity 9
3.2 Direct Sunlight Operation 10
3.3 Altitude 10
3.4 Mechanical Vibration and Shock 10
4VIDEO SIGNAL REQUIREMENTS 11
4.1 Video Input Lines 11
4.2 Signal Functions 11
4.3 Signal Quality 14
4.4 Timing and Frequency 15
4.5 Video Signal On-Off Sequences 15
5DC POWER INPUT REQUIREMENTS 16
5.1 DC Power Input Lines 16
5.2 DC Input Voltage / Current 16
5.3 Power On-Off Sequences 17
6USER CONTROLS 17
6.1 LCD Controller Board Controls 17
6.2 User Adjustments 18
6.3 Dimming 20
7MONITOR PERFORMANCE 22
7.1 Monitor Luminance 22
7.2 Display Contrast 22

LC1200R User’s Guide 021-0183-00 Rev A 3 of 29
7.3 Display Uniformity 23
7.4 Display Chromaticity 23
8DISPLAY COSMETICS 24
8.1 Black Display Picture Mode 24
8.2 White Display Picture Mode 24
9REGULATORY AGENCY REQUIREMENTS 24
9.1 Safety Certification 24
9.2 CE Marketing 24
9.3 RFI Emission Certification 25
9.4 System Transient Disturbance Requirements 25
9.5 Labeling 25
9.6 ROHS Compliance 26
10 RELIABILITY 26
10.1 Design Workload 26
10.2 MTBF 26
11 DESCRIPTION OF WARRANTY 26
12 SUPPORT AND SERVICE 27
13 GLOSSARY OF TERMS 28

LC1200R User’s Guide 021-0183-00 Rev A 4 of 29
1ntroduction
This document defines the e ectromechanica parameters and operating characteristics for The
P anar Systems, Inc. LC1200R, Very High Bright, 12.1” Active Matrix Liquid Crysta Disp ay (AMLCD)
based product. It is intended for operation as a component in a high ambient ight, outdoor system.
The LC1200R has a sca eab e video format capab e of disp aying a minimum of VGA (640 x 480)
through XGA (1024 x 768) input reso ution.
The LC1200R can be driven direct y from the standard ana og video graphics adapter (VGA) output
on a persona computer (PC). It consists of a 12.1" viewab e diagona LCD pane with optica
e ements, co d-cathode f uorescent back ight, back ight inverter board, and LCD contro er board. A
tethered photodiode provides automatic brightness contro . Coo ing fans are provided to coo the
back of the LCD modu e. If used in direct sun ight, it is the system designer’s responsibi ity to provide
an enc osure that directs the airf ow, across the front of the disp ay. Two (2) chassis mounted
connectors at the rear provide for video signa and 12 V DC power input connections. The enc osure
is a uminum for added coo ing and ease of insta ation.
2Basic Construction
2.1 LCD Display
2.1.1 LCD Panel – Physical mage Characteristics
The LC1200R incorporates an matrix disp ay with the fo owing features:
LCD Size: 307.5mm [12.11in] diagona
Active Area: 246.0mm [9.69in] by 184.5mm [7.26in]
Pixe Format: 800 (H) x 600 (V) (1 fu co or pixe = R + G + B dots)
Pixe Pitch: 0.3075mm [0.012in] horizonta x 0.3075mm [0.012in] vertica
Pixe Arrangement: R,G,B vertica stripe

LC1200R User’s Guide 021-0183-00 Rev A 5 of 29
2.1.2 Display format
The LC1200R is compatib e with IBM VGA1 and VESA2 video standards. Its operating
frequency range is 31.5 kHz to 56.5 kHz horizonta ; 60 Hz to 72 Hz (non-inter aced) vertica .
Specific video reso utions supported in Tab e 1
Tab e
Tab e Tab e
Tab e 1
11
1
Video Reso ution Number of Bits/Co or Number of Co ors
640 x 400 6 262,144
640 x 480 6 262,144
720 x 400 6 262,144
800 x 600 6 262,144
1024 x 768 6 262,144
For IBM VGA1 modes, the LC1200R wi accept 640 pixe s horizonta y; 400 or 480 ines
vertica y and 800 pixe s or 1024 pixe s horizonta y, 600 ines or 768 ines vertica y for the
VESA2 modes. Figure 4 defines the video signa timing requirements.
The LCD contro er board wi automatica y program itse f, sensing incoming
horizonta /vertica frequencies and sync pu se po arities to comp ete y “fi ” the active disp ay
area of the LC1200R with the video reso ution being presented. Section 4.2 defines
parameters for video reso ution detection by the LCD contro er board.
Note: IBM VGA1 modes with border and the 720 x 400 video reso utions are exc uded from
comp ete y fi ing the active disp ay area horizonta y. On y the first 640 pixe s wi be
disp ayed.
2.2 Weight
The LC1200R has a ightweight a uminum enc osure and does not exceed 1.8 kg (4 bs)
2.3 Mechanical
Size: 301mm x 265mm x 63 mm (11.9” x 10.4” x 2.5”)
See P anar Mechanica Out ine drawing 076-0549-00 for more detai
Figure
Figure Figure
Figure 1
11
1.
. .
. View of Disp ay
View of Disp ayView of Disp ay
View of Disp ay
1 IBM VGA is a registered trademark of Internationa Business Machines Corporation
2 VESA is a registered trademark of Video E ectronics Standards Association.

LC1200R User’s Guide 021-0183-00 Rev A 6 of 29
92.50
2X M4
mounting holes
Removable
Button
Board
Door to
User control
Connectors
185.0857.5
4X Fan inlet
B
A
Front View
Rear View
Right View
Center
185
Active Area
123
Active
area
301
152.15
246
Active area
63
235
Top of removable
83
standoff
4X M3 mnt holes
VGA
Conn
Power
12 V
4X M3 mnt
holes

LC1200R User’s Guide 021-0183-00 Rev A 7 of 29
2.4 Cooling Fans
Four (4) thermostatica y contro ed coo ing fans are provided to coo the rear of the disp ay. The
thermostat is set to turn the fans on when the video board temperature reaches 30° C. If the disp ay
is used in direct sun ight, airf ow must be directed across the front of the disp ay or the disp ay LCD
f uid may reach its c earing point, then the LC1200R wi become temporari y unreadab e.
2.5 Connectors
There are four connectors supp ied as an integra part of the LC1200R.
2.5.1 Video Signal Connector
The LC1200R unit inc udes a chassis mounted 15-pin fema e mini D-She connector (AMP
748390-5 or equiva ent) with socket contacts at the rear of the LC1200R. It is shie ded for
e ectromagnetic interference (EMI) purposes. Refer to Section 4.1 for e ectrica connections.
2.5.2 DC Power nput Connector
The DC power input connector is a chassis mounted 2-pin connector (Mo ex Mini Fit Jr
Header 5569 Mo ex p/n 39-30-0020) with pin contacts at the side of the LC1200R. The
connections are insu ated to prevent accidenta contact.
2.5.3 Photodiode Connector
A 3-pin connector, Mo ex p/n 22-03-5035, is provided on the inverter board. The connector
accepts the cab e assemb y provided with the product that attaches to the provided
photodiode board.
2.5.4 Dimming Control Connector
A 5-pin connector, Mo ex p/n 22-03-5055, provides an ana og input that can override the
automatic photodiode dimming and a ows the back ight to be shut down using an inhibit
input.
2.5.5 Button Board Connector
The Button board can be mounted remote y or removed for better access when mounted
into the arger system.
2.6 nterface Cables
The disp ay is shipped with a remote photo-sensor and cab e, removab e button board, and 6 ft VGA
interface cab e. No other interface cab es are provided. An externa power supp y brick is avai ab e
for purchase from P anar Systems, Inc.

LC1200R User’s Guide 021-0183-00 Rev A 8 of 29
2.7 Power Supply
The LC1200R does not ship with a power supp y. It is recommended that the P anar Systems, Inc.
power adapter, part number 997-3066-00 (US) or 997-3067-00 (EU) be purchased with each unit.
Refer to Section 5 for power requirements.
2.8 LCD Controller Board
The LCD contro er board incorporates components necessary to drive the LCD pane . Accepting VGA
and VESA video standards (Section 1.2), these video signa s are digitized and processed for the LCD
pane . Due to the LCD pane ’s fixed video reso ution (800 x 600), the LCD contro er board wi
perform independent horizonta and vertica zoom and shrink sca ing of specified video reso utions
ess than or greater than the LCD pane ’s video reso ution to fu y accommodate the LCD pane ’s
capabi ity.
Magnification or reduction of specified video reso utions to match the native LCD pane ’s reso ution
incorporates sca ing a gorithms minimizing a iasing and image distortion. The LCD contro er board
inc udes the fo owing characteristics:
•Per pixe sca eab e fi ters providing text sharpening and graphics smoothing for improved
image qua ity.
•Co or depth enhancement by performing spatia -tempora dithering reducing visua artifacts.
•Externa contro s. See User Contro s (Page 18) for more information.
There are 5 connectors for 12 V fans ocated on the contro er board. They are attached to a 30º C
thermostat.
2.9 nverter Board
The inverter PCB drives the LC1200R’s 6 co d cathode f uorescent amps (CCFL). It is capab e of
automatic brightness contro of the back ight. See User Contro s (Page 17) for more information on
the dimming functions.
There are 4 connectors to power 12 V fans on the inverter PCB. They are on constant y.
2.10 Photodiode Board
A photodiode (Siemens BPW21) mounted on a separate circuit board is provided for sensing the
ambient ight conditions. A cab e (40 cm in ength) is connected from the photodiode board to the
inverter board on the LC1200R.
Size: approximate y 1 x 3 cm with two 3mm diameter mounting ho es. Refer to mechanica out ine
drawing for detai s

LC1200R User’s Guide 021-0183-00 Rev A 9 of 29
2.11 Button Board
The button board contro s the user contro s noted in Section 6.1 LCD Contro er Board Contro s It can
be removed or mounted in another area after initia adjustments are made.
3Environmental
3.1 Temperature and Humidity
The LC1200R withstands operating and storage environmenta conditions isted in Tab e 2.
Tab e
Tab e Tab e
Tab e 2
22
2
Genera Operating
Genera OperatingGenera Operating
Genera Operating
Shipping and Storage Shipping and StorageShipping and Storage
Shipping and Storage
Comments CommentsComments
Comments
Temperature
TemperatureTemperature
Temperature
0°C to 60°C
[32°F to 140°F]
-20°C to 60°C
[-4°F to 140°F]
Note 2,3,4,5
Re ative
Re ative Re ative
Re ative
Humidity
HumidityHumidity
Humidity
Note 1 Note 1 Without
Condensation
Tair is defined as ambient air temperature surrounding the LC1200R.
Note 1: Tair < 32°C : 95% RH maximum.
T
air > 32°C : Abso ute humidity content not to exceed 100% at 32oC.
Note 2: Tair @ -20°C < 48 hours
T
air @ 60°C < 168 hours
Note 3: S ight background co or changes are a owed depending on ambient temperature.
This phenomenon is reversib e.
Note 4: High temperature operation assumes the use of an enc osure that proper y directs the
fan airf ow
Note 5: Upper operating temperature imit of 60°C is without so ar oading.
Reference to "room ambient" is interpreted as 20°C - 25°C [68°F°- 77°F] and app ies throughout this
specification un ess otherwise noted.
For product re iabi ity predictions, the assumed temperature profi e is:
Tab e
Tab e Tab e
Tab e 3
33
3
Operating Time
Operating TimeOperating Time
Operating Time
Temperature TemperatureTemperature
Temperature
5% 0°C [32°F]
90% 30°C [86°F]
5% 60°C [140°F]

LC1200R User’s Guide 021-0183-00 Rev A 10 of 29
3.2 Direct Sunlight Operation
This monitor wi absorb approximate y 45 W of so ar power on the front surface of the disp ay in a
typica setup when facing the sun direct y. It is the integrator’s responsibi ity to design a system that
coo s the front surface adequate y. Otherwise, the disp ay’s LC materia wi overheat and
temporari y phase change. The disp ay wi temporari y become b ack and unreadab e.
3.3 Altitude
Maximum operating a titude is 3,000 meters [9,850 feet]. Maximum shipping and storage a titude is
12,000 meters [39,400 feet].
3.4 Mechanical Vibration and Shock
Note: Tests performed with unpackaged monitors are mounted in a P anar approved rigid retaining
fixture.
3.4.1 Vibration
Non-operating (sinusoida ): 10-200 Hz, 0.9g acce eration, 120 seconds per sweep for 15
minutes, three axes, (x, y, z).Fo owing exposure unit sha
meet a performance requirements.
Non-operating (random): 10-200 Hz, 0.02g2/Hz, 10 min/axis, three (x, y, z).Fo owing
exposure unit sha meet a performance requirements.
3.4.2 Shock
Non-operating: 30 g, > 2.5 ms duration, ½ sine, 1 shocks per axis. Fo owing
exposure unit sha meet a performance requirements.
3.4.3 Shock Packaged Product
Non-operating: 30 inch free fa or simu ated drop, 1 drop per side, 6 sides
and 1 drop per edge, 3 edges, 1 shocks per axis. With
acce erometer attached to center of product disp ay screen,
a maximum of 50 G’s is a owed. Fo owing exposure unit
sha meet a performance requirements.
Figure
Figure Figure
Figure 2
22
2
Monitor unit orientatio
Monitor unit orientatioMonitor unit orientatio
Monitor unit orientation
nn
n
Y (rear)
X (side)
Z (bottom)
DISPLAY

LC1200R User’s Guide 021-0183-00 Rev A 11 of 29
4Video Signal Requirements
4.1 Video nput Lines
The video signa connector that connects to the customer’s equipment is a fema e 15-pin connector
in a high density 9-pin D-She housing. Pin number assignments are defined in Tab e 4, and physica
ayout as seen by the interface cab e from user ogic is shown in Error! Reference source not found.
Error! Reference source not found.Error! Reference source not found.
Error! Reference source not found.
The "NC" positions of this connector are not used for any purpose.
Tab e
Tab e Tab e
Tab e 4
44
4
Video Signa Connector Video Signa Connector Video Signa Connector
Video Signa Connector –
––
– Pin Number Assignments
Pin Number Assignments Pin Number Assignments
Pin Number Assignments
Pin Number
Pin NumberPin Number
Pin Number
Signa Name Signa NameSigna Name
Signa Name
1 Red Video
2 Green Video
3 B ue Video
4 Monitor Sense Line 3 (connected to Pin
10)
5 NC
6 Red video return
7 Green video return
8 B ue video return
9 NC
1
0
Signa Ground Reference
1
1
Monitor Sense Line 1 (connected to Pin
10)
1
2
Monitor Sense Line 2 (NC)
1
3
Horizonta Sync Input
1
4
Vertica Sync Input
1
5
NC
4.2 Signal Functions
4.2.1 Video Parameters
As seen by the video source, input resistance is 75-ohm, ±10%; input capacitance at (150
MHZ) <10-pF. The video input signa must have a range of 0-mv to 714-mv (maximum)
where 0-mv is minimum uminance. Rise and fa times for the input signa (10% - 90%) wi
be 5-ns (Figure 4). When terminated with a 75-ohm termination, the dark state (b ack eve ) is

LC1200R User’s Guide 021-0183-00 Rev A 12 of 29
defined as a eve between 0-mv and 10-mv. The white state (fu white) is dependent on the
VGA contro er driving the LC1200R. Maximum eve s may range from 550-mv to 714-mv.
Nomina 680-mv input vo tage sha be defined as the defau t for supp ier setup
requirements.
Disp ayed image intensity and co ors wi change inear y with the video ana og input. This is
necessary to provide a uniform user co or change on the screen in response to a uniform y
stepped ana og input. The LC1200R is capab e of reso ving a minimum co or range of
262,144 disp ayab e co ors (6 bit reso ution for red, green and b ue). This interpo ates to 64
shades of gray (or co or) at the red, green, and b ue ana og video inputs. Accomp ishing
specified shades of gray requires a “Video Gain” contro adjustment (Section 6.1) of red,
green, and b ue ana og input signa s based on the maximum output eve range previous y
specified.
Figure
Figure Figure
Figure 3
33
3
RISE
TIME
FALL
TIME
NEG
POS
HIGH
STEADY
LEVEL
LOW
STEADY
LEVEL
OVE RSHOOT
4.2.2 Synchronization
Sync pu ses for horizonta and vertica are TTL eve s. Figure 4 TTL A owab e Signa Leve s
defines the eve s and drive current capabi ities.

LC1200R User’s Guide 021-0183-00 Rev A 13 of 29
Figure 4 TTL A owab e Signa Leve s

LC1200R User’s Guide 021-0183-00 Rev A 14 of 29
4.2.3 Mode Detection
The po arity of incoming horizonta /vertica frequencies and synchronization pu ses define
the video reso ution being presented. Video modes are isted in Tab e 5 Video Mode
Definitions.
Tab e
Tab e Tab e
Tab e 5
55
5 Video Mode Definitions
Video Mode Definitions Video Mode Definitions
Video Mode Definitions
Video Mode
Video ModeVideo Mode
Video Mode
Disp ayed Disp ayed Disp ayed
Disp ayed
Image
Image Image
Image
Reso ution
Reso utionReso ution
Reso ution
Scanning
Scanning Scanning
Scanning
Frequency)
Frequency)Frequency)
Frequency)
Sync Po arity
Sync Po aritySync Po arity
Sync Po arity
Horizon
ta (KHz)
Vertica
(Hz)
Horizont
a
Vertic
a
IBM VGA 640 x 400 31.468 70 - +
IBM VGA 640 x 480 31.468 60 - -
IBM VGA
w/Border
656 x 496 31.468 60 -
-
IBM VGA 720 x 400 31.468 70 - -
IBM VGA
w/Border
738 x 414 31.468 70
VESA 800 x 600 48.077 72 + +
VESA 1024 x 768 56.48 70 - -
4.2.4 Color Display Detection
The video signa source determines which type of disp ay is connected to it based on the
state of the LC1200R sense ines. The LC1200R wi indicate to the source that it is a "co or
disp ay" when the monitor sense ine 1 (Pin 11) is physica y connected to signa ground
reference (Pin 10) as defined by the wiring definitions ofTab e 4 Video Signa Connector – Pin
Number Assignments.
4.3 Signal Quality
4.3.1 TTL Sync Pulse Signal Levels
Input eve s for the horizonta and vertica sync pu ses are defined in Figure 5.
4.3.2 Rise and Fall Times
Rise and fa times are the times required for signa transitions between 10% of Vs above ow
steady eve and 10% of Vs be ow high steady eve where Vs is the peak-to-peak video input
signa eve . The overshoot, if present, sha be exempted from estab ishing these high/ ow
eve s referenced in. Both rise and fa times of each input signa sha be as fo ows:
Video: Less than 5-ns
Horizonta Sync: Less than 50-ns
Vertica Sync: Less than 100-ns

LC1200R User’s Guide 021-0183-00 Rev A 15 of 29
4.4 Timing and Frequency
4.4.1 Video, Horizontal and Vertical Sync
Figure 6 i ustrate video timing re ationships the LC1200R operates within when the specified
video mode (Tab e 5 Video Mode Definitions) is app ied.
Front Porch defines the time from end of active video data to the start of Horiz/Vert Sync
Pu se.
Back Porch defines the time from end of Horiz/Vert Sync Pu se to the start of active video
data.
B anking is the tota time comprising Front Porch, Back Porch and Sync Pu se time(s).
The horizonta sync circuitry synchronizes to horizonta frequencies of 31.468 KHz ±0.5 KHz,
48.077KHz ±0.5KHz, and 56.476KHz ±0.5KHz. Horizonta sync pu se width variation is 1.813-
µsec to 3.813-µsec. The LC1200R wi "sync" to the specified format vertica frequencies
between 60Hz and 72Hz without adjustment.
Absence of Horizonta and/or Vertica Sync wi not damage the LC1200R.
4.5 Video Signal On-Off Sequences
The sequence for bringing up and remova of each video input signa can be in any sequence or
combination of input signa s.
Tab e
Tab e Tab e
Tab e 6
66
6.
... Video Mode Timing Data Video Mode Timing Data Video Mode Timing Data
Video Mode Timing Data
Video Modes
IBM VGA VESA
Reso ution 640x400 640x480 800x600 1024x768
Video C ock 25.175 MHz 25.175 MHz 50.000 MHz 75.000 MHz
Horizonta Scan
Freq. 31.468 KHz 31.468 KHz 48.077 KHz 56.476 KHz
Horizonta Line
Period
31.778 us 800
pixe s
31.778 us 800
pixe s
20.800 us 1040
pixe s
17.707 us 1328
pixe s
Horizonta
B anking
6.356 us 160
pixe s
6.356 us 160
pixe s
4.800 us 240
pixe s
4.053 um 304
pixe s
Horizonta Sync
Pu se 3.813 us 96 pixe s 3.813 us 96 pixe s
2.400 us 120
pixe s
1.813 us 136
pixe s
Horizonta Front
Porch 0.636 us 16 pixe s 0.636 us 16 pixe s 1.120 us 56 pixe s 0.320 us 24 pixe s
Horizonta Back
Porch 1.907 us 48 pixe s 1.907 us 48 pixe s 1.280 us 64 pixe s
1.920 us 144
pixe s
Horizonta Active
Disp ay
25.422 us 640
pixe s
25.422 us 640
pixe s
16.000 us 800
pixe s
13.653 us 1024
pixe s
Horizonta Sync
Po arity - - - -
Vertica Scan Freq. 70.087 Hz 59.94 Hz 72.184 Hz 70.069
Vertica Frame
Period
14.268 ms 449
ines
16.683ms 525
ines
13.853 ms 666
ines
14.272 ms 806
ines
Vertica B anking 1.557 ms 49 ine 1.430 ms 45 ine 1.373 ms 66 ines 0.673 ms 38 ines
Vertica Sync 0.064 ms 2 ines 0.064 ms 2 ines 0.125 ms 6 ines 0.106 ms 6 ines

LC1200R User’s Guide 021-0183-00 Rev A 16 of 29
Pu se
Vertica Front
Porch 0.381 ms 12 ines 0.318 ms 10 ines 0.770 ms 37 ines 0.053 ms 3 ines
Vertica Back
Porch 1.112 ms 35 ines 1.049 ms 33 ines 0.478 ms 23 ines 0.514 ms 29 ines
Vertica Active
Disp ay
12.711 ms 400
ines
15.254 ms 480
ines
12.480 ms 600
ines
13.599 ms 768
ines
Vertica Sync
Po arity - - - -
Note: VGA border is not inc uded in the active disp ay time described above.
Note: For video mode 720 x 400 missing video rows and co umns are a owed. This is a text
mode on y. Performance is acceptab e if characters as defined section 1.2.1 are egib e.
Missing row or co umns at the edge of the disp ay is acceptab e as ong as characters remain
egib e.
5DC Power nput Requirements
5.1 DC Power nput Lines
The DC Power Input Connector consists of two (2) positions wired numerica y and supp ied attached
to the LC1200R as a chassis mounted connector per definitions isted in Tab e 7.
Tab e
Tab e Tab e
Tab e 7
77
7.
. .
. DC Power Input Connector
DC Power Input ConnectorDC Power Input Connector
DC Power Input Connector-
--
- Pin Assignments
Pin Assignments Pin Assignments
Pin Assignments
PIN NUMBER
PIN NUMBERPIN NUMBER
PIN NUMBER
SIGNAL NAME SIGNAL NAMESIGNAL NAME
SIGNAL NAME
1 Positive Input Vo tage (12V)
2 Return (GND)
The DC Power Input Connector is a 2 pin Mo ex Mini Fit Jr. Pin
number assignments are defined in Tab e 7; shown be ow is the
physica ayout as seen by the interface cab e from the DC power
source.
Figure
Figure Figure
Figure 5
55
5
5.2 DC nput Voltage / Current
DC Input Vo tage: 12
12 12
12 V DC
V DC V DC
V DC nomina , +
nomina , + nomina , +
nomina , +/
//
/-
--
-
.4 .4.4
.4
V DC V DC V DC
V DC.
...
Over the specified input vo tage range:
•No oss of image synchronization occurs.
•White disp ay uminance eve is within 10% of uminance at nomina input vo tage.
•DC Input Current: 4.3 amp maximum current draw (12.4-vdc app ied) steady state conditions.

LC1200R User’s Guide 021-0183-00 Rev A 17 of 29
The LC1200R is not damaged by input vo tages ranging from 0-vdc to 12.4-vdc.
5.3 Power On-Off Sequences
The LC1200R wi automatica y return to norma operation upon resumption of power after a power
oss.
6User Controls
6.1 LCD Controller Board Controls
The disp ay comes from the factory adjusted for the supported modes. When using these modes,
adjustment shou d not be necessary. However, if it shou d become necessary, or a non-supported
mode is se ected, the fo owing contro s are avai ab e for adjustment.
There are 4 push buttons ocated on the back of the disp ay, which a ow adjustment of the disp ayed
image.
The provided contro s are:
Name Function
Dot C k - C ock Frequency/Phase Decrease
Dot C k + C ock Frequency/Phase Increase
Horiz Horizonta Position Adjustment
Vert Vertica Position Adjustment
Gain Video Gain Adjustment
The C ock Frequency /Phase adjustments are dua function buttons. The c ock frequency adjustment
is used to change the horizonta size of the disp ayed image. The Phase adjustment is used to
minimize the pixe ‘noise’ or ‘jitter’. The phase a ows for 32 positions of phase contro . If the button is
he d down, the c ock frequency is adjusted up or down 1 c ock each time the phase contro register
ro s over. To adjust the c ock frequency further, continue to ho d the button down. If phase
adjustment is desired, it’s best to use sing e presses.
The Horizonta Position is adjusted by ho ding down the Horiz button. The position wi shift by 1
co umn for each press. If the button is he d down, the position wi continuous y adjust unti re eased.
The direction of the adjustment depends on the direction of the ast adjustment. The direction wi
continue to be true unti the maximum or minimum adjustment is reached. At this point, the
direction wi reverse.
The Vertica Position is adjusted by ho ding down the Vert button. The position wi shift by 1 co umn
for each press. If the button is he d down, the position wi continuous y adjust unti re eased. The
direction of the adjustment depends on the direction of the ast adjustment. The direction wi
continue to be true unti the maximum or minimum adjustment is reached. At this point, the
direction wi reverse

LC1200R User’s Guide 021-0183-00 Rev A 18 of 29
The Gain adjustment is to a ow the fu sca e of the input video to be uti ized. The direction of this
adjustment wi reverse when a imit is reached. For examp e, it wi adjust from maximum to
minimum, then reverse and go from minimum to maximum. The best way to make this adjustment is
with a continuous gray sca e pattern on the disp ay. A proper adjustment wi give continuous
shading from b ack to white.
Auto Adjust: A four parameters (c ock, Horizonta position, Vertica position, and gain) can be
adjusted automatica y by pressing the Horz and DotC k+ button simu taneous y. The LC1200R wi
sense the incoming video and optimize its settings. For best resu ts, disp ay a pattern containing
white and b ack with some white pixe s a ong a four edges whi e the auto adjust is performed.
6.2 User Adjustments
There are features that a ow the user to adjust the properties of the LC1200R. These adjustments
wi require access to the video board PCB and the inverter. Access to the Photodiode Connector
Section 2.5.3 and Dimming Contro Connector Section 2.5.4 can be gained by removing 1 screw and a
sma access pane . See Figure 6. ESD precautions shou d be taken when removing this pane or the
back cover of the unit.
Figure 6:
6.2.1 Flip and Mirror
The unit has the capabi ity to f ip and/or mirror the video image. This can be done to a ow
for the power and video connector to be ocated on the other side of the unit for f exibi ity in
mounting the LC1200R. Jumpers are ocated on the LCD Video Contro er Board. See Figure
7 for jumper ocations. Note the viewing ang e in asymmetric. Rotating the disp ay 180° wi
affect the apparent view ang e. See Section 7 for view ang e.
Remove Screw and
Door

LC1200R User’s Guide 021-0183-00 Rev A 19 of 29
6.2.2 Max Bright Jumper
The photodiode board can be removed from the system. When the photodiode board is
unp ugged the LC1200R wi defau t to the minimum brightness mode. If the user wou d
ike to disp ay to run at maximum brightness, the MAX BRIGHT, JP1, jumper must be inserted
on the inverter board. See Figure 8
Figure
Figure Figure
Figure 7
77
7
Install jumper to flip
Install jumper to
Mirror
Figure
Figure Figure
Figure 8
88
8
Insert Jumper for
Max Brightness

LC1200R User’s Guide 021-0183-00 Rev A 20 of 29
6.3 Dimming
6.3.1 Photodiode Board and Automatic Dimming Connector
The photodiode board must be mounted in the user’s system so that the photodiode is
exposed to the ambient ight. In bright conditions, the LC1200R wi adjust to maximum
brightness. In dark conditions, the LC1200R wi adjust to approximate y 25% of the
maximum uminance. Connector Pin Assignments are in Tab e 8
Tab e
Tab e Tab e
Tab e 8
88
8
Pin
PinPin
Pin
Description DescriptionDescription
Description
1 Output from photodiode anode
2 5V input from the LC12F for
photodiode cathode
3 No connection
6.3.2 Dimming Control Connector Pin Assignment and Performance
A separate connector wi a ow dimming via an ana og input and wi a ow the inverter to be
inhibited. A 5V reference and ground are provided for cases where an externa potentiometer is used
to generate the DIM input. If used, a 50k potentiometer is recommended.
Any connection made to the DIM input wi override the Automatic dimming function, thus eave the
DIM input open if using the photodiode for automatic dimming.
Connector mates with Mo ex 5264 and 42219 series.
Connector Pin Assignments:
Tab e
Tab e Tab e
Tab e 9
99
9
Pin
PinPin
Pin
Name NameName
Name
Description DescriptionDescription
Description
1 5V REF 5V source for upper eg of potentiometer, if use; current
imited with 2.2k series resistance
2 DIM 0-5V input to faci itate manua dimming; eave open if not
used. Connect to wiper of pot if used.
3 GND Ground for ower eg of potentiometer, if used
4 NC No connection
5 DISABLE Low (<0.5V) wi turn off the back ight, High (>2V) wi have no
effect on Monitor brightness
6.3.3 Automatic Brightness Mode
For Automatic Brightness Mode, insta the photodiode board so that the ambient ight conditions
are monitored and eave the DIM pin on the Dimming Contro connector open.