Changhong Electronics LT55BN93L LCD Monitor User Manual LT55BN93L SPEC ver03
Guangdong Changhong Electronics Co.,Ltd. LCD Monitor LT55BN93L SPEC ver03
User Manual
Specification For
55 Inch LCD Monitor
Buyer:
Model: LT55BN93L
December, 2014
Product Specification
Page1
LT55BN93L Ver.03
CONTENT
Number Item Page
1 General Description 3
2 Product Specification 4
3 Power supply connector 5
4 Image signal input interface 6
5 Keyboard Operations Guide 7
6 Block diagram 8
7 Mechanical Characteristics 9
Product Specification
Page2
LT55BN93L Ver.03
Warning: Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Product Specification
Page3
LT55BN93L Ver.03
1. General Description
This product is used to display an image, using a DVI cable to connect the game console.
This product uses DC 24V(6A) and DC 12V(2A) power supply.
The main components
AD Board M.RT2261.5B
LCD Module LG Display LC550DUN/DUE
Frame SECC 1.2mm thickness
2. Product Specification
Display type TFT LCD
Backlight type WLED Light bar
Dead dot Less than 3
Aspect ratio 16:9
Pixel Format 1920 horiz. by 1080 vert. Pixels
Luminance, White 300 cd/m2 (Center 1 point ,Typ.)
Contrast Ratio 1200:1(Typ.)
View angle(CR>10) R/L 178 (Min.),U/D 178 (Min.)
Surface Treatment Hard coating(2H), Anti-glare treatment
of the front polarizer (Haze < 1%)
Response Time(Gray to Gray) 6ms(typ.)
Panel
Color Depth 8bit, 16.7Million colors
VGA （D-Sub 15）
Signal
Input DVI-D
640x480/720x400/800x600/1024x768/
1280x1024/1280x720/1280x768/
1360x768/1920x1080
Refresh rate 60Hz
Less than 2 Watt
(
Standb
y)
110
W
att
(
t
yp
)
Power Consumption
Less than 120 Watt
(
max
)
Power
Supply Power Input DC12V±10%/ 2A & DC24V±10%/ 6A
Outline Dimension (mm) 1274.6(L)x748.9(H)x92(D)
Net Weight 28.5Kg
Operating Temperature 0~50°C
Stora
g
e Tem
p
erature 0~60°C
Operating Ambient Humidity 10%RH to 90%RH
Stora
g
e Humidit
y
10%RH to 90%RH
Product Specification
Page4
LT55BN93L Ver.03
3. Power supply connector
Connector type: YLR-06V
Pin configuration
No Description Color of wire
1 +12V RED
2 +24V RED
3 +24V RED
4 GND(12V) BLACK
5 GND(24V) BLACK
6 GND(24V) BLACK
Product Specification
Page5
LT55BN93L Ver.03
4. Image signal input interface
Pin configuration of VGA interface
Pin No. Pin description Pin No. Pin description
1 Red 9 DDC 5V
2 Green 10 GND for Sync.
3 Blue 11 ID0
4 ID2 12 ID1(SDA)
5 GND for Data 13 H. Sync.
6 GND for Red 14 V. Sync
7 GND for Green 15 ID3(SCL)
8 GND for Blue
Pin configuration of VGA interface
Pin No. Pin description Pin No. Pin description Pin No. Pin description
1 D2- 9 D1- 17 D0-
2 D2+ 10 D1+ 18 D0+
3 D2/D4 Shield 11 D1/D3 Shield 19 D0/D5 Shield
4 D4- 12 D3- 20 D5-
5 D4+ 13 D3+ 21 D5+
6 DDC Clock 14 +5V 22 Clock Shield
7 DDC Data 15 GND for +5v 23 Clock+
8 Analog V._Sync. 16 Hot Plug Detect 24 Clock-
C1 Analog Red C2 Analog Green C3 Analog Blue
C4 Analog H._Sync. C5 Analog GND
DVI-I input
VGA input
AD Board box
Product Specification
Page6
LT55BN93L Ver.03
5. Keyboard Operations Guide
a. Auto configuration (VGA input only valid)
When monitor connected to the VGA signal and power on, it will automatically
adjust the image to the optimum image center / magnitude / phase and so on. If the
center of the image and the magnitude is not the best, press the "Auto" key, the monitor
will automatically adjust the image again.
b. Auto color management (VGA input only valid)
When replacing the VGA signal source, VGA tricolor input reference level
changes. Then monitor need to automatic color correction. When the image is black and
white content, press the "Menu" key three times.
c. Contrast adjustment (if no necessary, it is recommended not to adjust)
Press "Menu" key twice, followed by press "left / down" key twice, press the
"Menu" key once, the OSD of contrast bar will turn yellow background, then press the
"right / up" key can be added big contrast value, press the "left / down" key to decrease
the contrast value. After adjustment, press the "Auto" key three times to exit the menu
(Or automatically exit after 10 seconds).
d. Brightness adjustment
Press "Menu" key twice, followed by press "left / down" key once, press the
"Menu" key once, the OSD of brightness bar will turn yellow background, then press
the "right / up" key can be added big contrast value, press the "left / down" key to
decrease the contrast value. After adjustment, press the "Auto" key three times to exit
the menu (Or automatically exit after 10 seconds).
e. Status Indicator
Key board has an LED indicator shows working status，the indicator has three
states:
LED is red-------------No signal input or signal frequency is out of range
LED is green---------- The monitor is working properly
LED is dark------------ Shutdown or no power supply
f. Power on/of
Control Key
LED Indicator
Serial Number
FCC ID
Product Specification
Page7
LT55BN93L Ver.03
Press the "power" key can switch on or shutdown the monitor. This monitor can
store switch state before the power supply failure.
g. Other adjustments
The monitor is shipped, has all image adjustment parameters set to default the
best value, in addition to brightness/contrast should be adjusted according to the actual
signal status and user requirements, other project proposals no necessary adjustment.
If you do need to change the adjustment parameters, accordance with OSD, adjust
the following manner:
1. Press "Menu" key to enter the OSD menu, press the "Left / Down" key or
"right /" key to change menu items, frame color selected menu item turns
yellow, then press the "Menu" key to confirm the adjustment, confirmed
adjustments will turn yellow background color, press the "left / Down"
key or "right /" key to adjust the value of the selected item, press the
"Auto" key to return to the previous menu.
2. If you adjust the project mess, according to the method described above
to select "Reset" in the OSD menu, you can restore the factory default
settings. (Tips: Press the "Menu" key once, then press the "Left / Down"
key twice, then press "Menu" key once, then press the "Left / Down" key
four times, then press the "Menu" key once complete reset)
Product Specification
Page8
LT55BN93L Ver.03
6. Block diagram
lCD module(LC550DUN)
AD board(RT2261)
Keypad(5keyled1)
LED driver
Backlight
T-CON baord
CN12
CN11
CN16
DVI&VGA
YLR06V
DC Power input
+24V
+12V
+12V
LVDS signal
Key control
LED control
backlight on/off
Signal input
Product Specification
Page9
LT55BN93L Ver.03
6. Mechanical Characteristics