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V420B1-L04 Schematic ( PDF Datasheet ) - CHI MEI

Teilenummer V420B1-L04
Beschreibung TFT LCD Module
Hersteller CHI MEI
Logo CHI MEI Logo 




Gesamt 30 Seiten
V420B1-L04 Datasheet, Funktion
Global LCD Panel Exchange Center
www.panelook.com
Issue Date:Apr.24.2007
Model No.: V420B1-L04
Approval
TFT LCD Approval Specification
MODEL NO.: V420B1 - L04
Customer: _________________________________
Approved by:_______________________________
Note:
Approved By
Reviewed By
TV Head Division
LY Chen
QRA Dept.
Tomy Chen
Product Development Div.
WT Lin
Prepared By
LCD TV Marketing and Product Management Div.
Ken Wu CY Chang
1
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V420B1-L04 Datasheet, Funktion
Global LCD Panel Exchange Center
www.panelook.com
Issue Date:Apr.24.2007
Model No.: V420B1-L04
Approval
1.5 MECHANICAL SPECIFICATIONS
Item
Min.
Typ.
Max.
Unit Note
Horizontal (H)
982.0
983.0
984.0
mm
Module Size Vertical (V)
575.0
576.0
577.0
mm (1), (2)
Depth (D)
51.3
52.3
53.3
mm
Weight
12800
12900
13000
g-
Note (1) Please refer to the attached drawings for more information of front and back outline dimensions.
Note (2) Module Depth does not include connectors.
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V420B1-L04 pdf, datenblatt
Global LCD Panel Exchange Center
www.panelook.com
Issue Date:Apr.24.2007
Model No.: V420B1-L04
Approval
3.2 BACKLIGHT UNIT
3.2.1 CCFL (Cold Cathode Fluorescent Lamp) CHARACTERISTICS
(Ta = 25 ± 2 ºC)
Parameter
Symbol
Min.
Value
Typ.
Lamp Input Voltage
VL -
1520
Lamp Current
IL 5.3
5.8
-
Lamp Turn On Voltage
VS
-
-
-
Operating Frequency
FL 40
-
Lamp Life Time
LBL 50,000 60,000
Max.
-
6.3
2370
2160
70
-
Unit Note
VRMS -
mARMS (1)
VRMS Ta = 0 ºC
VRMS Ta = 25 ºC
KHz
Hrs (2)
3.2.2 INVERTER CHARACTERISTICS
(Ta = 25 ± 2 ºC)
Parameter
Symbol
Min.
Value
Typ.
Max.
Unit
Note
Power Consumption
PBL -
170 180 W (5), IL =5.8mA
Power Supply Voltage
VBL 22.8
24.0
26.4
VDC
Power Supply Current IBL -
7.1 7.5 A Non Dimming
Input Inrush Current
--
- 11 Apeak
Input Ripple Noise
--
- 912 mVP-P VBL=22.8V
Oscillating Frequency
FW 47
50
53 kHz
Dimming frequency
FB 150 160 170 Hz
Minimum Duty Ratio
DMIN
-
25
-%
Note (1) Lamp current is measured by utilizing AC current probe and its value is average by measuring master
and slave board.
Note (2) The lamp starting voltage VS should be applied to the lamp for more than 1 second after startup.
Otherwise the lamp may not be turned on.
Note (3) The lamp frequency may produce interference with horizontal synchronous frequency of the display input
signals, and it may result in line flow on the display. In order to avoid interference, the lamp frequency
should be detached from the horizontal synchronous frequency and its harmonics as far as possible.
Note (4) The life time of a lamp is defined as when the brightness is larger than 50% of its original value and the
effective discharge length is longer than 80% of its original length (Effective discharge length is defined
as an area that has equal to or more than 70% brightness compared to the brightness at the center point
of lamp.) as the time in which it continues to operate under the condition at Ta = 25 ±2к and IL =6.0~
12
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