Backlight Inverter Unit; Ccfl(Cold Cathode Fluorescent Lamp) Characteristics - Akai LCT2765TD Service Manual

Note (3) The specified power supply current is under the conditions at Vcc = 5 V, Ta = 25 ± 2 ºC, f
whereas a power dissipation check pattern below is displayed.
a. White Pattern
c. Vertical Stripe Pattern

3.2 BACKLIGHT INVERTER UNIT

3.2.1 CCFL (Cold Cathode Fluorescent Lamp) CHARACTERISTICS (
Parameter
Lamp Voltage
Lamp Current
Lamp Starting Voltage
Operating Frequency
Lamp Life Time
Active Area
Active Area
Symbol
Min.
-
V
W
4.2
I
L
-
V
S
-
F 50
O
50,000
L
BL
b. Black Pattern
B
B
Value
Typ. Max.
1120 -
4.7 5.2
- 1650
-
1500
- 70
60,000
-
75
Preliminary
v
Active Area
R G B R G B
R G B R G B R
R G B R G B R
R G B R G B
Ta = 25 ± 2 ºC)
Unit
V I = 4.7mA
RMS L
mA
RMS
V (2), Ta = 0 ºC
RMS
V (2), Ta = 25 ºC
RMS
KHz
Hrs
= 60 Hz,
Note
(1)
(3)
(4)