Table of Contents
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Keyboard
Windows 95 keys
Internal & external keyboard work simultaneously
Battery
Vendor & model name
Battery Type
Pack capacity
Cell voltage
Number of battery cell
Package configuration
Package voltage
LCD Inverter Specification FOR 14.1"
Panel List
No.
LCD Type
1
14.1" SVGA
TFT
2
14.1" SVGA
TFT
General Description
This inverter is designed for the CCFL of
two signals to control the LCD brightness. One is the Enable, which turn on and turn off the birightness of
LCD. The other is the PWM, which tune the brightness by modulating the duty cycle. This inverter uses open
loop control circuit and meets with safety requirements.
Features
1. +5V Fixed input voltage
2. Birghtness adjustment by PWM duty cycle
3. Current Limited function, meet with safety requirement
Inverter Characteristics
No
Parameter
.
1
Input
voltage
2
Input
current
3
Lamp
Current
4
Lamp
voltage
28
Item
Item
Vendor
HANSTAR
IBM
α
Symbol
Min.
+5V
4.75
Iin
--
IL
5.50
Yes
Yes
Panasonic/SUMSUNG
Li-ion
57Wh
V/cell
8
4 cells in series, 2 series in parallel
14.8V
Frequency range
Model No.
(Min./Typ./Max)
HSD141PX11-
40/50/60KHz
A REV1
ITXG77X
40/60/65HKz
550 14.1" LCD which are using on the
Typ.
Max.
4.85
4.95
---
1A
5.75
6.00
3.0
625
Specification
Specification
Lamp current
(mArms)
Min/Typ/Max
20-6.5mA
2.5-6.4mA
α
550 notebook. We use
Unit
Conditions
V
A
mArms
Enable= H,
PWM Duty = 100%
mArms
Enable = H,
PWM Duty = 30%
At IL = 6.0 mArms
Vrms
Chapter 1
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