26 Chapter 1
NOTE: 1. Li-ion Battery: Connect 1K % ohm resistor to GND in Battery PCB.
NOTE: B/I pin: Battery can be Charged/Discharged only while this pin is connected to GND.
LCD Inverter Specification
There are two control signals that come form system to control lamp brightness. One signal is named DAC_BRIG, which limits current to meet LCD lamp current specification. Another one is named PWM, which adjusts lamp brightness. This inverter brightness is adjusted by PWM burst mode. The PWM burst mode is to turn on and off the lamp at rate of 150Hz. The effective brightness is varied with the duty cycle.Windows logo key Yes
Internal & external keyboard work
simultaneously
Yes
Battery
Item Specification
Vendor & model name Panasonic/Sanyo
Battery Type Li-ion
Pack capacity 60Wh
Cell voltage 3.7V/cell/2000mAh High discharg e rate
Number of battery cell 8
Package configuration
Pin 1
Pin 2
BATT+: Battery+, Battery Positive Terminal
Pin 3 ID : Identify Pin (Note 1)
Pin 4 B/I : Battery-In Pin
Pin 5 TS : Connect to Thermister
Pin 6 SMD : SMBus data interface I/O pin
Pin 7 SMC : SMBus clock interface I/O pin
Pin 8
Pin 9
GND : Battery Negative Terminal
No. Panel Model Ty pe Frequency
(KHz)
Current
(mA) VS at 0 C Work
Volta ge Brightness
1LGLP171W0
1-A4-K2
17” WXGA 45/60/70 3.5/6/6.5 1500Vrms 750 Vrms
at 6mA
130/160
2 Samsung LTN170W
X-L01
17”WXGA 55/60/65 4/6/6.5 1800Vrms 730 Vrms
at 6mA
145/170
3 AU B170PW0
1
17”WXGA 50/60/70 -/6/7 1500 Vrms 7 85 Vrms
at 6mA
160/190
4LGLP171W0
2-A3
17”WXGA 40/60/80 3/6.5/7 1560 Vrms 720 Vrms
at 6.5mA
145/170
Keyboard
Item Specification
5±
°