Acer 1800 User Manual
Page 34
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 discharge 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
Type
Frequency
(KHz)
Current
(mA)
VS at 0 C
Work
Voltage
Brightness
1
LG
LP171W0
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 785 Vrms
at 6mA
160/190
4
LG
LP171W0
2-A3
17”WXGA
40/60/80
3/6.5/7
1560 Vrms 720 Vrms
at 6.5mA
145/170
Keyboard
Item
Specification
5
±
°