Acer TravelMate -550, Service Manual

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Chapter 1 31
Environment: Temperature: Operating temperature: 0
°
C~
55
°
C
Storage temperature: -20
°
C~
80
°
C
Humidity: 0~90% without condensation
MTBF: 5000 hours
NO.1: 14.1” XGA TFT, HANSTAR, HSD141PX11-A
NOTE: Please pay attention to the fellowing:
*1. Make sure open lamp output voltage should be within starting voltage specification.
*2. Inverter should pass human body safety test.
*3. Inverter should no smoking by any component open/short test.
*5. Transformer temperature rising should be less than 30 degree C.
*6. Transformer voltage stress should not be over 85% under any condition (turn on overshoot transient and
line transient).
*7. Wave from requirement: 1.27<=Ip/Irms<= 1.56
*8 Audio noise should be less than 36dB at 10cm distance.
*9 Ip implies zero to positive peak value of lamp current.
*10 I-p implise zero to negative peak value of lamp current
11 Current
Waveform
factor 1.27 1.56 Multiple OR *10
12 Unbalance
Rate -10% 0 +10% Multiple
LCD
Item Specification
Vendor & model
name IBM ITXG77X Hannstar
HSD141PX11_A
Rev.1 LG LP105X1-G2CP IBM ITSX95C
Mechanical Specifications
LCD display area
(diagonal, inch) 14.1 14.1 15.0 15.0
Display technology TFT TFT TFT TFT
Resolution XGA (1024x768) XGA (1024x768) XGA (1024x768) SXGA+
(1400x1050)
Supports colors 262K 262K 262K 262K
Optical Specification
Brightness control keyboard hotkey keyboard hotkey keyboard hotkey keyboard hotkey
Contrast control No No No No
Suspend/Standby
control Yes Yes Yes Yes
Electrical Specification
Inverter Characteristics
No
.
Parameter Symbol Min. Typ. Max. Unit Conditions
rms
p
I
I
2
rms
p
I
I
−
rms
p p
I
I I
−
−