Acer P244W Service Manual page 13

3.3.7 EMC
Item
TCO03
EMI
3.3.8 Reliability
Item
MTBF Prediction
CCFL Life time
Note-4: CCFL lifetime is determined as the time at which brightness of lamp is 50%. The typical
lifetime of CCFL is on the condition at 7.0mA lamp current.
3.3.9 Audio performance
Item
Preamp + Power amp
(1)Output power
(2)THD (@ 1W)
(3)S/N ratio
Speaker Driver
(1)Nominal impedance
(2)Rated input power
(3)Frequency response
(4)Output sound pressure
level
(5)Dimension of box
Audio Control
(1)Volume range
(2)Mute
Condition
Electric
Magnetic
FCC part 15J class B
EN55022 class B
Condition
Refer to MIL-217F
At 25±2℃, under 7.0mA
Condition
- 13 -
Spec
Band 1 < 10 V/m
Band 2 < 1 V/m
Band 1 < 200nT
Band 2 < 25nT
After Mass production
under 1dBuv for constant
measure. Besides DNSF
and VCCI class-2 are
optional.
Spec
> 60,000 Hours
40,000 Hours (min)
Spec
1 Wrms/CH @ 1KHz
<1%
>40dB
4 ohm
1 W/CH
180~20KHz SPL-10dB
84 ± 3 dB (1W 0.5M)
2
284x60x27mm
0 ~100 levels
On/Off
OK N. Remark
A
√
√
√
OK N. Remark
A
Excluding
√
CCFL
√
See Note-4
OK N. Remark
A
√
√
√
√
√
√
√
√
√
√