Acer AL1914 AL1914 Service Guide - Page 50

Electrical characteristics (Tamb=25°) Audio amplifier(USE Panasonic VP-7723A Audio Analyzor. ) Item Input Voltage(V) Input Current(m A) Audio Voltage Gain Frequency Response Signal to Noise ratio Total harmonic distortion Cross talk Output Watt. Volume Control Audio Input Freq. Spec. Comment Min. Typ. Max. - 0.5Vm - s - 500 800 500m Vrms 1KHz - - 6 d B Volume Max.,load 4 Ω 500m Vrms 300Hz-20KH -10dB - +10d B Volume Max.,load 4 Ω z 500m Vrms 1KHz - - -40dB Volume Max.,load 4 Ω 500m Vrms 1KHz 1% except speakers distortion 500m Vrms 1KHz - - -30dB Volume Max.,load 4 Ω 500m Vrms 1KHz - - 0.5W Volume Max.,load 4 Ω - - - Analog Speakers Maximum power Impedance Frequency response range Total harmonic distortion : 2 W per speaker(max) : 4 ohm +/- 15 % @ 1kHz 1.0Hz : 300 Hz - 20 kHz (S.P.L. - 10 dB) : Less than 5 % @ 0.125 W 1kHz - 50 -