Acer service manual Audio output SPEC, DDC data, Acer -LCD-B243HL

Acer Acer –LCD-B243HL

4.7 Audio output SPEC

Items

Specification

Min TYP MAX

TEST CONDITIONS

Output power (W)	1.6	2.0	2.4	THD+N = 10%﹐T 1KHz 1Vrms
Output impedance (Ω)	3.4	4	4.6	AT 1KHz 1Vrms
Total harmonic distortion plus noise	---	---	10%	Po≦ 2.0W
Signal to noise ratio (dB)	40	---	---	THD+N≦ 5%
PWM frequency (KHz)	200	250	300

Note: The low pass RC Filter (R=100Ω / C=0.047uF) for Class-D Output Power and THD+N Measurement

4.8 DDC data

EDID File Format : VESA’s EDID Standard Version #3, Revision #0,

EDID Structure : Version #1, Revision #3.

EDID Data Table : See the attached table (for example)

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