Audio Check; Audio Sound Check; Audio Control Test - Acer P221W Service Manual

Acer
5.4.4 EDID data: (For example)
P223 Analog
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00 FF FF FF FF FF FF
0
00 00
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0F 50
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95 0F
3
36 00 DA 28
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54 11
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30 30
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00 50
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P223 DVI
0
00 FF FF FF FF FF FF
0
00 00
1
0F 50
2
95 0F
3
36 00 DA 28
4
54 11
5
30 30
6
00 50
7

6. AUDIO CHECK

6.1 Audio Sound Check

6.1.1.1. Apply audio source of test program, (1)voice "LEFT" and "RIGHT" ;(2)500mVrms sine wave that
sweep from 200Hz to 20 KHz, into audio input (light blue), it should be that L speaker sounds
while "LEFT" and R speaker sounds while "RIGHT"
6.1.1.2. Set the volume control (on OSD) at max (100%). It should be that no buzz or rattling sound occurs
over the sweep frequency range.

6.2 Audio control test

6.2.1.1 When OSD is not on screen, press key " ►"or "◄ ", volume adjustment bar appears on screen and
value will grow or decrease and sound volume of speakers should be changed.
If the functional test had been passed, adjust volume bar to be at 90% before exit OSD.
After inspection, set the audio control out of OSD.
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Service Manual
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