Audio Check; Audio Sound Check; Audio Control Test - Acer AL1717 Service Manual

Acer
5.4.4 EDID data: (For example)
For InnoLux MT170EN01_ V7 Panel
0 1
0 00 FF
1 01 0F
2 11 50
3 01 01
4 13 00
5 53 0E
6 30 30
7 00 41

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.
2 3 4 5 6
FF FF FF FF FF
01 03 08 22 1B
54 BF EF 00 01
01 01 01 01 30
52 0E 11 00 00
00 0A 20 20 20
30 30 30 30 30
4C 31 37 31 37
7 8 9 A B
00 04 72 46 AD
78 E8 DC 55 A3
01 01 01 01 01
2A 00 98 51 00
1E 00 00 00 FD
20 20 20 00 00
30 30 30 30 0A
0A 20 20 20 20
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Service Manual
C D E F
00 00 00 00
59 48 9E 24
01 01 01 01
2A 40 30 70
00 38 4B 1E
00 FF 00 30
00 00 00 FC
20 20 00 CS