Acer AL2021 Servis Kılavuzu - Sayfa 33
Monitör Acer AL2021 için çevrimiçi göz atın veya pdf Servis Kılavuzu indirin. Acer AL2021 47 sayfaları.
Ayrıca Acer AL2021 için: Servis Kılavuzu (47 sayfalar)
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2. No Characters , Missing one Color
No
Change Inverter
3. No Audio
Check Signal Source
Or change CN9
Change Cable
YES
Check Inverter
And CN2 OK ?
No
Check Panel or Change
Connector (30Pin) or Cable
NO
Change VGA Cable
NO
NO
No Characters
Missing one color
Check 1.8V , 2.5V
, 3.3V Output ?
YES
Check CN2 pin Output
From U5 to LCD panel ?
NO
Check U1?
YES
Check X'TAL X1
14.318Mhz ?
YES
Check H,V
SYNC ?
YES
Change U5 or Main board
NO AUDIO
Check Input Signal
CN9 OK ?
OK
Check Speaker
NO
OK ?
OK
Check Connector
CN6, Cable
OK
Check OSD Control
NO
Mute and Volume ?
OK
Check
NO
U5 PinAD7 Mute ?
U9 Pin11 Volume ?
OK
Change Main Board
- 33 -
No
Check or Change U6 ,U3, U4
No
Change U1
No
Change X1
Change Speaker
Change XU1
Change U5 or U9