Acer AL1716V Servis Kılavuzu - Sayfa 35

Monitör Acer AL1716V için çevrimiçi göz atın veya pdf Servis Kılavuzu indirin. Acer AL1716V 47 sayfaları.

3. Panel Power Circuit

Check CN101 PIN 23-24 should have

response from 0V to 5V When we

switch the power switch from on to off

Replace panel

4. Keypad Board

OSD is unstable or not working

Is Keypad board connecting normally?

Is Button Switch normally?

Is Keypad board normally?

Check main board

Check the PPWR panel power relative circuit, Q706, Q704

In normal operation, when LED =green, R725

Should =5 V,

If PPWR no-response when the power switch

Turn on and turn off, replace the U401-TSUM16AK

Connect Keypad Board

Replace Button Switch

Replace Keypad Board