Acer AT3720A Service Manual page 56

AT3720A Troubleshooting Guideline
1. Can not power on
A
Power code
Plug in?
LED Bright?
LED Bright
Green color ?
LCD Panel
can Display ?
END
50
no
Check Power code
Replace Power board or Main board
no
Or IO board or All cable
Check Remote control
no
and keypad ?
NG
Replacement Remote control or
IR board or Keypad board
Check panel's
no
all cable
Replacement Cable
/
OK
no
Check M/B
Replacement M/B
Replacement M/B
Replacement Panel
Chapter 4