Can Not Power On - Acer AT4220A Service Manual

Symptoms

Can Not Power on

A A A
Power code Power code Power code
Plug in? Plug in? Plug in?
LED Bright? LED Bright? LED Bright?
LED Bright LED Bright LED Bright
Green color ? Green color ? Green color ?
LCD Panel LCD Panel LCD Panel
can Display ? can Display ? can Display ?
END END END
51
no no no
Check Power code Check Power code Check Power code
Replace Power board or Main board Replace Power board or Main board Replace Power board or Main board
no no no
Or IO board or All cable Or IO board or All cable Or IO board or All cable
Check Remote control Check Remote control Check Remote control
no no no
and keypad ? and keypad ? and keypad ?
Replacement Remote control or Replacement Remote control or Replacement Remote control or
IR board or Keypad board IR board or Keypad board IR board or Keypad board
Check panel's Check panel's Check panel's
no no no
all cable all cable all cable
Replacement Cable Replacement Cable Replacement Cable
/ / /
NG NG NG
no no no
Check M/B Check M/B Check M/B
Replacement M/B Replacement M/B Replacement M/B
OK OK OK
Replacement M/B Replacement M/B Replacement M/B
Replacement Panel Replacement Panel Replacement Panel
Chapter 3