R E P L A C E M E N T P A R T S L I S; B L O C K D I A G R A - Acer AL732 Service Manual

Step 2
Check the main
board ?
12V
YES
+5.0 V ?
YES
+3.3 V ?
YES
H/V input
Signal ?
NO
Check
H/V Signal
Display ?
YES
OK !
NO
Check
Adapter, F1,
U13
NO
Check
U13,U12,R83
NO
Check
U14
YES Change
U4
Change
NO
Signal Cable