Insignia 19KK44 Service Manual page 67

（11）No sound from earphone or Audio Out
No sound from earphone or Audio Out
Check if voltage of N405/N410-8# is 5V ?
Yes No
Check if there is a Check out peripheral
signal to N405/N410-3#/5# ? circuits of 5V
No Yes
Check if voltage of
Check out main chip
N405/N410-2# is high ?
Yes No
Check out Check out peripheral
N405 and N410 circuits of Mute