Harman JBL BAR 2.1 - AUX Input Not Working

AUX IN cannot w
ork
AU
XINcannot
work
Go
Insteadof
new24pinline
Checkthe
24pincable(XP7)tomainboardof
connectyesornot?
Replacethe
oldwiththenewAUboardto
theEUTworking.
Replacethe
AUboard. 
No
Yes
No
Yes
Checkfrom
mainboardtheU14power
supplyisnormal?（SYS_5V_ADC、
SYS 3V3 ADC
）

Replacethe
U14.
YES
ReplacePCBA
formainboard.
NO
5-3