Haier HL22KN1 Service Manual page 50

Audio (HDMI no sound trouble)
Check U14 Pin1,2,３,４those signal input
•
N
Y
Check U14/CS4344 power
Check if U12 and RP12 are
supply is worked normal?
mounted firmly
N Y
Y
Check U14／
Check U14 circuit
CS4344 power supply
Check U12 power supply and
Remount
if CN18 is mounted firmly?
N Y
Check U12 circuit
Change U12
Or remount