Main Board Failure Check - Haier HL19KN2 Service Manual

9-2. Main board failure check

State: No Sound
No Sound
(All Mode)
Check the input
Source
pass
Check
input/output
pass
Check
input/output
pass
Check
input/output
pass
Check
Speaker
pass
Check
Sperker wire
fail
fail
the
fail
the
fail
the
fail
the
the
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Service Manual
Model No.:
Change Source input
Re-soldering or change
IC U16
IC U13
Re-soldering or change
IC U15
IC U55
Re-soldering or change
IC U12
IC U2
Change the Speaker