Mainboard Failure Check - Haier HL19K2A Service Manual

9-3. Mainboard Failure Check

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
Symptom: No Sound
Fail
the
Fail
the
Fail
the
Fail
the
the
Change Source input
Fail
Re-soldering or change
IC U13
Re-soldering or change
IC U55
Re-soldering or change
IC U2
Change the Speaker
Service Manual
Model No.: HL19K2
49