Mainboard Failure Check - Haier HL55XZK22 Service Manual

Service Manual
Model No.: HL55XZK22a

9-3. Mainboard Failure Check

Pass
Check
input/output
Pass
Check
input/output
Pass
Check
input/output
Pass
Check
Speaker
Pass
Check
Sperker wire
56
Symptom: No Sound
Fail
the
Fail
Fail
the
Fail
the
Fail
the
the
Change Source input
Re-soldering or change
IC U13
Re-soldering or change
IC U55
Re-soldering or change
IC U2
Change the Speaker