Samsung RS757LHQESR/ Series Service Manual page 61

DISASSEMBLY AND REASSEMBLY
10) When there is problem in the sound function
<Caution> T he Panel PBA Power Terminals are sensitive to static electricity. So, please take care
while repairing or measuring values.
START
"Option Setting - Sound" is off?
NO
The Panel PBA CN501 and the speaker
are normal?
YES
After replacing the Speaker, the sound is
normal?
NO
Replace Panel PBA
End
YES
NO
Re-connect the Panel PBA and the
YES
60
Raise up the Volumn
YES
Sound is normal?
NO
Speaker
Replace Speaker