Panasonic SA-MAX5000PN - No Output Sound; Check Point

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7.7. No Output Sound
CD Play
USB Play
Bluetooth Play
Tuner Mode
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check IC4202,
IC4005 Main P.C.B
NG
Press Play
FL Display "Track & Count"
NG
Output Sound
No Problem
Found
KOKOKO
CD Mode
Check CD Mechanism
& FFC connection
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check IC4202,
IC4005 Main P.C.B
NG
Insert USB Thumdrive
FL Display "USB"
Press "Play"
NG
Output Sound
No Problem
Found
OK KOKO
USB Mode
Check USB Thumdrive
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check IC4202,
IC4005 Main P.C.B
NG
Press Play
FL Display "BLUETOOTH"
NG
Output Sound
No Problem
Found
OK OK OK
Bluetooth Mode
Re-connect Bluetooth
into the Device
Press Power Button
of Unit or Remote Control
to Turn ON the Unit
Check IC4202,
IC4005 Main P.C.B
NG
Search for Tuner Signal
NG
Output Sound
No Problem
Found
OK OK OK
FM/AM Mode
Check Antenna
Wire Connection &
Tuner IC