Sony MHC-V83D

MHC-V83D
34
Sony CONFIDENTIAL
For Authorized Servicer
Tuner DAB Diagnosis Flow
Yes
Turn On
1.) Default “TUNER/DAB” function. “OFF‐AIR” is displayed on the screen display panel. or 2.) Switch to “TUNER DAB” function. “NO LABEL” is displayed on the screen display panel.
No
Check FFC connection between DAB module & MOTHERBOARD board CN600. Does it slanting or not insert properly? Check CN4502 / CL4530. Does it output the power voltage of 5.1V?
Re‐insert FFC and check again. Does it displayed “NO LABEL” / “OFF‐AIR” again?
No
Check USB function Playback. Does it read file stored inside USB?
The DAB module have problem. Replaces DAB module.
The DAB module have problem. Replaces DAB module.
The DAB module have problem. Replaces DAB module.
Checks circumference of circuit of MOTHERBOARD board IC007.
1.) “SCAN 10%” ĺ “SCAN 100%” ĺ “NoSIGNAL” is
displayed on the screen display panel. or 2.) DAB channel name “XXXXXX” ĺ “OFF‐AIR” is displayed on the screen display panel.
Check DAB Antenna wire connection. Does it fully insert?
Check DAB Antenna connector pin. Does it bent?
The sound is not outputted.
No
Re‐insert DAB Antenna wire and check again. Does it displayed “NoSIGNAL” / “OFF‐AIR” again?
Check CN4502 PIN11 / CL4529 for I2S DATA signal. Does it output the signal?
Check circumference circuit for MOTHERBOARD board IC904 & IC905.
End
End
Check sound output from other function (USB/CD/DVD/ Audio In/BT). Does the sound outputted? Refer MOTHERBOARD Mount Amplifier Diagnosis Flow (2/2).
Yes
Yes
Yes
No
Yes Yes
Yes Yes Yes
Yes
Yes Yes
No No No No No No No
End
SYSSET
2020/06/2222:32:42(GMT+09:00)