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AVIC-X930BT/XNUC
57
5
6
7
8
5
6
7
8
C
D
F
A
B
E
5.3 DIAGNOSIS FLOWCHART
BACK END section flow
Standby
OK?
Execute
check 1.
Can the
playback
start?
NO
YES
YES
YES
YES
YES
YES
YES
YES
YE
S
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
YES
NO
YES
YES
NO
START
END
END
YES
NO
NO
NO
NO
NO
YES
YES
NO
NO
NO
The product
is normal?(iPod
attestation IC)
YES
Product repair
YES
NO
NO
NO
NO
YES
NO
YES
YES
YES
NO
NO
YES
Does the
operation
take time?
Go to FE
section check.
Go to FE
section check.
Is the life of flash
memory OK?
Conduct check item 12.
Is the image
in error?
Is the video
circuit OK?
Execute check 11.
Is AVCC5
voltage OK?
Execute check 8.
Replace the unit.
Is VDD5(VCC33, VCC12)
power supply voltage OK?
Execute check 2.
Reset OK?
Execute check 3.
Is VSENS
OK?
Execute check 4.
Is 27 MHz
OK?
Execute check 5.
Is 48 MHz OK?
Execute check 13.
Replace the unit.
Replace the unit.
Replace the unit.
Go to FE
section check.
Go to the
product check.
Go to FE
section check.
Is VD8, VCC5
power supply
voltage OK?
Execute check 7.
Is SDRAM
IF OK?
Execute check 6.
Is the sound
in error?
Is the iPod play
in error?
Is the USB play
in error?
Is AVCC5
voltage OK?
Execute check 8.
Is DACCLK
normal?
Execute check 9.
Is the audio
circuit OK?
Execute check 10.
Repair the
defective part.
Normal?
Normal?
Is FE section
normal?
Go to FE related
repair process.
Is the iPod
circuit OK?
Execute check 14.
Is the USB
circuit OK?
Execute check 14.
Summary of Contents for AVIC-F930BT
Page 27: ...AVIC X930BT XNUC 27 5 6 7 8 5 6 7 8 C D F A B E ...
Page 80: ...AVIC X930BT XNUC 80 1 2 3 4 1 2 3 4 C D F A B E Side A SCLOCK SDATA D CP_RESET D DGND2 ...
Page 165: ...AVIC X930BT XNUC 165 5 6 7 8 5 6 7 8 C D F A B E ...
Page 175: ...AVIC X930BT XNUC 175 5 6 7 8 5 6 7 8 C D F A B E ...
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