AVH-P6300BT/XNUC
40
1
2
3
4
1
2
3
4
C
D
F
A
B
E
5.3 DIAGNOSIS FLOWCHART
Is the image
erroneous?
Go to FE-related
repair
FE part normal?
Can playback
start?
Is the sound
erroneous?
Repair defective parts
Normal?
Replace unit
NO
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
Go to FE Check
NO
NO
NO
Replace unit
YES
Normal?
Go to FE Check
Go to FE Check
Go to FE Check
NO
YES
YES
YES
YES
NO
NO
NO
START
END
END
NO
NO
NO
NO
NO
NO
NO
Does operation
take time?
YES
YES
*1) When a flash ROM generally needs to be
replaced by service, do not replace an IC but
a core unit (as no key or others is written in a
flash alone).
Flash life
OK?
Execute check 12
AVCC5 voltage
OK?
Execute check 8
AVCC5 voltage
OK?
Execute check 8
Video circuit
OK?
Execute check 11
DACCLK
normal?
Execute check 9
SDRAM IF
OK?
Execute check 6
STANBY
OK?
Execute check 1
VD8,VCC5
Power supply voltage OK?
Execute check 7
VSENS
OK?
Execute check 4
VDD5
(VCC33,VCC12)
Power supply voltage OK?
Execute check 2
RESET
OK?
Execute check 3
27 MHz
OK
?
Execute check 5
Audio circuit
OK?
Execute check 10
NO
*1) Caution
Check Flow at MS7 Back End
