Pioneer AVH-P5900DVD/XN/UC Service Manual page 35

5
5.3 BACK END SECTION FLOW
Does the NO
operation
take time?
NO
YES
Is the life of flash
NO
memory OK?
Conduct check item 12.
NO
YES
NO
section check.
5
6
START
Can the
playback
start?
NO
Is the image
Is the sound
in error?
in error?
YES
Is AVCC5
Is AVCC5
NO
voltage OK?
voltage OK?
Execute check 8.
Execute check 8.
YES
Is the video
Is DACCLK
NO
circuit OK?
normal?
Execute check 11.
Execute check 9.
YES
Is the audio
NO
circuit OK?
Execute check 10.
Go to FE
section check.
Repair the
defective part.
Go to FE
NO
Normal?
END
AVH-P5900DVD/XN/UC
6
7
NO
Standby OK?
Execute check 1.
YES
YES
YES
Is SDRAM
NO
IF OK?
Execute check 6.
YES YES
Is VD8, VCC5
NO
power supply
voltage OK?
Execute check 7.
YES
Go to FE
section check.
YES
YES
FE section check.
Is FE section
normal?
YES
Replace the unit.
NO
Normal?
YES
END
7
8
Is VDD5
NO (VCC33, VCC12)
power supply
voltage OK?
Execute NO
check 2.
YES
NO
Reset OK?
Execute check 3.
YES
NO Is VSENS
OK?
Execute check 4.
YES
Is 27 MHz
NO
OK?
Execute check 5.
YES
YES
Replace the unit.
NO
Go to FE related
repair process.
8
A
B
C
D
E
F
35