Pioneer XV-LX61DV Service Manual page 30

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QQ
3 7 63 1515 0
A
Step 4: iPod authentication process
IC408 (Pins 18,19,20,21) SPI SIMO, SPI SOMI, SPI_UCLK, SPI_nSS (SPI communication with IC801)
12
Do the SPI_SIMO
No
and SPI_SOMI etc.
perform communication
?
Yes
B
IC408 (Pin 11)
13 CPRDY (Co-Processor Ready Signal)
No
Does the
CPRDY operate
C
?
The CPRDY performs communication once immediately after
TE
the iPod is connected (when the authentication is started), and
L 13942296513
performs the communication again when the authentication
operation is completed (approximately 70 seconds later).
Yes
Operation of IC408 is OK
To step 5
D
E
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F
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When the USB playback is available and only the iPod cannot be played
* Connect the iPod and make a confirmation.
When the power supply is turned ON or
function is switched to USB iPod, check
whether the communication waveform
can be observed on these lines.
Replace of IC408.
x ao
y
. i
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8
Is the CPRST
No
(38Pin) reset? After the
reset, is it set to
High (3.3V)
?
Yes
Does the
X481 oscillate
at 32.576kHz
?
Yes
To CPRDY
Q Q
3 6 7 1 3
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.
XV-LX61DV
3
4
2 9 9 4 2 8
No
Check the pattern from
IC401.
No
Replace of IC408 and X481.
1 5 0 5 8 2 9 9 4
m
co
4
9 9
2 8 9 9