Pioneer X-EM11V Service Manual page 15

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[4] Operations with an iPod are not possible (only for the X-EM21V)
The message "iPod" remains displayed on the LCD.
1. Check power from IC403 (IPOD+5V).
2. Check the iPod communication line between IC701 (CA6817) and CN601.
Check of the iPod system
Select the iPod function, by pressing the INPUT button on the main unit (iPod button on the remote control unit), then insert
an iPod into the iPod dock to connect it with the DOCK connector.
1. Can the device information be displayed?
Yes
2. When a 1-kHz signal is played, are the
waveforms indicated in Fig. 11 output from
Pins 23 and 24 of IC504?
Yes
3. Are the waveforms indicated in Fig. 11 output
from Pins 22 and 32 of IC302?
Yes
4. If Yes, check the periphery of IC302.
Replace the MAIN Assy.
c IC701 - pin 30 (DET30)
V: 2 V/div. H: 10 ms/div.
d IC701 - pin 31 (DPET13)
V: 2 V/div. H: 10 ms/div.
c
d
Fig. 9 Waveform
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6
No
Check Pins 30 and 31 of IC701 or check the
peripheries of Pins 32, 33, and 34. (See Figs. 9 and 10.)
No
Check the peripheries of CN601, IC602 and
IC504.
No
Check the peripheries of IC601.
(X-EM21V only)
e IC701 - pin 32 (IPOD_CON)
V: 2 V/div. H: 2 ms/div.
f IC701 - pin 33 (IP_TX)
V: 2 V/div. H: 2 ms/div.
g IC701 - pin 34 (IP_RX)
V: 2 V/div. H: 2 ms/div.
e
f
g
Fig. 10 Waveform
X-EM21V
6
7
Replace the MAIN Assy.
Replace the MAIN Assy.
Replace the MAIN Assy.
h IC504 - pin 24, IC302 - pin 22 (Lch)
V: 1 V/div. H: 1 ms/div.
i IC504 - pin 23, IC302 - pin 32 (Rch)
V: 1 V/div. H: 1 ms/div.
h
i
Fig. 11 Waveform
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8
A
B
C
D
E
F
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