Usb, Ipod - Pioneer AVH-X1500DVD/XNUC Service Manual

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USB, IPOD

USB memory
A D+/D- communication waveform
It checks with an oscilloscope.
Reference voltage : DGND
D-
DGND
DGND
D+
B
IPOD
D+/D- communication waveform
It checks with an oscilloscope.
Reference voltage : DGND
D-
DGND
DGND
C
D+
IPOD
CP_RESET signal
A relation with NRES, At the time of RESET release
(It checks with an oscilloscope. )
Reference voltage : DGND
CP_RESET
D
DGND
NRES
DGND
IPOD
E
SCL signal
It checks by LECORY.
Reference voltage : DGND
SCL
DGND
F
62
1
2
1 ms/div 2 V/div
Waveform 7
1 ms/div 2 V/div
Waveform 9
20 ms/div 1 V/div
Waveform 11
500 μs/div 1 V/div
Waveform 13
AVH-X1500DVD/XNUC
2
3
USB memory
D+/D- communication waveform
It checks with an oscilloscope.
Reference voltage : DGND
D-
DGND
DGND
D+
Waveform 8
IPOD
D+/D- communication waveform
It checks with an oscilloscope.
Reference voltage : DGND
D-
DGND
DGND
D+
Waveform 10
IPOD
SDA signal
It checks by LECORY.
Reference voltage : DGND 2 ms/div 1 V/div
SDA
DGND
Waveform 12
3
4
200 ns/div 2 V/div
200 ns/div 2 V/div
4