AVIC-X930BT/XNUC
79
5
6
7
8
5
6
7
8
C
D
F
A
B
E
CN1901
HOST I/F
No.
1 CP_RESET
2 SDATA
VCC33*0.7or more VCC33*0.2 or less
VCC33*0.7or more VCC33*0.2 or less
VCC33*0.7or more VCC33*0.3 or less
VCC33*0.7or more VCC33*0.3 or less
3 SCLOCK
4 D+
5 D-
Fig. 14.2: USB Circuit Communication Wave
VCC33*0.7or more
IC1501
DVD-LSI
D-
D+
I2C_SCL
I2C_SDA
CP_RESE
Standard value 1
Standard value 1
Standard value 2
Standard value 2
DGND
Check 14: Is USB Circuit OK?
<Outline>
The data is transmitted through D+, D- and SDA of HOST I/F while playing USB/IPOD.
USB memory uses only D+ and D-, but IPOD uses SDA (DATA) and SCL (CLOCK)
in addition to D+ and D-.
Fig. 14-1: USB Circuit
<Check Method>
1.USB Memory: Play a song from USB memory and check D+ and D- with the DGND standards.
2.iPod: Connect iPod and check CP_RESET, SDA and SCL with the DGND standards until the pioneer log appears.
Play a song from iPod and check D+/D- with the DGND standards.
When it does not conform to the standards, check appropriate line, main parts shown in the above figure,
soldering of peripheral parts and malfunctions in parts.
Checking spot (stylus)
*Until the pioneer log appears after connecting the iPod
*Until the pioneer log appears after connecting the iPod
Summary of Contents for AVIC-F930BT
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Page 80: ...AVIC X930BT XNUC 80 1 2 3 4 1 2 3 4 C D F A B E Side A SCLOCK SDATA D CP_RESET D DGND2 ...
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