Pioneer DEH-20UB Service Manual page 58

1
A
*DP
2 V/div
(DM
2 V/div
ACC OFF with USB(iPod) device connecting.
B
C
D
E
F
58
1
2
)CPRST
50 ms/div 2 V/div
⁄SDA
2 V/div
¤SCL
2 V/div
iPod Authentication Operation
DEH-20UB/XS/UC
2
3
500 ms/div
3
4
4