Universal - Special Terminal System (Usb, Dock) - Yamaha RX-V3900 Service Manual

– U: Universal
(Special terminal system (USB, Dock)) –
U1. DOCK
This menu is used to test the DOCK connector without
the iPod itself. After turning off the power, short between
pins No. 14 (TX) and No. 18 (RX), between pins No. 1
(PWR) and No. 17 (ACCPOW) and between pins No. 4
(iPDET) and No. 8 (DGND). (Make sure that the power
is turned off when shorting pins.)
Start the self-diagnostic function and select the
menu.
The check result is displayed according to the follow-
ing display specifications.
Note) Be sure to return the shorted pins to their origi-
nal condition after executing this test.
15 16
9 10 11
3 4 5
1
19
DOCK CONNECTOR
Check item /
Is UART loop pack check result OK? /
Is detect function of iPod Accessory Power OK? /
Is detect function of iPod installation to DOCK OK? / IC402 (FUNCTION P .C.B.) pin No. 28 state
Is the identification of the DOCK type correct? /
17 18
12 13 14
6 7 8
2
20 21
IC105 (D-VIDEO P.C.B.) pin No. R25 state High = YES
IC402 (FUNCTION P.C.B.) pin No.
125 state
All Y / = OK
Others / = NG
Judgment /
YES
NO
Low = No
Low = installed /
High = not installed /
iPod DOCK
Excluding iPod DOCK /
RX-V3900/DSP-AX3900
Display /
⎫
Y
⎬
N ⎭
⎫
Y
⎬
N ⎭
⎫
Y
⎪
⎬
⎪
N
⎭
Y
⎫
⎪
⎬
N ⎪
⎭
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