Yamaha RX-V2065 - AV Network Receiver, Service Manual

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RX-V2065/HTR-6295
RX-V2065/HTR-6295
14. DOCK
This menu is used to check the DOCK connector without the iPod itself.
With the power to this unit turned off, short between pins No. 14 (TX) and No. 18 (RX), between pins No. 1 (PWR) and
No. 17 (ACCPOW), between pins No. 4 (iPDET) and No. 8 (DGND). Also, connect a 10 k-ohms, 1/4 W resistor between
pins NO. 21 (DKID) and No. 8 (DGND). (Make sure that the power is turned off when shorting pins.)
Start up the self-diagnostic function and select this menu.
The check result is displayed according to the following display specifications.
DOCK CONNECTOR
All Y = “OK”
Others = “NG”
1 2 19
3 4 5 6 7 8
9 10 11 12 13 14
15 16 17 18
20 21
1
0 k-ohms
1/4 W
Check item Short pins Result Display
UART loop back test
Pins No.14 (TX)
– No.18 (RX)
OK Y
NG N
iPAP (iPod accessory power) detection
Pins No.1 (PWR)
– No.17 (ACCPOW)
IC20
pin No. 114
High = YES Y
Low = No N
iPDET (iPod installation to DOCK) detection
Pins No.4 (iPDET)
– No.8 (DGND)
IC20
pin No. 8
Low = installed Y
High = not installed N
DKID (DOCK ID) detection
Pins No.21 (DKID)
– No.8 (DGND)
*
10 k-ohms, 1/4 W
pull down
IC20
pin No. 141
10 k-ohms,
1/4 W pull down
Y
Other N
D O C K : N G N N N N
⎫
⎬
⎭
⎫
⎬
⎭
⎫
⎬
⎭
⎫
⎬
⎭
BT VERSION
The DOCK (Bluetooth module) version is displayed.
B T V : x x x x x
Note) Be sure to return the shorted pins to their original condition after executing this test.