Loop Back Check; Bt Version - Yamaha R-S300 Service Manual

R-S300
5. DOCK

5-1. LOOP BACK CHECK

This menu is used to check the DOCK connector without the iPod itself.
With the power turned off, short the pins of the DOCK connector as shown in the figure below.
Start up the self-diagnostic function and select this menu.
The check result is displayed according to the following display specifications.
Note) Be sure to return the shorted pins to their original condition after executing this test.
15 16
9 10
3 4
1
DOCK CONNECTOR
Check item
UART loop back test
IPD_N_APDET (iPod accessory power) detection
IPD_N_DET (iPod installation to DOCK) detection
DOCK_TYP (DOCK ID) detection

5-2. BT VERSION

The DOCK (Bluetooth module: YBA-10) version is displayed.
28
17 18
11 12 13 14
5 6 7 8
19 20 21 2
IC502
pin No. 23
IC502
pin No. 68
IC502
pin No. 69
B T V : - - - - - - - -
D O C K : O K Y Y Y Y
All Y = "OK"
Others = "NG"
Result
OK
NG
Low = YES
High = NO
Low = installed
High = not installed
10 k-ohms, 1/4 W pull down
Other
Display
Y ⎫
⎬
⎭
N
Y ⎫
⎬
⎭
N
⎫
Y
⎬
⎭
N
⎫
Y
⎬
⎭
N