Yamaha YMC-700 Service Manual page 61

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3 7 63 1515 0
IC382: SN74LV4051APWR (DIGITAL P.C.B.)
8-channel analog multiplexers/demultiplexers
A
B
C
INH
Selector1
Pin No.
TE
L 13942296513
DOCK detection for AD port
Pull-up resistance 10 k-ohms
DEST1
Destination detection for A/D port
www
Ohm (R3863 DIGITAL P.C.B.)
Ohm (R3864 DIGITAL P.C.B.)
.
http://www.xiaoyu163.com
11
10
9
6
Port Name
1 Y4
2 Y6
3 COM
4 Y7
5 Y5
6 INH
7 GND
8 GND
9 C
10 B
11 A
12 Y3
13 Y0
14 Y1
15 Y2
16 Vcc
DOCK type (15 pin of C382)
A/D value (3.3 V=255)
Destination
x ao
y
i
V
Detection value
8
3
COM
13
Y0
14
Y1
15
Y2
12
Y3
1
Y4
5
Y5
2
Y6
4
Y7
Function Name
DC_PRT Digital AMP DC protection
DEST2 Destination 2
ADC_COM1 SPI bus COM (IC381)
Q Q
DOCK_ID DOCK detection (Normal DOCK or Bluetooth adaptor)
3 6 7 1 3
DEST1 Destination 1
DGND Ground of external
DGND Ground of external
DGND Ground of external
SELECT C ADC selector C
SELECT B ADC selector B
SELECT A ADC selector A
IP_DET iPod detection
DEST1 Destination detection
IP_AP iPod AP
DOCK_ID Dock ID
+3.3S Power supply +3.3V
Bluetooth
5 – 25 120 – 140
DEST2
Model detection for A/D port
U Model name
8.2 k Ohm (R3865 DIGITAL P.C.B.)
u163
1 k Ohm (R3866 DIGITAL P.C.B.)
.
0.27 – 0.44
27 ±4 Detection value
YMC-700/YMC-500
2 9 9 4 2 8
INPUTS
Y4 1 16 V
CC
INH C B
Y6 2 15
Y2
L L L
COM
3 14
Y1
L L L
Y7 4 13
Y0
L L H
Y5 5 12
Y3
L L H
INH 6 11
A
L H L
7 10
GND B
L H L
8 9
GND C
L H H
L H H
H X X
Detail of Function
1 5 0 5 8 2 9 9 4
iPod No connected
250 – 255
m
YMC-700
8.2 k
co
1 k
V 0.27 – 0.44
21 – 34
9 9
ON
CHANNEL
A
L Y0
H Y1
L Y2
Y3
H
L Y4
H Y5
L Y6
H Y7
X None
2 8 9 9
YMC-500
5.6 k
5.6 k
1.57 – 1.72
121 – 133
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