Yamaha neoHD YMC-700, Руководство по обслуживанию

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61
YMC-700/YMC-500
YMC-70
0/YMC-50
0
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
COM
INH
C
B
A
11
10
9
6
3
13
14
15
12
1
5
2
4
1
2
3
4
5
6
7
8 9
10
16
15
14
13
12
11
Y4
Y6
COM
Y7
Y5
INH
GND
GND
V
CC
Y2
Y1
Y0
Y3
A
B
C
INPUTS
ON
CHANNEL
INH
L
L
L
L
L
L
L
L
H
L
L
L
H
H
H
H
X
C
L
L
H
H
L
L
H
H
X
L
H
L
H
L
H
L
H
X
L
Y1
Y2
Y3
Y4
Y5
Y6
Y7
None
Y0
B A
DOCK type (15 pin of C382) Bluetooth iPod No connected
A/D value (3.3 V=255) 5 – 25 120 – 140 250 – 255
Destination U
Ohm (R3863 DIGITAL P.C.B.) 8.2 k
Ohm (R3864 DIGITAL P.C.B.) 1 k
V 0.27 – 0.44
Detection value 27 ±4
Model name YMC-700 YMC-500
Ohm (R3865 DIGITAL P.C.B.) 8.2 k 5.6 k
Ohm (R3866 DIGITAL P.C.B.) 1 k 5.6 k
V 0.27 – 0.44 1.57 – 1.72
Detection value 21 – 34 121 – 133
Pin No. Port Name Function Name Detail of Function
1 Y4 DC_PRT Digital AMP DC protection
2 Y6 DEST2 Destination 2
3 COM ADC_COM1 SPI bus COM (IC381)
4 Y7 DOCK_ID DOCK detection (Normal DOCK or Bluetooth adaptor)
5 Y5 DEST1 Destination 1
6 INH DGND Ground of external
7 GND DGND Ground of external
8 GND DGND Ground of external
9 C SELECT C ADC selector C
10 B SELECT B ADC selector B
11 A SELECT A ADC selector A
12 Y3 IP_DET iPod detection
13 Y0 DEST1 Destination detection
14 Y1 IP_AP iPod AP
15 Y2 DOCK_ID Dock ID
16 Vcc +3.3S Power 3.3V
Selector1
IC382: SN74LV4051APWR (DIGITAL P.C.B.)
8-channel analog multiplexers/demultiplexers
DOCK detection for AD port
Pull-up resistance 10 k-ohms
DEST1
Destination detection for A/D port
DEST2
Model detection for A/D port
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