Yamaha MCR-330 Service Manual page 37

Pin
Port Name
No.
88 P00/D0/AN00
89 P107/AN7/KI3
90 P106/AN6/KI2
91 P105/AN5/KI1
92 P104/AN4/KI0
93 P103/AN3
94 P102/AN2
95 P101/AN1
96 Avss
97 P100/AN0
98 Vref
99 Avcc
100 P97/Adtrg/Sin4
Key input (A-D) pull-up resistance 10 k-ohms
Ohm 0
V 0 – 0.2 0.2 – 0.6
KEY0
PLAY/PAUSE
(97pin/AN0)
KEY1
INPUT
(95pin/AN1)
KEY2
(70pin/AN22)
Model distinction for AD port
Ohm 47k
V 2.5 – 3.0
A-D (3.3V=255) 194 – 233
MODEL (AN3) 93pin CRX-330
Destination for AD Port
Pull-up resistance 10 k-ohms
Ohm 47k
V 2.5 – 3.0
A-D (3.3V=255) 194 – 233
DEST (AN2) 94pin B
Function Name
I/O
(P.C.B.)
IPD_PON O
IPAU_DET AD
PS2_PRT AD
PS1_PRT AD
– AD
MODEL AD
DEST AD
KEY1 AD
Avss MCU AD ground
KEY0 AD
Vref MCU AD reference 3.3V
Avcc MCU AD power supply 3.3V
RDS_MISO SI
+1.5k +1.8k +2.7k
0.6 – 1.0 1.0 – 1.4
STOP OPEN/CLOSE
Detail of Function
iPod charging power ON/OFF control
Hi = ON / 47k pull-down
iPod audio signal detection
Whether audio signal from iPod present or not judged with
AD value
Main power supply abnormality monitored
Abnormality of FL system power supply monitored
Luminance sensor AD value input
Model identification
Destination identification
KEY1 AD value taken in / 3.3M/10k-ohms pull-up
KEY0 AD value taken in / 3.3M/10k-ohms pull-up
∞
3.1 – 3.3
OFF
OFF
OFF
CRX-330/NS-BP100
37