Yamaha CDR-D651 Service Manual Page 12

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CDR-D651
11
µ-COM DATA
IC301 : µPD78F0058
Port Pins
NO. PIN NAME CIRCUIT NAME I/O FUNCTION
1 P15/ANI5 O (NC)
2 P16/ANI6 O (NC)
3 P17/ANI7 STAT I MN35511 status
4 AVss GND
5 P130/ANO0 GCTRL O GAIN control
6 P131/ANO1 OPEN/CLOSE O Open/close
7AV
REF1 +5V
8 P70/SI2/RxD SOUT I Serial I/O Ch.2 input (CRD-RA1)
9 P71//SO2/TxD SIN O Serial I/O Ch.2 output (CRD-RA1)
10 P72/SCK2/ASCK ACLK I Serial I/O Ch.2 clock (CRD-RA1)
11 P20/SI1 SI1 I Serial I/O Ch.1 input (MN35511)
12 P21/SO1 O (NC)
13 P22/SCK1 SCK1 O Serial I/O Ch.1 clock (MN35511)
14 P23/STB MLD O MN35511 command load
15 P24/BUSY SENSE I MN35511 sense
16 P25/SI0/SB0 O (NC)
17 P26/SO0/SB1 MDATA I/O Serial I/O Ch.1 data (MN35511 & LC75711)
18 P27/SCK0 MCLK O Serial I/O Ch.1 clock (MN35511 & LC75711)
19 P40/AD0 QCODE O SIO Ch.1 QCODE select
20 P41/AD1 SUBCODE O SIO Ch.1 SUBCODE select
21 P42/AD2 O (NC)
22 P43/AD3 STANDBY O AN8882 standby
23 P44/AD4 O (NC)
24 P45/AD5 FEED OFF O Feed off
25 P46/AD6 TRVGC O Feed gain control
26 P47/AD7 ERROR O Error
27 P50/A8 OPSW I Open switch
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