Ic Data - Yamaha CDC-775 Service Manual

IC DATA

µ
IC301 : PD78P078GF-3BA
µ
8bit -COM
No. Name
Port
1 OPSW
P120/RTP0
2 CLSW
P121/RTP1
3 TBL POS
P122/RTP2
4 MUTE
P123/RTP3
5 RES
P124/RTP4
6 DMUTE
P125/RTP5
7 P126/RTP6 TLOCK
8 FLOCK
P127/RTP7
9 IC
IC
10 X2
X2
11 X1
X1
12 VDD
VDD
13 XT2
XT2
14 XT1
XT1/P07
15 RESET
RESET
16 REM
P00/INTP0/T100
17 BLKCK
P01/INTP1/T101
18 LED
P02/INTP2
19 DOWNSW
P03/INTP3
20 UPSW
P04/INTP4
21 FLSW
P05/INTP5
22 CLDCK
P06/INTP6
23 AVDD
AVDD
24 AVREF0
AVREF0
25 PON
P10/ANI0
26
P11/ANI1
27
P12/ANI2
I/O
I Opened state of tray sensing switch input. Opened state at "L".
Closed state of tray sensing switch input. Closed state at "L".
I
Table position detect signal input.
I
O Sound output at "H" and sound output muted at "L".
O Hardware reset output of MN35511. Reset at "L".
Mute output to MN35511. Muted at "H".
O
Tracking servo drawing signal input from MN35511. Drawn at "L".
I
I Focus servo drawing signal input from MN35511. Drawn at "L".
GND
Ceramic oscillator. (5MHz)
+5V
N.C.
GND
I Reset input.
Input from remote control receiving unit.
I
Sub code, block clock input from MN35511.
I
O Auto display off LED control.
I PU unit down limit switch input. DOWN at "L".
PU unit up limit switch input. UP at "L".
I
Feed origin switch input. Feed origin at "L".
I
I MN35511 subcode frame clock
+5V
+5V
I Power ON/OFF detect
N.C.
N.C.
Function
CDC-775
16