Sharp CD-C421H Service Manual page 48

CD-C421H / C411H
IC701 RH-iX0223AWZZ:System Microcomputer (IX0223AW) (1/2)
Pin No. Port Name Terminal Name
1-7 FIP6-0 G06-00
8 VDD VDD
9 SCK0 C2B CLK
10 SO0 C2B DO
11 SI0 C2B DI
12 P24 C2B CE
13 P23 SUB STB
14 SCK1 SUB SCK
15 SO1 SUB SO
16 SI1 SUB SI
17 RESET RESET
18 P74 SUB RES
19 P73 TUN MUTE
20 AVSS AVSS
21 P17 TUN SD
22 ANI6 TUN SM
23 ANI5 KEY IN5
24 ANI4 KEY IN4
25 ANI3 KEY IN3
26 ANI2 KEY IN2
27 ANI1 KEY IN1
28 ANI0 ENF IN
29 AVDD AVDD
30 AVREF AVREF
31 XT1 VSS
32* XT2 N.C
33 VSS VSS
34 X1 X1
35 X2 X2
36* P37 LED LCK
37* P36 LED DATA
38* P35 LED CLK
39* P34
40* P33
41* P32
42* P31 SYS MUTE
43 P30 POWER
44 P03/INTP3 AP P
45* P02 **
46 INTP1 SYS STOP
47 INTP0 REM IN
48 IC VSS
49* P72 **
50* P71 **
51* P70 **
52 VDD VDD
53* P127 **
54-70 FIP32-16 S21-05
71 VLOAD VLOAD
72-76 FIP15-11 S04-00
77-80 FIP10-7 G10-07
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Output –
— +Power Supply
Output C2B Serial Clock Output
Output C2B Serial Data Output
Input C2B Serial Data Input
Output C2B Serial CE Output
Output Serial Stove Output For CD/TAPE Microcomputer
Output Serial Clock Output For CD/TAPE Microcomputer
Output Serial Data Output For CD/TAPE Microcomputer
Input Serial Data Input For CD/TAPE Microcomputer
Input Reset Input
Output Reset Output For CD/TAPE Microcomputer
Output Tuner Tun Mute Output
— A/D Converter Analog Power
Intput
Input Tuner Signal Meter Input
Input Key input 37 to 45
Input Key input 28 to 36
Input Key input 19 to 27
Input Key input 10 to 18
Input Key input 1 to 9
Input Tuner Initial setting input
— A/D Converter Analog +Power
— A/D Converter Reference Input
Input Sub-clock Input Connect with VSS
Output Sub-clock Output OPEN
— Connect with GND
Input Main Clock 4.19MHz
Output Main Clock 4.19NHz
Output LED IC Serial Clock Output BU2092 LCK
Output LED IC Serial Data Output BU2092 Data
Output LED IC Serial Clock Output BU2092 CLK
Output Not used OUT:L OPEN
Output Not used OUT:L OPEN
Output Not used OUT:L OPEN
Output System Mute Output
Output Power Output
— H: CD-C451 Mode LC75396
L: CD-C431 Mode LC75394
Output Not used OUT:L OPEN
Input Power Failure Input
Input Remote Control Input
— Connect with GND
Output Not used OUT:L OPEN
Output Not used OUT:L OPEN
Output Not used OUT:L OPEN
— +Power Supply
Input Not used OUT:H OPEN
Output FL Display Segment Drive
— FL Drive –Power,to be connected to –30V
Output FL Display Segment Drive
Output FL Display Grid Drive
– 48 –
Function