Sharp CD-C422 Service Manual page 41

IC701 RH-iX0191AWZZ:System Microcomputer (IX0191AW) (2/2)
Pin No. Port Name Terminal Name
56 P124 TAPE1 RUN PULSE
57 P123 TAPE MECHA STOP
58-60* P122-P120 DISC1-DISC3
61-70 FIP25-16 FL DRIVER
71 VLOAD VLOAD
72-77 FIP15-FIP10 FL DRIVER
78* P97
79,80 FIP8,FIP7 FL DRIVER
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
CONNECT WITH VDD
TAPE BIAS
TAPE REC
T1/T2
CD DSP WRQ
CD DSP RWC
CD DSP CQCK
CD DSP COIN
CD DSP SQOUT
RESET INPUT
CD DSP RES
CD T.T OPEN/CLOSE
CONNECT WITH GND
CD UP/DOWN DISC NO
T2 RUN PLSE
Lch INPUT
Rch INPUT
Input/Output
Input TAPE1 Run pluse
Input Tape mecha up state: L
Output LED drive output
Output Segment Output
Output Connect with VPP
Output Segment Output
Output Not connect
Output Segment Output
FL DRIVER FL DRIVER
DIGIT SEGMENT
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
FIP6
1
FIP5
2
FIP4
3
FIP3
4
FIP2
5
FIP1
6
FIP0
7
V
DD
8
P27
9
P26
10
P25
11
P24
12
P23
13
SCK1
14
SO1
15
SI1
16
RESET 17
P74
18
P73
19
AVSS
20
AN17
21
AN16
22
AN15
23
AN14
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Figure 41 BLOCK DIAGRAM OF IC
– 41 –
CD-C422/C422C/C2800/C2800C
Function
FL DRIVER
SEGMENT
FIP22
64
FIP23
63
FIP24
62
FIP25
61
P120
60 DISC3
P121
59
DISC2
P122
58 DISC1
P123
57
TAPE MECHA STOP
P124
56 T1 RUN PLSE
P125
55
TAPE F.P.
P126
54 VOL.0 MUTE
P127
53 MIC MUTE
V
DD
52 CONNECT WITH VDD
P70
51 TAPE MOTOR
P71
50
TAPE SOL.
P72
49 P.B MUTE
IC
48
CONNECT WITH GND
INTP0
47 REMOCON INPUT
INTP1
46
SYSTEM STOP
P02
45 TUNER SD
P03
44 POWER
P30
43 CD SL-
P31
42 CD SL+
P32
41
CD PUIN