Sharp CD-C602 Service Manual page 36

CD-C602,CP-C602
IC2 VHiLC78622N-1: Servo/Signal Control (LC78622N) (2/2)
Pin No. Terminal Name Input/Output
50* SFSY (NC)
51 SBCK
52* FSX (NC)
53 WRQ
54 RWC
55 SQOUT
56 COIN
57 /CQCK
58 /RES
59* TEST11 (NC)
60* 16M (NC)
61 4M
62 TEST5
63 /CS
64 TEST1
Note: The same potential must be supplied to the power terminals (VDD, VVDD, LVDD, RVDD, XVDD).
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC701 RH-iX0217AWZZ: System Microcomputer (IX0217AW)
LCD S12
SEG12
LCD S13
SEG13
LCD S14
SEG14
LCD S15
SEG15
LCD S16
SEG16
LCD S17
SEG17
LCD S18
SEG18
LCD S19
SEG19
LCD S20
SEG20
LCD S21
NC
LCD S22
NC
LCD S23
NC
LCD BP0
NC
LCD BP1
NC
LCD BP2 NC
LCD BP3 NC
LCD BP4 NC
LCD BP5 NC
LCD BP6 NC
LCD BP7 NC
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Output Output terminal of synchronous signal of subcode frame. It drops when subcode stands by.
Input Clock input terminal to read subcode. Schmit input (Connected to 0V when not used.)
Output Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation.
Output Output terminal to stand by output of subcode Q.
Input Input terminal of read/write. Schmit input.
Output Output terminal of subcode Q.
Input Command input terminal from microcomputer.
Input Clock input terminal to fetch command input, or pick up subcode from SQOUT. Schmit input.
Input Reset input terminal of LC78622. When turning on power, set it at "L".
Output Output terminal for test. Used in the open state ("L" output as ordinary).
Output Output terminal of 16.9344Hz.
Output Output terminal of 4.2336MHz.
Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
Input Chip selection input terminal. Pull-down resistor is integrated.
Connected to 0when not controlled.
Input Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V.
80 79 78 75 74 73 72 71
77 76
1
2
3
4
5
6
7
8
9
10
IX0217AW
11
12
13
14
15
16
17
18
19
20
21 22 23 26 27 28 29 30
24 25
Figure 36 BLOCK DIAGRAM OF IC
Function
70 69 68 67 66 65 64 63 62 61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
31 32 33 34 35 36 37 38 39 40
– 36 –
SPAN
P60
X2 SYSTEM CLOCK
X1 SYSTEM CLOCK
IC
CONNECT VDD
XT2(NC) NC
XT1(NC) NC
VDD(+5V)
+5V
POWER(NC)
P33
POWER
P32
DSP RESET
P31
SL-
P30
COIN
P23
CQCK
P22
RWC
P21
SL+
P20
SQOUT
P13
PUIN
P12
DISC NO
P11
REC
P10
WRQ
P03