Xc-Is22Cd - Pioneer XC-IS22CD Service Manual

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PDC083A (CD ASSY : IC1501)
• CD micro computer
•
Pin Function
No. Name
1 NC
2 CDMUTE
3 XCDCE
4 BUCK
5 /HS
6 XRST
7 VCS
8 NC
9 NC
10 NC
11 XVCRST
12 (+5V)
13 NC
14 GND
TE
L 13942296513
15 CF1
16 CF2
17 VDD
18 BUS3
19 BUS2
20 BUS1
21 BUS0
22 WCLK
23 ED0
24 WEN/D1
25 -
26 -
27 TEST1
28 TEST2
29 NC
30
I (GND)
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I/O Description
- -
O CD MUTE control (H:MUTE)
O CD BUS communication (TC9495F CHIP
ENABLE)
O CD BUS communication (TC9495F CLK
OUT)
O CD IC (TC9495F) Nomal/High speed select
ACTIVE ("H" :NORMAL)
I Reset output of TC9495F and CL680T
("L" : ACTIVE)
I Communication with system microcomputer
(CHIP SELECT)
O -
I -
I -
O Reset input
O Because it is unused, connects with +5V.
O -
O GND
O Connects with a ceramic oscillator (10MHz)
O Connects with a ceramic oscillator (10MHz)
O Connects with a +5V
O
O CD BUS communication (TC9495F DATA
O INPUT OUTPUT)
O
O The terminal (It is unused in the mask ROM)
(I) for the flash microcomputer writing
O The terminal (It is unused in the mask ROM)
(I/O) for the flash microcomputer writing
O The terminal (It is unused in the mask ROM)
(I) for the flash microcomputer writing
O -
O -
O Checkers test mode input ("H" : MODE
START & CD PLAY
O Checkers test mode end ("H" : CD STOP &
MODE END
O -
connects with the terminal GND . (It is not
- possible to use for VFD)
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No. Name
39
I GND
45
46 VDD
47
I (GND)
50
51 VP
52
I (GND)
71
72 VDD
73
I (GND)
84
85 ZDET
86 CD INSIDE
87
I (GND)
89
Q Q
3 6 7 1 3
90 VDD
91
I (GND)
94
95 VCV
96 VCS
97 VCLK
98 NC
99 NC
100 NC
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2 9 9 4 2 8
I/O Description
- GND
- GND
- unused (GND connection)
- GND
-
- unused (GND connection)
-
- GND
- unused (GND connection)
Zero detection ("H" : ZERO)
I CD INSIDE SW ("L": INSIDE)
- unused (GND connection)
1 5 0 5 8 2 9 9 4
I +5V
- unused (GND connection)
O Communication with system microcomputer
(DATA INPUT/OUTPUT)
I Communication with system microcomputer
(DATA INPUT)
I Communication with system microcomputer
(CLK)
O -
I/O -
O -
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XC-IS22CD

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