20
19
44
45
46
47
48
49 ~ 55
56
57
58 ~ 79
80
81
82
83 ~ 85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
COIN
RWC
SQOUT
WRQ
NC
SEG19 ~ SEG25
VDD2
VSS2
SEG26 ~ SEG47
INIT
PLAY
REC
COM0 ~ COM2
DS DET2
TRY3
P, CONT
VSS3
VDD3
HSP
MUTE
CD
QSURR
VRLA
VRDA
VRCL
BEAT
CE
DATA
Serial data output to CD DSP
Read/write control to CD DSP
Subcode Q data input from CD DSP
CD DSP subcode Q output standby check input
Not connected.
LCD segment output
Positive terminal of power supply
Negative terminal of power supply
LCD segment output
Microprocessor initial setting read
TAPE playback detection
TAPE recording detection
LCD common output
CD mechanism disc size detection
CD mechanism tray 3 detection
Main power supply input detection
Negative terminal of power supply
Positive terminal of power supply
TAPE dubbing high speed mode SW
Audio signal muting SW
CD power SW
Q SURROUND SW
Audio control IC data latch
Data output to audio control IC
Clock output to audio control IC
TAPE BEAT switching
TUNER PLL IC chip enable
Data output to TUNER PLL IC
O
O
O
O
–
O
–
–
O
I
I
I
O
I
I
O
–
–
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
O
–
I
O
–
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
I
I
O
O
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19, 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
CLK
TUSW
LED ROCK
LED POP
LED JAZZ
LED TA
LED TU
LED AUX
LED CD
CLKSFT
TUDO
RST
XT1
XT2
VSS1
CF1
CF2
VDD1
KEY1, KEY2
STEREO
TRY NO
ELV POS
TRY EDGE
DS DET1
FRM SW
HOLD
TRY1
RMT
LED CD3G
LED CD3R
LED CD2G
LED CD2R
LED CD1G
LED CD1R
FRM/TRY
ELV-DN
ELV-UP
OPEN
DRF
TRY2
CLOSE
CQCK
IC DESCRIPTION
IC, LC867232A-5L78
Clock output to TUNER PLL IC
TUNER power switch
LED lighting SW
Microprocessor clock shift SW
Data input from TUNER PLL IC
Reset input
Crystal oscillator input for clock
Crystal oscillator output for clock
Negative terminal of power supply
Ceramic oscillator input for microprocessor main clock
Ceramic oscillator output for microprocessor main clock
Positive terminal of power supply
Tact key AD input detection
TUNER stereo reception detection input
CD mechanism tray number detection
CD mechanism elevator position detection
CD mechanism tray position detection
CD mechanism disc size detection
CD mechanism frame position detection
Main power supply input detection
CD mechanism tray 1 detection
Remote control signal reception pin
LED lighting SW
CD frame/tray drive motor speed control
CD mechanism elevator motor control: Down side
CD mechanism elevator motor control: Up side
CD mechanism frame/tray motor control: Open side
Detects level of RF signal from CD ASP.
CD mechanism tray 2 detection
CD mechanism frame/tray motor control: Close side
Serial communication clock output to CD DSP
Pin No.
Pin Name
I/O
Description
Pin No.
Pin Name
I/O
Description
