Table of Contents
Advertisement
HCD-DC1
6-17. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC801 CXP83124A-050Q (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
1
TAPE-END
I
Tape end detect sensor input terminal "H": input when the tape end detected
2
RDS-IN
I
Serial data reading clock signal input from the RDS decoder (IC804)
3
REMOCON
I
Sircs remote control signal input from the remote control receiver (IC802)
4
O
MOT-CON
Capstan/reel motor on/off control signal output terminal "H": motor on
C-DATA/
Serial data output to the DSP/SSP (IC101) (at CD function)
5
O
TU-DATA
PLL serial data output to the PLL IC (LC72137M) (at tuner function)
6
T-MODE
I
Head position detect switch input terminal "L": forward direction, "H": reverse direction
7
O
REG-CON
Main system power supply on/off contorl signal output terminal "H": power on
Serial data transfer clock signal output to the DSP/SSP (IC101) (at CD function)
8
C-CLK/TU-CLK
O
PLL serial data transfer clock signal output to the PLL IC (LC72137M) (at tuner funcion)
9
JOG-C (BASS)
I
Jog dial pulse input from the rotary encoder (C phase input) Not used (fixed at "L")
10
SOL-CON
O
Trigger plunger on/off control signal output terminal "H": plunger on
11
C-SQCK
O
Subcode Q data reading clock signal output ti the DSP (IC110) (at CD function)
C-SQSO/
Subcode Q data input from the DSP (IC101) (at CD function)
12
I
RDS-DATA
RDS serial data input from the RDS decoder (IC804) (at tuner function)
13
TRAY-OPEN
O
Motor drive siganl output to the disc tray open/close motor driver (IC320) "H": active *1
14
HOLD
O
Automatic power control hold signal output to the RF Amp (IC103)
15
TRAY-CLOSE
O
Motor drive signal output to the disc tray open/close motor driver (IC309) "H": active *1
16
JOG-D (BASS)
I
Jog dial pulse input from the rotary encoder (D phase input) Not used (fixed at "L")
17
TUNED
I
Tuning detection signal input from the LA1837M (IC1) (at tuner function)
Internal status detection monitor input from the DSP (IC101)
SENSE2/
18
I
(for MIRR, DFCT2, etc.) (at CD function)
TU-COUNT
PLL count data input from the PLL IC (LC72137M) (at tuner function)
C-LATCH/
Serial data latch pulse output to the DSP (IC101) (at CD function)
19
O
TU-CE
PLL serial chip enable signal output to the PLL IC (LC72137M) (at tuner function)
20
JOG-B
I
Jog dial pulse input from the rotary encoder (RV801 VOLUME) (B phase input)
21
JOG-A
I
Jog dial pulse input from the rotary encoder (RV801 VOLUME) (A phase input)
22
AMP-MUTE
O
Muting on/off control signal output to the power amplifier (IC101, 201)
23
JOG-G
I
Jog dial pulse input from the rotary encoder (G phase input) Not used (fixed at "L")
24
HP-CHK
I
Headphone jack IN/OUT check detection signal input terminal
Power supply on/off control signal output of the tuner section (FM +7.5V)
25
TU-ON
O
LED drive signal output of the TUNER/BAND indicator (D853)
"H": tuner power on (LED on)
LED drive signal output of the DSG (Dynamic Sound Generator) indicator (D854)
26
D. S. G.
O
"H": LED on
27
CD-SYNC
O
LED drive signal output of the CD SYNC indicator (D856) "H": LED on
28
SCK
O
Serial data transfer clock signal output to the BD3861FS (IC323)
29
JOG-E
I
Jog dial pulse input from the rotary encoder (E phase input) Not used (fixed at "L")
*1 Disc tray open/close motor control
Mode
AUX1
AUX2
Terminal
TRAY-OPEN (pin qd)
"L"
AUDIO_SEL2 (pin qg)
"L"
Description
"H": muting on
USB
CD-C
"L"
"H"
"H"
"H"
"L"
"H"
Pin No.
Pin Name
I/O
30
JOG-F
I
Jog dial pulse input from the rotary encoder (F phase input) Not used (fixed at "L")
31
JOG-H
I
Jog dial pulse input from the rotary encoder (H phase input) Not used (fixed at "L")
32
TC-SW
I
Half detect (side A and B) switch and cassette in detect switch input terminal (A/D input)
Disc tray position detect switch (S1) input terminal (A/D input)
33
TRAY-SW
I
"L": close position, "M": open position, "H": moving
Key input terminal (A/D input) S813 to S816 (TUNER/BAND, TUNING +/-, FUNCTION
34
KEY3
I
input)
35
Key input terminal (A/D input) S801 to S806 (I/1, CD u/x/M/m/Z keys input)
KEY2
I
Key input terminal (A/D input)
36
KEY1
I
S807 to S812 (TAPE n N/x/M/m/X, CD SYNC keys input)
37
SIMUKE/TEST
I
Destination setting terminal (A/D input)
System reset signal input from the reset signal generator (IC803) "L": reset
38
RESET
I
For several hundreds msec. after the power supply rises, "L": is input, then it changes to "H"
39
EXTAL1
O
Main system clock input terminal (4.19MHz)
40
XTAL1
O
Main system clock output terminal (4.19MHz)
41
VSS
—
Ground terminal
42
XTAL2
O
Sub system clock output terminal (500kHz) Not used (open)
43
EXTAL2
I
Sub system clock input terminal (500kHz) Not used (fixed at "L")
44
AVREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
45
AVSS
—
Ground terminal (for A/D conversion)
46
VL
O
Liquid crystal display bias on/off control signal output terminal
47 to 49
VLC3 to VLC1
—
Power supply terminal for the liquid crystal display bias
50 to 53 COM0 to COM3
O
Common drive signal output to the liquid crystal display (LCD801)
54 to 85
SEG0 to SEG31
O
Segment drive signal output to the liquid crystal display (LCD801)
Reset signal output to the DSP (IC101) and BA5974FP (IC102) (at CD function)
86
C-XRST/FM ON
O
FM power supply ON/OFF control signal output to the tuner section (FM +7.5V
(at tuner function)
Recording muting on/off selection signal output to the Tape section
87
REC-MUTE
O
"H": muting on, "L": muting of
88
SDA
O
Serial data output to the BD861FS (IC323)
89
VDD
—
Power supply terminal (+5V)
90
NC
—
Not used (open)
91
VSS
—
Ground terminal
92
TX
O
Sub system clock output terminal (32.768kHz)
93
TEX
I
Sub system clock input terminal (32.768kHz)
Power supply on/off control signal output of the CD section (+5V)
94
CD-ON
O
LED drive signal output of the CD u indicator (D852) "H": CD power on (LED on)
Recording/playback selection signal output to the BA3126N (IC402)
95
REC/PB
O
"L": playback mode, "H": recording mode
Line muting on/off selection signal output to the Tape section
96
L-MUTE
O
"H": muting on, "L": muting off
97
AU-MUTE
O
muting on/off control signal output terminal "H": muting on
Power supply on/off control signal output of the cassette holder back light
98
TC-ON
O
LED drive signal output of the TAPE n N indicator (D855) "H": back light on (LED on)
99
WP
I
Wakeup control signal input terminal
100
C-SCOR
I
Subcode sync (S0+S1) detection signal input from DSP on the CD section (at CD function)
32
32
Description
Advertisement
Table of Contents
