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6-14. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC801 CXP83120A-041Q
(SYSTEM CONTROLLER, LCD DRIVER)
Pin No.
Pin Name
I/O
Description
1
TAPE-END
I
Tape end detect sensor input terminal “H” input when the tape end detected
2
RDS-CLK
I
Serial data reading clock signal input from the RDS decoder (IC804)
(Used for the AEP and UK models only)
3
REMOCON
I
Sircs remote control signal input from the remote control receiver (IC802)
4
MOT-CON
O
Capstan/reel motor on/off control signal output terminal “H”: motor on
5
SOL-CON
O
Trigger plunger on/off control signal output terminal “H”: plunger on
6
T-MODE
I
Head position detect switch input terminal “L”: forward direction, “H”: reverse direction
7
REG-CON
O
Main system power supply on/off control signal output terminal “H”: power on
8
CD-CLK
O
Serial data transfer clock signal output to DSP/SSP on the CD block (at CD function)
9
TUNED
I
Tuning detection signal input from the tuner pack “L”: tuned
10
CD-DATA/
TU-DATA/
SDA
O
Serial data output to DSP/SSP on the CD block (at CD function)
PLL serial data output to PLL IC on the tuner pack (at tuner function)
I
2
C data output to the TDA7439 (IC301) (all functions)
11
CD-SQCK
O
Subcode Q data reading clock signal output to DSP on the CD block (at CD function)
12
CD-SQSO/
RDS-DATA
I
Subcode Q data input from DSP on the CD block (at CD function)
RDS serial data input from the RDS decoder (IC804) (at tuner function)
(RDS decoder: used for the AEP and UK models only)
13
TRAY-OPEN
O
Motor drive signal output to the disc tray open/close motor driver (IC309) “H” active *1
14
CD-MUTE
O
Muting on/off control signal output to the CD block “H”: muting on
15
TRAY-CLOSE
O
Motor drive signal output to the disc tray open/close motor driver (IC309) “H” active *1
16
CD-SENSE1
I
Internal status detection monitor input from CD block
(for FZC, DFCT1, TZC, etc.) (at CD function)
17
CD-XRST
O
Reset signal output to the CD block “L”: reset
18
CD-SENSE2/
TU-COUNT
I
Internal status detection monitor input from the CD block
(for MIRR, DFCT2, etc.) (at CD function)
PLL count data input from PLL IC on the tuner pack (at tuner function)
19
CD-LATCH/
TU-CE
O
Serial data latch pulse output to DSP on the CD block (at CD function)
PLL serial chip enable signal output to PLL IC on the tuner pack (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)
O
Muting on/off control signal output to the power amplifier (IC101, 201)
“H”: muting on
O
Standby on/off control signal output to the power amplifier (IC101, 201)
“L”: standby mode
O
VIDEO/MD function control signal output terminal
“H”: VIDEO/MD (“L” output when other functions)
O
Power supply on/off control signal output of the tuner pack (+10V)
LED drive signal output of the TUNER indicator (D855) “H”: tuner power on (LED on)
O
LED drive signal output of the DSG (Dynamic Sound Generator) indicator (D856)
“H”: LED on
27
CD-SYNC
O
LED drive signal output of the CD SYNC indicator (D857) “H”: LED on
28
SCK
O
Serial data transfer clock signal output to the TDA7439 (IC301)
29
TU-CLK
O
PLL serial data transfer clock signal output to PLL IC on the tuner pack (at tuner function)
*1 Disc tray open/close motor control
Stop
Table In
Table Out
Brake
TRAY-OPEN (pin
)
“L”
“L”
“H”
“H”
TRAY-CLOSE (pin
)
“L”
“H”
“L”
“H”
Terminal
Mode
qd
qg
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