61
CX-JT7
•
PANEL BOARD IC901 LC8767962B-51F7 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-SYS-MUTE
O
Line muting on/off control signal output terminal “H”: muting on
2
I-BU1924 DI
I
RDS serial data input from the tuner unit (AEP and UK models)
Not used (Except AEP and UK models)
3
I-BU1924 CLK
I
RDS serial data transfer clock signal input from the tuner unit (AEP and UK models)
Not used (Except AEP and UK models)
4
O-CL78646 RESET
O
Reset signal output to the CD DSP “L”: reset
5
O-CL78646 CE
O
Chip enable signal output to the CD DSP
6
O-CL78684 CE
O
Chip enable signal output to the MP3 decoder
7
O-M61529 CLK
O
Serial data transfer clock signal output to the electrical volume
8
O-BU2099 LCK
O
Serial data latch pulse clock signal output to the LED driver, tape mechanism controller, multi
controller and bass boost controller
9
O-LC72121 CE
O
Chip enable signal output to the tuner unit
10
I-CL78684 SYNC
I
Chip enable signal input from the MP3 decoder
11
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
12
XT1
I
Sub system clock input terminal (32.768 kHz)
13
XT2
O
Sub system clock output terminal (32.768 kHz)
14
VSS1
—
Ground terminal
15
CF1
I
Main system clock input terminal (8.64 MHz)
16
CF2
O
Main system clock output terminal (8.64 MHz)
17
VDD1
—
Power supply terminal (+3.3V)
18
I-SPEANA L
I
Spectrum analyzer drive (low frequency) signal input from the spectrum analyzer band-pass filter
19
I-SPEANA M
I
Spectrum analyzer drive (middle frequency) signal input from the spectrum analyzer band-pass
filter
20
I-SPEANA H
I
Spectrum analyzer drive (high frequency) signal input from the spectrum analyzer band-pass filter
21
I-MIC/I-TU SIG
I
Mic audio signal input terminal (Except AEP, UK and CIS models)
Not used (AEP, UK and CIS models)
22
I-BU UP DOWN/
CD OPEN CLOSE
I
Optical pick-up up/down detection signal and CD tray open/close detection signal input terminal
23
NC
—
Not used
24 to 26
I-KEY3 to I-KEY1
I
Front panel key input terminal (A/D input)
27
I-POWER DOWN
I
AC detection signal input terminal “L”: power down
28
I-RMC
I
Remote control signal input terminal
29
I-HOLD
I
System malfunction signal (hold signal) input from the power amplifier circuit
30 to 40
G1 to G11
O
Grid drive signal output to the fluorescent indicator tube
41 to 45
S1 to S5
O
Segment drive signal output to the fluorescent indicator tube
46
VDD3
—
Power supply terminal (+3.3V)
47
S6/I-A-MODE
I/O
Segment drive signal output to the fluorescent indicator tube and deck-A mode detection signal
input from the tape mechanism deck block “L” active
48
S7/I-A-PHOTO
I/O
Segment drive signal output to the fluorescent indicator tube and deck-A tape reel rotating
detection signal input from the tape mechanism deck block
49
S8/I-A-HALF
I/O
Segment drive signal output to the fluorescent indicator tube and deck-A cassette detection signal
input from the tape mechanism deck block “L”: cassette in
50
I-REC (FWD)
I
Recording-proof (forward direction) detection signal input from the tape mechanism deck block
“L”: recording possible
51
FIX0
—
Not used
Summary of Contents for CX-JT7
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