1-22
SS-9 Main Unit Section
5.
IC BLOCK DIAGRAMS
• System Controller (U502
µ
PD78F4225GC-8)
Pin No.
Signal Name
I/O
Function
Active
Standby
1
P15
—
Grounded.
2
MASTER
I
Remote controller's Main/Remote detect signal.
L
—
3
H.PIN
I
Headphone connection detect signal.
H
—
4
AVss
—
GND.
5
INH1
O
LCD/LED display inhibit signal.
L
L
6
LCE1
O
Chip enable signal to the LCD driver.
H
L
7
AVref1
—
Reference voltage.
8
RDI
I
Serial data input from the PLL and RDS ICs.
L/H
—
9
RDO
O
Serial data output to the PLL, RDS, LCD, VOL, LED
L/H
L
and DIR ICs.
10
RCK
O
Serial clock output to the PLL, RDS, LCD, VOL, LED
L/H
L
and DIR ICs.
11
NC
—
Not used.
12
NC
—
Not used.
13
NC
—
Not used.
14
DIFCE
O
Strobe output to the DIR IC.
H
L
15
DIFRES
O
Reset output to the DIR IC.
H
L
16
CD-SI
I
Serial data input from the CD Mechanism.
L/H
—
(Serial data input for flash ROM writing)
17
CD-SO
O
Serial data output to the CD Mechanism.
L/H
L
(Serial data output for flash ROM writing)
18
CD—SCK
I
Serial clock input from the CD Mechanism.
L/H
L
(Serial clock input for flash ROM writing)
19
CD3RES
O
Reset signal to the Mechanism CD Ass'y (No. 3).
H
L
20
CD2RES
O
Reset output to the Mechanism CD Ass'y (No. 2).
H
L
21
CD1RES
O
Reset output to the Mechanism CD Ass'y (No. 1).
H
L
22
CD3CE
O
Chip enable output to the Mechanism CD Ass'y (No. 3).
H
L
23
CD2CE
O
Chip enable output to the Mechanism CD Ass'y (No. 2).
H
L
24
CD1CE
O
Chip enable output to the Mechanism CD Ass'y (No. 1).
H
L
25
CD3EJC
I
Eject key input from the Mechanism CD Ass'y (No. 3).
L
—
26
CD2EJC
I
Eject key input from the Mechanism CD Ass'y (No. 2).
L
—
27
CD1EJC
I
Eject key input from the Mechanism CD Ass'y (No. 1).
L
—
28
NC
—
Not used.
29
NC
—
Not used.
30
LEDSTB
O
Strobe signal to the LED IC.
L
L
31
NC
—
Not used.
32
L.STBY
O
Standby LED ON/OFF control signal.
L
L
33
Vss1
—
GND.
34
NC
—
Not used.
35
NC
—
Not used.
36
ST-VOL
O
Strobe output to the Volume IC.
H
L
37
ST-TONE
O
Strobe output to the Tone IC.
H
L
38
ST-AN
O
Strobe output to the audio source switching and
H
L
Rec-out switching ICs.
39
A-EN
O
Serial signal transmission permit output to the VOL,
H
L
TONE, AN ICs.
Summary of Contents for SoundSpace 9
Page 37: ...SS 9 Main Unit Section 1 32 Fig 6 6 BLOCK DIAGRAM...
Page 38: ...2 1 SS 9 Subwoofer Section Subwoofer Subwoofer Section...
Page 45: ...3 1 SS 9 Satellite Speaker Section Satellite Speaker Section Satellite Speaker...
Page 52: ...SS 9 SS 9 SS 9 SS 9 1 4 SS Main Unit Section Main P C B Ass y...
Page 53: ...SS 9 SS 9 SS 9 SS 9 2 4 Main Unit Section CD P C B Ass y...
Page 54: ...SS 9 SS 9 SS 9 SS 9 3 4 Main Unit Section Front P C B Ass y...
