ST-SE370
14
14
• IC Block Diagrams
– MAIN Board –
5-6.
IC PIN FUNCTION DESCRIPTION
•
DISPLAY BOARD IC701 µPD78045FGF-130-3B9 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1 to 7
G7 to G1
O
Grid drive signal output to the fluorescent indicator tube (FL701)
8
VDD
—
Power supply terminal (+5V)
9
PLL CLK
O
Serial data transfer clock signal output to the PLL IC on tuner pack (TB101)
10
PLL DATA OUT
O
Serial data output to the PLL IC on tuner pack (TB101)
11
PLL DATA IN
I
Serial data input from the PLL IC on tuner pack (TB101)
12
PLL CE
O
Serial chip enable signal output to the PLL IC on tuner pack (TB101)
13
AST
I
Tuned display detection signal input from the tuner pack “L”: tuned
14
ST
I
Stereo detection signal input from the tuner pack “L”: stereo
15, 16
NC
—
Not used (fixed at “L”)
17
RESET
I
System reset signal input terminal “L”: reset
18
DC. CUT
—
Not used (open)
19
NC
—
Not used (fixed at “L”)
20
AVSS (GND)
—
Ground terminal
21
MUTE
O
Muting on/off control signal output terminal
22 to 24
NC
—
Not used (fixed at “L”)
25
EON
—
EON output control terminal Not used (open)
26
KEY1
I
Key input terminal (A/D input)
27
KEY2
I
Key input terminal (A/D input)
28
SI
I
Signal input terminal
29
AVDD
—
Analog power supply terminal (+5V)
30
AVREF
—
Reference voltage input terminal (+5V)
31
GND
—
Ground terminal
32
NC
—
Not used (open)
33
GND
—
Ground terminal
34
X1
I
Main system clock input terminal (4.19MHz)
35
X2
O
Main system clock output terminal (4.19MHz)
36 to 42
NC
—
Not used (fixed at “L”)
43
RDS DATA
I
RDS data input from the RDS decorder (IC801) (Used for the AEP and UK models only)
44
RDS CLK
I
RDS serial clock signal input from the RDS decoder (IC801) (Used for the AEP and UK models
only)
45
R1
I
Rotary encoder number of rotation detection
46
RIN
I
Remote control signal input from the remote sensor (IC702)
47
POWER
I
Power supply ON/OFF monitor
48
IC
I
Signal chip mode detection Not used (fixed at “L”)
49
NC
—
Not used (fixed at “L”)
50
R2
O
Rotary encoder phase detection
51
NC
—
Not used (fixed at “L”)
52
VDD
—
Power supply terminal (+5V)
53 to 56
IS1 to IS4
I
Setting terminal for the model
57
GND
—
Ground terminal
58 to 70
P18 to P6
O
Segment drive signal output to the fluorescent indicator tube (FL701)
71
VFL
—
Negative power supply terminal for the fluorescent indicator tube drive (–30V)
72 to 76
P5 to P1
O
Segment drive signal output to the fluorescent indicator tube (FL701)
77 to 80
G11 to G8
O
Grid drive signal output to the fluorescent indicator tube (FL701)
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
