Read Sony ST-SB920 Service Manual online
— 19 —
4-7. IC PIN FUNCTION (DISPLAY BOARD)
• IC701 System Control (
• IC701 System Control (
µ
PD780205GF-040-3BA)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41 to 46
47 to 78
79
80 to 84
85 to 100
Pin Name
VDD
ANT
ATT
BAND1
BAND2
IF-B
NC
MONO
TUN
RESET
X2
X1
GND
NC
LOCK
VDD
CLK
DATA
D-IN
CE
BLN
ST
CAL
AST
AVSS
MUTE
EON
PGM
DATA RDS
R2
KEY 2
KEY 1
SI
AVDD
AVREF
RIN
R1
RDS CLK
POWER
GND
IS 1 to 5
P1 to P32
V LOAD
P33 to P37
G1 to G16
I/O
—
—
—
—
—
—
—
—
—
I
O
I
—
—
I
—
O
O
I
O
—
I
—
I
—
O
O
—
I
O
I
I
I
—
I
I
I
I
I
—
I
O
—
O
O
Function
Power supply (+5V).
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
Not used. (Open)
System reset input.
Oscillation signal output (4.19MHz).
Oscillation signal input (4.19MHz).
Ground.
Not used. (Open)
Lock signal input.
Power supply (+5V).
PLL clock to FE101.
PLL data to FE101.
PLL data from FE101.
PLL Latch to FE101.
Not used. (Open)
Stereo display detection.
Not used. (Open)
Auto stop signal detection.
Ground.(Analog)
Muting signal output.
External control.
Not used. (Open)
RDS data input.
Rotary encoder phase detection.
Key input.
Key input.
Signal input.
Analog power supply (+5V).
Reference voltage (+5V).
Remote control input.
Rotary encoder number of rotation detection.
RDS data clock input.
Power supply ON/OFF monitor.
Ground.
Model detection.
Fluorescent indicator tube, segment drive.
Power supply (-30V).
Drives indication tube.
Fluorescent indicator tube, grid drive.
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