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MICROPROCESSOR-TERMINAL DESCRIPTION
Pin No.
Function
I/O
Description
1~7
4G~10G
O
Grid output pins for FL tube.
8
+5V
Positive power supply pin
9
POWER1
O
Power supply control pin for AC outlet and FL tube.
10
SBASS-3
O
Acoustic presence control output pin
11
SBASS-2
O
Acoustic presence control output pin
12
SBASS-1
O
Acoustic presence control output pin
13
FCE/VCE
O
Latch output pin of the function switch and
strobe output pin of the tone control
14
INPMUT
O
Audio muting control output pin
15
DATA
O
Data output pin for function switch, tone control and PLL ICs.
16
PLLCE
O
Chip enable output pin for PLL IC.
17
~RESET
I
System reset input pin.
18
CLK
O
Clock signal output pin for function switch, tone control and PLL ICs.
19
TUMUT
O
Muting output pin for tuner section.
20
GND
Ground pin for A/D converter.
21
NC
Not used.
22
STEREO
I
Stereo broadcast detection pin.
23
SD
I
Broadcast detection input pin
24
NC
Not used.
25
SIGNAL
I
Signal strength input pin
26
AREA
I
Initializing input pin for region
27
K1
I
Operation key connection pin
28
K0
I
Operation key connection pin
29
+5V
Analog power supply for A/D converter
30
+5V
Reference voltage input pin for A/D converter
31
XT1
Oscillator connection pin for sub system. Not used.
32
XT2
Oscillator connection pin for sub system. Not used.
33
GND
Ground pin
34
X1
Crystal oscillator connection pin for main system clock
35
X2
Crystal oscillator connection pin for main system clock
36
FM
O
FM indicator output pin
37
AM
O
AM indicator output pin
38
TAPE
O
TAPE indicator output pin
Pin No.
Function
I/O
Description
39
CD
O
CD indicator output pin
40
MD
O
MD indicator output pin
41
CDR
O
CDR indicator output pin
42
LINE/DVD
O
LINE/DVD indicator output pin
43
ENERGY
O
ENERGY SAVE indicator output pin
44
RDSSCK
I
Clock input pin from RDS decoder
45
~POFF
I
Power failure detection pin
46
SYSIN
I
System code input pin
47
REMIN
I
Signal input from remote controller
48
IC
Inner connection pin
49
SYSOUT
O
System code output pin
50
RDSSIG
I
Quality check signal from RDS decoder.
51
RDSDATA
I
Data input pin from RDS decoder.
52
+5V
Positive power supply pin
53
ROTB
I
Rotary encoder connection pin for Input selector
54
ROTA
I
Rotary encoder connection pin for Input selector
55
POWER2
O
Power supply control pin for Power amplifier
56
SBASS A
O
Acoustic presence indicator output pin
57
SBASS B
O
Acoustic presence indicator output pin
58
VOLDOWN
O
DOWN signal output pin for Master volume
59
VOL UP
O
UP signal output pin for Master volume
60~70
P1~P11
O
Segment output pin for FL tube
71
Vload
Pull down resistor connection pin for FL tube
72~77
P12~P17
O
Segment output pins for FL tube
78~80
1G~3G
O
Grid output pins for FL tube.
R-805TX
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