33
CDX-F5510/F5510X/F5550EE
• IC401 TDA7419TR (ELECTRONIC VOLUME) (MAIN BOARD (1/3))
Pin No.
Pin Name
I/O
Pin Description
1
ACOUTR
O
AC coupling R-ch signal output
2
ACINR
I
AC coupling R-ch signal input
3
ACINL
I
AC coupling L-ch signal input
4
ACOUTL
O
AC coupling L-ch signal output
5
SE3L
I
Single-ended input 3 L-ch
6
SE3R
I
Single-ended input 3 R-ch
7
SE2L
I
Single-ended input 2 L-ch
8
SE2R
I
Single-ended input 2 R-ch
9
SE1L
I
Single-ended input 1 L-ch
10
SE1R
I
Single-ended input 1 R-ch
11
DIFFL
I
Pseudo differential stereo signal input left
12
DIFFG
I
Pseudo differential stereo signal input common
13
DIFFR
I
Pseudo differential stereo signal input right
14
CREF
O
Reference capacitor connect pin
15
GND
—
Ground pin
16
RL
O
Second rear L-ch signal output
17
OUTRF
O
Front R-ch signal output
18
OUTRR
O
Rear R-ch signal output
19
OUTLR
O
Rear L-ch signal output
20
OUTLF
O
Front L-ch signal output
21
MUTE
I
External mute signal input
22
SCL
I
I2C bus serial clock signal input
23
SDA
I/O
I2C bus serial data signal input/output
24
VDD
—
Power supply pin (+8 V)
25
SAIN
I
Spectrum analyzer clock signal input
26
SAOUT
O
Spectrum analyzer data signal output
27
VREF
O
Voltage reference signal output
28
RR
O
Second rear R-ch signal output
