JVC KS-FX945R Service Manual page 36

6.13 TEA6320T-X (IC161) : E.volume
• Pin layout
SDA
1
GND
2
OUTLR
3
OUTLF
4
TL 5
B2L
6
B1L
7
IVL
8
ILL
9
QSL
10
IDL
11
MUTE
12
ICL
13
IMD 14
IBL
15
IAL
16
• Block diagram
21
31
2
19
16
15
13
11
14
22
20
18
17
• Pin functions
Pin
Symbol I/O
No.
1 SDA I/O Serial data input/output.
2 GND - Ground.
3 OUTLR O output left rear.
4 OUTLF O output left front.
5 TL I Treble control capacitor left channel
or input from an external equalizer.
6 B2L - Bass control capacitor left channel or
output to an external equalizer.
7 B1L - Bass control capacitor left channel.
8 IVL I Input volume 1. left control part.
9 ILL I Input loudness. left control part.
10 QSL O Output source selector. left channel.
11 IDL - Not used
12 MUTE - Not used
13 ICL I Input C left source.
14 IMO - Not used
15 IBL I Input B left source.
16 IAL I Input A left source.
1-36 (No.49875)
SCL
32
VCC
31
OUTRR
30
29 OUTRF
TR
28
B2R
27
B1R
26
IVR
25
24 ILR
QSR
23
IDR
22
Vref
21
ICR
20
CD-CH
CAP
19
IBR
18
TAPE
IAR
17
TUNER
10 8 9
POWER
SUPPLY
VOLUME 1
+20 to -31 dB
LOUDNESS
LEFT
SOURCE
SELECTOR
VOLUME 1
+20 to -31 dB
LOUDNESS
RIGHT
23 25 24
Functions
7 6 5 12
MUTE
FUNCTION
ZERO CROSS
DETECTOR
BASS
TREBLE
LEFT
LEFT
+15 dB
+12 dB
LOGIC
BASS
TREBLE
RIGHT
RIGHT
+15 dB
+12 dB
26 27 28
Pin
Symbol
No.
17 IAR
18 IBR
19 CAP
20 ICR
21 Vref
22 IDR
23 QSR
24 ILR
25 IVR
26 B1R
27 B2R
28 TR
29 OUTRF
30 OUTRR
31 Vcc
32 SCL
VOLUME 2
0 to 55 dB
3
BALANCE
FENDER REAR
VOLUME 2
0 to 55 dB
4
BALANCE
FENDER FRONT
32
HC BUS
REC
1
VOLUME 2
0 to -55dB
29
BALANCE
FENDER FRONT
VOLUME 2
30
0 to -55dB
BALANCE
FENDER REAR
I/O Functions
I Input A right source.
I Input B right source.
- Electronic filtering for supply.
I Input C right source.
- Reference voltage (0.5Vcc)
- Not used
O Output source selector right channel.
I Input loudness right channel.
I Input volume 1. right control part.
- Bass control capacitor right channel
O Bass control capacitor right channel
or output to an external equalizer.
I Treble control capacitor right channel
or input from an external equalizer.
O Output right front.
O Output right rear.
- Supply voltage.
I Serial clock input.