JVC KS-FX621 Service Manual page 29
Cassette receiver
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Also See for KS-FX621:
- Instructions manual (32 pages) ,
- Service manual (55 pages) ,
- Installation & connection manual (4 pages)
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4.9 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
CD-CH
IMD
14
IBL
15
IAL
16
TUNER
• Block diagram
21
31
2
19
16
15
13
11
14
22
20
18
17
• Pin functions
Pin No. Symbol I/O
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.
SCL
32
VCC
31
OUTRR
30
OUTRF
29
TR
28
B2R
27
B1R
26
IVR
25
ILR
24
23
QSR
22
IDR
21
Vref
ICR
20
CAP
19
IBR
18
TAPE
IAR
17
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
5
7 6
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 No. Symbol I/O
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 O Output right front.
30
OUTRR O Output right rear.
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
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.
-
Supply voltage.
I
Serial clock input.
KS-FX621
(No.49825)1-29
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