JVC MX-J270V

MX-J270V
1-32
Volume, bass treble and surround can be also controlled externally by giving DC voltage
through VC (volume control) terminal, BC (bass control) terminal, TC (treble control)
terminal and SC (surround control) terminal.
Impedance of VC, TC and BC terminals is 10 K (Typ.).
Impedance of SC terminal is 200K (Typ.).
BH3854 (IC306) : E.Volume
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A-GND
IN1
NF1
BVN1
BIN1
BV01
TIN1
TVO1
OUT1
Vcc
SC
PORT1 PORT2 PORT3 PORT4
VSS
RIP
IN2
NF2
BVN2
BIN2
BVO2
TIN2
TVO2
OUT2
VC
TC
BC
CLK
DATA
LATCH
VREF
2K
47K
47K
20K
20K
20K
200K
20K
20K
10K
10K
10K
Vcc
TONE CONTROL
( BASS )
(TREBLE)
Vcc
VOLUME
VOLUME
MATRIX SURROUND SOUND
VOLUME
CONTROL
3.8V
Ref.Voltage
( BASS ) (TREBLE)
TONE CONTROL
VOLUME
2.Block diagram
1.Terminal layout
32 17
116