JVC MX-G65V, Service Manual, Page: 37 / 89

MX-G68V/MX-G65V
1-37
KA22291 (JIC1) : Cassette amp.
23 22 21 8 20 19 18 15
24
16
17
9
1
2 3 4 5 7 6 10
11
12
13
14
PB
NF(2) PR IN(2)
R/P
SW
MUTE
SW
MUTE
(IN2) ALC RECOUT(2)
100K
PRE
RECORD
LREF
PLAYBACK
LREF
PRE
NF
100K
INPUT
PB.BIAS
REC.BIAS
INPUT
N.F
MODE CONTROL
/BIAS CIRCUIT
PU
NF(1)
PB IN(1) A/B
SW PB GND MUTE
IN(1)
REC
OUT(1)
PB OUT(1)
REC GND
Vcc
Vcc
PBOUT(2)
100K
PRE
INPUT
N.F
ALC
DET
PRE
N.F
INPUT
REC NF(2)
REC IN(2)
REC IN(1)
REC IN(1)
100K
ALC TIME CONSTANT
R/P SW A-IN B-IN
A/B SELECT S/W
A-IN B-IN
Pin No.
I/O
Function
1 GND - Ground
2 V
O1
O
Output 1
3 V
Z1
-
Phase compensation
4 V
CTL
I Motor speed control
5 V
IN1
I
Input 1
6 V
IN2
I
Input 2
7 SV
CC
- Supply voltage ( Signal )
8 PV
CC
-
Supply voltage (Power )
9 V
Z2
-
Phase compensation
10 V
O2
O Ooutput 2
1 2 3 4 5 6 7 8 9 10
GND
V
O1
V
Z1
V
CT
L
V
IN1
V
IN2
SV
CC
V
O2 PV
CC
V
Z2
KA3082
DRIVER OUT
PRE DRIVER
LOGIC SWITCH
TSD
BI
AS
1 2 3 4 5 6 7 8 9 10
GND V
O1
V
Z1 V
CTL
V
IN1
V
IN2
SV
CC
PV
CC V
Z2
V
O2
KA3082 (SIC4) : Bi-directional DC motor driver
3.Block Diagram
1.Pin layout
2.Pin function
Symbol