JVC MX-KB2 Schematic Diagrams

2-2
7
TO 3CD DECK
FM RECEIVER
HEADER
IC 602
TA2099N
IC 600
TC9257 PLL
LOGIC DECK-TP
BIAS OSC R/P SWITCH
INVERTER CIRCUIT
U101
TA8189
4CH Pre+Rec
AMP With ALC
IF
+9V
ENCODE VOLUME
REMOTE RECEIVER
SC6122
KEY BOARD SECTION
REC SIGNAL OUTPUT
U201 TC9422F
SYSTEM ELECTRONIC VOLUME
(Tone control Input
selector Main volume)
U404 TC94A02F
CD ROM DECODE
MP3DECODE
DA CONVERTER
U401 TC9462
DIGITAL SERVO
1 BIT DA CONVERTER
U402 TA2153
RF AMPLIFIER
PICK UP
VFD
U500 SC6311
VFD CONTROL / DRIVER
KEY SCAN
CUP
87EP26F-4K76
H CASSETTE A
L CASSETTE B
REC-E
H-PLAY
L-REC
+9V
JOB-A
JOB-B
CLK
DATA
STB
KEY2
FIL AMENT
AC3.3V
STANDBY LED
GVSW
CDRW GAIN CONTROL
DATA AND CONTROL BUS
+5V
VCC
LED500
R503 680R
L CH
R CH
SDA
REQ
SCL
U406
TC74HC14
R CH
L CH
R CH
L CH
CK
DATA
STB
+9V
R832
10K
R831
10K
R CH
L CH
R CH
L CH
EN500
45
3 2 1
S501
CD 2
AUX INPUT
+5V
E
D
A
B
C
F
LD
R F
RFPP
RFCT
FEO
LIMIT SW
D803
IN4001
SYS_MUT
Q812
8050
Q813
8050
LOW LOGIC DETECT
PROTECT ENABLE
Q860.861.864.865
OVERLOAD
DETECT
PROTECT
ENABLE
IC801 STK402-050
+VC
-VC
ADDRESS BUS
DATA BUS
VDD 3V
VDOT 3.3V
U405 SRAM (SDJ)
128K X 8 (15ns)
VDD 3.3V
WHEN USE HEAD PHONE
THE CONTROL VOLTAGE
IS LOGIC LOW LEVEL
+5V
FOO
TRO
DMO
FMO
U403 TA2092N
DIGITAL SERVO DRIVER
+9V
F-
T-
T+
F+
CN402
TO CD DECK
DM+
DM-
FM-
FM+
SLT
+5V
HEAD PHONE
Q862
8550
R862
10K
R877
22K
Q867
5050
GRID VOLTAGE-27V
AC 3.3V
FILAMENT VOLTAGE
+6V TO CUP
ECO
POWER ON
ECO LOGIC LOW LEVEL
+12V
CE803
100UP / 50V
D845 IN4001
U803
L7806CV
D810-D814
TR801
Q822
8050
Q809
8050
CE868
10UF/25V
R841
10K
R842 10K
R814 10K
+6V
AC12
AC11
AC10
AC9
AC8
AC7
AC6
AC5
D849-D852
D806-809
L7809CV
Q803
+VC
-VC
+12V
+9V
SW1
SW2
3CD CHANGER DRIVER SECTION
R232 10K
ML-
R233 10K
ML+ IN1
IN2
U202 TA7291S
BRIDGE DRIVER
U203 TA7291S
BRIDGE DRIVER
EMIT
M-
M+
R242 10K
R241 10K
IN2
IN1
+9V
AC3
AC4
9
10
TRANSFORMER
T802
T06910A
C801
0.01U/250V
L803
L804
T4.0A L250V
AC PLUG
8
6
5
4
3
2
11
1
RL802
CN204
MO+
MO-
CATH
EMIT
+5V
RL+
RL-
SW1
GND
SW2
1
2
3
4
5
6
7
8
9
10
1 2 3 4 5 6
1 2 3 4 5 6
KEY1
!
!
!
Block diagram

JVC MX-KB2 Specifications

General

Brand	JVC
Model	MX-KB2
Category	Stereo System
Language	English