Block Diagram - JVC MX-KB2 Schematic Diagrams

Block diagram

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