JVC MX-K50 Administrator Guide

COMPACT COMPONENT SYSTEM
No.21121SCH
Nov. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
MX-K50 Area suffix
UW --- Brazil,Mexico,Peru
U --------------- Other Areas
SCHEMATIC DIAGRAMS
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
2-1
2-2
2-7~10
CD-ROM No.SML200211
MX-K50
SP-MXK50 SP-MXK50
CA-MXK50
D I S C C H A N G E
C O MPU P L A Y C O N T R O L
STANDBY/ON
S T A ND B Y
CD - R/RW P L AYBACK
TUNING
CLOCK
/TIMER
DISPLAY
PH O N E SR
E P E A T
R E C S T A R T
/S T O P
C D R E C
S T A R T
DU BB I N G
PR O G R A MR A ND O M
T A P E B T A P E A
T APE
CD
FM
/AM
A C T I V E B A SS
E X. L E V E L
S O UND
M
O D E
MX - K50
CD 2
CD 3
ACTIVE BASS EXT ENSION
CD
3
FULL - LOGIC CONTROL CD SYNCHRO RECORDING
AUX
CD 1
DISC
SKIP
V
O L UME
V
O L UME
+
–
S T ANDBY/ O N
123
456
789
10
+10
S L EEP AC
T IVEBASS
EX.
L EVE L
S O UND
M
O DE
FM M
O DE
T APE A/B
KARA
O KE ECH
O
FADE
MU
T IN G
FM/AM
AUX
CD
T APE
RM – SMXK50UREMOTE CONT ROL

MX-K50
In regard with component parts appearing on the silk-screen printed side (parts side) of
the PWB diagrams, the parts that are printed over with black such as the resistor ( ),
diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)

ABCD E F G
1
2
3
4
5
2-1
MX-K50
Block diagram
TUNER
AUX IN
AUX
AUDIO
AUDIO
TAPE P
TAPE P
TAPE P
TAPE R
TAPE R
TAPE R
TAPE P/R
CD
CD
MIC
MIC
MIC
MIC
MIC
TAPE R
IC301
MIC AMP
EIC1
ECHO IC
FIC4
FIC2
HIC1
FIC1
SOURCE
SELECTOR
& E.VOL
AIC2
STK402-120
UIC1
MICOM
IC201
DSP
IC301
4ch Motor-D
IC101 RF AMP.&
SS Processor
IC402 Motor-D
IC401 Motor-D
CON 01
JIC1
TAPE IC

HABC DEFG
1
2
3
4
5
MX-K50MX-K50
2-2
SHEET 1/5
TUNER signal
MAIN signal TAPE REC. signal TAPE P.B. signal
CD signal
Main section
Standard schematic diagrams
To UCW6
Sheet 2/5 (5, A)
To CON01
Sheet 5/5 (2, B)
To CW106
Sheet 4/5 (5, G)
To MCW1
Sheet 2/5 (2, A)
To ACW1
Sheet 3/5 (2, B)
CW301CW302
FCW2
To ACW2
Sheet 3/5 (5, B)
CIRCUIT DESCRIPTION
Main
FL display & System control
Amp.
CD
Tuner
SHEET
NUMBER
1/5
2/5
3/5
4/5
5/5
Parts are safety assurance parts.
When replacing those parts, make
sure to use the specified parts.
MX-K50 ASIA MAIN

ABCDEFG
1
2
3
4
5
2-3
MX-K50
FL display & System control section
To UCW1
To UCW5
SHEET 2/5
To UCW2
To FCW3
Sheet 1/5 (5, A)
To ECW1
Sheet 1/5 (3, A)
To CW105
Sheet 4/5 (1, E)
To UCW7
MX-G500/K50 ASIA FRONT

HABC DEFG
1
2
3
4
5
MX-K50MX-K50
2-4
SHEET 3/5
MAIN signal
Amp. section
To RW2
Sheet 1/5 (3, G)
To FCW2
Sheet 1/5 (5, G)
Parts are safety assurance parts.
When replacing those parts, make
sure to use the specified parts.

ABCDEFG
1
2
3
4
5
2-5
MX-K50
SHEET 4/5
CD signal
CD section
To RCW6
SHEET 1/5 (3, A)
SHEET 2/5 (5, D)
Switch boardSensor board

HABC DEFG
1
2
3
4
5
MX-K50MX-K50
2-6
Tuner section
To FCW1
SHEET 1/5 (4, A)
FM/ TUNER signal
AM signal
SHEET 5/5

ABCD E F G
1
2
3
4
5
2-7
MX-K50
Main board
Headphone jack board
Main board
Printed circuit boards
Voice board

HABC DEFG
1
2
3
4
5
2-8
MX-K50 MX-K50
Front board
Front board
Front key board
CD switch board
Mic board