JVC MXGT-91-R Schematic
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MX-GT91R
B
E
EN
MX-GT91R
Area Suffix
U.K.
Continental Europe
Northern Europe
SP-MXGT91R
Contents
Safety precautions
Important for laser products
Preventing static electricity
Disassembly method
Adjustment method
STANDBY/ON
STANDBY
CD-R/RW PLAYBACK
MX-GT91R
CA-MXGT91R
1-2
1-4
1-5
1-6
1-26
PLAY & EXCHANGE
SP-MXGT91R
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1-30
1-31
1-31
1-32
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.20931
Apr. 2001
Block diagram
MX-GT91R
CN215
FMH031-1
CN205
CN207
FMB-028-5
RELAY
RY2
CN217
RELAY
RY1
J81
SPEAKER TERMINAL
FMA-006
5
FM
AM
FM FRONTEND
TU1
MW RF/OSC
COIL
4
M
M
L CAM
R CAM
CN805
CN855
IF
L MOTOR
DRIVER
IC 851
R MOTOR
DRIVER
IC 852
CAM0 3
CAM4 7
3
1SSW 3SSW
1MSW 3MSW
SW1 6
CN804
CN854
RDS
IC3
FM/DET
AM/DET
IC 1
PLL
Synthesizer
IC2
FMN-008
UNIT MICOM
CD CHANGER
CONTROL
IC 251
FMC-022/024-1
CN1
CN11
DIGITAL
OUT
RDS
TUNER
MPX
TX
CN661
CN651
TX
SOURCE SELECTOR
& E.VOL
IC436
CD
CN315
CD OUT
TAPE
KCMND
MSTAT
KCLK
MRDY
SLCKEY
1 2
VOLDA,VOKCK
CN870/CN871
CN860/CN861
MPX
MAIN
MICOM
IC 810
MAIN HPF
MUTE SYSTEM
IC481
INPUT AMP
IC 501
FMB-028-1
HARMONICS
GENERATOR
IC 502
KEY1,11 CD1LED
LPF
IC 526
CD2LED
CD3LED
SEARCH R,F
KEY21,22
FW915
CN911
FW714
FW915
FW901
FMH-031-2
MAIN
POWER AMP
IC602
CN704
SUB WOOFER
POWER AMP
IC 701
FMB-028-3
KEY
LED
FMH-031-3
SEARCH
KNOB
FMB-028-2
MAIN VOL
WOOFER VOL
SOUND MODE
SLCKEY2
PHB
SLCK
PHA
LED
KEY
LED
PB MECHA
PP MECHA
IC332
SW302
SW306
IC331
SOLENOID
SW303
SW304
SW305
SW316
SOLENOID
PICKUP
TRACKING
FOCUS
P001
2
1
FEED
M
SPINDLE
M
PB MECHA HEAD
RP MECHA HEAD
P011
R
L
R
L
A+C
B+D
E F
CN601
FM SM
CN801
RF & SERVO AMP
F
T
FOCUS/SPINDLE/
FEED/TRACKING
BTL DRIVER
IC801
FMP-007-1
CN301CN302
IC601
ARF
HEAD SW
IC301
DIGITAL SERVO
&
PROCESSOR
IC 651
PB/REC AMP
IC302
DRIVER
CN305
FL DISPLAY
CN316
CN306
SERIAL TO P ARALLEL
PORT EXTENSION
IC303
PHOTO A,B
FL 801
VOL
KEY2,3,21,32,41,42
SOLENOID DRIVE FOR RP MECHA
Q3314 Q3315
SOLENOID DRIVE FOR PB MECHA
Q3312 Q3313
SLCKEY1 2
CN880
DRIVER
FW301CN303
CN870
FMP-007-2
M
CN333
ABCD E F G
2-1
Standard schematic diagrams
Power supply section
MX-GT91R
5
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
6A-125V
F102
6A-125V
T001
QQT0320-001
F101
F001
5A-125V
R1001
CN250
QGA7901C1-02
3.3M
SHEET 4/8
SHEET 2/8
4
SHEET 2/8
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
F102
3
4A-250V
F101
4A-250V
T001
QQT0320-003
F001
2A-250V
CN250
QGA7901C1-02
CN220
QGD2504C1-03Z
QJK015-071214
CN214
QGB2510K2-04
CN213
T3.15AL
0.33( 1/2W)
R1002
F102
T3.15AL
2SC2785
R250
3.3k
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
CN214
QJK015-071214
T4AL
F102
T4AL
T001
QQT0320-003
F001
F101
QGA7901F1-03
CN218
T2AL
CN208
WJK0114-001A
CN250
QGA7901C1-02
470/16
0.0047/250
CN209
WJK0070-002A
D252
1N4003
C252
RY3
QSK0094-001
D254
1SS133
T002
QQT0253-002
F001
T2AL
CN250
QGA7901C1-02
T001
QQT0320-002
CN218
C253
0.0047
R253
C250
QGA3901C1-02
3.3k
C251
F101
D251
1SS133
Q250
Q251
2SC2235
D255
D256
MTZJ6.2A
1/8
2/8
3/8
4/8
5/8
CN219
QGA7901C1-04
CN208
WJK0114-001A
CN209
WJK0071-002A
CN208
WJK0114-001A
0.33( 1/2W)
R1002
CN220
QGD2504C1-03Z
QJK015-071214
CN214
F102
T3.15AL
F101
T3.15AL
QGB2510K2-04
F003
T2AL
F001
CN250
T4AL
QGA7901C1-02
CN213
R250
3.3k
2SC2785
Q250
Q251
2SC2235
D255
T001
QQT0320-002
CN218
QGA3901C1-02
D251
1SS133
3.3k
R253
C253
0.0047
C251
D256
MTZJ6.2A
C250
470/16
CN209
WJK0070-002A
D252
1N4003
C252
0.0047/250
RY3
QSK0094-001
D254
1SS133
QQT0253-002
F001
T2AL
CN250
QGA7901C1-02
T002
7/8
8/8
6/8
CN218
QGA7901F1-03
2
CN220
QGD2504C1-03Z
CN214
QJK015-071214
0.33( 1/2W)
R1002
T4AL
T4AL
T001
QQT0320-003
F102
F101
CN218
QGA7901F1-03
1
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
SHEET 1/8
HABC DEFG
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