JVC MF-33L, MF-33ML User Manual

JVC
MODEL
MF-33L/ML
SUN
Taller
eMUSIC-
SYSTEM
No.
7020
1978
MF-33L/ML
Contents
|
Cautions
Specifications... F@aturres:
Name
Disassembly
Record
How How Removal Check Head Cassette
Tuner Block
Circuit
for
eco
of
External
Player
to
Engage
to
Remove
of
Point
Replacement
Deck
Alignment... Diagram
Board
Tuner
Circuit Control Cassette
Amp.
Safety
dese
Instruction
Adjustment
Cassette
After
Circuit
Diagrams
Amp.
Assurance
2...
Parts
Dial
String
Cassette
Mechanism.
Replacement
and
Board
0.0...
....
20...
Board
Circuit
Circuit
at
the
Service
0.0020 c cee
ea
eilee
se
and
Internal
...........
wt
Be a ee
Parts
eee
000. e eee
..........6..058+00-
...........
Door...........200005
.........002005
of
Rotation
Adjustment
Adjustment..........
00.
........
2.0.0... Board
Board
.............
0.
cee
e
eee
0.0
cc
eee
cece
eee
..........2.020000e
............0000005
.......
eee
can
ee
ta
.........
0022
eee
Parts....
ee
ee
ee
renee
nee
eenes
ee
eee
eee
Page
2 3 3
4
5
6
6 7 7 7 8 8
10 12
13 13 14 15
Power
Amp.
Exploded
Exploded Service
Characteristics Transistor Terminal
Schematic
View
View
Parts
List... Circuit Unit:
Record
Cassette Cassette
Board
Parts:
Player
Unit 2 occ Mechanism
and
Voltages
Diagram
Tuner
Circuit...
Control
Cassette
Power
Amplifier...
Circuit...
Source & Amplifier.
Circuit
Board
of
Cassette
of
Record
0...
Parts
..
5.0
scans a eeed
Mechanism
iteseccete Parts.
of
Transistors.
IC
Lead
Identification
of
Transistor
..........
1.2...
.......00000
.....
..........0020005
Mechanism
Player
cc
0... Aeeie
Parts..............-
...........-
Mechanism
te
eee
0.0
cee
eS
et
esiere
........6+0205085
..........2000005
............
&1C
............
002 cee
0002:
..........
.......-
eee ASA
Hie
Se
eee ee
eee
0000005
SS
ene
eee
eee
es
ee
Page
tes
16 17
18 19 19 21
22
22 23
24 24 26
27 27
27
28 28
NOTE: FOR
REPAIR
(No.
7021).
Cautions
Cautions
In
hazard,
1.
2.
3.
for
order
to
please
The
parts
safety
assurance
When
replacing
specified
Although
than
A\
in
this
manual
When
wire
part
after
turns
in
safety
prevent
keep
marked
one.
in
mark,
connection
winding
order
case
to
to
OF
SPEAKER
for
assurance
from
the
following
with
parts.
this
kind
of
replacing
it is
recommended
keep
appliance
the
prevent
BAFFLE
Safety
at
the
service
accidents,
points
A\
in
the
list
of
parts,
make
the
to
safe
is
made,
solder
wire
round
easy
disconnection.
MODEL
Assurance
like
fire
or
shock
for
the
safety.
of
this
manual
sure to
other
use
the
and
reliable. the
the
terminal a few
kind
of
parts
connecting
use
BA-33,
are
the
parts
listed
PLEASE
4.
When schematic
manual.
5.
The please
6.
The
be or
Some circuitry When
7. appliance
its
a
Soldering
at
replacing
The
symbol
use
heat
spaced
another
parts
altered
carton
REFER
the
the
diagrams
marked
mark
the
listed
radiating
enough
electrical
may
has
been
the
sure
make
case.
TO
SERVICE
Service
parts
in
the
circuit
use
only
the
circuit:
ay
OOAW-|
parts.
parts
from
radiate
damaged.
working
(resistor,
printed
parts
to
specify
to
is
showing a fusible
transistor,
circuit
be
free
heat
big
voltage
it
listed
from
when
frequency
or
the
on
MANUAL
marked
parts
resistor,
etc.)
board, its
heat.
transistor
appliance
in
the
in
this
should
plastics
or
the
of
and
atin
No.
7020
Specifications
MF-33L/ML
Cassette Type Track Bias & Erase Frequency Response
Wow Signal
Ratio
Amplifier Type
Music Tuner
Type
Tuning
Antenna
Sensitivity FM
Separation
deck
System
and
to
Noise
Power
Range
Stereo
Flutter
for
FM
: : :-AC
:
:
:
:
:
:
:
:
:4yuV
:
Stereo
Cassette
4-Track,
30—13,000Hz
2-Channel
Bias & AC
30—15,000Hz
0.15%
(WRMS)
Better
than
without
S/N
and noise
IC Treble at 8 ohms 40W
4-Band
Tuner FM MW SW LW FM
40dB
Dolby
ratio
is
10dB
above
reduction
Power
Amplifier
Controls
(FM/MW/SW/LW)
88—108MHz
520—1600kHz
6—18MHz
150—350kHz
300
ohms
(1kHz)
Deck
Stereo
Erase
(Normal
(Chrome
50dB
(at
noise
improved
5kHz
on.
with
15W
balanced
with
Auto-Stop
Tape)
Tape)
Peak
Level)
reduction.
by
5dB
at
with
Dolby
Bass
and
RMS
per
Stereo
The
1kHz
channel
Turntable Type
Speeds Platter
Motor
Cartridge
Stylus General
Power
Sources
JVC
recommends
System
BA-33/33M
your
MF-33L/ML.
with
for
:
Belt-Drive
:
33-1/3,
:
28cm
:
FG
:
Moving
:
Diamond
:
110/120/220/240V, 240V,
a
Passive
matching
Servo
JVC
Radiator
performance
45rpm
(11)
Magnet
50/60Hz
2-way
Auto-Return
Motor
Ajir-Suspension
(Drone
and
50/60Hz
Cone)
appearance
or
Speaker
Model
of
Features
15
WATTS 4-BAND DOLBY AUTO-STOP AUTO-RETURN SPEAKER
RMS
(FM/MW/SW/LW)
NOISE
SELECTOR
PER
REDUCTION
STEREO
BELT-DRIVE
CHANNEL
RECEIVER
CASSETTE
SWITCH
POWER
SYSTEM
DECK
TURNTABLE
(A,
B, A +
OUTPUT
B)
No.
7020
MF-33L/ML
Name
219
17
18
16
of
435
151214
External
6
13
Fig.
1
Parts
10
11
9
and
Internal
Parts
Name
Side
Panel
Cover
Ass‘y
Case
Terminals
Terminals
Socket
Selector
Ass’y
Ass’y
Ass’y
Dust
Hinge Bottom
Speaker
Antenna DIN Voltage
Parts
23
Fig.
2
24
Parts
Refer
to
Parts
Y¥30120-003
*¥10082-001
*QMB0484-002
*QMB0484-001 *Y00122-001
QSR0074-001
No.
List
Page
22
21
1
Front
2
Cassette
3 | Tape
4 | Tape
5
Dolby
6
Level
Lamp 7 | Dial 8 | Dial
Lamp 9 | Tuning
10 | Push
Parts
Panel
Door
Counter
Select
NR
Switch
Meter
(Meter) Scale Needle
(Needle)
Knob
Switch
Name
Ass‘y
Holder
Switch
Knobs
Ass’y
Refer
to
Parts
TGW291324-0A
*QSS4201-051(EQ)
QSS2201-003(BIAS) QSS4201-051
*Y00119-001
QLP4101-004B *¥20075-001 *Y40567-001
Y00124-400 *Y
40560-001
*Y40562-001
“a
List
Page
21
Parts
Spring
(Knob)
Microphone
Control
Knobs
Speaker
Push Headphone Cassette
Cassette Beat Power Cabinet Player
Select
Shaft
Grille
Push
Cut
Switch
Case
Mechanism
Indicator
Tuning Dial Spring Tuner Contro! Cassette
Cassette
Power Power Antenna Power Power
Fuse
Name
Jacks
Knobs
Jack
Ass’y
Buttons
Switch
Knob
a
Parts
Shaft
Drum
(Drum)
Circuit
Circuit
C.
Switch Amp.
Transformer Cord
Ass’y
Name
Ass’y
Board
Board
Mechanism
Board
C.B.
C.B.
C.B.
Ass’y
Ass'y
Ass’y
Ass’y
Ass’y
Ass’y
Ass‘’y
Y40462-001
*Y00127-001
4056
Y40428-001
Y30264-001
QMS6302-015
Refer
to
*QSS2301-005 *¥40490-002
Y10063-001
Refer
to
TLR114
*Y¥KA40065-002
QZD1115-001
Y40276-002 Refer Refer
Refer Refer
Refer
Refer
1-001
Parts
Parts
Parts
to
Parts
to
Parts
to
Parts
to
Parts
to
Parts
to
Parts
List
List
No.
List List List List
List
"
List
Page
Page
Page
Page Page
Page
Page
Page
21
22
|
19 20 23 19
20
21
——
No.
7020
MF-33L/ML
Disassembly
Step
1.
Record Remove 2 screws
2
Step
Cabinet
Remove 4 screws.
plugs
Player
from
3.
Case
with
underside
U
(Step
2.)
motor
of
Instruction
board
player
floated
board.
and
disconnect
Fig.
4
"
Step
2.
Cabinet
Remove 1 screw.
Step Cabinet
Remove
mark 4 on
4.
Case
Case
both
both
(Step
(Step
3.)
sides
sides.
1.)
panels
and
remove 2 screws
of
Fig.
ig.
arrow
8
Step
5.
Cassette @ ©
Mechanism Remove Remove 4 screws
mark
cassette
Jin
Fig.
door
7.
holder.
in
Fig. 8 and
Fig.
6
(Refer
to
remove 1 screw
page
Front
7)
Panel
of
arrow
Step
6.
Circuit Tuner Control
Power
Boards
Remove 5 screws. Take
screws.
Remove (A & B)
off
the
control
screws
and
remove 6 screws.
of
knobs
the
and
speaker
Fig.7
remove
terminals
Fig.
6
9
No.
7020
MF-33L/ML
|
Record
Confirmation
Player
of
Normal
Mechanism
When
you
bring
pickup
(A)
while
keeping
(Arrow
operation
Lead-out After sure
®
B)
by
of
auto
adjustment
replacing
of
normal
Confirmation & Adjustment.
1)
Lead-out
record
RG-652
1f
not,
clockwise.
2)
Lead-out
record
RG-653
If
it
is
made,
Repeat
correct
above
position
the
hand,
return
cartridge
operation
should
(pitch
turn
the
should
(Reverse
turn
1) & 2),
for
normal
if
adjusting
the
Operation
head
part
Lower
pickup
mechanism
or
lead-out
of
lead-out.
be
made
3mm).
not
be
side
adjusting
and
fix
lead-out.
Adjustment
of
Auto
return
to
the
Trip
does
is
mechanism
when
screw
made
of
screw
the
position
Pawl
pushed
not
move
normal.
playing
(Fig.
when
RG-652).
clockwise.
adjusting
of
forward,
(Fig.
10)
Fig.
parts,
JVC
11)
counter-
playing
screw
boss
inward
10
make
test
the
at
the
Speed Adjust
board
45
33
adjustment
two
semi-fixed
for
each
speed.
rpm : (A)
rpm : (B)
in
of
Fig.
Fig.
turntable
resistor
12
11
on
Adjustment
the
motor
Screw
control
circuit
How
to
Engage
Dial
String
1.
Set
the
variable
2.
String
dial
cord
3.
Overall
length
capacitor in
numerical
of
cord
on
is
655cm.
Fig.
13
maximum. order
as
Fig.
shown
12
in
the
arrow
marks.
No.
7020
MF-33L/ML
How
to
Cassette
_
.
Open
the
door
2.
Take
off
the
brake
left-hand
3.
Depress further.
Notice:
1.
Whether
with
2.
Whether
3.
Whether
of
the
the
Check
Point
If
opening
check
the
the
something
grease
“O”
opened
small
Remove
Door
by
depressing
shaft
cassette
door
of
Door
or
closing
following
hole
like
dust.
on
brake
ring
of
the
Holder
“EJECT”
arm
connected
compartment.
toward
Trouble
points.
of
brake
shaft
shaft
you
the
door
pipe
is
running
is
deforming.
knob.
with
the
so
as
to
is
not
(inside)
is
out.
door
at
open
smooth,
choking
it
Removal Mechanism
For
removing
lowing
Mechanism”
(1)
Regarding
the
off
(2)
Regarding
take
(3)
Regarding
“E"'
CAUTION:
1.
As
for
vertically
2.
Be
careful
way
on
belt
off
the
ring
which
rotation
from
not
cassette
referring
page
the
first.
the
spring
the
the
to
parts
parts
other
fixes
parts
shaft.
soi!
of
Cassette
mechanism
to
“Exploded
to
which
to
which
first.
major
the
parts
such
as
belt
or
rubber
parts,
the
the
spring
parts,
to
be
reel
disk
Parts
do
it
View
belt
is
is
remove
removed.
etc.,
in
oil
in
the
of
Cassette
fitted,
hooked
screw
pull
it
etc.
fol-
take
up,
or
out
Check
1.
Pinch
@ @
@
2.
Flywheel
@ A little
@
3.
Take-up
It
If
measures.
1)
2)
3)
Roller
It
must
The
roller
the
finger. The vertical,
bearing
The
capstan
quiet
must
be
torque
Clean
Change
pulley.
Nevertheless, replace
Point
Pressure
be
within
continues
roller
surface
thrust
and
special
is
rotation.
Torque
within
is
out
of
take-up
the
position
(Refer
take-up
380~580
contacting
clearance
washer.
clean,
40~70
the
specified
belt,
surfaces
of
Fig.
to
if
the
standard
clutch
After
g/cm.
to
rotate
exists
correctly
g/cm.
range,
of
the
spring
14)
arm
ass’y.
after
the
capstan
between
centered,
take
idler
and
holder
torque
Replacement
being
rotated
flywheel!
and
the
reel-disc.
in
the
is
not
obtained,
by
must
be
shaft
provides
following
clutch
4.
Fast The
If
the
following
1)
Clean
parts
2)
Change
idler.
3)
Adjust
4)
In
one.
Clutch
of
Forward
standard
case
torque
measures.
take-up
to
which the
(Refer
or
replace
the
pulley
torque
Rotation
and
is
less
belt,
the
position
to
Fig.
the
rubber
Rewind
should
than
belt
14)
parts
Fig.
be
the
rubber
gets
of
the
springs
was
14
Torque
over
specified
part
in
spring
concerned.
worn
Parts
60
g/cm.
of
reel-disc,
contact.
holder
out,
range,
in
replace
F.F.
idler
take
and
the
to
the
all
F.F.
new
Note:
To
adjust
screwdriver
The
torque
the
and
is
the
spring
shift
higher
holder,
to
higher
the
raise
position
stronger.
it
up
by
turning.
with
a
No.
7020
MF-33L/ML
|
Head
If
either
of
tion,
it
should
azimuth
Azimuth
Step
1.
2.
3.
of
Connect
REC/PB
Play
back
Tape
VTT658
Adjust
become When available, Make
.
After with a bond.
If
necessary,
and
trap
Replacement
Recording/PB
be
replaced.
head.
Adjustment
INPUT
socket.
the
10kHz)
screw
Q)
max.
standard
play a music
treble
sound
this
adjustment,
adjust
etc.
jack
standard
so
that
tape
cassette
optimum
playback
head
They
of
V.T.V.M.
tape
for
azimuth
indication
for
azimuth
the
screw
and
Erase
can
(Full
tape.
with
level,
head
be
removed
to
LINE
Track
(angle
of
adjustment
turning
should
recording
and
shows
by
loosening
OUT
or
JVC
adjustment).
V.T.V.M.
is
the
screw
be
locked
bias
current,
Adjustment
low
performance
screws
of
Test
will
not
caused
with
Erase
@ ®
by
wear,
broken
wire
or
excessive
following
procedure.
Yad
Head
After
replacement,
magnetiza-
©
©
=
@
Bae
Fig.
eS
if
15
adjust
Cassette
Item
of
Adjustment
.
Dolby
Noise
Reduction
.
Level
meter
.
Playback
.
Recording
arWN—
.
Recording
Equipment
for
adjustment
VTVM
1.
.
Oscilloscope
.
Oscillator
.
Attenuator
.
Frequency
.
Standard
.
C-60
On
aah
WN
-
100Q
Gain
bias
current
and
(measuring
counter
tape
Normal
sub-standard
Resistor
current
measuring
VTT-664
Deck
Level
AC
in
milivolts)
(1kHz
tape
Circuit
instruments
16mM/mm)
to
be
used
Board
Adjustment
R/P
Head
wo
1002
AC
Fig.
milivoltmeter
16
Frequency
counter
No.
7020
—_
.
DOLBY
1.
Set
SOURCE
2.
Set
DOLBY
3.
Set
the
4.
Apply
proximately)
ol
.
Adjust
level
(L-ch)
17)
6.
Finally
be
-2.5
2.
Adjustment After
adjustment
was
completed,
that
the
17)
3.
Playback
1.
Set
SOURCE
2.
Set
EQUALIZER
3.
Set
DOLBY
4.
Play VR301
meter
4.
Adjustment
1.
Connect a resistor of
R/P
milivoltmeter
(Refer
2.
While
specified
should
Lo
ow
CHROME
NORMAL
3.
Regarding
will
be
set
to
N.R.
deck
1kHz
the
will
be
and
adjust
dBm
of
level
level
the
reference
(L-ch)
will
indicate
of
head
to
Fig.
changing
current
be
made
Place
|
|
bias
obtained
1.
Level
SELECT
N.R.
switch
in
recording signal
to
“AUX”
front
REC
-25
dBm
VR402
meter
VR401
at
the
Level
adjust
SELECT
(R-ch)
Dolby
Meter
of
the
indicates
switch
N.R
switch
tape
and
OVU.
Recording
10082
in
recording
to
the
16)
the
will
from
to
be
VR307
vR308
VR
(L-ch)
(R-ch)
309
(L,R-ch)
frequency,
when
switch
to
“OFF”.
mode.
of
proper
input
VOLUME
at
respectively.
and
402
T.P.
Dolby
VR303
Cal
switch
to
“NORMAL”,
to
“OFF”.
VTT-664,
VR302
bias
and
to
both
bias
switch,
be
obtained.
“CHROME”.
.
adjusted
adjust
the
front
to
“AUX”.
level
terminal.
so
that
the
terminals
(Refer
so
that
the
(L)
and
(R).
Noise
Reduction
(L) & VR304
(+3VU).
to
(Refer
“TAPE”.
(1kHz),
(R-ch)
so
that
frequency
the
earth
side
state,
and
connect
terminals
of
adjust
The
Bias
Current
550uA
(55mV/1002)
400uA
(40mV/1002)
T301
so
BEAT
CUT
(0.5V_
the
signal
of
VR401
to
level
Level
(R)
to
and
adjust
the
level
terminal
the
resistor.
so
that
adjustment
that
57kHz
Switch
ap-
Fig.
will
so
Fig.
AC
the
is
5.
Adjustment
1.
For
angle correctly
2.
Set “NORMAL”,
3.
In
(0.5V adjust meter
4.
In
adjust
level
Tape
speed
Standard
tape)
If
not
as
upside
and
case.
(Fig.
17 * )
es
nf
vraoi@)
of
Recording
this
adjustment,
of
the
level
adjusted
the
equalizer
recording
this
meter
speed:
specified,
adjust a semi-VR
state,
approximately)
the
front
will
indicate
state,
repeating
VR305
indicates
3,000Hz
insert
0)
Fig.
signal it
meter
previously.
switch
apply
to
Recording
OVU.
(L-ch)
and
OVU.
+2%
your
for
oa
VR402
17
current
is
necessary
and
playback
and
1kHz
signal
“AUX”
the
(at
driver
speed
input
volume
recording
VR306
playing a 3,000Hz
in
hole
control
(s)
that
sensitivity
bias
switch
of
proper
terminal,
so
that
and
(R-ch)
on
the
in
the
MF-33L/ML
the
swing
are
to
level
and
the
level
playback,
until
the
test
motor motor
No.
7020
MF-33L/ML
|
Tuner
AM
IF & RF
Alignment
IF
@
Equipment
terminal
Input
Output
@
RF Equipment
Output
Po4
Alignment
Input
terminal
terminal
terminal
|
aa
Alignment
ALIGNMENT
455kHz
required
required : Standard
mw
(IF)
:
Ain
:
:
Bin
Modulation
:
Loop AM
:
Speaker
Adjust
Repeat
Sweep
20
Fig.
Fig.
20
Signal
Antenna
antenna
terminal
455kHz
CF
103,
the
step 3 & 4 to
6MHz
Generator
Generator
1000Hz,
for
terminal
T103
LW
30%
and
for
get
with
MW
SW
the
best
Oscilloscope
Alignment
CF
point
of
point
103,
T103
Fig.
18
adjustment.
L111
x
~10kHz 0 10kHz
1
mas
te
}
18
Fig.
Set
|
y,
x
V.
Capacitor
Center
6MHz
to
=
=<
NOTE:
When
bar slightly Always
Repeat
Repeat
Repeat
Repeat
Repeat
antenna interfere use
an
insulated
coil
each
the
the
the
the
the
other.
step 6 & 7 to
510kHz
1650kHz
step 9 &
1400kHz
step
12 & 13
360kHz
step
15 & 16
160kHz
350kHz
step
18 & 19
of
MW
or
LW
screw
driver
10
to
is
for
get
to
to
to
adjusted,
the
best
get
the
best
get
the
best
get
the
best
get
the
best
check
adjustment.
point
point
point
point
L112
point
the
of
sensitivity.
of
adjustment.
C184
of
sensitivity.
C199
of
adjustment.
(LW
Bar
C181
of
sensitivity.
tracking
ANT.)
error
for
each
band,
Maximum Minimum
1400kHz
because
160kHz
350kHz
two
coils
No.
7020
Fig.
—10-
nen,
19
FM
IF
and
Equipment
Input
terminal
Output
Adjust
at
discriminator
required
terminal
T101
and
T102
alignment
:
10.7MHz
Oscilloscope
:
Cin
:
Din
as
shown
Fig.
Fig.
in
Sweep
20
20
Fig.
I
Generator
19
nput
ignal
Signa
with
FM
RF
alignment
Equipment
Input
terminal
Output
terminal
required
Place
to
be
aligned
:
Standard Modulation
40kHz/Div)
(MAIN
8kHz/Div)
Output
:
Refer
:
Speaker
Signal
monaural
stereo
40kHz/Div,
impedance
to
the
following
terminal
Set
V.
Capacitor
|
Generator
300
MF-33L/ML
(1000Hz
PILOT
ohms
table.
to
PLL
MPX
VFO
alignment
Connect a frequency VR183
Note:
until
1.
Set
2.
Give ANT
76kHz
the
MUT/MODE monorual terminal.
counter
is
obtained.
non-moduration
87.5MHz
Repeat
Repeat
to E in
switch
the
Step 1 & 2 to
the
Step 4 & 5 to
Fig.
20
to
stereo
signal
FM
FM
terminal
and
adjust
position.
of
antenna
get
the
antenna
get
the
the
1mV
to
best
point
best
point
Separation
Adjust will
of
adjustment.
of
adjustment.
the
be
maximum.
L104
L101,
L102
C102,
C105
alignment
VR197
so
that
left
|
and
Maximum
88MHz
108MHz
right
channel
Signal
Signal
separation
AUTO
MUT
STEREO
Fig.
-11—
20
No.
7020
0202
*ON
Sy
300
AM ANT
ae
:
EXT
©
ANT
ut
COIL
sw ANT
RF
AMP
X10!
Mw
\
'
:
G
com},
ce
RF
Loz
Li04
OSC
Kose
COIL
COIL
x105
MIX
MIX
x102-TIOI
XI03
OSC
> =
x106
Ist
IFT
cFIO3
Ao
eS
:
¢
IF
AMP
x104
colo
Se
ete
=
AM
eaelie
een
TIO3
AM
is
DIOS DIO6 METER
siba
icy
eS
or
08
?
METER
Ck)
SOURCE SOURCE
RALIG
[MIC _ |
[AUX
vow
}
i
rape
IC5OI
PRI
|
one
AMP
eT
ay,
$501
BALANCE
VOLUME
pi
REC
LEVEL
VR503,
504
$50!
SOURCE
TONE
AMP
X501,502
TONE
BASS.
:
METER
TRE
SPEAKER
TW/TEe-4W
weibeig
490/g
Lz
‘big
Sw
OSC
COIL
POWER
SW
{
}
ee
METER
LUMP.
NEEDLE
LUMP.
MW
coll
POWER
D2~DI7 x1
201
S
OSC
LW
COIL
SUPPLY
|
CASS
MOTOR
3
OSC
HEAD
PHONO
MOTOR
$301I-1
$
301-2
GAIN
P.B
Toe
P.B
AMP
X301 R202
teas
=
NORMAL
¥
Ee
X303
NSCS
$301-6
SBOILe
SA/CrOe
Ll
TARE
my
viaoe
SeLeer
DOLE.
OFF.
ie
Ne
pON
1C
401,402
DOLBY
ae
x
FILTER
=]
NR
3301-10
vaso
REC LEVEL
Adj.
METER
Adj.
VR303,304
id
REC
x308
METER
AMP
X305,506
D30-304
AMP
|
SA/CrOz
a
:
WORM
|
S301-2}
ladj.
SBAS
+B
SA/CrO2
s301-3
ORMA
adj.
BIAS
e
saee
__
sw
,,
NORMAL
x309
osc
m
AD
.
HEAD
MF-33L/ML
Circuit
Tuner
Circuit
Board
Board
Diagrams
Note: @ Indicated
©
The
part
voltages
indicated
are
with
a
measured
Hm
ee
with a 20kQ2/V
is
of
+B
voltage.
tester.
;
Fig.
22
No.
7020
MF-33L/ML
Control
Amp.
Circuit
Board
at, 3 a
i
fe
a
f Pee
eee
§
ee
st
tM
en
eA
By
A
No.
7020
Note: @ Indicated
@
The
voltages
part
indicated
are
measured
with
HARMaam
—-14—
with a 20k(2/V
is
of
+B
voltage.
tester.
;
Fig.
oti
23
MF-33L/ML
Cassette
Amp.
Circuit
Board
ttn
tom
~15—
No.
7020
MF-33L/ML
Power
Amp.
Circuit
Board
baat,
No.
7020
Note: © Indicated
@
The
part
voltages
indicated
are
with
=e
measured
Ham
with a 20k(Q2/V
is
of
+B
voltage.
tester.
Fig.
25
MF-33L/ML
Exploded
View
of
Cassette
Mechanism
Fig.
26
No.
7020
Exploded
View
of
Record
Player
|
MF-33L/ML
Mechanism
:
51
50
49
No.
7020
Fig.
24a
27
|
MF-33L/ML
Service
Circuit
Board
a
Tuner
Section
C101
1C102 X101 X102,105 X103 X104,106
Vvc101
R169,170 R120 R119,175 R180
C102,105
C181,183,184
197,198,199 C112 C119 C210 C227
CF101,102 CF103
L101 L102 L104 L103,105 L106 L113,114 L115 L108
L109 L110 L111 L112 LFP101,102
D101,102,103
106,107,108
D104,105 T101 T102 T103 VR183 VR197 $101~105
Cassette
C305,306 C321,339,357
T301 D301~304
Secticn
X301,302
X303,304 X305,306
307,308
X309
L301,302 L303,304 1305
R375,376
Parts
Parts
*HA11211 *HA1196 *2SK49H
*2SC1342C
*QAP2230-001
*QAT2001-004
*QAT3001-101
*Y00110-001 *Y00111-001 *Y00112-001 *Y00118-2R2 *Y00118-180 *Y00118-333
*Y00114-001 *Y00116-001
*Y00113-001 *Y00115-001 *Y00117-001
*QVP4A0B-205 *QSP0250-009
List
Note:
The
The
2SC535C
2SC461C
QRGO019J-821
"
-471
"
-561
QRGO16J-222
QEW61CA-107 QEW61EA-107
QEW41CA-107 SFE10.7MS3 Y00096-001
YQV30105-101 TBC298403-01M
E03079-13M
tt.
-18M
Y00083-001
1$2075K
1S188FM
QVP4A0B-103
2SA872E
28C1345E 2SC458D
2SD467C QEW61CA-107 QEW61EA-107 TAC000324-02
Y40508-001
1S188FM QRGO016J-222
-05
-03
mark * means
mark
4\
means
SW
SW
Si
Ge FM FM AM V.
Push
Si
E.
Inductor
Osc. Ge.
OMF
new
parts.
This
is
common
safety
assurance
1.C.
F.E.T. Si.
Transistor
"
Variable
OMF
Trimmer
E.
Ceramic
Filter
FM FM FM
Inductor
MW LW
Bar Filter
Capacitor
Resistor "
Capacitor
Capacitor
Filter
Ant.
Coil
RF
Coil
Osc.
Coil
"
Osc.
Coil
Osc.
Coil
Osc.
Coil
Ant.
Coil
Ant.
Coil
Diode
Diode
IF
Transformer
Det.
Coil
IFT
Resistor
"
Switch
Transistor
"
Capacitor
Coil
Diode
Resistor
parts.
to
Please
all
use
the
for for
1W
100uF 100uF 100uF
for
2.2uH 18uH
33mH
10kQ 2MQ. for
lists
in
the
specified
FM, MPX
"
"
AM
for
for
BAND
this
manual.
one
AM
IF
16V 25V 16V
IFT
76kHz
Separation
SELECT,
when
FM
repairing.
MUTE
—19—
No.
7020
MF-33L/ML
Parts
Name
Description
R379
R380
VR301,302
VR303,304 VR305,306 VR307,308 VR309
Dolby
1C401,402
VR401,402
Control
IC
501
X501,502
C521 C522 R525 R526
VR501
VR503,504
VR505
VR507
$501
Power
1C1,2
X1 C9,10 C21,22 C27,41,42 C40 D2~D17 ZD1
R15,16,22
R17,18
R20,21
R23,24
Power
C1,C2
Antenna
X201
NR
Section
Amp
Amp
Switch
Section
Section
Section
Section
QRGO019J-470
QRG029J-331
OQVP3A0B-052A
-054A
7
-024A
My *QVP3A0B-025A *QVZ3110-005 *QSS201-104
Y30221-003
-008
NE545B QEW61CA-227 QEW61EA-107
KM10D-19B
-85B
OAQ91 QRGO026J-181
*QVP3A0B-024A
*HA1452W
2SC1345E
QEW41VA-477 QEW61EA-107 QRG029J-821
-
QRGO019J-471
*QVZ1709-001
*OQVG5A2A-054V
*OVG5A2W-515V
*QVZ1709-002
*QSRO0090-001
Y30221-003
"005 " -006 "009
*HA1350
*9SC1061C
*QEW61CA-477SV
QEW41EA-477S QEW71VH-228M QEW41CA-108S
10E1-B
*RD22E(C)
QRZ0044-470
-100
QRZ0045-100
QRGO19J-151
QSP0228-001 YMG30042-001 YMG30042-002 Y30221-003
n
-006
QSP2111-011 QF
Z9006-223
2SC461C
Resistor
OMF
"
Resistor
V.
Slide
Switch
Ass’y
Plug
"
1.C.
E.
Capacitor
Filter
"
Ge.
Diode
OMF
Resistor
V.
Resistor
1.C.
Si.
Transistor
E.
Capacitor
OMF
Resistor
"
V.
Resistor
"
"
Rotary
Plug
a ,
ue
1.C.
Si.
Transistor
E.
Capacitor
i 7
Diode
Ze.
Diode
Fusible
" "
OMF
Resistor
Push
Switch
Fuse
Holder
Fuse
Holder
Plug
(3P)
Piug
(6P)
Push
Switch
M.P.
Capacitor
Si.
Transistor
Switch
Resistor
1W
2W
1kQ
470uF
100uF
2W
1W
for
Volume
for
Level
for
Balance
for
Tone
for
Souce
To
Meter
To
Cassette,
To
Tuner
To
Cassette
470uF
"
2200uF
1000uF
AN
AN Z\
1W
for
Speaker
for
Lamp
for
Main
for
Cassette
35V 25V
Tuner
16V 25V 35V 16V
Meter,
Needle
Motor
No.
7020
NOTICE:
The
parts
In
case
Diagram
in
if
in
above
the
page
list
are
parts
13 ~ 16
recommendable
not
listed
when
you
is
needed,
order.
to
keep
please
Joye
in
stock
write
as
the
spare
symbol
parts.
No.
in
the
order
form
referring
to
Unit
Parts
Parts
Name
MF-33L/ML
Description
External
Front
Dust
Cover
Side
Panels
Cassette
Cassette
Cassette
Internal
Power
Power
Fuse
Parts
Panel
Ass‘y
Ass’y
Ass‘y
Door
Holder
Grille
Ass’y
Push
Buttons
Parts
Transformer
Cord
Ass’y
*Y10081-001 *¥20068-001 *¥10083-001 *Y20069-001
*Y40554-001
Y
10065-003
TFB291455-01
SDSP4008RS
Y20058-001 Y20042-001
WNS4O00N
SDSP4008RS
Ass‘y
*Y40563-001 *Y40564-001 *Y40565-001 *V40577-001
Q03093-601
*Y30254-001 *Y40566-001
*TJK338301-05 i
"
-06
*
"
-07
*Y00120-001 *¥00120-002
QMP3900-244
*QMP9017-010
QHS3876-252
QMF51A2-R50L
"
-R80L
"
-2R5L
Front
Panel
Window
Front
Plate
Fitting
Switch
Dust
Lock
Plate
Cover
Plate
Screw
Panel
(Wood)
Panel
(Mold)
Washer
Screw
Holder
Ass’y
Holder
Socket Washer
Lid
Plate
Cover
Head
(Plastic)
Grille Plate
Knob
P.
Transformer
"
P.
Cord
"
Strain
Relief
Fuse
uf
is
Screen
Screw
for
for
for for for
for Z\
for
Z\ Z\.
Z\
AN
A\
Control
Beat
Cut
FF,
REW,
REC
STOP
33L/ML
for
33L(E)
33L/ML
for
33L(E)
for
33L/ML/L(E)
for
33L/ML/L(E)
PLAY,
PAUSE
—21—
No.
7020
MF-33L/ML
Record
eee
NOTICE:
Player
[
The
In Exploded
Mechanism
towne
Parts
[tame
E49873-002
Y30186-002 G41505-1
E49657-002
QSM1V01-018
E49595-003 E21656-001
Y40405-001
MHX-5P2RDA
*Y40608-001
*Y¥40581-001
*MP-190S
Y00065-002 *Y40590-001 *Y40607-001 *¥30273-001
Y30185-002
Y¥40444-001
MD1032
DT-36
parts
in
above
list
are
case
if
the
parts
not
View
of
Record
Ball
Holder
Arm
Lever
Steel
Ball
Switch
Micro
Elevator Gear
Switch
Motor
Switch
Sub
Ass‘y
Lifter
Lever
Lever
Cam
Elevator
Pick
up
Ass’y
Snap
Switch
Knob
Ass’y
Arm
Rest Belt Turntable
T.T.
Covering
Cartridge
Stylus
recomendable
listed
is
needed,
Player
Mechanism
Ass’y
Cam
Ass’y
Arm
Ass‘y
to
Ass’y
Ass’y
keep
please
in
in
page
stock
write
18
as
the
when
spare
drawing
you
parts.
order.
No.
in
the
order
form
referring
to
Cassette
NOTICE:
Unit
The
parts
In
case
Exploded
Parts
No.
*Y40493-001 *YWS30001-004 *YWS30001-008
YXF40018-001
Y40580-001
TER267508-02 Y40502-001
Y00084-001 Y40497-001
YWS30001-005 Y40495-001
Y30229-002
*Y40572-001
in
above
list
if
the
parts
not
View
of
Cassette
are
recomendable
listed
Mechanism
Rec. Spring Tension
Brake
Brake
“O"
Holder
Muting
Kick Spring
Eject
Spring
Pulley
is
needed,
Arm
Ring
Arm
to
in
Spring
Pipe
Shaft
Spring
Switch
Arm
keep
please
page
Ass’y
Ass’y
in
17
stock
write
when
as
you
spare
the
drawing
order.
parts.
No.
for for
for
for
for
in
Rec. REC/PB
Brake
Kick
Eject
the
Arm
Switch
Shaft
Arm
Arm
order
form
referring
to
No.
7020
tee
MF-33L/ML
Cassette
a
Mechanism
11090102T 11010281ZT
10630410T 020404T Y00080-001
Y00081-001
480408T
4080413T
9700405T
5420408T
7150781T
6680501T
5720695ZT 040508T
4080901T
4080902T
4080903T
116402812T
4081801T
2680503T
2680515T
1320303T 12790301T
10501201T 581011T 581006T 10451202T
9731202T
EG-510AD-TZ
TGW291324-0A
10382102T
10780602T
97307912ZT 2380406T
11640301T
66808ZT
581316T
4080804T 4080810T 4080815T 4080810T
9701081ZT 2110902T
0209058T 4081405 4081407T 40815812ZT
4081510T 4081503T
5421881ZT 5421801T
5421803T
10451101T
4081103T
3690701T 8780902T
Parts
Pack
Spring
Head
Panel
Head
Panel
Steel
Ball
R/P
Head
Erase
Head
Head
Spring
Head
Panel
Review/Cue
Play
Slide
Pinch
Roller
Pinch
Roller
Reel
Disk
Back
Tension
Brake
Arm
Brake
Arm
Brake
Arm
Push
Button
Leaf
Switch Record Stopper
Record Record Motor
Safety
Safety Slide
Bracket Rubber Motor
Rubber Main
Belt
Motor
Pulley
Motor
Counter Counter
Counter Clutch Clutch Muting
FF
Center
FF FF Rewind Rewind
RWD RWD
RWD
Auto Auto Slide
Slide Arm
Pause Pause
Pause
Flywheel Flywheel
Flywheel
LE
Belt
Belt Arm Arm
Arm
Idler
Arm Spring
Actuator Actuator
Actuator Actuator
Idler Idler
Idler Lever Lever
Lever
Lever
Lever
Slide
Lever
Lever
Capstan
Holder
Block
Spring
Ass’y
Hold
Spring
Spring
Lever
Ass’y
Spring
Ass’y
Spring
Spring
Actuator
Ass’y
Lever
Lever
Lever
A
B Ass’y Spring
Ass’y
Plate Spring
Arm
Ass’y
Arm
Spring
Spring
Ass’y
Spring
Lever
Spring
Spring
Spring
Ass’y
NOTICE:
The
parts
In
case
Exploded
in
if
View
above
the
list parts of
Cassette
are
recomendable
not
listed
Mechanism
is
needed,
in
to
page
keep
please
17
23
in
stock
write
when
as
the
you
spare
drawing
order.
parts.
No.
in
the
order
form
referring
to
No.
7020
MF-33L/ML
Characteristics
Symbol
X102,105
X103 X104,106,201 X301,302 X303,304,501,502 X305,306,307,308 X309
Transistor
No.
|
and
of
Transistors
Transistor
No.
2SC1061C
2SC535C
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