JVC RC-636L User manual
MODEL
RC-636L/LB
FM-SW-MW-LW
4-BAND
RADIO
STEREO
CASSETTE
RECORDER
No.
1372
July
1978
RC-636L/LB
Contents
Page
SpecihiCations:
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3
Disassembly
&
Replacement
...
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3
Tuner
Alignment
=:
2.
sinccs
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cde
secs
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Gna
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s!
wo
HR
SSG
caval
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Tele
BS
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Se
45
Adjusting
Recording
Bias
.... 0...
0.
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nett
ees
8
Adjusting
Head
Azimuth...
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6
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Ce
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Pen
8
How
to.
Fit:
Dial
Gord:
2.2
foe
akc
eteee
CE
oe
0
ee
Weare
re
eb
Rew
Selo
Baad
BER
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eneene
Conant
es
9
Adjustment
of
Cassette
Mechanism
.........0
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10,11
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12
Wiring
Connections
6.o.6c3.6
occ
bee
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DE
OE
WR
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Hew
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13
Schematic
Diagram
of
RC-636L/LB
(Tuner)
.......
2-0-0
cece
ee
ee
ee
tee
eens
14
Schematic
Diagram
of
RC-636L/LB
(Amplifier)...
2.0...
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ees
15
Tuner
Circuit
Board
Ass’y
1.2...
0...
ee
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ees
16,17
Amplifier
Circuit
Board
Ass’y
..
0.0.0...
--
cece
ee
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eee
tee
eee
ees
18,19
Exploded
View
of
Cassette
Mechanism
.......-.
20
0c
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nee
tee
ete
20
List
of
Cassette
Mechanism
........
00.
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21
Control
Circuit
Board
Ass’y
..
2.2...
eee
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22
Power
Supply
Circuit
Board
Ass’y
(RC-636L)
........
0.
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ee
ee
ee
ee
eee
22
Exploded
View
of
Chassis
Ass’y
..........---
seh
dole
coord
sasaice
Wein:
apa
ate
an
coher
eyise
sheen
ine
padre
ae
a
aero
23,24,25
Exploded
View
of
Front
Cabinet...
2...
2.
ce
ec
ee
ee
ete
es
26,27
Exploded
View
of
Rear
Cabinet
(RC-636L)
..
0.2.2...
ce
eee
tet
28
Final
Packing
Ass’y
(RC-G36L)
2.0.0...
.
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29
Accessories
(RC-636L)..
0...
ccc
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29
Difference
of
Model
RC-636LB
........
0.0...
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ees
29
Wiring
Connection
of
RC-63GLB
(Part)
2.2...
0c.
eee
ee
eee
teenies
29
Power
Supply
Circuit
Board
Ass’y
(RC-G36LB)
2.2...
ee
ees
30
Exploded
View
of
Rear
Cabinet
(RC-636LB)
...
20...
00
ccc
cece
ee
ee
ee
eee
eee
30
Final
Packing
Ass’y
(RC-636LB)
...
0.0.0.0...
cece
ee
eee
eee
eee
31
Accessories
(RC-G3GLB)
cies
sie
ae
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See
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31
Specifications
DIMENSIONS:
26.4cm(H)
x
47.0cm(W)
x
12.3cm(D)
WEIGHT:
Approx.
6.0kg
(with
batteries)
10-3/8"
x
18-1/2”
x
4-7/8"
13.2
Ibs.
Frequency
Ranges
>:
FM
88~108MHz
AMPLIFIER
SECTION
SW
6~18MHz
Speakers
16cm(6-1/2’")
x
2,40
MW
540~1600kHz
Power
Output
Max.
9
(4.5
+
4.5)
W
(DC)
LW
150~350kHz
Input
Jacks
MIC
x
2
(0.8mV,
low
imp.)
Intermediate
Frequencies
:
FM
10.7MHz
Output
Jacks
Ext.
Speaker
x
2
(402)
SW/MW/LW
455kHz
Headphones
x
1
(822)
RECORDER
SECTION
Tape
Speed
Track
System
Recording
System
Erasing
System
S/N
Ratio
Fast
Forward
Time
Rewinding
Time
Wow
&
Flutter
No.
1372
Input/Output
Jack
>:
DIN
POWER
CONSUMPTION
:
15W
(at
RMS
power
output:
636L
seams
Haye)
14W
(at
10%
THD:
636LB)
4-track
2-channel
stereo
re
SEMICONDUCTORS
=
AC
Erasing
Transistors
:
19
More
than
45dB
at
1kHz
Biodas
:
18
Within
90
sec.
(C-60
cassette)
BoweR
SOURCE
Within
90
sec.
(C-60
cassette)
pe
:
12V.8
"R20"
or
“U2”
cells
or
0.14%
(WRMS)
equivalent
AC
110/220/240V,
50/60Hz
Fuse
1AT
ray
RC-636L/LB
Main
Parts
Location
5G)
VY
Fig.
1
Fig.
2
Parts
No.
Parts
Name
Description
VXQ4001-001
Knob
(Lever)
Rec
Mute,
Mode,
Function,
Tape
VXS4005-001
(Slide)
Volume
(L,R),
Tone
VXKM520-30011
Fine
Tuning
*VXL4021-002
Tuning
*VXQ3007-002
(Lever)
STOP/EJECT
*¥X03007-001
)
RECORD
*V¥XQ3007-003
REVIEW,
PLAY,
CUE,
PAUSE
*VJT3019-00A
Cassette
Door
*VJD3118-002
Head
Cover
*VYH1107-001
Chassis
2
Circuit
Board
Ass’y
Tuner
Control
Amplifier
COON
OORWNH
=
——_-
Cassette
Mechanism
Ass’y
*EAS16P127SC
Speaker
16cm(6-1/2"),
42
*VDM5043-002-004
Connector
&
Wire
Ass‘y
CN404S
for
Fine
Tuning
*VDM5043-003-001
CN401S
for
Tuner
*VDM5043-002-002
CN402S
for
Speakers
Note:
1,
Asterisked
parts
(*)
show
“NEW
PARTS”.
Other
parts
are
all
“CURRENT
PARTS”;
therefore,
check
your
inventory
and
order
situation
before
placing
new
order
to
avoid
making
extra
stock.
2.
The
circuit
board
assemblies
and
whole
assembly
of
cassette
mechanism
in
this
model
will
not
be
available
as
spare
parts.
3.
The
parts
marked
/\
are
the
important
parts
for
safety
assurance.
Use
the
specified
part,
when
replacing
the
safety
assurance
part,
never
use
an
equivalent
one.
Sa:
No.
1372
RC
636L/LB
Disassembly
&
Replacement
A.
Head
Cover
Draw
the
right
or
left
lower
ridge
of
the
head
cover
by
a
finger
tip.
Note:
The
head
azimuth
can
be
adjusted
by
removing
the
head
cover.
Fig.
5
Sn
aE
eases
nn
D.
Amplifier
&
Control
Circuit
Boards
1.
Take
off
the
tone
and
volume
control
knobs.
Fig.
3
2.
Disconnect
2
connectors
(B)
&
(E).
3.
Release
the
wires
by
straightening
the
wire
clamp
(D).
4.
Remove
7
screws
(11)~(17):
SBSB3014Z.
5.
N
B.
Rear
Cabinet
Pull
up
the
circuit
board
straightly
from
the
cabinet.
1.
Remove
7
screws
(1)~(3):
SDBP3012RS
and
(4)~(7):
ote:
1.
Engage
the
projection
of
function
switch
lever
V43899-1.
and
the
slider
(F)
in
place,
when
mounting
the
2.
Disconnect
3
connectors
from
rod
antenna
and
power
circuit
board
on
the
chassis.
supply
section.
2.
When
separating
the
control
circuit
board
from
the
amplifier
circuit
board,
remove
2
screws
on
the
control
circuit
board.
Fig.
4
Fig.
6
C.
Tuner
Circuit
Board
1.
Set
the
tuning
dial
to
the
minimum
frequency.
2.
Disconnect
2
connectors
from
the
fine
tuning
section
(A)
and
from
the
amplifier
circuit
board
(B).
3.
Remove
3
screws
(8)~(10):
SBSB3010Z.
4.
Draw
the
circuit
board
downward
with
slightly
lifting
its
lower
edge
upwards.
Note:
Fit
the
arm
of
variable
capacitor
and
the
dial
drum
when
mounting
the
circuit
board
on
the
chassis.
For
details
refer
to
page
9.
No.
1372
Avaes
RC-636L/LB
E.
LED
Circuit
Board
Press
2
projections
of
chassis
to
the
arrow
direction
as
shown
in
Fig.
7,
after
removing
the
tuner
circuit
board.
Fig.
7
.
Fig.
9
F.
Chassis
Assembly
1.
Take
off
the
tone,
volume,
fine
tuning
and
tuning
knobs.
:
2.
Disconnect
the
connector
(E).
H.
Power
Supply
Section
3.
Press
the
STOP/EJECT
button
to
disengaging
the
Remove
2
screws
(30)
&
(31):
SBSB4020C.
internal
cassette
door
opening
mechanism.
4.
Remove
7
screws
(18)~(22):
SBSB3014C
and
(23)
&
(24):
SBSB3025C.
Fig.
10
1.
Parts
of
Cassette
Mechanism
The
mechanism
of
RC-636
is
essentially
the
same
as
of
RC-525
or
RC-323.
Refer
to
the
service
manual
of
RC-525
or
RC-323.
Fig.
8
G.
Cassette
Mechanism
Assembly
1.
Take
the
chassis
assembly
out
of
the
cabinet
as
following
the
previous
item
F.
2.
Remove
5
screws
(25)~(29):
SBSB3010Z
and
the
screw
(15)
as
shown
in
Fig.
6.
_5_
No.
1372
RC-636L/LB
|
Tuner
Alignment
Output
Measuring:
Speaker
terminal
(Impedance
=42),
output
level
5|OmW
(0.45V/40}
AM
IF
&
RF
Alignment
Input
(SSG)
Modulation
400Hz,
Modulated
to
30%
Input
Signal
Place
to
be
Set
the
V.
Given
to
aligned
Capacitor
to
Repeat
the
Step
1,
and
adjust
for
no
further
improvement.
Loop
Antenna
—
105
Frequency
Band
Repeat
the
Steps
9
&
10.
600kHz
rere
600kHz
Signal
1400kHz
sci
paaieatey
TC6
1400kHz
Signal
Repeat
the
Steps
12
&
13,
and
adjust
for
no
further
improvement.
|
__Dummy
Antenne
TB
Repeat
the
Steps
15
&
16.
6.0MHz
Rod
Antenna
through
6.0MHz
Signal
18.0MHz
Dummy
Antenna
TC3
18.0MHz
Signal
Repeat
the
Steps
18
&
19,
and
adjust
for
no
further
improvement.
FM
IF
&
Discriminator
Alignment
1.
Connect
a
sweep
generator
to
the
test
point
TP4.
2.
Connect
a
oscilloscope
across
the
test
points
TP6
(Hot)
and
TP9.
3.
Align
the
T3
so
that
the
S-curve
will
become
symmetrical
and
the
noise
become
minimum.
Note:
1.
Align
after
mounting
the
tuner
circuit
board
in
the
cabinet
to
avoid
affection
of
leakage
flux
of
the
speaker.
2.
After
alignment,
demagnetize
the
coils
L10
and
T3
by
a
head
demagnetizer
to
decrease
possible
modulation
hum
due
to
leakage
flux
of
the
speaker.
FM
RF
Alignment
Input
(SSG):
Use
75Q
terminal,
modulation
400Hz
modulated
to
22.5kHz
deviation.
Connect
Hot
side
to
TP1
and
Cold
side
to
TP2.
Place
to
be
Set
the
V.
Frequency
aligned
Capacitor
to
109MH2
F
Frequency
M
Repeat
the
Steps
1
&
2.
SOF
nal
TP1
&
TP2
9OMHz
ious
106MHz
106MHz
Signal
Repeat
the
Steps
4
&
5,
and
adjust
for
no
further
improvement.
RC-636L/LB
FM
MPX
Alignment
Dummy
Antenna
A.
Regular
Method
1.
Connect
a
frequency
counter
to
the
test
point
TP8
through
50kQ.
2.
Ground
the
test
point
TP5.
o
3.
Adjust
the
variable
resistor
VR1
so
that
the
frequency
R
1
R
-,
GC
|
becomes
19kHz
+
100Hz.
1
|
B.
Simplified
Method
1.
Tune
to
a
FM
stereo
broadcast.
'
|
2.
Set
the
variable
resistor
VR1
to
a
center
position
of
the
—d
range
where
the
stereo
indicator
keeps
lighting.
™m
Mi
Bie
pa
ee
te
Beh
A
|
R1+R2=
8002
C
=
10pF
R1
:
Output
impedance
of
S.S.G.
Fig.
11
Parts
Arrangement
for
Alignment
=o
No.
1372
RC-636L/LB
Adjusting
Recording
Bias
Bias
Frequency
Bias
Current
1.
Connect
a
frequency
counter
across
TP201
(Hot)
and
1.
Connect
a
V.T.V.M.
across
TP201
—
TP202
and
TP301
TP202
(Cold).
—
TP302.
2.
Set
the
BEAT
CUT
switch
to
lower
position.
2.
Adjust
the
variable
resistor
VR203
(L)
and
VR303
(R)
3.
Adjust
the
oscillator
coil
L402
so
that
the
counter
indicates
68kHz.
so
that
the
voltage
becomes
4.5mV
(450uA/10Q).
Fig.
13
Adjusting
Head
Azimuth
.
Connect
a
V.T.V.M.
across
the
speaker
terminal.
.
Set
the
MODE
switch
to
MONO.
.
Playback
the
test
cassette
for
azimuth
adjustment.
.
Adjust
the
head
angle
for
maximum
output.
Note:
The
output
voltage
shows
three
peaks
while
adjusting
head
angle
as
illustrated
on
the
right,
adjust
for
maximum
peak.
5.
Check
that
the
output
difference
between
MONO
and
STEREO
is
within
3dB.
PWN
=
No.
1372
Output
—pe
Angie
Fig.
14
RC-636L/LB
How
to
Fit
Dial
Cord
1.
Dial
Cord
Material:
Tetoron
(braided
sheath)
and
Kevlar
(inside
filament),
coated
with
Teflon
Diameter
of
cord:
0.5mm
(20
mil)
Whole
length
of
cord:
1300mm
(51-3/16”)
2.
Remove
the
dial
scale
by
loosening
2
screws.
3.
Turn
the
dial
drum
fully
counterclockwise.
4,
Fit
the
cord
in
numerical
order
as
shown
in
Fig.
15.
5.
If
the
tuner
circuit
board
has
been
removed
from
the
chassis,
engage
the
projection
of
arm
which
is
mounted
on
the
shaft
of
variable
capacitor
with
the
slot
of
lever
which
is
positioned
opposite
side
of
dial
drum
as
shown
in
Fig.
16.
‘<
a
Fig.
15
Dial
Drum
Chassis
“TITTLE
cK
tH,
Lever
—,_
Arm
Circuit
Board
i
Variable
Capacitor
| |
Fig.
16
No.
1372
RC-636L/LB
Adjustment
of
Cassette
Mechanism
Play
Timing
1.
2.
No.
1372
In
the
playback
mode,
the
clearance
(A)
between
the
pinch
roller
arm
and
the
stopper
of
head
base
should
be
within
0.2
to
0.3
mm.
If
the
clearance
is
beyond
the
limits,
bend
the
part
(B)
of
pinch
roller
arm
to
adjust
the
clearance
as
shown
in
Fig.
17.
Pinch
Roller
Arm
Stopper
(Head
Base)
Fig.
17
Check
to
see
that
the
take-up
idler
turns
at
the
same
time
as
the
pinch
roller
or
the
take-up
idler
turns
first
and
then
the
pinch
roller
turns,
when
the
PLAY
button
is
pressed.
a.
If
the
pinch
roller
turns
very
later
than
the
take-up
idler,
bend
the
part
(C)
of
head
base
which
is
contacted
with
the
take-up
idler
by
the
part
(D)
to
the
(E)
direction
as
shown
in
Fig.
18.
b.
{f
the
take-up
idler
turns
later
than
the
pinch
roller,
bend
the
part
(C)
to
(F)
direction.
Head
base
Take-up
Idler
Fig.
18
Cue
&
Review
Mechanism
1.
Timing
of
Cue
Action
a.
In
the
playback
mode,
check
to
see
that
the
take-up
reel
disk
stops
turning
after
the
pinch
roller
has
stopped
turning
or
stops
at
the
same
time
and
then
the
mechanism
becomes
fast
forwarding
mode
when
the
CUE
button
has
been
pressed.
b.
If
the
timing
is
out
of
order,
adjust
it
as
following
the
item
2
of
“Play
Timing”.
2.
Timing
of
Review
Action
a.
In
the
playback
mode,
check
to
see
that
the
take-up
reel
disk
stops
turning
after
the
pinch
roller
has
stopped
or
stops
at
the
same
time
and
then
the
mechanism
becomes
rewinding
mode,
when
the
REVIEW
button
has
been
pressed.
b.
If
the
timing
is
out
of
order,
adjust
it
as
following
the
item
2
of
“Play
Timing”.
Pause
Timing
In
the
playback
mode,
check
that
the
PAUSE
button
is
locked
and
the
mechanism
temporarily
becomes
stop
mode
when
the
PAUSE
button
has
been
pressed,
and
that
the
button
is
released
and
the
mechanism
becomes
playback
mode
when
the
button
has
been
pressed
again.
If
the
mechanism
becomes
fast
forwarding
mode,
when
the
PAUSE
button
has
been
gradually
pressed,
bend
the
part
(G)
of
pinch
roller
arm
to
the
arrow
direction
to
adjust
that
the
take-up
reel
and
the
pinch
roller
stops
at
the
same
time
as
shown
in
Fig.
19.
Pause
Bar
Pinch
Roller
Arm
Fig.
19
Thrust
of
Flywheel
The
clearance
between
the
top
of
the
flywheel
shaft
and
the
thrust
screw
should
be
within
0.1
to
0.4
mm.
If
the
clearance
is
out
of
limits,
adjust
the
thrust
screw
for
normal
value.
Note:
After
adjustment,
fix
the
thrust
screw
with
lock
adhesive.
Thrust
Screw
Cy
0.1
~0.4
mm,
Fig.
20
Location
of
Heads
The
play/record
and
erase
heads
should
be
positioned
as
shown
below.
Guide
Pin
Erase
Head
Play/Record
Head
+0.45
iEE:
-0.25
Fig.
21
Torque
ee
a
TT
Note:
If
the
torque
is
out
of
limit,
change
the
take-up
reel
disk.
eae
be
ee
RC-636L/LB
No,
1372
RC-636L/LB
Block
Diagram
Tuner
Section
X1
X2
X4
FMO
2501342
2SC461 2SC461
e
X6
2S5C460
FM
RF
FM
RF
FM
MIXER
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FM
IF
AM
MIXER
X5
2SC460
X3
25C1342
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FM
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and
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oad
1
&
D5
HV80
Jig
mono
AM
DETECTOR
X7
2SA844
METER
—-OMETER
DRIVER
Fig.
22
Playback
Mode
Fig.
23
Recording
Mode
MICO
.
Pe
er
aaae
D201
HV80
DIN
O--——-o
MICROPHONE
©
No.
1372
t=
RC-636L/LB
Wiring
Connection
FROM
EXT
ANT
TERMINAL
ROD
ANTENNA
SPEAKER
RIGHT
SPEAKER
FROM
SHIELD
PLATE
(REAR
CABINET)
Fig.
25
No.
1372
=.43)>
RC-636L/LB
Schematic
Diagram
of
RC-636L/LB
(Tuner)
L4
(LW)
VR2
100k(B)
OVF1A28-015'/
1000P
C54
C14
2P
X4
25C461(C)
(VP
NOTE
1VOLTAGES
AGAINST
MINUS
POTENTIAL
WITH
NO
SIGNAL
C73
440.047
C69
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Sere
en
X7
2SA844(E)
R39
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26
No.
1372
sie
RC-636L/LB
Schematic
Diagram
of
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X302
|
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205
|
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|
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|
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REC
SWITCH
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NO.
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249
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—_-—
S6-1---2
MONO
STEREO
SWITCH
(STEREO
POSITION)
251.351
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SWITCH
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NO.
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344,265
345
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SELECT
SWITCH
(220V
POSITION)
247,
347,249
349
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SOCKET
si-1---4
DIN
SWITCH
(OFF
POSITION)
$12-1---4
TAPE
SELECT
SWITCH
(NORMAL
‘POSITION)
Shaded
parts
show
safety
assurance
parts.
Fig.
27
AS
No.
1372
|
RC-636L/LB
Tuner
Circuit
Board
Ass’y
TOP
CN4Q04P
aN
=
C89-e,\
C49
C58
‘
aN
cae
R42
ae
0
:
.
webs
4,
ce
Np
ened
R360
>
ty
52
ds
9
Of
~
Positive
Line
Common
Line
Fig.
28
Note:
The
circuit
board
assembly
will
not
be
available
as
spare
part.
Transistors
2SC1342(B)
2SC461(C)
(
2SC460(C)
(
2SA844(E)
(
2SC458(C)
(
320MHz
230MHz
200MHz
230MHz
Description
HA11251
HITACHI
Integrated
Circuit
HA11227
"
1S2790
HV80
1N34A
Variable
Capacitance
Diode
Silicon
Diode
Germanium
Diode
No.
1372
—16—
Resistors
ORD143K-563
QORD141K-153
w
473
QRD143K-470
ORD141K-472
ORD143K-182
ORD141K-474
ORD143K-101
7
-222
ORD141K-471
ORD143K-224
-104
471
-334
-105
-332
QRD141K-102
"
-105
ORD143K-103
tt
-561
"
331
:
-682
ORD141K-394
ORD143K-104
ORD141K-331
ORD143K-472
ORD141K-102
"
-103
ORD143K-473
"
-154
QRD141K-561
Ht
-100
ORD143K-392
u
-103
tt
-223
QRD141K-273
QRD143K-820
i!
471
QRD141K-102
ORD143K-332
QRD141K-222
QRD143K-222
QRD141K-471
ORD143K-101
-4R7
QRD141K-101
ORD143K-103
473
-682
-564
-220
4R7
Carbon
ee
QRD143K-101
Carbon
100Q
“”W
f
-102
ORD141K474
QVP8A0B-014
Variable
(semi-fixed)
B-curve
Capacitors
QCF11EZ-104
tt
-103
QCS11HK-150
”
-5RO
QCS$11HJ-331
QCTO5CH-150
QCS11HK-7RO
"
-100
"
-4RO
OCY41HK-102
QCS11HK-2RO
QCF11EZ-223
QCY41HK-472
QCS11HJ-270
QCS11HK-3RO
"
-151
"
-8RO
OQCY41EK-103
OFM41HM-473
Mylar
QEW41CA-106
Electrolytic
QFS41HJ-131
Polystyrol
QCS$11HJ-301
Ceramic
QFS21HJ-332
Polystyrol
QCTO5CH-300
Ceramic
”
-200
QCS11HK-470
QCY41HK-472
"
-681
QCF11EZ473
”
-223
QEW41HA-105
QCS11HK-8RO
QEW41AA-107
QCS11HK-101
Electrolytic
Ceramic
Electrolytic
Ceramic
”"
-560
”
QFM41HM-473
Mylar
QEW41HA-474
Electrolytic
QEW41CA-106
”
QCF11EZ-103
Ceramic
QCY41HK-102
QCS11HJ-301
QCS11HK-151
QCF11EZ-223
QEW41AA-476
Electrolytic
”"
-107
”
QCS11HJ-131
Ceramic
C62
QCY41EK-103
C63
OCY41HK-472
C65
OQEW41EA-475
C66,67,68,70
QEW41HA-105
C69
QFS21HJ-471
C71
QEC81HM-334
C72
QEW41AA-107
C73
OFM41HM-473
C74
OQCF11EZ-223
C75,76
OQCY41HK-472
C77,78,79,80
-152
OCY41EK-103
QEW41HA-474
QEW41AA-108
QFM41HM-473
QCS11HK-101
OCF11EZ-223
OCY41HK-222
QCS11HK-150
QCF11EZ-473
QAP1224-504
QAT2002-001
Others
V03047-026
V03105-030
"028
VQOR1014-202
VQOL1T03-201
VOM1T03-201
VQOS1T03-205
03226-024
VOP0002-393
V03047-11
VBP2M3E-001
V03059-016
"
-015
QSSA401-002
VQT7A18-101
VQT7A11-301
VOT7F
12-104
QMV
5005-006
u
-003
Vv04041-1
VKL3143-001
V44691-001
Ceramic
"
Electrolytic
”
Polystyrol
Solid
Al.
Electrolytic
Electrolytic
Mylar
Ceramic
Electrolytic
"
Mylar
Ceramic
Variable
Trimmer
Inductor
Coil
Band
Pass
Filter
Ceramic
Filter
Slide
Switch
L.F.T.
"
Connector
ww”
Test
Point
Board
in
Tab
Wire
Clamp
0.01uF
4700pF
4.7uF
TUF
470pF
0.33uF
100uF
0.047
uF
0.022uF
4700pF
1500pF
0.01yuF
0.47uUF
1000uF
0.047uUF
100pF
0.022uF
2200pF
15pF
0.047uF
includes
TC1~4
FM
IF
Trap
FM
RF
FM
Osc.
SW
Antenna
LW
Osc.
Mw
SW
MPX
SW
Antenna
FM
Antenna
FM
IF
AM
IF
|
RC-636L/LB
[eee
ene
ne
25V
No.
1372
RC-636L/LB
Amplifier
Circuit
Board
Ass’y
Transistors
S7
_<—
X201,301
28C1335(D,E)
230MHz
X202,203,302,303
2SC458(D)
7
X401,402
2SD468(C)
190MHz
X403
2SC458(D)
230MHz
Wee
o——
R407
—e
x401
ICs
&
Diodes
Asterisked
parts
(*)
show
new
parts.
1C201,301
*BA333
Integrated
Circuit
TOYO
DENGU
1C401
*AN7145(M)
"
MATSUSHITA
D201,301
HV80
Silicon
Diode
HITACHI
D202,203,302,303
1K34A
Germanium
Diode
UNIZON
R404
9
of
D405
1K34A
"
it
—navs—e\
\ecsse
D406
HZ7(C)
Zener
Diode
HITACHI
C3;
e-C333-0
Resistors
fet
[arse
[
Pars
ome
|
Ception
|
R201
,301
ORD141K-102
Carbon
1kQ
%
R202,302
"100
"
102
"
R203
"225
"
2.2MQ.
"
R204,304
"
332
"
3.3kQ
"
3
R205,305
"331
"
3302
”
3
R206,306
"294
"
220kQ
"
2
R207,208,307,308
"103
"
10kQ
"
3
R209,309
n
333
"
33kQ
"
cs
R210
"152
"
1.5kQ
"
3
R211,217,311,317
"
682
"
6.8kQ
"
c
R212,312
n
4221
"
2202
"
is
R213,313
"393
"
39kQ.
"
.
R214
ORD143K-123
"
12kQ
"
2
R215
ORD141K-183
"
18kQ
”
5
R216,316
"561
"
5602
"
a
R218,318
”
-154
"
150kQ
"
°
R219,220,319,320
"183
"
18kQ
"
5
R221
,224
321,324
OQRD143K-103
"
10kQ
"
8
R222,322
ORD141K-273
"
27kQ
”
§
R223,323
OQRD143K-472
"
4.7kQ
”
g
R225,325
ORD141K-225
"
2.2MQ
"
®
R226,326
AT
”
4.7kQ
"
o
R227,327
"470
"
472
"
eg
sae
©
R228
"101
"
1002
"
wca00e
gg
8
R229
329
"473
"
47kQ
"
oe
Phe
o
2
R230,330
"
—
-680
i
680.
"
Pec
are
c
=
.
R231
237,331,337
ORW123K-2R2
Wire
Wound
2.2
~W
“
a
5
2
R232,332
ORD141K-151
Carbon
1502
%W
>
6
=
R234
334
n
229
"
2.2kQ
"
5
6€
2
R235,335
ORD143K-104
"
100kQ
"
&
8
3
R236
336
ORD121J-106
"
10MQ
*%W
S
R238
338
"ART
"
4.72
"
&
R239
339
ORD141K-221
"
2202
%W
£
R240,340
"474
"
470kQ.
"
e
R241,341
”
-122
”
1.2kQ
"
R243,343
ORD143K-104
"
100kQ.
”
R244
QRD141K-182
"
1.8kQ
"
R245
ORD143K-184
"
180kQ
"
Fig.
29
R246
i,
9A
D9
"
1.2kQ
"
R247,347
QRD141K-103
"
10kQ
"
Note:
The
circuit
board
assembly
will
not
be
available
as
spare
part.
No.
1372
ahaigie
R248,348
R249,349
R303
R310
R314
R315
R328
R344
R345
R346
R401
R402
R403
R404
,409
R405
R406
R407
R408
R410
R411
R412
R419
R420
R421
VR203,303
Capacitors
C201,301
C202,302
C203,303
C204
,304
C205,305
C206,207,306,307
C208,308
C209,309
C210,310
C211,311
C212,312
C213,313
C214,314
C215,218,315,318
C216,316
C217,317
C220,320
C221
,321
C222,322
C223,323
C224
,324
C225,325
C226,326
C227
,327
C228,328
C229,329
C230,330
C231,331
C232,332
C233,333
C234
,334
QRD141K-155
QRD143K-103
i
-225
iW
-152
QRD141K-123
ORD143K-183
iW
-101
yi
-182
QRD141K-184
q
-122
QRD121J-1RO
QRD143K-102
QRD141K-271
-100
"
-563
"
-103
me
-4R7
u
-273
ORD143K-394
ORD141K-102
Ht
-680
"
-272
ORD143K-101
QRD141K-122
QVP8A0B-054
QEW41HA-474
QCS11HK-151
it
-101
OCY41HK-681
QCS11HJ-471
QCS11HK-151
QEW41AA-107
QEW41HA-474
7
-335
OQCY41HK-681
QFM41HK-223
QEW41AA-227D09
y
-336
QEW41EA-475
QEW41AA-476
QEW41CA-106
QFM41HK-153
QCY41HK-272
QEC41HM-224
QCY41HK-152
QEC41HM-104
QCY41HK-222
QEW41EA-475
QEW41CA-477
QEW41HA-474
QEW41AA-476
QCS11HK-201
u
-560
QEW41AA477D11
QFM41HM-104
QEW41AA-477
pene
[pews
[oan
Variable
(semi-fixed)
Electrolytic
Ceramic
Ceramic
Mylar
Electrolytic
Mylar
Ceramic
Solid
Al
Electrolytic
Ceramic
Solid
Al
Electrolytic
Ceramic
Electrolytic
a”
Ceramic
"
Electrolytic
Mylar
Electrolytic
—19—
C€238,338
€C239,240,339,340
C241,341
C243,343
C246,346
C250,350
C251,351
C405
C406
C407
C409
C410,412
C411,414
C413
C415,416
C417
C418
C419
C420
C421
C422
C423
C424
C426
C427
C429
C430,433
C431
C432
C434
C435,436,437
C438
C439
C440
C442
L.201,301
L401
L402
1.403
QEW41HA-474
OQCY41HK-272
QCF11EZ-473
QEW41HA-474
QCS11HK-331
QEW41HA-335
QCS11HK-470
"
-101
QEW41CA-228
"
477
QEW41AA-108
uy
-227
QFM41HK-223
OCY41HK-332
fh
472
"
-222
i
-682
QEW41CA-106
QEW41AA-107
QEC41HM-224
OFM41HM-104
QCS11HK-101
QCF11EZ-103
QEW41AA-476
QCS11HK-560
OQCY41HK-472
QEW41CA-477
QCS11HK-151
OQCY41HK-332
OQCF11EZ-223
QEW41AA-107
QCS11HK-151
OFM41HK-223
QEW41CA-477
-107
QCS11HK-151
*VQP0002-103
03226-2K
V03083-019
T41572-001
QSS6201-205A
*QSS1301-001
QSSA301-001A
QSP4210-061
*QMV5004-004
*QMV5004-003
*QMS3501-014
*VMJ4001-001
*QMS2501-102
*QMS6312-004
QMC9014-006
*QMA1221-004
A74138-2
*V45043-005
*VYH4252-001
Electrolytic
Ceramic
"
Electrolytic
Ceramic
Electrolytic
Ceramic
aw”
Electrolytic
"
Mylar
Ceramic
a”
Electrolytic
wu"
Solid
Al
Electrolytic
Mylar
Ceramic
a”
Electrolytic
Ceramic
w
Electrolytic
Ceramic
ww”
"
Electrolytic
Ceramic
Mylar
Electrolytic
"
Ceramic
Inductor
a"
Coil
Inductor
Slide
Switch
Push
Switch
Connector
ww
Jack
Ass’y
Jack
Board
Ass’y
DIN
Socket
Jack
Ass’y
Test
Pin
PC
Joiner
Switch
Connector
|
RC-636L/LB
ee
[pees
[ein
C236
,237
336,337
Bias
Osc.
Record
—
Playback
BEAT
CUT
FUNCTION
DIN
4-pin
3-pin
MIC
EXT
SPEAKER
REMOTE
HEADPHONE
DC
12V
for
$2,3
No.
1372
RC-636L/LB
Exploded
View
of
Cassette
Mechanism
Fig.
30
—20
—
No.
1372
This manual suits for next models
1
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