Panasonic RQ-218S-E User manual

Service Ma
ORDER NO. ARD-7503021C
nual
Portable Cassette Recorder
RQ-218S RQ-218S-E
Mini Cassette Recorder with Built-in Microphone
RS-218S MECHANISM SERIES
Specifications (Catalog specifications for sales)
Power requirement:
Motor:
Frequency response:
Recording system:
Operation:
Tape speed:
Program time:
National Panasonic
Battery; 6V, (four-UM-3, R6 size dry
batteries)
AC; with optional AC adaptor/charg-
er RP-667, RP-667-E in Europe
Car boat battery: with optional
car/boat adaptor RP-916, RP-914-
E in Europe
Rechargeable battery: with optional
rechargeable battery pack RP-093
Electrical governor motor
100~ 8,000 Hz
AC bias
Pushbutton one-touch operation
with Auto-Stop mechanism
4.8cm/s, (1-7/8 ips)
1 hour with C-60 cassette tape
Fast forward time:
Rewind time:
Track system:
Input:
Output:
Speaker:
Dimensions:
Weigt:
Approx. 270 seconds with C-60
cassette tape
Approx. 150 seconds with C-60
cassette tape
2-track monaural recording and
playback
MIC; sensitivity 0.28mV/applicable
microphone impedance 200 ~
6002 (recommended microphone
WM2202, WM2213N)
DC IN; 6V
MONITOR; 89
REMOTE; for start and stop at hand
5cm, (2"') PM dynamic speaker
8.9cm (W) x 14.2cm (H) x3.8cm (D)
3-1/2"
(W)
x
5-5/8"
(H)
x
1-1/2'(D)
550g, 1-1/4 lbs.
Specifications are subject to change without notice for further improvement.
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japan

LOCATION
OF
PARTS
@ Level meter
@ Fast forward/rewind button
@® Playback button
@® Record button
® Stop/eject button
Built-in microphone
@ Pause bution
Volume
control
©
Remote
control
connection
jack
Microphone
jack
@ Monitor jack
@
Tape
counter
and
reset
button
@
Cassette
compartment
cover
Battery compartment
HOW
TO
REMOVE
CASSETTE
LID,
HOW
TO
REMOVE
CHASS!S
SIDE
PANEL
AND
FRONT
PANEL
1.
Remove
4
chassis
holding
screws
(C)
and
1
screw
1.
Remove
4
side
panel
holding
screws
(A)
and
2
front
(D).
panel
holding
screws
(B).
2.
Then
chassis
can
be
removed.
2.
Then
front
panei,
assembly
of
cassette
lid
and
sid
panel can be removed.
j
4
3
E

ADJUSTMENTS
MEASUREMENTS AND ADJUSTMENTS METHOD
A. PRESSURE ROLLER ADJUSTMENT (See fig. 4)
1. Set into playback mode.
2. Connect the spring gauge to pressure roller lever
and pull it in the direction of the arrow as shown in
fig. 4.
3. Measure the tension at the monent when the pressure
roller moves away from the capstan.
Standard pressure: 230+30 gr
4. |f the pressure is out of tolerance, bend the part (a)
of the pressure roller spring in either direction shown
by the arrow until the correct pressure is attained.
Pressure Roller
B. HEAD AZIMUTH ADJUSTMENT (See fig. 5)
1. Play the test tape C-AA.
2. Adjust the screw for maximum output at monitor
jack.
.
Azimuth Adjustment Screw
C. TAPE SPEED ADJUSTMENT (See fig. 6)
1. Play the test tape C-WAT and supply output signal
to frequency counter.
2. Read the value on frequency counter.
Standard value: 3000 Hz+3%
3. If the value is out of tolerance, adjust semi-fixed
variable resistor (Shown in electrical parts location)
on motor governor circuit board and take aim at
3000Hz+1% in order to secure accuracy.
Monitor Jack
D
1
2
3
E
1
2
nm
. RECORDING BIAS CURRENT ADJUSTMENT (See fig. 7)
. Connect 10Q resistor as shown in fig. 7.
. Connect VTVM to both ends of 10Q resistor.
. Set into record mode and read voltage on VTVM.
Standard voltage: 8+1 mV
. If the voltage is out of tolerance, change the short
point A, B, C, of bias oscillation circuit.
To increase, short s% A.
To declease, short s% C.
. LEVEL METER ADJUSTMENT (See fig. 8)
. Supply DC 4.2 V to DC IN jack.
. Set into playback mode and. confirm the indicator
position on level meter is as shown below.
DC4.5V UNIT
Indicator position:
. If the indicator get out of place, adjust VR2 until the
level meter indicates above position.
. OTHER SPECIFICATIONS FOR REFERENCE (NO ADJUSTABLE)
ITEM VALUE REMARKS
Wow & flutter (RMS) less than 0.4% Use 3 kHz test tape (C-WAT).
Takeup torque. 55+15 er Use cassette torque metter (RP-8063).
To obtain 70#A of recording current through the
recording head. Stop the bias oscillation by
unsoldering R30 shown in printed circuit board
view on page 4.
Standard recording input level. 1kHz —72+5 dB
Bias oscillation frequency. 44+5 kHz
DC 7.9+0.7 mA
Erase current.

SCHEMATIC
DIAGRAM
MODEL
RQ-218S,
RQ-218S-E
=
|
|
|
|
Trl
Tr2
Tr3
2SC644(@)(S)
2SC828(R)
ais
2SC828(R)
[i
I
S1-1
Sl-2
ha!
|
rane
ee
Feat
4.2V
b
}
J
|
00000
10
[ll
[12
|
2
B
5
6
R11
820(1/4eW)
| RG
|
2.7K(1/aW)
clo R12
6V68 —3.3K(/aW)
|
i]
|
1 VRI
1OK(A)
> g e).
aN Ve
C6
0.001 | R5 56K(/e 7
RA al
220
ae ae
C20. R20
3V10 —-.2.2K('/eW)
SSS Se Se Se ora
TIM actin
FUSE Oo REMOTE |
sagen
!
(Yaw)
C23
0.01
Pet
oftt>
Js
SN
A
R24
47K("/eW)
'
DC
IN
i]
R30
47(14W)
=
=
;
ADAPTOR
I
eee
|
=>
=
UM3x4
|
|
|
=
=
L
O—-—-O-
O—
—
anaes
ceases
a)
I
L.
co
|
fe
Lo
=
|
R32
R33
I
3
47
|
O
©
|
0
$2
i]
O
$3
|
O
!
bote
See
See
eS
SS
SSS
SS
eee
Se
Sea
eee
NOTE:
TERMINATIONS
(BOTTOM
VIEW)
1.
$1-1~S1.-7......Record/playback
select
switch
(shown
in
playback
position).
DSO
cienees
inven
Power
ON/OFF
switch
(shown
in
OFF
position)
.
1c1
Tr1~Tr6
3:°S3)..nieas
Pause
switch
(shown
in
OFF
position).
AVR: sccncsbdeiseess Volume control.
SB
NR2:
ctisveeceare:
Level
meter
adjustment
VR.
6
_
Resistor
values
are
in
ohms
(Q),
1/4
watt
unless
specified
otherwise.
K=1,000Q.
7.
Capacitor
values
are
in
microfarads
(uF)
unless
specified
otherwise.
Lb
P=Pico-farads.
8.
Voltage
values
are
under
no
signal
conditions
with
volume
at
minimum
position.
E
CoG
Use
VTVM
for
voltage-measurements.
9.
3%
A,
B,
C
are
short
circuit
for
bias
current
adjustment.

WIRING CONNECTION DIAGRAM
MOTOR
BLK
YEL
RED
ORG
CONTROL CIRCUIT
°
BLK
O 0
RED
IC1 BLU
7
5.3v{ — | 14v [ Lis] 27v [ 6.0V 6.0V
STR en een
om } £20
fy V10 :
awe ee 181
Clg
1 .6V C15 0.0
D: .
v v : ¢
902 | Care
0 : P
~ 1
T
rl
SCB28(R)
C18 ina
YE -
R28230( Lm,
wn
df concen NOD SOKURWT-” ORG
Tr6
Cl 5.2V
Bl 0.9V
E[ 0.35V
BLK
WHT BLK
BLK WHT
ae
VU METER
SPEAKER
21
a7
VR2
(B)
VOLUME CONTROL
8
MODEL RQ-218S, RQ-218S-E
BUILT-IN MICROPHONE
RED
RED
WHT] {BLK
Tr3 Tr2
Ci 6.0V C} 2.8V
8] 5.8V Bi 1.5V
Ey} 5.3V E} 0.94V
IN
ACK
ae 4 ce
4 7 UR
3 [ .
10K * 6
/aw) 0.00) 2
7 3V
=
BL Cl * .
( ——-
ox aN
S2 LEAF SWITCH
5.2
RED.
RED
0.75V : ORG WHT
6.0V
HEAD
Meter adjustment VR
BLK
BLK
+x [ec
ee eons é
wT
EEE! coxa rere ee
wn
m
aegnenensesiaanne™
BATTERY CASE
HOLDER
NOTE:
$3 SLIDE SWITCH
REMOTE JACK
IMIC JACK
MONITOR JACK
NOTE:
BLK...... Black
BLU...... Blue
BRN...... Brown
GRY...... Gray
GRN...... Green
L. BLU...Light Blue
NIL ...... No Color Mark
ORG...... Orange
PNK...... Pink
RED...... Red
SLD fcc Shield Wire
VLT...... Violet
WHT. ...White
YEG 33.3 Yellow
The circuit shown in red on the conductor is B circuit.
Values indicated in
[_] are DC voltage between the
chassis and electrical parts.
3% A, B, C are short circuit for bias current adjustment.

EXPLODED
VIEWS
ao S2
M55
M46
: : M46
M47 e a ee es
S. os - a M47
Sa al :
i ee Yee
Oo
M567
M38

ELECTRICAL PARTS LOCATION
Tape speed
adjustment VR
CABINET PARTS
218
(
|
|
|
|
Printed in Japan.

REPLACEMENT PARTS LIST
MODEL RQ-218S, RQ-218S-E
National Panasonic
N
RQ-218S, RQ-218S-E
NOTE:
1. Be sure to make your orders of replacement parts according to this list.
2. “@’ in “Remarks” column indicates new parts.
3. “%” indicates the serrated parts with 18 notches.
NOTA:
1. Habra que asegurarse que los pedidos de piezas de repuesto se hagan segun esta lista.
2. “@’” marcado en la columna “Remarks”, quiere decir que las piezas son nuevas.
3. ‘“S%*” indica las partes dentadas con 18 ranuras.
NOTE:
1. Bien s’assutet de se conformer a la liste suivante pour les commandes de piéces de
rechange. ‘
2. ‘@". dans la colonne “Remarks”, indique les piéces nouvelles.
3. “#" indique les piéces cannelées a 18 crans.
HINWEIS:
1. Bestellen Sie Ihre Ersatzteile genau nach dieser Liste.
2. “@” in der “Remarks” Spalte bedeutet “neue Teile’”.
3. “a” bezeichnet die gezahnten Teile mit 18 Zahnen.
1. BAAR aT, BAKA AT SR
2. [25] (Remarks) —i PZ “OO” JER BRE CAA AEF TL He
3. “Me” FEF RAC Ae Ui 18 El ES SBR GE

RQ-218S, RQ-218S-E
Price (Per Pce.)
Description
Part
No.
Remarks
MECHANICAL PARTS
M1
Stop
Ring
XUC25FT
18
RQ-309S
2
Spring,
Play-Record
Select
QBN1402A
1
®
3
Shaft,
Play-Record
Select
QMN1916
1
®
4
Washer
QBW2016
13
RS-104S
5
Erase
Prevention
Lever
QXRO115
1
|
®
M6
Screw
al
XSN2+3
8
RQ-309S
7
Washer
|
XWA2FX
7
©
8
Eject
Spring
Holder
QXA0423
1
'N)
Mg
Volume
Angle
QMA2400
1
(N)
0
Screw
QHQ1148
4
]
®
11
Play-Record
Select
Lever
|
omarse
1
®
M12
Record
Lever
QXRO119
1
®
13
Rubber
oT
QBG1477
1
ia
®
a Bed
14
Play-Record
Select
Rod
QMR1419A
1
(N]
=.
M15
Nut
XNG2ZEFX
1
®
16
Washer
~[
ean
2
i
rN
M17
Gear,
Supply
Reel
ll
QDG1066
1
=I
@
18
Washer
QBW2014
3
RS-104S
19
Belt
(B),
Tape
Counter
QDBO0206
1
|
TO
20
Washer
QBW2030
3
]
RQ-454S
21
Pulley
QDP1610
i
®
22
Belt
(A),
Tape
Counter
QDB0205
1
iN]
23
Washer
QBK7121
2
RS-610US
24
Spring,
Erase
Prevention
Lever
QBN1398
1
|
®
25
Washer
QBW2010
3
RQ-4545
26
Spring,
Playback
Lever
QBT1768DA
1
'N)
27
Screw
XSN2
+4
2
|
RQ-309S
28
Spring,
Stop
Lever
QBC1244
1
(N)
29
Spring,
Eject
Rod
QBT1770DA
1
@
30
Cord
Stopper
(B)
QTDAOOO1
1
/RQ-215S
31
Guide
Pole
(B)
QMN1914
1
@
32
Stop
Lever
Assembly
QXRO120
(N)
33
Steel
Ball
3¢
QDK1006
1
RS-45.S
i
—- 2—

RQ-218S, RQ-218S-E
Price (Per Pce.)
Description Remarks
Spring QBC1211 (N}
Motor Operating Lever QXLO914 ®
Stop Ring XUC3FT RQ-435S
Spring Washer QBP1519 RQ-454S
Flywheel QXFO099 1 rN)
Belt, Flywheel QDB0203 1 'N)
Washer QBW2012 RQ-454S
Belt, Fast Forward QDB0204 1 (N]
Idler QXRO117 1 ®
Spring, {dler Pressure QBN1401A 1 lo
Takeup Reel QXD0035A rN]
Washer QBW2008
Screw QHQ1205 ®
47 Washer XWG2FX 4 ®
48 Auto Stop Lever Stopper QMCO016 1 ®
M49 Auto Stop Lever QML2731B 1 (N)
M50 Spring, Auto Stop Lever QBN1397B 1 (N)
51 Stop Lever QXLO917 1 (N]
M52 Fast Forward Rod QXR1055 1 'N]
_ ees =
M53 Spring, Motor Operating Rod QBT1769 1 ®
M54 Motor Operating Rod QMR1417 (N)
55 Plate QBK1212A 1 iN)
56 Washer QBW2019 RQ-454S
57 Bottom Plate QXK1566A 1 (N)
58 Spring, Back Tension QBC1272 1 | (N)
59 Fast Forward Arm QXLO915 1 iN)
60 Fast Forward Gear Arm QXL0916 1 (N)
61 Fast Forward Gear | QDG1065 1 ®
62 Screw QHQ1149 3 ®
63 Washer QMZA0002 r 1 RQ-215S
M64 [ Rubber [ QBGAO0001 1 RQ-222AS
65 Flywheel Plate QXK1567 1 ig
66 Motor ; MFES5L6AXM 1 ® 2
67 Fast Forward Indicating Plate | QMF1588A 1 | (N) :
68 Ornament Plate (A) QXRO121 1 (N)
| |

RQ-218S, RQ-218S-E
Price (Per Pce.)
Description
Remarks
69
Screw
QHQ1185
6
®
M70
Spring,
Eject
Support
QBP
1602
1
'N)
a
|
Sines
Eject
QBP
14948
ay.
®
72
Supply
Reel
QXxD0033
1
®
73
Spring,
Cassette
Holding
QBP1496C
1
'N)
M74
Stop
Ring
XUC15FK
1
|
RQ-454S
75
Pressure
Roller
Arm
QXL0923B
fol
|®
76
Spring,
Pressure
Roller
QBN1396A
i
(N}
77
Detecting
Piece
QBJ2232
[
|
la
78
Gear
QDG1067
®
M79
Eject
Rod
QXRO116
|
®
{
80
|
Tape
Counter
QDC0058
'N)
M81
Screw
XSN2
—4
1
RQ-445S
ie
Seo
82
Washer
QWE2FX
1
|
'N]
83
|
Wire
Clumper
QMA2428A
‘te
®
M84
Washer
XWC2BFX
[3
(N)
M85
Play
Button
QGO1094C
1
Ny
86
Record
Button
QGO1L095C
1
(NY
M87
Playback
Rod
QXRO133
1
®
—_.-.--+——.
M88,
Screw
QHQ1147
4
®
M89
|
Ornament
Plate
(B)
QGK2501
1
|
“as
®
30
|
Support
Rod
QMF1712
1
®
T
RESISTORS
Rl,
22
Solid
Resistor
4.7KQ
1/8W
ERC18GJ472
2
R2,
12
”
3.3KQ
1/8W
ERC18GJ332
2
|
R3,
10,
14
a
10KQ
1/8W
ERC18GJ103
3
l
R4
”
220Q
1/8W
ERC18GJ221
1
R5
”
56KQ
1/8W
ERC18GJ563
1
R6,
8
”
2.7KQ
1/8W
ERC18GJ272
2
|
R7
”
15KQ
1/8W
ERC18GJ152
1
RQ
”
68KQ
1/8W
ERC18GJ683
1
|
Ril
”
8202
1/8W
ERC18GJ821
1
:
R13,
20
!
”
2.2KQ
1/8W
ERC18GJ222
|
2
R15
”
18Q
1/8W
ERC18GJ180
1
}

RQ-218S, RQ-218S-E
Price (Per Pce.)
Ba Remarks
Description Part No.
ERC18GJ151
Solid Resistor
R17
”
2.2Q
1/4W
ERC14GJ2R2
R18
mS
27Q
1/4W
ERC14GJ270
1
ERC14GJ120
ERC18GJ102
ERC18GJ331
R24
”
4A7KQ
1/8W
ERC18GJ473
R25
”
3.9KQ
1/8W
ERC18GJ392
1
R26
”
10Q
1/8W
ERC18GJ100
i
R27
”
68Q
1/8W
ERC18GJ680
1
R28
”
82Q
1/8W
ERC18GJ820
1
R29
”
100Q
1/8W
ERC18GJ101
ERC18GJ470
R31
”
27KQ
1/8W
ERC18GJ273
R32
”
3.30
1/4W
ERC14GJ3R3
R33
”
4.7Q
1/4W
ERC14GJ4R7
VARIABLE RESISTORS
VR1
Variable
Resistor
10
KQ
(A)
EVLAOAT10A14
1
®
VR2
Semi-fixed
Variable
Resistor
2KQ
(B)
EVMF4GA00B23
1
J@
CAPACITORS
C1,4
Electrolytic
Capacitor
LuF
ECSZ10EF1Q
2
i
C2
Ceramic
Capacitor
0.1.
uF
ECKD12V104MF
1
|
C3, 14 Electrolytic Capacitor 100vF ECEA6V100LU 2
C5,
6,
7
|
Ceramic
Capacitor
0.001
4F
ECKDLH102PF
3
C8, 13, 20 Electrolytic Capacitor 10eF | ECSZ3EF10Q 3
C9,
15
ylar
Capacitor
0.0154F
ECQM05153MZ
2
|
C10
Electrolytic
Capacitor
6.8uF
ECSZ6EF6R8Q
1
|
C11,
18,27
”
1004F
ECEALOV100LU
3
|
C16
|
Ceramic
Capacitor
82
pF
ECCD1H820JC
1
|
C17
Electrolytic
Capacitor
220KF
ECEA6V220LU
l
|
C19
”
ler
ECEA50V1LU
1
|
C21,
25
”
3.3uF
ECEA25V3R3LU
2
|
C22 ” 33uF | ECSZ3EF33Q 1
i
;

RQ-218S, RQ-218S-E
ue, Price (Per Pce.)
Description Part No. Remarks
Mylar Capacitor 0.01 4F ECQM05 103KZ
” 0.0022uF ECQM05222KZ
Electrolytic Capacitor 2.2uF ECSZ25EF2R2Q
» 2.2uF | ECSZ3EF2R2Q
TRANSISTORS
Trl Transistor 2SC644@ | RS-715US
Tr2, 3, 4,5, 6 » 2SC828 RQ-317S8
+
INGRATED PART
Integrated Circuit QVIM51L181L
DIODES & RECTIFIER
1$1211 RQ-445S
COMMON
MA150 RQ-454S
Silicon Varistor KB265A RQ-445S
gi Soe Se Ae rr I
TRANSFORMER
————
Oscillator Transformer QLBO309 RQ-317S
SWITCHES
Slide Switch (Record/Playback) ESD1248
Leaf Switch QSB0194.
Slide Switch (Pause) QSS1202H
JACKS
Included in Jack Board Refer to E5
DC IN Jack QJA0143
ELECTRICAL PARTS
Head WYO044AZ
Speaker EAS5P03S
Built-in Microphone WMO58P
Level Meter QSL1048

RQ-218S, RQ-218S-E
Price (Per Pce.)
Ref.
No.
Description
Part
No.
Remarks
£5
Jack
Board
QJA0441
|
(N}
E6
Volume
Knob
Assembly
QYT0358
®
E7
ylar
Sheet
QTW1122
'N)
E8
Rubber,
Microphone
Cover
QBG1475
(N)
EQ
icrophone
Cover
—QKIJO059
|
®
E10
Spring,
Level
Meter
Holding
QBN1394
®
Ell
Fuse
QLG8G018
rN}
CABINET PARTS
i
Gl
Cassette
Lid
QYKO078
'N]
G2
Cassette
Lid
Shaft
QMN1891
l@
G3
Spring,
Cassette
Lid
QBN1393
'N)
G4
Side
Panel
QYKO079
®
G5
Front
Panel
QYKO076
i
®
a
G6
Battery
Case
Holder
QYD1010
®
G7
Battery
Case
QYK0072
®
G8
Hook
QMF1713
rN}
a
@g
Screw
QHQ1151
®
ACCESSORIES
Al
Cassette
Tape
QFTITCCNAYZ
|
A2
Radio
Cord-M
RP1OA
RQ-218SN
only
(A2)
Radio
Cord-E
RPOS52A
RQ-218SE
only
A3
Erase
Plug
QJUPO959A
RQ-454S
A4
Carring
Case
QFKOO96
‘N)
:
AS
Wrist
Strap
QKH1096
(N}
A6
Earphone
EAE2SB1
COMMON
A7
instruction
Book
QQTO0846
@
RQ-218SN
only
(A7)
”
QQT0877
|
@
RQ-218SE
only
EAcKihC=
Pl
Inside
Carton
QPN3212
(N)
P2
Dust
Cover
XZB16X22A05
@

pwinted in Japan.