Panasonic RQ-J6 User manual

ORDER NO. ARD81070067C8.-07
Service Manual
Mini Cassette
AC/Battery Mini Stereo Cassette RQ-J6
(Silver)
Recorder/Player with Stereo Headphones
(This is the Service Manual for the
following areas.
| saan For all European areas,
(a oe For Asia, Latin America,
Middle East and Africa
| areas. |
see ohare For Australia.
RQ-335 MECHANISM SERIES
Specifications
Power requirement : AC; with optional AC adaptor RP-657
Battery: 6 V (four UM-3 or R6 size dry batteries)
_ Car battery; with optional car/boat adaptor RP-917
Motor: Electrical governor motor
Frequency range: 70—10,000 Hz
Track system: 4-track 2-channel stereo recording and playback
Stereo playback with stereo headphones
Tape speed: 4 8cm/s |
Fast forward and rewind time: Approx. 150 seconds with C-60 cassette tape
Inputs: Mic: sensitivity 0.25 mV, applicable microphone impedance 2002. — 6002
DC in; 6V
Out puts : Line: output level 420 mV load impedance 22k over
Headphones; output level 560 mV over load impedance 162
Head: 1 super permalloy head for record/playback
1 erase head
Dimensions: 9 9cm(W) X 15.8cm(H) x 3.8cm(D)
Weight: 520 g without batteries
Specifications are subject to change without notice.
as = - = Matsushita Electric Trading Co., Ltd.
National
He
Panasonic
P.O.
Box
288,
Central
Osaka
Japan

‘RQ-J6
CONTENTS
ITEM
PAGE
LOCATION
OF
CONTROLS
AND
COMPONENTS..-:-:-::
iced
yan
hd
that
paemtense
bet
actaesdaonuarcds
1
DISASSEMBLY
INSTRUCTIONS
sicetetacstatden
tee
ncvecseerentahjanicoeterunseiele
Meso
uidegdunatsienia
nt.
2
MEASUREMENT
AND
ADJUSTMENT
METHODS
.-----ecececcesecectceeeeteteeesesessseucuereteeaeaeeenes
3
ELECTRICAL
‘PARTS:
LOCATION
witeccscmenastsiie
tens
cogecetncey
can
acarindebs
teats
eaaeeuh
oriieeaeaaeieans
4
SCHEMATIC
DINGRAIW
eee
oiees
es
ree
heres
eter
snide
mtu
doleteeeiarueutdetd
2obauakiparaecakens
5
CIRCUIT
BOARDS
AND
WIRING
CONNECTION
DIAGRAM
-o-e-cccssssecececececteeccaccececeecaeaees
6
MECHANICAL
PARTS:
LOCATION
Secriseoreaseeseemutie
cl
dase
ct
daiwa
pets
sa
dnce
da
bbatsasnhendespeanteias,
7
CABINET
PARTS.
LOG
ATION
ccna
testcceicctcscaesisnet
econ
deen
aie
siaraiciae
cian
Mencaviue
teetnuete
ues
A)
HEADPHONES:
PARTS
LOCATION.
ce
rsesiccetecs
tn
sckeeetederdsdadsawiotentie
sei
teus
aaloden
ieee
endaceeeeding
9
LOCATION
OF
CONTROLS
AND
COMPONENTS
(1) Pause/eject button
(2) Playback button
(8) Fast forward/cue button
(4) Rewind/review button
(5) Stop button
(6) Record button
(7) Battery-check lamp
Built-in microphone
(9) Microphone jack
10) Volume control
——a\ (oe
(1) Headphones jack
@ DC IN jack
(13) Line out jack
(14) Mode select switch
Mixing switch
(6) Tape counter and reset button
(2) Cassette compartment cover
&)

DISASSEMBLY INSTRUCTIONS
To remove —— . Shown in fig. ——.
Battery case «++:
5 black screws -:
;
Main
case
assembly
and
front
iGiaciveerauioex:
panel
assembly
Bottom case assembly
L OPO Costs aes
Shield: platetssrisetiwa caewehinakccure(6)
Main circuit board
Motor governor circuit board 2 SCFEWS srreeeees

MEASUREMENTS AND ADJUSTMENTS
NOTES:
@ Make sure heads are clean. @ Volume control (L-CH, R-CH): Maximum
@ Make sure capstan and pressure roller are clean. @ Mode select switch: STEREO
e Judgeable room temperature: 20+5°C (68+9°F) e Mixing switch: OFF
ITEM MEASUREMENT & ADJUSTMENT
L-CH/R-CH output balance adjustment
1. Make connections as shown in fig. 1.
2. Playback the 8kHz signal from the test tape
(QZZCFM). Adjust screw (B) in fig. 2 for
maximum output L-CH and R-CH levels.
Head azimuth adjustment
Condition:
* Playback mode
Record/playback
head
Equipment:
«*VTVM « Oscilloscope
“VTVM Oscilloscope
Tes ae Gotti) When the output levels of L-CH and R-CH are aspaenemags )
- QZZCFM not at maximum at the same time, readjust as Fig. 1
follows.
Record/playback
3. Turn the screw shown in.fig. 2 to find angles A and C (points where peak C head
out put levels for left and right channels are obtained). Then, locate the
angle B between angles A and C, i.e, a point where L-CH and R-CH 7
out put levels come together at maximum. (Refer to figs. 2 and 3.) 2
Screw (B
L-CH/R-CH phase adjustment Fig. 2
4 Make connections as shown in fig. 4.
5. Playback the 8kHz signal from the test tape (QZZCFM). Adjust screw
(B) shown in fig. 2 so that pointers of the two VT VMs swing to maximum
and a waveform as Illustrated in fig. 5 is obtained on the oscilloscope.
L-ch
peak
level
p
oh
peak
level
tg
Fig. 5
Playback LINE ]
Fig. 4
Tape speed accuracy Tape speed accuracy
adjustment
Condition:
* Playback mode
ae ea tet Record/playback
1. Test equipment connection Is shown in fig. 6. aad LINE OUT
2. Playback test tape (QZZCWAT 3,000HZz), and supply playback eee)
signal to frequency counter. oe
seam
Ee
cuisecat:
ee
el
section
of
test
tape.
Playback
mode
tal
RiP
salen
.
t
|
|
|
electronic
counter
leet
eta
“°"
|
5.
On
the
basis
of
3,000Hz,
a
by
following
formula:
Fig.
6
*
Test
tape
---
QZZCWAT
Tape
speed
accuracy
=
aot
x
100
(%)
where, f= measured value
Standard value: 2.5%
_ If measured value is not within standard, adjust tape speed adjustment VR (shown in electrical parts
location), so that frequency becomes 3,000 Hz.
CAUTION: Playback frequency
response table
Playback frequency
response |
Condition:
* Playback mode
Be sure to unplug the headphones while measurements and adjustments.
(Measured values may vary with the headphones plugged in or unplugged.) 125 Hz —1+4dB
1. Test equipment connections is shown in fig. 1. ee 0 dB
2. Playback frequency response test tape (QZZCFM). ai
3. Measure output level at 315Hz, 125Hz, 1kHz, 4kHz, 8kHz and compare | L kHz Epis
each output level with standard frequency 315Hz, at LINE OUT. | 4kHz | —0.9+4dB
4 Make measurement for both channels. Q kHz pees 15+5cdB
5. Make sure that the measured value is within the range specified in the
frequency response table (shown in fig. 7). Fig. 7
Equipment:
*VTVM « Oscilloscope
* Test tape --- QZZCFM

RQ-J6 RQ-J6
CAUTION:
Be sure to unplug the headphones while measurements and adjustments.
(Measured values may vary with the headphones plugged in or unplugged.)
Playback gain
Condition:
* Playback mode
Equipment:
* VTVM * Oscilloscope
« Test tape --- QZZCFM
Output level adjustment
1. Test equipment connection is shown In fig. 1.
2. Playback standard recording level portion on test tape (QZZCFM 315Hz, OdB), and using VT VM
measure the output level at LINE OUT.
. Make measurement for both channels.
Standard value: 0.42V+3dB
Tape speed adjustment VR
Adjustment
lf measured value is not standard, adjust VR3 (L-CH), VR4 (R-CH) (shown in electrical parts location).
L-CH/R-CH output balance adjustment
After adjustment (output level adjustment), make sure that difference between the measured values of
bat that | Vi (V) _ Ve (V)
L-CH and R-CH output level is within 1.548 {71 cH outvut level] =[R-CH out put level] 0:79 dB}.
If not, adjust VR3 (L-CH), VR4 (R-CH) so that the difference is minimum (within 1.5 dB).
E4
VR3
VR4
S1
VR5
Bias current adjustment 1. Test equipment connection is shown in
Condition:
fig.
8.
|
«
Record
mode
Z.
Connect
MIC
terminal
1
or
2
each
.
.
terminal
3
(shown
in
fig.
9).
(L-CH)
Equipment:
4
Place
the
unit
into
the
record
mode.
*
VTVM
5. Read voltage on VT VM and calculate
bias current by the following formula:
Value read on VTVM (V)
10 2
Standard value: 0.75+0.1mA
6. |f measured value is not within standard value, make adjustment by
turning VR5.
Bias current (A) =
VTVM Oscilloscope
Fig. 8
MIC. JACK
C1OSIR-CHlS 2193(R-CH)
(L-CH - R-CH)
ELECTRICAL PARTS LOCATION
REPLACEMENT PARTS LIST
Part Name & Description
ELECTRICAL PARTS
QWY4129Y Record/Playback Head
QWY2146 Erase Head
QMA4222 Switch Angle
QJAA0012 Jack Board
QGT1541 Volume Knob (for VR1)
QGT 1542 Volume Knob (for VR2)
ac,
WM034Z
Electret
Condenser
Microphone
|
QBG1679
Microphone
Rubber
QTSA0016
Shield
Plate
QTD1298 Wire Clamper
XQS14C3FN Screw 41.4x3
XQNI6B3FN Screw #1.6X3
XQN17B28FZ Screw 41.7X2.8
XTN2+6 Tapping Screw 2X6
XTN26+6B Tapping Screw $2.6 X6
XWC2B Washer
E2 E1

2
3
4
*)
6
7
8
SCHEMATIC
DIAGRAM
ee
ERD.
Carbon
ERG...Metal-oxide
CAPACITORS
ECBA ...... Ceramic
ECGD...... Ceramic
ECOF ...... Polypropylene
ECEQ...... Electrolytic
op ]
Q1.2
uetee
INES
Eats
04.5
IC3,
4
Q6
aia
aie
eee
Stl
ECEON
...Non
polar
electrolytic
i
:
QVIBA527
2SA937F
...Metal-film
ee
eramic
ECQS
.2.s6;
Polystyrene
GissunseHinay
or
2SD636H(S)
—r
eon
ones,
HEADPHONES
DRIVE
or
2SA786F
ERX
...Metal-film
ECFO......Ceramic
ECSD
......Tantalum
A
[2SC2021LNF]
aan
ee
ea
Ci?
00082
[2SC2021F]
or
2SB641
ERQ...Fuse
type
metallic
ECQM......Polyester
film
QCS
......
Tantalum
MIC
AMP
pee
POWER
OFF
MUTE
ieoeeelt
ERC
...Solid
ECQE
......Polyester
film
ae
ERF
...Cement
ELECTRET
CONDENSER
MICROPHONE
(L-CH)
MIC
(L-CH)
(L-CH) <*>
RECORD/
PLAYBACK
HEAD
(QWY4129Y)
(R-CH) 7
ERASE
HEAD < )
(awy2146)
R101
Oa]
t[t|1}-O
2.2K
BATTERY
(6V)|
ELECTRET
CONDENSER
O11
[1]1}-o-d
MICROPHONE
RECHARGEABLE
(R-CH)
BATTERY
MIC
Tape
speed
(R-CH)
adjustment
VR
I
¢
MOTOR
GOVERNOR
Jt
(1614)
210)
-
0.03V
}0V
{5.1V
JOV
iy
(2.3V)
|(4.1V)
O
T-
120P
2
on]
MOTOR
+ +
a
ae
-T
eva?
01)
(HCE5S6RV)
O
300
SS
3300P
ular
Popes
SS.
!
eased
ou
een
oe
te
a
Rll2
10K
D2
[MA161]
1SR35200
C108
0.0039
R116
82K
[SM112]
NOTES:
EQUIVALENT
CIRCUIT
e
$1-1—S1-6
......
Record/playback
select
switch
(shown
in
playback
position).
«
(
(>
)
this
arrow
indicates
the
flow
of
the
playback
signal.
IC3,
4
QVIBA
©
$2-1—S2-2
......
Mixing
switch
(shown
in
OFF
position).
¢
(
mm
)
this
arrow
indicates
the
flow
of
the
recording
signal.
,
Q
927
OOS
aie
ina
tiavadebes
Mode
select
swich
(shown
in
STEREO
position).
e
Described
in
the
schematic
diagram
are
two
types
of
numbers;
the
supply
OOF
nce
Aisi
osedmes
Power
ON/OFF
switch
(shown
in
OFF
position).
parts
number
and
production
parts
number
for
transistors
and
diodes.
S.VAR2
occ:
Volume
control.
One
type
of
number
is
used
for
supply
parts
number
and
production
parts
e
VRS,
4.0...
Playback
gain
adjustment
VR.
number
when
they
are
identical.
®
VAS:
casieeteicccds
Bias
current
adjustment
VR.
eg.
Q1,2
¢
Resistance
are
in
ohms
(Q),
1/8
watt
unless
specified
otherwise.
2SC2021LNF(R,S)——
Production
parts
number
K
=
10002.
or
2SD636H(R,S)
¢
Capacity
are
in
microfarads
(uF)
unless
specified
otherwise.
[2SC2021LNF]
Supply
parts
number
P
=
Pico-farads.
D4
¢
All
voltage
values
shown
in
circuitry
are
under
no
signal
condition
and
|
1SR35200
Production
parts
number
record
mode
with
volume
control
at
minimum
position.
(SM112]
Supply
parts
number
ON
S27]
O°? OW
R24
O-~€
C16
(16 (1120)
0.03V OV J5.1v ov
(2.3V) |(4.1V)
1
t 120P puighe
cl4
6v47 1
013 +
~150V1 a
ees Fe ee ee eal ee Ge ee
i aes Se
R17
220K
R16 82K D1
| s1-4
B x
D3
MA27W
or MV121
[MV121]
LINE OUT
(R-CH)
(1)
R203 68k | “4>
@ ww
(AW)
C117 0,0082
However, the voltage in playback mode is indicated in ( ) when it differs
from that in record mode.
For measurement, use VTVM.
VRI R22 2.2(YAW)_ - HEADPHONES
JOK(A) 3.3K
(C) $ — = (8) 2)
C23 *
50V0.22
R124
(7) 2.2 (AW)
1.3V
rT
§
S1-5
LINE OUT
UO® (L-CH)
e
The
supply
parts
number
is
described
alone
in
the
replacement
parts
list.
REPLACEMENT
PARTS
LIST
Ref. No. Part No. Ref. No. Part No.
R125 ERD10TJ561
RESISTORS R126 ERD10TJ681
eeecee “aos ERD10TJ100
R2 ERD10TJ153
R202 ERD10TJ561
R3 ERD10TJ472
R203 ERD10TJ683
R4 ERD10TJ153
R204 ERD10TJ120
R5 ERD10TJ103
R205, 206, 207
R6 ERD10TJ822
ERD10TJ183
R7 ERD10TJ103
R208 ERD10TJ560
R8 ERD10TJ224
R209 ERD10TJ184
RQ ERD10TJ330
R10 ERDIOTJ103._| R210 ERD10TJ103
R211 ERD25FJ181
R11 ERDIOTI202 ‘| R212 ERD10TJ332
es em EP ERD10TJ472
R13 ERDIOTJI24 | OO SPOEGEIEED
R14 ERD101J472 ure
R15
ERD10TJ471
VARIABLE
R16 ERD10TJ823 RESISTORS
R17 ERD10TJ224 | vy EVLE2AT12A14
R18 ERD10TJ181 — | vro EVL2BAT12C14
os ae VR3, 4,5 | EVNM4AA00B23
: ee: CAPACITORS
R21 ERD10TJ103. (| C1 ECFDD332KVY
R22 ERD10T/J332 ‘| C2 ECEAIHKOR1
R24 ERD25FJ2R2 =| C3 ECFDD332KVY
R25 ERD10TJ561 ‘| C4 ECEA1HKOR1
R26 ERD10TJ681 ‘| C5 ECKD1H221KB
R101 ERD10TJ222 | C6 ECKD1H1022F
R102 ERD10TJ153 =| C7 ECFDD152KVY
R103 ERD10TJ472 | C8 ECFDD392KVY
R104 ERD10TJ153 | C9 ECFDD152KVY
R105 ERD10TJ103 | C10 ECFDD102KVY
R106 ERD10TJ822. | Cll ECEAICK100
R107 ERD10TJ103_ | C12 ECKD1H121KB
R108 ERD10TJ224 =| C13 ECEAIHKO10
R109 ERD10TJ330 =| C14 ECEAQJK470
R110 ERD10TJ103 | C15,16 | ECEAICK100
R111 ERD10TJ222 | C17 ECFDD822KVY
R112 ERD10TJ103 | C18 ECEA1HKR33
R113 ERD25TJ124 | C19 ECEAIEK4R7
R114 ERD10TJ472 | C20 ECFDD182KVY
R115 ERD10TJ471 ‘| C21 ECEAQJSS221
R116 ERD10TJ823 | C22 ECEAQJK220
R117 ERD10TJ224 | C23 ECEA1HKR22
R118 ERD10TJ181 | C24 ECEAQJK101
R119 ERD10TJ124 =. | C25 ECKD1H1022F
R120 ERD10TJ153 =| C26 ECKD1H561KB
R121
ERD10TJ103
|
C28
ECEAQJK101
R122 ERD10TJ332 | C101 ECKD1H332KB
R124 ERD25FJ2R2 | C102 ECEA1HKORI
Standard recording input level
Overall frequency response
(LINE OUT)
QSS2224
QSS2224
QSB
QLBO196K
SPECIFICATIONS
QSS8206T
Part No.
Ref. No. Part No.
C103 ECFDD332KVY
C104 ECEAIHKOR1
C105 ECKD1H221KB
C106 ECKD1H102ZF
C107 ECFDD152KVY
C108 ECFDD392KVY
C109 ECFDD152KVY
C110 ECFDD102KVY
C111 ECEAICK100
C112 ECKD1H121KB
C113 ECEA1HK010
C114 ECEAQJK470
C115,116 | ECEA1CK100
C117 ECFDD822KVY
C118 ECEA1HKR33
C119 ECEAIEK4R7
C120 ECFDD182KVY
C121 ECEA0JSS221
C122 ECEAOJK220
C123 ECEA1HKR22
€124 ECEAOJK101
C125 ECKD1H102ZF
C126 ECKD1H561KB
C128 ECEAQJK101
C201 ECEAOJK101
C202 ECFDD682KVY
C203 ECEA1EK3R3
C204 ECKD1H332KB
C205 ECFDD102KVY
C206 ECEA0JK470
C207 ECEAQJK220
C208 ECEA1HKO10
C209 ECEA0JS471
C210 ECEA1CK100
C211 ECEA1AS471
TRANSISTORS
Q1,2 2SC2021LNF
Q3, 4,5 28C2021F
Q6 2SB641
DIODES
D1,2 MA161
D3 MV121
D4 SM112
D5 SLB26UR3
INTEGRATED
CIRCUITS
IC1,2 BA5101
IC3, 4 QViBA527
Part Name &
TCHES
Slide Switch
(Record/Playback Selector)
Slide Switch (Mixing ON/OFF)
Slide Switch
(Stereo/Mono Selector)
Description
0195 Leaf Switch (Power ON/OFF)
MIC:
COIL
Bias Oscillation Coil
1 kHz:
150Hz: —
1 kHz:
6 kHz: =
—7224dB
1.52 5dB
OdB
35-268

8 7 6 5 | 4 3 2 1
CIRCUIT BOARDS AND WIRING CONNECTION DIAGRAM
TERMINATIONS
h> D5 BRN BRN
MAIN CIRCUIT BOARD
ELECTRET
CONDENSER
MICROPHONE
(R-CH) (L-CH)
S3: MODE SELECT
ITC
2SC2021LNF(R,S)
or 2SD636H(R,S)
es
[25C2021LNF]
2SC2021LNF(R,S)
RECORD/PLAYBACK
or
2SD636H(R,S)
7
|
|
coe
HEAD
|
LUG
TERMINAL
[2SC2021LNF]
S
&..
re]
o6v
|
: wg
(Oo SPS Al
PB]
0.6v
WHT
VR2: VOLUME
MOTOR GOVERNOR
CONTROL (R-CH)
CIRCUIT BOARD
IC1
(i
SS
BA5101
nae
=
NS
Lose
a
P4[
0.6V
fiz]
ov
|
=n
Cathode
|
0.01V
3]
5.1Y
|
pave
cheer
Nt
Jao
Cacté<
A
aeienen
UR
=
eiae
ee
ee
0.6V
ie
0.03V
Anode
Cathode
Ca
o+q~
A
D3
Q3
2SC2021LNF(S)
or 2SD636H(S)
[2SC2021LNF]
Cathode
Ca +q~A
\
Q6
Q4,5 2SA937F
2SC2021F(R,S) or 2SA786F
or 2SD636(R,S) 1C3, 4 or 2SB641
[2SC2021F] BA527 a
Ee} OV eG NG) Taw 4 E{ 4.6V |
efosy | [sPeov |slisy | epssv ee
eI BLK ..-.-. Black
BLU ...... Blue
BRN ...--- Brown
GRY -«..--- Gray
BLK GRN .-..--- Green
L. BLU --- Light Blue
NIL .----- No Color Mark
ORG ..---- Orange
PNK ...-.- Pink
WIRE CLAMPER RED ...... Red
SLD .....- Shield Wire
VLT .----- Violet
WHT...--- White
YEL -.---- Yellow
NOTES:
e The circuit shown in on the conductor is B+ (bias) circuit. ¢ Described in the circuit board diagram are two types of numbers; the supply ¢ The supply parts number is described alone in the replacement parts list.
e The circuit shown in on the conductor side indicates printed circuit parts number and production parts number for transistors and diodes.
on the back side of the printed circuit board. One type of number is used for supply parts number and production parts
e Valued indicates in (_——] are under no signal condition and record mode number when they are identical.
with volume control at minimum position. e.g. Q1,2
However, the voltage in playback mode is indicated in ( ) when it differs 2SC2021LNF(R,S)——Production parts number
from that in record mode. or 2SC636H(R,S)
For
measurement,
use
VTVM.
[2SC2021LNF]
Supply
parts
number
[6]

M11
M20
M21
M22
M23
M24
M25
M26
REPLACEMENT PARTS LIST
Ref. No. Part No. Part Name & Description Ref. No.
MECHANICAL PARTS
QXK2310
0601713
XSN2+10
0G01752
XSN2+5
XSN2+4
QTD1163
QMG0098
QBCA0008
QHQ1317
XSN2+10
QTD1293
0MZ1247
OXK2478
OXL1455
QBN1807
XUC2FT
QDc0129
0MZ1248
QBN1767
QBT1902
OML3623
QML3622
QBT1899
XQNI6B3FZ
XQNIG6B5FZ
Erase Head Base Plate Assembly
Record Button
Screw $2 X10
Playback Button
Screw 2x5
Screw H2 x4
Wire Clamper
Tape Guide
Head Spring
Head Adjustment Screw
Screw 2X10
Wire Clamper
Head Spacer
Head Base Plate Assembly
Pressure Roller Lever Assembly
Pressure Roller Lever Spring
Stop Ring 2¢
Tape Counter
Counter Table
Fast Forward/Rewind Lever Spring
Record Rod Spring
Record Rod
Erase Safety Metal
Erase Safety Metal Spring
Screw 41.6X3
Screw $1.6X5
M27
M28
M29
M30
M31
M32
M33
M34
M35
M36
M37
M38
M39
M40
M41
M42
M43
M44
M45
M46
M47
M48
M49
M50
M51
M52
M53
Part No.
QMH2058
0DB0284
OXDO116
0BW2008
QBKA0006
XUCIS5FT
0DG1212
0BT1898
OMR1857
QMR1858
QBT1904
0BT1905
OXR0618
OMP1776
QBC1390
OXL1427
QXR0620
XWE3A7
QBN1768
QML3626
0BT1926
0XA1030
QML3625
QML3638
QBP1519
XSN2+3
QBN1765
Part Name & Description
Rod Holder
Counter Belt
Supply Reel Table Assembly
Snap Washer
Washer
Stop Ring
Gear (8)
Eject Lever Spring
Record Switch Rod-A
Record Switch Rod-B
Switch Rod Spring-A
Switch Rod Spring-B
Pause Rod Assembly
Pause Rod Guide-B
Capstan Spring
Pause Lever Assembly
Eject Rod Assembly
Poly Washer
Pause Lock Plate Spring
Pause Lock Plate
Eject Rod Spring
Circuit Board Retainer Assembly
Cassette Lid-up Lever
Auto Safety Lever
Spring Washer
Screw #2 x3
Head Base Plate Spring
When servicing this mechanism unit, refer to the disassembly notes
and assembly instructions described in the service manuals of
RQ-337, RS-J3, RQ-335A and RQ-J5 (RQ-335 mechanism series).
Ref. No.
M54
M55
M56
M57
M58
M59
M60
M61
M62
M63
M64
M65
M66
M67
M68
M69
M71
M72
M73
M74
M75
M76
M78
M79
M80
M81
M82
M83
QMR1852
0XxB0702
QXB0701
QBT1900
QML3635
QBT1906
QMR1855
QBJA3025
XUC25FT
QXH0365
QML3637
QDG1206
QML3634
OMR1862
QML3632
QXL1374
QXD0115
QXL1377
QXL1378
QXG1049
0DG1210
XUC12FT
QBW2010
QBJA3014
QML3648
QBN1830
QBN1764
| QBC1377
Part No.
Playback Rod
Rewind Button Assembly
Fast Forward Button Assembly
Playback Rod Spring
Cue Lever-B
Rewind Rod Spring
Fast Forward/Rewind Rod
Washer
Stop Ring
Button Holder Assembly
Switch Lever
Gear (2)
Idler Driving Lever
Lock Release Rod
Auto-Stop Detection Lever-B
Auto-Stop Detection Lever-A
Takeup Reel Table Assembly
Fast Forward Lever-A Assembly
Fast Forward Lever-B Assembly
Fast Forward Gear Assembly
Gear (6)
Stop Ring 1.2¢
Washer
W
Gear Lever
Gear Lever Spring
Fast Forward Lever Spring
| Stop Button Spring
M84
M85
M86
M87
M88
M89
M90
M91
M92
M93
M94
M95
M96
M97
M98
M99
M100
M101
M102
M103
M104
M105
M106
M107
M108
M109
M110
M111
Part Name & Description | Ret No | Part No.
0BT1901
QXR0619
QXB0695
XWE2A7
QXL1375
0BN1763
0XK2313
0DG1205
OXFO166
0DB0283
0DG1207
0DG1208
0DG1209
0BW2030
OXi0114
QXL1387
QBN1762
0BT1903
OMCO106
HCE5S6RV
QMC0107
0BG1678
XWA2B
QBW2042
0BJ3098
QBCT0010
QTDA0004
XWG2B
Part Name & Description
Lock Plate Spring
Lock Plate Assembly
Stop Button Assembly
Washer
Cue Lever-A Assembly
Cue Lever Spring
Lower Base Plate Assembly
Gear (1)
Flywheel Assembly
Flywheel Belt
Gear (3)
Gear (4)
Gear (5)
Washer
Takeup Idler Assembly
Idler Lever Assembly
Idler Spring
Pause Lock Spring
Collar
Motor
Motor Collar
Motor Rubber
Washer
"
Back
Tension
Spring
Lug
Terminal
Washer
SPECIFICATIONS
Pressure of pressure roller
300 +508
Takeup tension
~* Use cassette torque meter
© es QZZSRKCT
|
--
407 13 g-cm
Wow and flutter: JIS
* Use test tape --- QZZCWAT
Less than 0.5%
(RMS)

G1-1
G1-2
REPLACEMENT PARTS LIST
Ref. No. Part No.
[| QYMA0143H
* For all European areas.
QYMA0144H
CABINET PARTS LOCATION
Part Name & Description
CABINET PARTS
Main Case Assembly
#
* For Australia. Asia, Lattin America, Middie East and Africa areas.
QYFA0030H
QBN7004
QBP1377
XTN26+6B
QYPA0019
OYDA0001H
QYQA0013
QKMA0047H
OKJA0034
QGKA0101
X$$2+6BV
XSN2+20FV
XTN26+26CFZ
QGSA0063
Cassette Lid Assembly
Cassette Lid Spring
Lid Holding Spring
Screw 4)2.6X6
Front Panel Assembly
Battery Case Assembly
Battery Case Hoider
Bottom Case Assembly
Switch Shelter
Microphone Net
Screw H2X6
Screw +2 X20
Tapping Screw + 2.626
Main Name Piate

HEADPHONES PARTS LOCATION
Stereo Headphones: RP9506XE
* For all European areas.
REPLACEMENT PARTS LIST
| ACCESSORIES
Al WI RP9515XN _| Stereo Headphones Assembly
Al-1 {Ml} QYQ0303 ' Headphones Arm Assembly
Al-2 (A) QKJ0495 Pressure Plate
Al-3 (|) QKs0496 Stopper
Al-4 (NIA) QYQ0304 Unit Holder-L
Al-5 = (MA: QYQ0305 Unit Holder-R
Al-6 [i QkKJ0509 Housing-L
Al-7 ° (NI) QKJ0510 Housing-R
A1-8 [NB QYM0725 ' Speaker Assembly
Al-9 (| QBM1302 - Cushion
Al-10 (A) QBM1303 | Ear Pad
Al-11 (Al) QBG1723 | Cord Protector
Al-12 QEBO151 Headphones Cord
%* Al (A1-1—A1-12) For Austraha, Asia, Latin America, Middle
East and Africa areas.
A2 [| RP9506XE Stereo Headphones Assembly
Part Name & Description
Part No. | Part Name & Description Ref. No.
NE
* For Aus
Headphones Arm Assembly
EAHEAS2P03SC | Speaker
Headphones Cord
-1—A2-5) For all Eu
Demonstration Tape
* For Australia, Asia, Latin America, Middle East and Africa areas.
%* For Australia, Asia, Latin America, Middle East and Africa areas.
aa
* For all European areas.
A1-10
ASA
Y.M
QQT3078
Ret. No. | Part No.
ym
io,
Part Name & Description
Instruction Book
tralia, Asia, Latin America, Middle East and Africa areas.
Stereo Headphones: RP9515XN
* For Australia, Asia, Latin America,
Middle East and Africa areas.
[| QPNAQ135
* For all European areas.
QPNAO131
* For Australia, Asia, Latin America, MiddJe East and Africa areas.
| QPAA00S7 Cushion (Lower Side)
* For all European areas.
[El| QPAA0058
%* For al! European areas.
IN| OPAA0059
% For Australia, Asia, Latin America, Middie East and Africa areas.
IN! QPSA0024
%* For Austratia, Asia, Latin America, Middle East and Africa areas.
XZBI6X28A02 | Poly Bag (for UNIT)
E
| Inside Carton
| Cushion (Upper Side)
A Printed in Japan