Panasonic RQ-SX44 User manual

ORDER NO. AD9502046C2
ervice Manual
DO feousy ene]
AR90 (ARSOIV) MECHANISM SERIES
SPECIFICATIONS
Battery; DC 1.5V one “AA” size (LR6)
battery (not included)
(Panasonic R6, LR6 or equivalent not
included)
Rechargeable Battery; DC 1.2V with
an included Panasonic Rechargeable
Battery
(RP-BP62EYS$1) x 4
5mW+5mW...RMS (max.)
Headphones; 16Q (mini jack $3.5)
Power Requirement:
Power Output:
Output Jack:
Dimensions: (W x Hx D) 108.0 x 75.6 x 21.0mm
Weight: - 190g (with rechargeable battery)
Mi CONTENTS
LOCATION OF CONTROLS. .........ssssssssesssesseessnesseseresnsesseneenenseeenene
POWER SOURCES. .....esccsscsenesssnsessssssneesesensatsesseasseeeseeesees
BEFORE USE ..........scscsccssssssssessneneresnscnesneesenssenenscerseseenses
REMOTE CONTROL OPERATION.. sas
ACCESSORIES ....scsssssssssssssssssssesscssnsssoenusrecsnensnetaverseanensnseentseeserarses
PROCEDURE FOR THE REPLACEMENT
OF THE MECHANISM BLOCK .........csssssssececssesesessesssnenseeneets 5
Panasonic
Stereo Cassette Player
Mini Cassette
RQ-SX44
Colour
(K)... Black Type
Area
Suffix for
© | ee
(EB) Great Britain.
+ Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“Dolby” and the double-D symbol are trademarks of
Doiby Laboratories Licensing Corporation.
Charger: (E) Input; AC 220V, 50Hz, 4W
(RP-BC155EY-0) (included)
Output; DC 1.2V, 350mA
(EB) Input; AC 240V, 50Hz, 4W
(RP-BC155EBYA) (included)
Output; DC 1.2V, 350mA
Frequency Range: 15~20,000 Hz (with a normal tape)
(—6dB) 15~20,000 Hz (with a CrO, tape)
15~20,000 Hz (with a Metal tape)
Motor: Electrical governor motor
Track System: 4-track 2-channel stereo playback
Tape Speed: 4.8cm/s
' Note: Design and specifications are subject to change without
notice.
Weight and dimensions are approximate.
Page
PRINTED CIRCUIT BOARDS AND
WIRING CONNECTION DIAGRAM .......scsessceseccssncesnnees 17, 18
SCHEMATIC DIAGRAN .............-:0ccces00 we 18~21
BLOCK DIAGRAN................. sodastavacudduiabvsiteatsiucondstQevisvanoeesssevesuce 18
REPLACEMENT PARTS LIST........ » 22, 24, 27
RESISTORS AND CAPACITORS ..........:cc0csssessssssnsessssssseessenee 23, 24
PACKAGING i ciseiccsccccvitacosssssassadnidudecesncstcetucsentenceasaensssevcetscsetcesvusacce 24
CABINET PARTS LOCATION......... wae 25
MECHANISM PARTS LOCATION...............-0:2:ssessnsssosssssasssaussoee 26
SUPPLY OF RECHARGEABLE BATTERY
AS REPLACEMENT PARTG..........:.sscssestssssssnscssscnsesssesessrsneee 28
CAUTION IN USE OF RECHARGEABLE BATTERY..........0.:.00 28

RQ-SX44 |
Mi LOCATION OF CONTROLS
mi
POWER
SOURCES
This player can operate on any of 2 different power
sources:
1. Rechargeable battery (included)
2. Dry cell battery (not included)
Rechargeable battery
For its initial use after purchasing or after a long
time interval (more than three months), be sure to
recharge the rechargeable battery.
Normally 2 hours recharging will give approxi-
mately 6 hours tape playback (at 25°C).
However, playback time may become shorter de-
pending on the operating conditions, e.g. repeating
fast-forward or rewind, etc.
1 Recharge the rechargeable battery.
@For UK, the shape of the charger is different.
2 Insert the charged battery into the unit.
Dry cell battery Bi
1 insert one R6/LR6 battery (UM-3 or equiva-
lent, not included) into the battery case.
2 Attach the battery case to the unit.
3 Turn the screw until it locks.
@ To extend the playback time
Install both types of battery (rechargeable and dry
cell battery) in the unit.
Mi When the battery becomes weak
The OPR/BATT indicator will dim or turn off. Re-
charge the rechargeable battery or replace the dry
cell battery with new one.
Use time indicator
This unit adds up the total time hours since install-
ing a battery. For example, when the unit has been
operated about an hour, display shows “USE TIME
{4 after about 2 hours display shows “USE TIME
oH ”, and so on. The battery life may differ accord-
ing to the condition of batteries used.
Notes:
@ Play time may be shorter depending on the oper-
ating conditions, e.g. repeating fast forward or
rewind etc.
Use time indicator will reset to zero when both
batteries are removed.
3 (hours)
>

Mi BEFORE USE
Connecting the stereo earphones
Unless the earphones are firmly inserted.into the 9)
jack, the sound may become intermittent, or, oper-
ation using the remote controller may become im-
possible.
The size of the earpiece can be adjusted.
When it’s too loose in the ear, turn the fitting ring
(@) to ©, when it’s too tight, turn to ©.
When not using the stereo earphones, slide up the
slider (@) to prevent entanglement of the cord.
Concerning the hold operation
w@ Main unit (Auto Hold)
This unit is equipped with an auto hold system
which makes all control buttons inoperable. To re-
lease the hold state, simply touch any button.
Press buttons only with your fingers.
Note:
Keep the buttons clean and dry otherwise the auto
hold system may not work properly.
m@ Remote control 9
eTo prevent unwanted operation
You cannot activate remote control buttons when
the HOLD switch is set to HOLD (hold state). Be-
fore using remote control buttons, release the hold
state. When the unit is in the hold state, the display
shows HOLD.
How to attach the cord clip
@Attach the clip to the cord protruding from the top
of the remote control (earphone side) for use.
@In order to prevent the cord from being damaged,
do not slide the clip along the cord once it has
been attached.
RQ-SX44
Las | meeda|
Cry) | CCrHOI)
To release To hold
Mi REMOTE CONTROL OPERATION
You can change the tape operation or tone quality
with remote control buttons.
Before using those buttons, plug the stereo ear-
phones into the () jack and be sure to release the
hold state.
To change the tape operation
Press the multi operation button. €¥-@)
°: Press once to play and stop.
@: Press and hold to change the direction.
ee: Press twice for fast forward.
eee: Press three times for rewind.
@When pressing the button twice or three times in
succession, press it within one second and at
equal interval.
When it is pressed twice or three times during
play, play will start from beginning of the tape
(opposite or the same side).
Confirmation beep can be heard as shown on the
figure.
To find the beginning of a song
(TPS: Tape Program Sensor)
Press + or — once, twice or three times during
playback.
+: You can skip forward.
~: You can skip backward.
To adjust the volume
Before using the VOLUME on the remote control,
be sure to adjust the volume control on the main
unit to “5-7” position.
Beep Beep Beep
Beep Beep
Bee...p Beep
Beep Beep Beep Beep Beep
(SKIP REVERSE) | [(REWIND AUTO PLAY)

RQ-SX44
To change the Tone
@ To enjoy the amenity sound
(ASC EQ)
Every time you press ASC EQ the tone will change
as follows in turn. (@ Indicates the tone.)
Confirmation beep can be heard.as shown on the
figure.
S-XBS:
Boosts the low frequency range.
@if the sound distortion occurs, turn down the vol-
ume.
TRAIN:
Gives a more natural quality to the sound and
reduces strain and fatigue when you listen for long
time.
It
also
cuts
down
the
audible
level
of
sound
Beep
Beep
which disturbs people around you.
LIVE:
:
S-XBS
|—j}
TRAIN
|—>|
LIVE
Adds gloss to the vocal.
eThis function may not be effective according to (VMSS ON)
the source.
@ To enjoy the virtual motion sound 9 Beep
(VMSS)
It boosts the low frequency range. Also, the vibra-
tion
of
the
earpieces
of
the
included
earphones
“|
(VMSS
OFF)
makes sound vigorous.
Set the VMSS selector to ON.
Raising the volume level using the VOLUME con-
trol on the main unit intensifies the VMSS effect.
eThe VOLUME control. on the remote control can
not be used to change the VMSS effect.
eVMSS may not effective according to the source.
When the VMSS selector is set to ON while ASC
EQ is canceled, S-XBS automatically appears as
the sound quality display.
To repeat a current song
(ONE-REPEAT)
Press and hold ASC EQ on the remote control
during play.
@ To cancel the ONE-REPEAT
Press and hold ASC EQ once more.
ONE-REPEAT is also cancelled when tape opera-
tions are switched.
VMSS OFF ¢* ON
Mi ACCESSORIES
A B a
Stereo earphones with Rechargeable battery... 1 pc. Battery case ........... 1 pe. Cord clip..............- 1 pe.
remote controller....... 1 pe. (RP-BP62EYS1) (RFA0474-k) (RFA0574-kK)
(RFEV126P-KS)
Chaldehiisissease sti aa tavern t bie ee eae ofa tah Stat 1 pc. Carrying bag........... 1 pe. Rechargeable battery
(RP-BC155EY-0): (E) (RP-BC155EBYA): (EB) (RFC0027-k) carrying case .......... 1 pe.
: ; (RFA0475-Q)
—4—

| RQ-SX44
Wi PROCEDURE FOR THE REPLACEMENT OF THE MECHANISM BLOCK
¢ How to replace the mechanism block
The mechanism block is supplied without other parts as a semi-assembly. The head block, motor and belt are
supplied separately from the mechanism block.
If the mechanism block is exchanged as a replacement assembly, follow the preparation procedure below.
Preparation procedure
Remove the head block, motor and belt from the mechanism to be replaced and replace those parts to the new
mechanism block.
(Refer to the “OPERATION CHECKS AND MAIN COMPONENT REPLACEMENT PROCEDURES”)
Mechanism block
Fig.
1
Fig.
2
Note: The adjustment of the mechanism block is unnecessary after replacement.
¢ How to replace the head block
The head and pinch roller are supplied together in the head block. The pinch roller is also supplied separately.
Preparation procedure
The head block for replacement is not supplied with a holder as shown in the figure below. Therefore, remove the
holder from the block to be repaired and mount it to the new head block. Then, proceed to replace. the head block.
(Refer to the “OPERATION CHECKS AND MAIN COMPONENT REPLACEMENT PROCEDURES”.)
Holder (to be removed from the section tg be repaired)
Fig. 3
Note: Head azimuth adjustment is unnecessary.

RQ-SX44 |
ll
OPERATION
CHECKS
AND
MAIN
COMPONENT
REPLACEMENT
PROCEDURES
\(ext=8 = 1. This section describes procedures for checking the operation of the major printed circuit
boards and replacing the main components.
2. For reassembly after operation checks or replacement: reverse the respective procedures.
Special reassembly procedures are described only when required.
3. Illustrated screws are equivalent to actual size.
4.[ ] indicates parts No.
e Contents Page.
1.Checking for the P.C.B, see cececcccccccccccccccccccccecvecccssasccscscsccscsescsscnes 6,7.
2.Replacement for the motor and belt. CROSSES SHHSSSSSSCESE SESE EEEHOH HSE EEE HEEH EHH HEHEHE OOE 8.
3.Replacement
for
the
cassette
lid(A)
ass'y
and
cassette
lid
(B)
ass'y*esesrereecsceeccscccccccoccces
B11,
4.Replacement
for
the
head
block
ass’y
and
pinch
roller
arm.
**eecccsssessceeccccccccsccccsoocccs
12,13,
5.Replacement
for
the
intermediate
ornament(B),
intermediate
ornament(C)
and
side
ornament.
***sessereee
13,14.
1. Checking for the P.C.B.
Remove the 6 screws.
Remove the cabinet ass’y.
Remove the 2 ribs.
Thin tip minus
screwdriver
Unless releasing the rib,
the rib may be amaged
when removing the cabinet ass’y.
* Check the P.C.B.(Front side) —
in this condition.
Removal for checking the P.C.B.(Back side)
exp oO
Store the rechargeable battery.
Cre The rechargeable battery )
should be recharged fully.
3 When the P.C.B. is removed, the rechargeable
battery terminal(+) will also be removed.
@= 0 @m ©
[RHE5155YA] [RHE5169YA]
@> Oo §>O
[RHQ0027 - K] [RHE5119ZA]
% Rechargeable
battery terminal(+) Soller(/ points)

RQ-SX44
¢ Check the P.C.B.(Back side)
in this condition.
/ Headphones jack
Connect the extension cord
to the motor terminals with solder. Black
Red os
White
ae
Rechargeable
battery
: terminai(—) foil
Rechargeable battery ———“='ff
terminal(+)
Extension
cord
wy
fj
Plunger
arm
(pull
it
in
(RFKZ0002)
Y
the
direction
of
arrow.)
Connection terminal
Power
supply
Ba
NN
\
SS
¢
”
Plunger
C
1.5)
'
Rechargeable
battery
terminal(—)
(Mechanism
earth)
iS)
li Short Points es This diagram shows a front view of the IC4
¢ Solder the short land to shrot the circuit. mounting surface.
Short the short land @ . ' : Short the short land ©. Short the short land ©
(Back side) 2G as oe (Back side) (Back side)
(Gauge No. D-3) BE _ (Gauge No. E-4)
‘a
ie
He
Short the short land ©
(Back side)
(Gauge
No.
E-3)
Short
the
short
land
©
er
Ss
'
Back
side)
»
Short
the
short
land
©
(Back
side
(
1%
3
(Gauge
No.
E-3)
®
(
)
(Gauge
No.
F-4)
5
A
Short the short land ©
Short the short land ® (Back side) (Back side)
(Gauge
No.
E-3)
(Gauge
No.
F-4)
Mechanism Mode Setting
* Manually operate the plunger arm when checking the PLAY/STOP operation.
* Manually pulling the plunger arm once sets the FWD mode; twice, REV ; and, three times, STOP.
Kreis
1. Operate the plunger arm manually. Even if the operation buttons pressed, the plunger will not be actuated.
2. Even if the mechanism unit is switched to the FWD mode, the head change — over switch (IC1) will remain
in the REV position, so set the REV mode to check the audio.
Before checking the operation problems and adjustments, be sure to release the hold state. (With the stereo earphones)
3. After checking, unsolder the short land@,®,©,0,©,® ,@and @.

RQ-SX44
2. Replacement for the motor and belt
¢Follow
GSD
~
,
SEED,
EDPin
item
1
on
page
6.
Remove
the
washer.
fa)
r Belt
ie [RDV0003]
Remove the
intermediate ornament (A) ff
Upset the set
installing the belt
¢ When install the belt to motor, push up the motor by
insert the non- magnetic material sheet between
bottom of the motor and the chassis, and install the
belt between top of the motor and the coil P.C.B..
oe ©
[XQS14+A18FZ]
+t Top of
the motor
Coil P.C.B.
Bottom of the motor
Widening ey
Chassis
Sheet of
non- magenetic material
(0.2mm~0.3mm thick)
3. Replacement for the cassette lid (A) ass’y and
cassette lid (B) ass’y
Follow GaaaD ~ in item 1 on page 6.
When removing the screws, the parts as shown
below are removed.
Cassette lid (A) ass’y
[RFKLQSX44E- Kk]
Holder plate
Link plate unit(L)
Remove the cassette lid ass’y
Cassette lid (B) ass’y
[RYF0302- kK]
@= 0 @& ©
[RHD14008-K] [RHQ0035- K]

RQ-SX44
Assembly procedures for the cassette lid (A) ass’y and cassette lid (B) ass’y after replacement
Temporarily
install the holder plate to
cassette lid (A) ass’y. Dual adhesire tape
[Side L] or adhesire agent
[Side R]
Cassette lid (A) ass’y
Dual adhesire tape
or adhesire agent
[Side R] [Side L]
Projection Projection
i legs=3 Take care the plates are in the correct direction
when installing. (Refer to above)
Fix
with
screws.
BB
Link
plate
unit
(L),(R)
shaping
» Link plate unit(L)
Tip of screw
Holder plate
Put the screw into the hole @.
@ 0
[RHQ0035- K]
Link plat it (R
Hold the link plate unit (L). a
Groove @)
Projection of link plate unit
2 7 Tip of screw
Projection of link plate unit
Groove
Cassette lid (B) ass’y [Side L]
Cassette lid (A) ass’y
ep
Install the cassette lid (B) ass’y to the cassette lid (A) ass’y
* Align the groove @) of cassette lid (B) ass’y with the projection
of link plate unit (L).
« Align the groove ©) of cassette lid (B) ass’y with the tip of screw.

RQ-SX44 |
\ [Side LI
[Side R]
Link plate unit (R)
Cassette lid (A) ass’y
Install the cassette lid (B) ass’y
with link plate unit (R) to the
cassette lid (A) ass’y.
Link plate unit (R)
Projection
Casseite lid (B) ass’y
Groove ©
Align the projection. of link plate unit (R)
with the groove © of cassette lid (B) ass’y.
Link plate unit (R)
Cassette lid (B) ass’y
Move the link plate unit (R)
in the direction of arrow,
and then align the holes
of cassette lid (A) ass’y
with the holes of link plate
unit (R) to tighten with screws.
@ O
[RHQ0035- K]
Install the intermediate ornament (A).
Cabinet ass’y