Sony TCS-350 User manual

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TCS-350
FEATURES
® Complete stereo recording and playback system
in this very compact cassette-corder.
® Built-in one point stereo microphone and an
external microphone jack (stereo) for stereo
recording.
@ Stereo playback through the supplied stereo
headphones.
1-1. PARTS IDENTIFICATION
See photo [E] on the back cover.
@ PHONES (headphones) jack
MIC
(STEREO)
@ VOLUME control
© Built-in microphones (R and L)
© Tape counter and reset button
@ REC/BATT (record/battery) indicator
@ @ REC (record) button
@ 4 STOP/EJECT button
(microphone) jack
SECTION 1
OUTLINE
© WPLAY (playback) button
@ PAUSE switch
@ 4 REW/REVIEW (rewind/review) button
® Bf FF/CUE (fast forward/cue) button
@®
Carrying
strap
attachment
(See
the
iHustration
F
on
the
back
cover)
® DC IN 6 V (external power input) jack
® Cassette holder
@® PB EQ (playback equalizer) selector
—2—

Type:
Driver Units:
Impedance:
Sensitivity:
Rated Power:
Power Handling
Capacity:
Frequency Response:
Plug:
Cord Length:
Weight:
MICROFILM
Dynamic
23 mm dia., dome
25 ohms at 1 kHz
100 dB/mw
0.04W
0.1W
20 — 20,000 Hz
Stereo mini plug
Im
26 g (without cord)
SPECIFICATIONS
Type:
Unites:
Impédance:
Sensibilité:
Puissance nominale:
Puissance admissible:
Réponse en fréquence:
Fiche:
Longueur du cordon:
Poids:
Dynamique
Membrane déme de 23 m diam.
25 ohms a 1 kHz
100 dB/mWw
0.04 W
0.7 W
20 — 20,000 Hz
Fiche mini format stéréo
1m
Env. 26g (sans fe cordon)
®
SERVICE MANUAL

1. DISASSEMBLY
DEMONTAGE
Note: Follow the disassembly procedure in the numerical order given.
Suivre la procédure de démontage dans l’ordre numérique donne.
1-1. DRIVER REMOVAL
RETRAIT DE L’UNITE 0
L. . earpad
‘oreillette
precision screwdriver
tournevis de précision
2. REPLACEMENT
REMPLACEMENT
(1) (2)
ya a slide ball 6
wa bille coulissante
ec — a
UU 8} ice
yy ox housing
carter
head band
serre-téte
Push the slide ball
into the groove.
Pressure la bille
coulissante dans
la rainure.

WIRING DIAGRAM
SCHEMA DE CONNEXIONS
rouge
shielded
blindé mark
repere
mark - ;
repére white GN
blane A
LS
4. PARTS LIST
LISTES DES PIECES
GENERAL SECTION
Part No. Description
BUSHING
HOUSING
STOPPER, SLIDE (L)
1 = 2-373-015-00
2 2-376~313-00
3. 2-376-315-00
4 2-376-316-00 (BROWN) ... PAD, EAR
or
4 (ORANGE) ... PAD, EAR
5 2-376-317-00 BALL, SLIDE
6 2-376-318-00 STOPPER, SLIDE (R)
7 @.2-376-319-00 HEAD BAND
8 4-865-916-00 SCREEN (D)
ELECTRICAL PARTS
No. Part No. Description
501 1-556-803-00 CORD
502 1-505-058-11. DRIVER
© Items marked “6” are not stocked since they are seldom
required for routine service. Some delay should be anti-
cipated when ordering these items.
@ Les piéces avec une marque "@’ ne sont pas stockeés
parce qu’elles sont rarement nécessaires pour un dé-
pannage de routine. Si -nécessaire, demander les piéces en
indiquant le numéro; seulement il faut s‘attendre a un
certain retard a la livraison.
MDR-W3~

MDR-W3
5. EXPLODED VIEW
VUE ECLATEE
@ See the parts list for these part numbers and
descriptions.
e Se référer 4 la liste de piéces 4 la page 3
pour les numeros de piéces et descriptions.
Sony Corporation
Consumer Products Group
Technical Support Dept.
9-951-131-11 ee
English
French
83B06234-1
Printed in Japan
© 1983

TCS-350
TCS-350
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
1-2. BLOCK DIAGRAM
CASE (B)
f 14 (TYPE 2)
PTT2.6x 6
PTT2.6x6
PTT26x6
case (B)
AQ
‘SOdb
1,
(94
NOILWNOIS3G
931)
7
(
QHOW,
944
YO
)
Md
‘44
‘AWId
NI:
NO
yaMOd
pOES
YSN AdS
106
dS
[_sanokd ]
20er
WV,
ISL
UBL
IVa
AYO
1lOZd
yas
Aiddly
(A9)
+98
The speaker is replaceable by removing the case (B).
(Aes)
+8
coed
SLAW
YAMOd
LYViS—
dOls
3Snvd
(A6'S)
0S
+8
@ PTT26x5
3 @
1s) a
o7
s 3 %
AUDIO BOARD
UPPER PANEL,
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a ge
t
TCS-350 TCS-350
FLYWHEEL (A), (B)
CASE (A), CONTROL PANEL FF IDLER LEVER FWD IDLER
@PTT26x6
FF idler lever
stopper washer
FWD idler
case (A)
flywheel (B)
washer
button.
control panel
LOCK PLATE REC-FF LEVER, REW iDLER LEVER
cee
re el
@ REW idler lever
TAPE GUIDE, ERASE HEAD
SERVO BOARD, REEL BEARING
P3x
2
lock
plate
OP2x4
ES slider
EJECT lever
@ servo board
tape guide
|
FF lever
reel bearing

TCS-350
TO HOOK EACH TORSION SPRING
EJECT lever
spring
REC/PB head
spring
spring
spring

SECTION 3
ADJUSTMENTS
TCS-350
3-1. MECHANICAL ADJUSTMENT
PRECAUTION
Clean the following parts with a denatured- . Do not use a magnetized screwdriver for the
alcohol-moistened swab: adjustments.
record/playback head pinch roller . After the adjustments, apply suitable locking
erase head rubber belts compound to the parts adjusted.
capstan idlers The adjustments should be performed with the
Demagnetize the record/playback head with a rated power supply voltage unless .otherwise
head
demagnetizer.
(Do
not
bring
the
head
;
noted.
'
demagnetizer close to the erase head.)
Torque Measurement Flywheel Thrust Play Adjustment
Forward 2, asec
C0-1028 (0.32 — 0.67 oz-inch) dc ammeter
: 2-4 g-cm
6Vdc: =}.
Fast Forward 201 more than 70 g-cm
and CQ-201B (0.97 oz-inch) terminals of the
Rewind battery case
Tape
Tension
Measurement
.
Loosen
the
two
adjustment
screws.
_ | 2. Tum one of them clockwise carefully.
CQ-403 more than 130 g (4.58 02) 3. Stop turning it when the current suddenly increase
and loosen it % turn.
4. Adjust the other screw in the same way as step 2
and 3.
5. Secure the adjustment screws with locking com-
pound.
—