Sony tcm 83 service manual

Page 1

TCM-81/83/8'l

SERVICE MANUAL

US Model
E Model

TOM-81

Canadian Model

TOM-83

AEP Model
UK Model

TCM~83/ 87
Photo : TCM-87
Model Name Using Similar TCMVII, 31
Mechanism TCMv13. 33
. TCM»81 MT-81-l3
Tape Transport Mechanism Type
TCM783/87 MT'83vI3
SPECIFICATIONS
Recording system 2-track lvchannel monaural Battery life Battery Recording hours
Frequency response ISO-6.000Hz Son batter
Speaker Approx. 4cm (1%inches) dia Slez-S (N3; Approx 4
Power output (DC) ISOmW (at 10% harmonic distortion) Son alkaline battery
Input (except Tomes/87) AM; (N) Approx. 12
Microphone Input/Jack (mlgljack) NC-AA Rechargeable A 4
sensmvrty 012'." for 8k or lower banew (TOM-87) porox.
Impedance microphone
Output Earphone jack (minijack) for 8~3OOQ Dimensions TCM78I :Approx.
earphone 1363X 948 X40.5mm (w/h/d)
Power requirements 3V DC. two R6 (size AA) batteries (5%X3%><1%inch65)
two NCvAA rechargeable batteries TCM-83/872Approx.
(1.2V) (supplied to TOM-87). DC lN 137.2X94.8><40.5mm (w/h/d)
3V jack accepts : (SI/1X3% X 1 %inches)
. Sony ACVDZM AC power adaptor incl. projecting parts and controls
(not supplied). or the AC power Weight TCM-81 :Approx 2519 (8.9 oz)

adaptor supplied to TCM-87 for use

on I
AEP 220V AC, 50H:
UK 240V AC, 50H:

. Sony DCCv7O car battery cord (not
supplied) for use with 12V car
battery

TCM783/87 : Approx, 2529 (8.9 oz)
incL batteries

Battery tube (1), AOpower adapter (1)
(TCMV87 only).

Battery charge adaptor (1) (TOM-87
only). Rechargeable battery (2) (TCM»87
only)

Design and specifications subject to change without notice.

CASSETTE-CBRDER

SONY.

Supplied accessories

Page 2

TOM-81 83/87 I

Note

This appliance conforms with EEC Directive 87/ 308/ EEC
regarding interference suppression.

Note :

If an AC power adaptor or a car battery cord not
manufactured by Sony
installed in the battery cord and the polarity of the

is used, a fuse must be

plug must be as illustrated.

M

o-a-n- o- in- i»-- -4) ---»- 9.4;) o--.) -. --- n -a-4 - ..at our- no--. .-« --- iy-'-w on o -.n.. -.-n -4.-.n-«-»- w- .«i»-n -4»

SECTION 1
GENERAL

PARTS IDENTIFICATION

DE

This section is extracted from
instruction manual.

[El EAR (EARPHONE) lack
E} Built-In microphone

II] Tape operation buttons
0 REC (record)IV PLAY/I STOP] ¥ FF/CUE (fast
forward/cue)! f HEW/REVlEW (rewind/review)

E PAUSE switch
IE) Hand stmpCrcM-aa/W)

TAPE COUNTER and reset button (TcM83/57)
For indexing the tape contents. Before recording
push the reset button to set the counter to 000".

El Cassette holder

IE Speaker (lront)

E] MIC PLUG IN Powen (external microphone)

[E be IN a v (axtemal power Input) lack (right side)
IE Battery compartment (right side)

now- s--- o- --.«-n o.. nr---ai -4 o m -o---¢ o--w-m---n -o-o-n --OcooHovo~rooo¢¢wowo4>o~4 -4)- .---¢ -0-»-nom-

SERVICE NOTE

- Repairing printed resistor
Cut both sides of the resistor and solder the
carbon resistor having same value in place of
printed one of the conductor side.
l/32W carbon resistor is supplied for the

replacing part of the printed resistor.

Notes on chip component replacement
- Never reuse a disconnected chip component.

0 Notice that the minus side of a tantalum capacitor

may be damaged by heat.