Sony tcm 87 service manual
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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.