Sony tcm 73 service manual
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Page 1
SERVICE MANUAL
US Model
E Model
TCM-71
Canadian Model
AEP Model
UK Model
Recording system
TCM73
Model Name Using TOM-11. 31
Similar Mechanism Set TCMa13. 33
T T M h g S TOM-71 MT~71A13
t t
ape ranspor ec anlsm e TOM-73 MT-73-13
SPECIFICATIONS
~2-track Ichannel monaural
Frequency response 150 - 6.000Hz
Speaker --------------------- Approx. 4.5cm (17/.5 inches) dia.
Power output (DC) ~~160mW (at 10% harmonic distortion)
Output ------------------- Earphone jack (minijack) for 8-3000
earphone
Power requirements---3V DC, two R6 (size AA) batteries
DC IN 3V jack accepts:
0 Sony AC»DZM AC power
adaptor (optional) for use on:
US. Canadian model 120V AC.60HZ
UK model 240V AC.50Hz
AEP model 220V AC,50HZ
E model 120V AC,6OHZ or 220V AC.50Hz
- Sony DOC-7O car battery
car battery.
Battery life (hours)
cord (optional) for use with 12V
Battery
Recording
Sony battery SUM-3 (NS)
Approx. 4
Sony alkaline battery AM3
(N) Approx. 12
Dimensions
Weight
TOM-71 :
Approxi 94.1 X136.4>< 37.1 mm (w/h/d)
(3% X5% X1 /2 inches)
TCM-783 :
Approx.94,1 X1311 X37.l mm (w/h/d)
(3% X5/2 X 1 1/2 inches)
incl. projecting parts and controls
Appr50x. 2609 (9202)
incl. batteries.
Supplied accessory Battery tube (1)
Design and specifications subject to change without notice.
by Sony is used, a {use must be installed in the battery cord
and the polarity ol the plug must be as illustrated.
Note: It an AC power adaptoror a car battery cord not manufactured f i/
CASSETTE-BURDER
SONY;
Page 2
TOM-71 / 73
PARTS IDENTIFICATION
SECTION 1
GENERAL
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EAR (EARPHONE) jack
Built-in microphone
Tape operation buttons
0 REC (record) /V PLAY/I STOP/¥ FF/CUE (fast
forward/cue) / tREW/REVIEW (rewind/review)
PAUSE switch
Speaker (rear)
Handstrap (TOM-73)
Tape COUNTER and reset button (TCMV73)
For indexing the tape contents. Before recording push the
reset button to set the counter to OOO'K
VOLUME control
Cassette holder
DO IN 3V (external power input) jack (right side)
Battery compartment (right sidE)
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SERVICE NOTE
0 Repairing primed resistor
may be damaged by heat.
Cut both sides of the resistor and solder the
carbon resistor having same value in place of
printed one of the conductor side.
1/32W carbon resistor is supplied for the
replacing part of the printed resistor.
Notes on chip component replacement
u Never reuse a disconnected chip component.
0 Notice that the minus side _of a tantalum capacitor