Sony m 88 v service manual
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Page 1
M-88V
US Model
Canadian Model
AEP Model
UK Model
E Model
SERVICE MANUAL
Model Name Using Similar
Mechanism MJSOV
Tape Transport Mechanism Type M23844
SPECIFICATIONS
Tape '_ (normal position type)
Recording system 2Atrack 1-chan nel monaural
Speaker Approx. 2.3 cm (29/32 inches) dia.
Tape speed 2.4cmls (15/16 ips), i.2cm/s (15/32 ips)
Frequency response 250-4000 Hz (at 2,4 cm position)
input/output Earphone/microphone jack (minijack)
Input: sensitivity 0.3mV for 3 kilohm or lower im-
pedance microphone (PLUG lN POWER)
Output: for 8-300 ohrn earphone
Power output 180mW (at 10% harmonic distortion)
Battery life (recording) Sony UM-4 (NU): Approx. 2.5 hours
Sony AM4 (N): Approx 7 hours
Power requirement 3V DC, two 803 (size AAA) batteries
Dimensions Approx, 63 x 929 x 26.7 mm (w/h/d)
(2V2 x 33/. x Ws inches)
incii projecting parts and controls
Weight Approx. 1609 (5.7 oz) inoi. batteries
Accessories supplied Remote control microphone (1), Earphone micro-
phone (1), Carrying case (1). Handstrap (1)
Design and specifications subject to change without notice.
Microcassettem-Corder
SONY;
Page 2
M 88V
¥ SECTION 1
GENERAL
El VOR (voice ope rated recording) switch
E EAR/MIC (earphone/microphone) jack
E Handstrap catch
E] Handstrap (supplied)
E) Cassette holder
(3 TAPE SPEED selectoraeti side)
Tape counter
fl Speaker
a Battery compartment (bottom)
REC/BATT (record/battery) Indicator
[E MIC SENS (microphone sensitivity) switch
IE VOL (volume) control
IE MIC (built-in microphone)
El 0 (record) button
E « »
CUE (fast lorward)/REVIEW (rewind) switch
V (playback) button
PAUSE switch
ll: (stop/eject) button
Cleaning the head
Prolonged use may contaminate the tape headt To enjoy opti-
mum sound, wipe the pans shown with a cotton swab moistened
with alcohol after every 10 hours of use
CONTROL/MIC (1-542-108-11)
i START/STOP 7 "
EAR/MIC (8-952-411-90)
. .HSTART/ w
t STOP
CON N ECTI ON
SERVICING NOTES
Notes on chip component replacement
0 Never reuse a disconnected chip component.
0 Notice that the minus side of a tantalum capacitor
may be damaged by heat.