Sony BM-890 Service Manual

SERVICE MANUAL
Recording system
Tape speed
Fast winding time
Frequency response
WER
iN
s Foi
STANDBY G
SPECIFICATIONS
4-track 2-channel monaural
(L channel for electronic index signals, R channel for sound signals)
2.4 cm/s (15/16 in./s), 1.2 cm/s (15/32 in./s)
Approx. 1 min. 50 sec. (2.4 cm/s) with Sony microcassette MC-60BM
200 — 4,000 Hz (at 1.2 cm/s) —
200 - 6,000 Hz (at 2.4 cm/s)
Speaker Approx. 5.7 cm (2 1/4 inches) dia.
Power output 0.35 W (at 10° distortion)
Input TELEPHONE PICKUP (minijack)
Sensitivity 0.2 mV input impedance 10 kilohms
Output EARPHONE (minijack) for 8 - 300-ohm earphones
CONTROL UNIT connector
Power requirements
Power consumption
Dimensions
Mass
Supplied accessory
For HU-80, FS-75
9vDC
DC IN 9V jack accepts the supplied AC power adaptor for use on
120 V AC, 60 Hz in US, Canada
220 V AC, 50 Hz in continental European countries
240 V AC, 50 Hz in U.K.
With the supplied AC power adaptor:
14 W (model for US, Canada)
13 W (model for U.K. and continental European countries)
Approx. 200 x 70.5 x 245 mm (77/g x 27/g x 93/4 in.) (w/h/d) including
projecting parts and controls
_ Approx. 1.2 kg (2 Ib. 11 02.)
AC power adaptor (1)
Design and specifications subject to change without notice.
This appliance conforms with EEC Directive 87/308/EEC regarding interference suppression.
You cannot use the HU-60 hand control unit with this unit.
Your dealer may not handle some of the above listed optional accessories. Please ask the
dealer for detailed information.
BM-890
US Model
Canadian Model
AEP Model
UK Model
Model Name Using Similar Mechanism
Tape Transport Mechanism Type MB-850
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS' LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES COMPOSANTS IDENTIFIES PAR UNE MARQUE /\
SUR LES DIAGRAMMES SCHEMATIQUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM.
POSANTS QUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL OU
DANS LES SUPPLEMENTS PUBLIES PAR SONY.
MICROCASSETTE
DICTATOR TRANSCRIBER