Sony m 679 v service manual

Page 1

M-629V/679V

SERVICE MANUAL ~ v Canadléfimgggl

M-629V/67 9V

AEP Model
E Model

Mv629V
Photo: M29V
Model Name Using Similar Memanism NEW
Tape Transport Mechanism Type MZ~627V~14
SPECIFICATIONS
Tape Dimensions (w/hld)
-" (normal position type) Approx. 65.1 x l2] .4 x 25.2 mm (2 Is x 4 7/s x I in.) incl, projecting
Recordlng system pans and controls
2-track l-channel monaural Mass
Speaker Approx. 130 g (4.6 oz)
Approx. 3.6 cm (l 7/m in.) dia. Supplled accessories
Tape speed Micro cassette tape (1) (M-629v European model only)
2.4 cm/s (Ito ips), l.2 cm/s (llszips) Size AA (R6) batteries (2) (M»629V European model only)
Frequency range AC power adaptor (l) (M-679 only)
300 - 400) Hz Battery charge adaptor ( l) (M-679V only)
Input Rechargeable batteries NCAA, l.2 V, 600 mAh, Ni-Cd (2) (M»679V
Microphone input jack (minijack/PLUG 1N POWER) only)
sensitivity 0.24 mV for 3 kilohms or lower impedance microphone
Output Design and specifications are subject to change without notice.

Earphone jack (minijack) for 8 e 300 ohms earphone
Power output (at 10% harmonic distortion)

160 mW
Battery life (recording)

See Preparing Power Souces.
Power requlrements

3 V DC

Twn size AA (R6) batteries

MlcnocAssmEW-conutn
S C)N'Y®

Page 2

SERVICING NOTES

Flexible Circuit Board Repairing

0 Keep the temperature of the soldering iron around 270 ' C dur-
ing repairing.

- Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

I Be careful not to apply force on the conductor when soldering
or unsoldering.

Notes on chip component replacement

0 Never reuse a disconnected chip component,

. Notice that the minus side of a tantalum capacitor may be dam-
aged by heaL

MODEL IDENTIFICATION

SONY® CASSETTE-CORDER M-629V

m

INDICAION OF COUNTRY OF ORIGIN:
US, Canadian, AEP, E, model
N0 INDICATION OF COUNTRY OF ORIGIN: 1Emodel

SECTION 1 This section is extracted
GENERAL from instruction manual.

0 Parts Identification

EAR

TAPE
SPEED-a

TAPE
COU NTER

BA'I'T -

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL T0 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 MAROUE A
sun as DIAGRAMMES SCHEMATIOUES ET LA LISTE
DES PIEcEs SONT CRITIQUES POUR LA sEcumTE
DE FONcn0NNEMENT. NE REMPLACER OES cou-
POSANTS QUE PAR DES PiEcEs SONY DONT LEs
NUMEnos SONT DONNEs DANS CE MANUEL ou
DANS LES SUPPLEMENTS PUBLIEs PAR SONY.

MIC (PLUG IN POWER)
Microphone

« CUE/REVIEW »
I 2

VOR