Sony WM-DD Service Manual

SPECIFICATIONS
Power Requirements: 3 V dc
Internal batteries: IEC designation R6
(size A A) x 2
AC power adaptor: Refer to the following
chart to choose the correct adaptor for
your area.
Country
Ac power line
voltage
Optional ac
power adaptor
US
Canadian
120 Vac, 60 Hz
AC-39 available in the
U.S.A. and Canada
UK
240 Vac, 50 Hz
AC-37 available in the
United Kingdom
AEP
220 V ac, 50 Hz
AC-37 available in
European countries
E
120 Vac, (110,220 or
240 V ac, adjustable
by Sony personnel),
50/60 Hz
110,120, 220 or 240 V
ac, adjustable,
50/60 Hz
AC-38 available
in Japan
AC-38 available in
other countries
12 V car battery: Sony DCC-127A* car
battery cord
*For connection with the DCC-127A, the optional PC-
200 dc plug adaptor is required.
Battery Life
(continuous playback
hours): Approx. 9 hours with supplied Sony
Eveready AM3 alkaline batteries
For maximum performance we recommend the use of alkaline bat¬
teries.
Dimensions: Approx. 79 x 109.2 x 29 mm (w/h/d)
(3i/s x4s/ 16 x 13/ie inches)
not incl. projecting parts and controls
Weight: Approx. 290g (IO 1 /4 oz) incl. batteries, not
inch other accessories
MICROFILM
Tape Track:
Fast Winding Time:
Frequency Response:
Wow and Flutter:
Power output:
Output:
4-track 2-channel stereo
Approx. 2min. with Sony Cassette C-60
40 — 15,000 Hz (with the TAPE selector
+ tn METAL*
set t0 CrOj 1
40 — 12,000 Hz (with the TAPE selector
set to NORM)
±0.13% (DIN)
0.08% WRMS (NAB)
25 mWx 2 (max.)
20 mW x 2 (at 10% harmonic distortion)
at dc operation
Headphone jacks (stereo minijack) ... 2
load impedance 8 — 300 ohms
Tape Transport
Mechanism Type
MT-WMDD-24
SERVICE MANUAL

Sony WM-DD Specifications

General

Brand	Sony
Model	WM-DD
Category	Cassette Player
Language	English