Sony wm dd mk3 service manual

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SERVICE MANUAL

HEADPHONES jacks (stereo minijacks)
REW » (rewind) button

« FF (fast forward) button
< PLAY button
I STOP button

Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
DOLBY and the double-D symbol DU are trademarks of
Dotby Laboratories Licensing Corporation.

Refer to MDR-15L Serwce Manual Issued previously
for information of headphones supplied with this set.

AE P Model

VOLUME control

BATTERY indicator
DOLBY NR switch

TAPE selector

PHOTO: BLACK TVPE

SPEC'F'CAT'ONS Similar Mechanism Set WM-DD
Tape track Tape Transport Mechanism Type DD»100
4»track 2»channel stereo
Fast winding time
Dimensions

Approx. 2 min. with Sony Cassette 0-60
Frequency response
40-15300 Hz
Wow and flutter
20.13% (DIN)
0.08% WRMS (NAB)
Power output
Headphones:
20 mW + 20 mW(at10°/o harmonic distortion)
load impedance 32 ohms
at DC operation
Outputs
Two HEADPHONES (acks (stereo minijacks)
load impedance 8*300 ohms
Power requirements
3V DC, two R6 (size AA) batteries
DO IN 3V jack accepts:
EBP»500 battery case (optional) tor use on
two R20 (size D) batteries
AC»D2M AC power adaptor (optional) for use
on 220V AC, 50 Hz
00070 or DOC-127A car battery cord (optional) tor use with 12V
car battery
(For Connection With the DOC-127A, the optional PC-ZOO DC plug
adaptor is required.)

Battery lite
Batteries Continuous playback hours
Sony batteries SUM-3 (NS) Approx, 4
Sony alkaline batteries AM3 Approx. 9

For maximum performance we recommend the use at alkaline
batteries

MICROFILM

Approx. 79.7 X 110 X 32.8 mm (Wlhld)
(3V. XAV. X17 inches)
incl. prolecting parts and controls
Weight
Approx 2909 (10.3 oz) incl. batteries,
not incl. other accessories

Note: It a car battery cord or an AC power adaptor not manutactured by Sony
is used. a luse must be installed in the battery cord or the AC power
adaptor and the polarity of the plug must be as illustrated.

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FEATURES

- Disc Drive system assures accurate and stable tape trans-
port, greatly reducing wow and flutter.

- Dolby NR system reduces tape hiss noise.

0 Tape selector for optimum playback with standard tapes
as well as high-performance tapes.

- Two HEADPHONES jacks allow two persons to listen to
tape playback together.

STEREO CASSETTE PLAYER
SONY;