Sony Walkman WM-701C US Service Manual

SERVICE MANUAL
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol ПП are trademarks of
Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
Frequency response (DOLBY NR off)
20—18,000 Hz
Output
Headphones (PHONES/REMOTE jack) load impedance 8—3009
Power output
5 mW+5 mW at DC operation, 162
Power requirements
15V DC
Rechargeable battery
One size AA (R6) battery
DC In 1.5 V jack accepts:
Battery life
Battery | Playback hours
Rechargeable NC-6WM fully charged - Approx. 2.5 hours
Sony SUM-3 (NS) Approx. 1.5 hours
| Sony alkaline AM3 (N) ШЕ Approx. 4.5 hours
| Rechargeable NC-6WM with Sony AM3 (N) | | Approx. 65 hours
For maximum performance we recommend the use of alkaline batteries.
Dimensions
Approx. 104.6 x 71.8 x 18.2 mm (w/h/d)
not inci. projecting parts and controls
Aprox. 105.6 x 74.2 x 19.8 mm (w/h/d)
incl. projecting parts and controls
Weight
Approx. 150 g incl. rechargeable battery, not incl. other accessories
Accessories supplied
Battery case (1)
Carrying pouch (1) Battery charger (1)
Rechargeable battery (1)
Stereo headphones with the remote controlled device (open-air type, 1)
Plug adaptor (1)
Clip (1)
Design and specifications subject to change without notice.
Note: Use only the recommended an AC power adaptor or a car battery cord manufac-
tured by Sony. Polarity of the plug of other manufacturers may be different..
p
Polarity of the Sony plug
WM-701C
US Model
AEP Model
UK Model
E Model
Model Name Using Similar
Mechanism
TABLE OF CONTENTS
New Mechanism
Section Title Page
$ресїйсайопз................... 1
SECTION 1. SERVICING NOTE. ........2
SECTION 2. GENERAL
2-1. Location and Function of Controls . 3
2-2. Disassembly . 4
2-3. Reassembly 5
SECTION 3. ADJUSTMENTS
3-1. Mechanical Adjustments, ..........6
3-2. Electrical Adjustments. . . . .. ...... 6
SECTION 4. DIAGRAMS
4-1. Semiconductor Lead Layouts. .......7
4-2. Printed Wiring Воагіав............8
4-3. Schematic Diagram ............ 11
4-4. IC Block Diagram . . ........... 14
SECTION 5. EXPLODED VIEWS. ....... 15
SECTION 6. ELECTRICAL PARTS LIST... . . 18
CASSETTE PLAYER
ON Y.