Sony WM-F701C Service Manual

MICROFILM
— SERVICE MANUAL
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbo! DJ are trademarks of
Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
Radio section
Frequency range
US model: j
FM: 87.9—~107.9 MHz
AM: 530~—1,670 kHz
AEP, UK model:
FM: 87.5—108 MHz
AM: 531—1,602 kHz
Antenna
FM: Headphones cord antenna
AM: Built-in ferrite bar antenna
Tape piayer section and general
Frequency response (DOLBY NR off)
20—18,000 Hz
Output
Headphones (PHONES/REMOTE jack) load impedance 8—-300Q
Power output
5S mW+5 mw at DC operation, 162
Power requirements
15VDC
Rechargeable battery
One R6 (size AA) battery
DC IN 1.5 V jack accepts:
Sony AC-D1M power adaptor (optional)
Sony EBP-7 battery case (optional) for use with two Ré6 (size AA) batteries
Sony OCC-70 (optional) for use with 12 V car battery
Battery life
Battery Playback | Radio Reception
| Rechargeable NC-6WM fully charged | Approx. 2.5 hours | Approx. 5 hours
Sony SUM-3 (NS) Approx. 1.5 hours | Approx. 3 hours
| Sony AM3 (N) | Approx. 4.5 hours | Approx. 8.5 hours
Rechargeable NC-6WM with Sony AM3(N)}_ Approx. 6.5 hours { Approx. 12 hours
For maximum performance we recommend the use of alkaline batteries.
Dimensions
Approx. 104.6 x 71.8 x 22.4 mm (w/h/d) not incl. projecting parts and controls
Approx. 105.6 x 74.2 x 24.5 mm (w/h/d) incl. projecting parts and controls
Weight
Approx. 190 g incl. rechargeable battery, not inci. other accessories
Accessories supplied
Battery case(1) Carrying pouch(1) Battery charger (1)
Rechargeable battery (1) Lithium battery (1)
Stereo headphones with remote the controlled device (open-air type, 1)
Piug 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
manutactured by Sony. Polarity of the plug of other manufacturers may be
different,
%
ye
Polarity of the Sony Plug
US Model
AEP Made!
UK Model
Model Name Using Similar
Tape Transport Mechanism Type | MT-WM701C-17
TABLE OF CONTENTS
Section Title
SPECIFICATIONS ee ie ry ]
SECTION 1. SERVICING NOTE -------+++--++ee2-+ 2
SECTION 2. GENERAL
2-1. Location and Function of Controls -:--- 3
2-2. Disassembly -ccrrtr crete teeter eres
2-3. Reassembly «c+ ts tr ttre rere tee e eee er es 5
2-4. Removal of Radio Board ------+++-+++++*+ 6
SECTION 3. ADJUSTMENTS
3-1. Mechanical Adjustments ---++++++ctrree* 7
3-2. Electrical Adjustments ---+c+rce tree e*) 67
SECTION 4. DIAGRAMS
4-1. Semiconductor Lead Layouts -------+:---* 10
4-2. Printed Wiring Boards
(Cassette Section) +4 +s ssesseee eewete 4-7)
4-3. Schematic Diagram (Cassette Section)- 15
4-4. IC Block Diagrams ---+++++++++rresreree s 18
4-5. Printed Wiring Boards (Radio Section) 19
4-6. Schematic Diagram (Radio Section):----: 21
SECTION 5. EXPLODED VIEWS --------++--see-+ > 28
SECTION 6. ELECTRICAL PARTS LIST ------++s+- * 27
RADIO CASSETTE PLAYER