Sony WM-W800 Service Manual

SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK ModeI
SPECIFICATIONS
Tape track 4-track 2-channel stereo
Fast winding time Approx. 3min. with Sony cassette HF-60
Frequency response Deck A {Dolby NR OFF): 40-15,000 Hz
Deck B: 60-9,000 Hz
Input
External microphone input (stereo minijack) (PLUG IN POWER)
sensitivity 0.35 mV (-67 dB) for low impedance microphone
Output
Headphones jack (stereo minijack)
load impedance 8-300 ohms
Power output
. 8 mW + 8 mW (at 10% harmonic distortion) at dc operation
Power requirements 3 V dc
Two IEC designation R6 batteries (size AA)
DC IN 3 V jack accepts:
Sony AC-D2 ac power adaptor (optional)
(US, Canadian) . . .120 Vac, 60 Hz
(AEP).. . .220 Vac, 50 Hz
(UK).. .240 Vac, 50 Hz
Sony EBP-500 battery case (optional) for use on two IEC designation
R20 batteries (size D)
Sony DCC-70 car battery cord (optional) for use with 12 V car battery
Battery life (EIAJ) (hours)
Batteries
Tape
playback
Recording
(microphone)
Supplied Sony SUM-3(NS)
New Super batteries
Approx. 6 Approx. 4
Sony Eveready AM3
alkaline batteries
Approx. 12 Approx. 8
For maximum performance we recommend the use of alkaline batteries.
Dimensions
Approx. 116x88.7x38.2mm (w/h/d) incl. projecting parts and controls
(4% x 3 V 2 x 1 9 / 16 inches)
Approx. 114x84.8x36.2mm (w/h/d) not incl. projecting parts and controls
(4V 2 x 3% x 1 7 / 16 inches)
Weight
Approx. 350 g (12.4oz) incl. batteries, not incl. other accessories
Tape Transport Mechanism Type
MT-W800(A)-25 (DECK A)
MT-W800(B)-25 (DECK B)
FEATURES
• Double-cassette WALKMAN which can copy a recorded
tape on deck A to a tape on deck B.
• Small-size one-point stereo microphone supplied.
• Dolby NR system reduces tape hiss noise in the playback
mode on deck A.
• PB EQ (playback equalizer) selector on deck A for
optimum playback with standard tapes as well as high-per¬
formance metal tapes.
• MIC (PLUG IN POWER) jack supplies power to the sup¬
plied microphone.
'Dolby' and the double-D symbol are the trade marks of
Dolby Laboratories Licensing Corporation. Noise reduction
system manufactured under license from Dolby Laboratories
Licensing Corporation.
STEREO CASSETTE CORDER

Sony WM-W800 Specifications

General

Brand	Sony
Model	WM-W800
Category	Measuring Instruments
Language	English

Summary

Servicing Notes

Precautions for Component Replacement

Important warnings and guidelines for safely replacing electronic components.

Removing Chip Components

Detailed steps for safely removing chip components from the circuit board.

Connecting Chip Components

Block Diagram

Overall System Block Diagram

Disassembly Procedures

Control Panel and Cassette Lid Disassembly

Mechanical Component Disassembly

Further Disassembly Steps

Head Chassis Disassembly

Adjustments

Adjustment Precautions

Mechanical Adjustments

Electrical Adjustments

Head Azimuth Adjustment

Procedure to align playback/record heads for optimal azimuth.

Tape Speed Adjustment

Steps to adjust and calibrate the tape playback speed for both decks.

Dolby NR Level Adjustment

Record Bias Adjustment

Diagrams

Audio Section Schematic Diagram

Detailed circuit diagram for the audio section of the device.

Servo Section Schematic Diagram

Detailed circuit diagram for the servo section of the device.