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1

Model Name Using Similar Mechanism

NEW

Tape Transport Mechanism Type

MF-W828-117

E Model

Frequency range

FM:

EA model: 87.5 - 107 MHz/
E15, UAE model: 87.5 - 108 MHz

MW: EA model: 530 - 1,605 kHz/

E15, UAE model: 530 - 1,611 kHz

SW1: 2.3 - 7 MHz
SW2: 7 - 22 MHz

IF

FM: 10.7 MHz
MW/SW: 455 kHz

Antennas

FM/SW: Telescopic
MW: Built-in ferrite bar

Recording system

4-track, 2-channel stereo

Frequency response

80 - 12,500 Hz

Speakers

Full range: 10 cm (4 inches) dia., 6 

Ω, cone type/

Tweeter: 2 cm (

13/16

 inches) dia.

Output

Headphones jack (stereo minijack), for 16 - 68 

Ω

impedance headphones

Maximum Power output

9W

Battery life

FM Recording: Sony R20P: Approx. 9 hours/
Sony LR20 alkaline: Approx. 23 hours
Playback: Sony R20P: Approx. 3 hours/
Sony LR20 alkaline: Approx. 8 hours

Power requirements

110 - 120 V/220 - 240 V AC selectable, 50/60 Hz
9 V DC, six R20 (size D) batteries

Power consumption

AC 18 W

Dimensions

Approx. 679 

× 263.5 × 239.5 mm (w/h/d)

(26 

6/8

 

× 10 

3/8

 

× 9 

4/9

 inches) incl. projecting parts

and controls, not incl. handle

Mass

Approx. 7.3 kg (16 lb 1 oz) incl. batteries

Supplied accessory

AC power cord (1)

Design and specifications are subject to change without
notice.

• Abbreviation

E15

: AC 220-240V area in E model

EA

: Saudi Arabia model

UAE : United Arab Emirates model

2001K0400-1

© 2001.11

2

............................................................................ 3

2-1.   Cabinet (Rear) Assy ............................................................ 4
2-2.   Power Board ........................................................................ 5
2-3.   Mechanism Deck ................................................................. 5
2-4.   H/P, LED2, Maxi Bass, VOL and Main Boards .................. 6
2-5.   F/T and Tuner Boards .......................................................... 6
2-6.   Jog and LED1 Boards ......................................................... 7
2-7.   REC SW Board, Belt and Motor Assy (W) (M301) ........... 7

............................................. 8

................................. 9

Tape Section ............................................................................ 9
Tuner Section ......................................................................... 10

6-1.   Circuit Boards Location .................................................... 12
6-2.   Block Diagram .................................................................. 13
6-3.   Printed Wiring Boards – Tuner Section – ......................... 14
6-4.   Schematic Diagram – Tuner Section – .............................. 15
6-5.   Printed Wiring Boards – Main Section – .......................... 16
6-6.   Printed Wiring Boards – Power Section – ......................... 17
6-7.   Schematic Diagram – Main Section (1/2) – ...................... 18
6-8.   Schematic Diagram – Main Section (2/2) – ...................... 19

7-1.   Cabinet (Rear) Section ...................................................... 21
7-2.   Cabinet (Front) Section-1 .................................................. 22
7-3.   Cabinet (Front) Section-2 .................................................. 23
7-4.   Mechanism Deck Section-1 .............................................. 24
7-5.   Mechanism Deck Section-2 .............................................. 25
7-6.   Mechanism Deck Section-3 .............................................. 26
7-7.   Speaker Section ................................................................. 27

......................................... 28

COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE
WITH  MARK  0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.

Notes on Chip Component Replacement
• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

3

This section is extracted
from instruction manual.

VOLUME

MIC

OPR/BATT

FUNCTION

FINE TUNING

TUNING

BAND

Deck A

Deck B

PHONES

ISS (rear)

SOUND SELECT

MAXI BASS

VOLTAGE
SELECTOR
(rear)

4

• The equipment can be removed using the following procedure.

Note : Follow the disassembly procedure in the numerical order given.

2-1. CABINET (REAR) ASSY

(Page 4)

2-2. POWER BOARD

(Page 5)

SET

2-6. JOG AND LED1

BOARDS
(Page 7)

2-4. H/P, LED2, MAXI BASS,

VOL AND MAIN BOARDS
(Page 6)

2-5. F/T AND TUNER BOARDS

(Page 6)

2-3. MECHANISM DECK

(Page 5)

2-7. REC SW BOARD, BELT AND 

MOTOR ASSY (W) (M301)
(Page 7)

2

 BVTP 3x16

3

 BVTP 3x16

4

 BVTP 3x16

5

 cabinet (rear) assy

6

 CNP311

7

 CNP1

1

 lid, battery case