Sony mdr if 420 rk service manual

Page 2

TABLE OF CONTENTS

SAFETY-RELATED COMPONENT WARNING
OOMPONENTS IDENTIFIED BY MARK A 0R DOTI'ED

GENERAL

1.

LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRIflCAL TO SAFE

OPERA'HON. REPLACE THESE COMPONENTS WI'I1'I
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-

LISHED BY SONY.

ELECTRICAL ADJUSTMENTS

Transmitter Section

2.

7

Headphones Section

DIAGRAMS

3.

Printed Wiring Board

3~1.

A1TEN110N AU COMPOSANT AYANT RAPPORT

- Transmitter Section

A LA sEcunITEl
Les COMPOSANTS iDENnFIEs PAH UNE NAnoue A

-12

(TMR-IF4ZOR/IF520R) -

Schematic Diagram

3-2.

SUR LES DIAGRAMMES SCHEMATIOUES EI' LA LISTE

- Transmitter Section

DES PIEces SONT camoues POUR LA sEcunn'E
DE F0Nc110NNEMEN1'. NE REMPLACER ces com-
POSANTS oue PAR Des PIEcES SONY DONT Les
NUMEnos SONT DONNES DANS cE MANUEL ou
DANS Les SUPPLEMENTS PuauEs PAR SONY.

(TMR-IFAZOR/IFSZOR) -

Schematic Diagram

3-3.

- Headphones Section

-15

(MDR-IF420R/IF520R) -

Printed Wiring Boards

3-4.

- Headphones Section

17

(MDR-IF420R/IF520R)-

~19

EXPLODED VIEWS

4.

22

ELECTRICAL PARTS LIST

5.

SECTION 1

GENERAL

This section is extracted from

instruction manual.

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