Onkyo DX 7222 Service Manual

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ONKYO® SERVICE MANUAL
COMPACT DISC PLAYER

DX-7222 ,

Flef. No. 3635
091999

MODEL DX-7222

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PM 0 L-J E] El
1 . a mm" @ amgnflg}
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Black, Silver and Golden models

SMP, BMP, BMPT, GMPI

230V AC, 50Hz

BMWT, GMWT

220~23OV/120V AC, 50/60Hz

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A ON
THE SCHEMATIC DIAGRAM AND IN THE PARTS
LIST ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE THESE COM-
PONENTS WITH ONKYO PARTS WHOSE PARTS
NUMBERS APPEAR AS SHOWN IN THIS MANUAL,

MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY IN-
SULATED FROM THE SUPPLY CIRCUIT BEFORE
RETURNING THE APPLIANCE TO THE
CUSTOMER.

ON KYO®
Illlllll IIIIIIPIIIHIIS

TABLE OF CONTENTS

Specifications 2
Caution on replacement of optical pick up --
Protection of eyes from laser beam during serv1cmg --

Chassis exploded View parts list ~
CD Mechanism exploded View --
CD Mechanism exploded view parts list --
Replacement optical pick up ---------------
Block diagram
Microprocessor terminal description ---
Schematic diagram ----------------------
Printed circuit board view from bottom side
IC block diagrams and descriptions ------------
Printed circuit board parts list
Adjustment procedures --
Packing View & parts list ---