Onkyo DXC 106 206 Service Manual

Page 2

DX-CZOG
DX-ClOG

TABLE OF CONTENTS

Specifications ................................ 1
Service procedures ............................ 2
Caution on replaceaent of optical pickup ...... 2
Protection of eyes fro. laser ben- ............ 3
Laser Iarning labels .......................... 3
IC block diagrals and descriptions ............ 4
Packing vieI .................................. 9
lechanisrexploded vie! ...................... 10

Changer nechanisn .......................... ll)

Pick-up drive unit ......................... 12
Chassis-exploded viel ........................ 13
Parts list ................................... 15
Block diagran ................................ 11
Adjust-en procedures ........................ 19
Printed circuit board view fron botto- side..21
Printed circuit board~parts list ............. 23
Disassenhling procedures ..................... 25

SERVICE PROCEDURES

1. Safety-check out
After correcting the original service problem.perform
the following safety check before releasing the set
to the customer:
Connect the insulating-resistance tester between the
plug of power supply cord and chassis.
SpecificationsMore than lOMohm at 500V.

2. Voltage Selector (B ack panel)
Worldwide models are equipped with a voltage selector
to conform with local power supplies.Be sure to set
this switch to match the voltage of the power supply
in user's area before turning the power switch on.
Voltage is changed by sliding the groove in the switch
with a screw driver to the right or left,
Confirm that the switch has been moved all the way to
the right or left before turning the power switch on.

I [ID [ID I
220v ~ 120v ~ 220V ~ 120v ~
at ACIZOV at AC220V

CAUTION ON REPLACEMENT OF OPTICAL PICKUP

The laser diode in the optical pickup block is so During repair,carefulley take the following precautions.
sensitive to static electricitysurge current and etc, (The following precautions are included in the service

that the components are liable to be broken down parts.)

or its reliability remarkably deteriorated.

PRECAUTIONS
l.Ground for the work-desk. 3.Grounding for the human body.
Place a conductive sheet such as a sheet of copper Be sure to put on a wrist-strap for grounding whose
(with inpedance lower than IOMD.) on the work- other end is grounded.
desk and place the set on the conductive sheet so Be particularly careful when the workers wear
that the chassis. synthetic fiber clothes. or air is dry.
2.Grounding for the test equipment and tools. 4.Select a soldering iron that permits no leakage and
Test equipments and toolings should be grounded have the tip of the iron well-grounded.
in order that their ground level is the same the 5.Do not check the laser diode terminals with the
ground of the power source. probe of a circuit tester or oscilloscope.