Service Procedures - Onkyo DX-7911 Service Manual

SERVICE PROCEDURES
1. How to Release the Transport Lock
To protect the optical assembly including the laser pickup
from vibration related damage during shipping, this unit is
equipped with a transport lock lever located on the base.
1. Loosen the screw with Phillips screwdriver.
2. Move the lock lever in the direction opposite that shown
by the arrow. Move the lever up to the position where
It can move no farther, and then remove the lever.
@ Tighten the screw to secure the lock lever.
@® For shipping, restore the lock lever to its position in
the direction of the arrow, then tighten down the
screw to secure the lock lever in that position.
Lock lever
a
"Oc,
2. Use of batteries
@® The remote control transmitter is powered by two
batteries. Before using this unit for the first time,
insert the two batteries (included).
@ Average battery life 1s about one year. This period
may be shorter depending on the frequency of use
and environment (temperature and humidity) in
which the remote control transmitter is used.
if the remote control transmitter does not operate
even though front panel controls function normally,
the batteries should be replaced. Use only listed in
the following chart.
AA
Menge 1.5V AG
UM-3
3. 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 cable and chassis.
Specifications: more than 10Mohm at S500V.
4. Voltage selector (rear panel)
Worldwide models are equipped with a voltage selec-
tor to conform with local power supplies. Be sure to
set this selector to match the voltage of the power
supply in your area before turning the power switch
on. Voltage is changed by turning the voltage selector
with a screwdriver or similar instrument to the 120V
or 220V position. Confirm that the selector has been
set to the correct position before turing the power
switch on. If there is no voltage selector switch on the
unit you have purchased, it can only be used in areas
where the power supply voltage is the same as that of
the unit.