Sony STR-DH590 Service Manual page 5
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Also See for STR-DH590:
- Help manual (122 pages) ,
- Operating instructions manual (56 pages) ,
- Startup manual (2 pages)
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NOTE OF REPLACING THE H59-DIGITAL BOARD
FOR REPAIRING
When the H59-DIGITAL board is defective, replace the complete
mounted board.
The mounted parts cannot be replaced with single for repairing.
Block diagram and printed wiring board that have been described
in this service manual are for reference.
NOTE OF REPLACING THE ELECTRICAL PARTS ON
EACH BOARD FOR REPAIRING
Among mounted electrical parts on each board, only parts that are
described in the electrical parts list can be replaced for repairing.
The parts that are not described in the electrical parts list cannot be
replaced with single for repairing.
ERROR MESSAGES
"PROTECT" appears on the display
panel.
The receiver will automatically turn off after
a few seconds. Check the followings:
Unplug the AC power cord (mains lead) and
let the receiver cool down for 30 minutes
while performing the following
troubleshooting:
– Disconnect all of the speakers and
subwoofer.
– Check that the speaker wires are tightly
twisted on both ends.
– Check that the receiver is not covered
and ventilation holes are not blocked.
– Check that the nominal impedance of the
connected speakers fall within the
impedance range indicated on the rear
panel of the receiver.
– Connect the front speaker first, plug in
the AC power cord (mains lead) and turn
on the receiver. Increase the volume level
and operate the receiver for at least
30 minutes until it completely warms up.
Then, connect each additional speaker
one by one and test each additional
speaker until you detect which speaker is
causing the protection error.
After checking the above items and fixing
any problems, plug in the AC power cord
(mains lead) and turn on the receiver. If the
problem persists, consult your nearest
Sony dealer.
"USB FAIL" appears on the display
panel.
An over-current from the POWER SUPPLY
port was detected. Turn off the receiver,
disconnect the USB device, and then turn
on the receiver again.
REVERTING TO THE FACTORY DEFAULT SETTINGS
You can clear all memorized settings and
restore the receiver to the factory default
settings by the following procedure.
Be sure to use the buttons on the receiver
to perform this operation.
1
Press
(power) to turn off
the receiver.
(power)
2
Press and hold
(power) for
5 seconds.
"CLEARING" appears on the display
panel during initialization. When
initialization is complete, "CLEARED "
appears on the display panel.
(power)
Note
It takes a few seconds for the memory to be
cleared completely. Do not turn the receiver off
until "CLEARED " appears on the display panel.
STR-DH590
5
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