STR-DH810 - Sony Audio Service Manual (repair manual). Page 4

If there is a malfunction, the display shows a 
message. You can check the condition of the 
system by the message. See the following table 
to solve the problem. If any problem persists, 
consult your nearest Sony dealer. 
If an error message appears while you perform
Auto Calibration, see “When error codes 
appear” to solve the problem.

Irregular current is output to the speakers, or 
the upper panel of the receiver is covered 
with something. The receiver will 
automatically turn off after a few seconds. 
Check the speaker connection and turn on 
the power again.

Clearing the receiver’s memory may remedy 
the problem. However, note that all 
memorized settings will be reset to their initial 
settings and you will have to readjust all 
settings on the receiver.

Before using the receiver for the first time, 
initialize the receiver by performing the 
following procedure. This procedure can also 
be used to return settings you have made to 
their initial settings. 
Be sure to use the buttons on the receiver for 
this operation.

?/1 to turn off the 

?/1 for 5 seconds.

After “CLEARING” appears on the 
display for a while, “CLEARED” 
appears.
All the settings you have changed or 
adjusted are reset to the initial settings.

?/1

?/1

Be sure to use the buttons on the receiver for 
this operation.

?/1 to turn off the 

?/1.

“S.F. CLEAR” appears on the display and 
all sound fields are reset to their initial 
setting.

?/1

?/1

MUSIC

Check the problem of the error.

*

xxx 

represent a speaker channel 

F

Front

S

Surround

SB

Surround back

FH

Front high

Depending on the error code, the speaker 
channel may not appears.

xxx

*

 

SPEAKERS is set to “SPK OFF”. Set it to 
others and perform the measurement again. 

xxx

*

 

None of the speakers were detected. Make sure 
that the optimizer microphone is connected 
properly and perform the measurement again. If 
the optimizer microphone is connected properly 
but the error code appears, the optimizer 
microphone cable may be damaged or 
improperly connected.

xxx

*

 

s None of the front speakers are connected or 

only one front speaker is connected. 

s The optimizer microphone is not connected.
s Either the left or right surround speakers is not 

connected.

s Surround back speakers or front high speakers 

are connected even though surround speakers 
are not connected. Connect the surround 
speaker(s) to the SPEAKERS SURROUND 
terminals. 
The surround back speaker is connected only 
to the SPEAKERS SURROUND BACK/
FRONT HIGH/BI-AMP/FRONT B R 
terminals. When you connect only one 
surround back speaker, connect it to the 
SPEAKERS SURROUND BACK/FRONT 
HIGH/BI-AMP/FRONT B L terminals.

s Either the front left high or front right high 

speaker is not connected.