DOWNLOAD Sony STR-DN1040 Service Manual ↓ Size: 8.17 MB | Pages: 127 in PDF or view online for FREE

UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the 
lead-free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 

than ordinary solder.

 

Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.

 

Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if 

the heated tip is applied for too long, so be careful!

• Strong 

viscosity

 

Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.

•  Usable with ordinary solder
 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

NOTE  OF  REPLACING  THE  IC3202,  IC3500  AND  
IC3506  ON  THE  DIGITAL  BOARD
IC3202, IC3500 and IC3506 on the DIGITAL board cannot
exchange with single. When these parts on the DIGITAL board are 
damaged, exchange the entire mounted board.

NOTE  OF  REPLACING  THE  IC901  ON  THE  STANDBY 
BOARD
IC901 on the STANDBY board cannot exchange with single. 
When this part on the STANDBY board is damaged, exchange the 
entire mounted board.

US, Canadian

4-453-059-0[]

AEP, UK

4-453-059-1[]

Australian

4-453-059-2[]

Brazilian

4-453-059-6[]

NOTE  OF  REPLACING  THE  Q550,  Q551,  Q600,   
Q601,  Q650,  Q651,  Q700,  Q701,  Q750,  Q751,  Q800,  
Q801,  Q850  AND  Q851  ON  THE  MAIN  BOARD
Replacement of Q550, Q551, Q600, Q601, Q650, Q651, Q700, 
Q701, Q750, Q751, Q800, Q801, Q850 and Q851 on the MAIN 
board used in this unit requires L type screw driver.

If there is a malfunction, a message appears 
on the display panel. You can check the 
condition of the system by the message. If 
any problem persists, consult your nearest 
Sony dealer.

The receiver will automatically turn off 
after a few seconds, check the 
followings:
s There may be electrical surge or power 

failure. Unplug the AC power cord 
(mains lead), and then plug in the cord 
again after 30 minutes.

s The receiver is covered and ventilation 

holes are blocked. Remove the object 
covering the ventilation holes of the 
receiver.

s The impedance of the connected 

speakers is below the rated impedance 
range indicated on the back panel of 
the receiver. Reduce the volume level.

s Unplug the AC power cord (mains 

lead), let the receiver cool down for 
30 minutes while troubleshooting the 
followings:
– Disconnect all the speakers and 

subwoofer.

– Check that the speaker wires are 

tightly twisted on both ends.

– Connect front speaker first, increase 

the volume level and operate the 
receiver 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 that is 
causing the protection error.

After checking 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.

An over current from the   (USB) port 
was detected. The receiver will 
automatically turn off after a few 
seconds. Check the iPod/iPhone or USB 
device, then unplug it and turn on the 
power again.

For other messages, see “Message list after 
Auto Calibration measurement”, 
“iPod/iPhone message list”, 
“USB message list” and 
“Network features message list”.

All memorized settings

Customized sound fields

You can clear all memorized settings and 
revert the receiver back to the factory 
default settings by performing the 
following procedure. This procedure can 
also be used to initialize the receiver before 
you use it for the first time.
Be sure to use the buttons on the receiver to 
perform this operation.

?

1

?

1

The “CLEARING” appears on the 
display panel for a while, then changes 
to “CLEARED!”.
Changes or adjustments made to the 
settings are now reset to the defaults.

It takes about a few minutes for the memory to be 
cleared completely. Do not turn the receiver off 
until “CLEARED!” appears on the display.

?/1

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

?/1 to turn off the receiver.

While holding down MUSIC, press 
?/1.

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

?/1

MUSIC

•  This set can be disassembled in the order shown below.

Note: Follow the disassembly procedure in the numerical order given.

3

u 8)

4

2

u 8)

5

1

u 8)

4

• Abbreviation
 AUS : 

Australian 

model

  BR 

: Brazilian model

  CND  : Canadian model

1

4

2

u 8)

5

u 8)

6

3