STR-DA5400ES - Sony Audio Service Manual (repair manual). Page 4

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  IC3601  ON  THE  
D VIDEO  BOARD  
Replacement of IC3601 on the D VIDEO board used in this set 
requires a special tool.

NOTE  OF  REPLACING  THE  IC3511, IC3513  AND  
IC3514  ON  THE  D VIDEO  BOARD
IC3511, IC3513 and IC3514 on the D VIDEO board cannot ex-
change with single. When these parts on the D VIDEO board are 
damaged, exchange the entire mounted board.

NOTE  OF  REPLACING  THE  IC5002  AND  IC5202  ON  
THE  DSP  BOARD
IC5002 and IC5202 on the DSP board cannot exchange with sin-
gle. When these parts on the DSP board are damaged, exchange the 
entire mounted board.

UPDATE  OF  SOFTWARE  OF  IC2513  ON  THE  CON-
TROL  BOARD,  IC3610  ON  THE  D VIDEO  BOARD  AND  
IC5208  ON  THE  DSP  BOARD
Perform operation of the following when the update of software 
of the IC2513 on the CONTROL board, IC3610 on the D VIDEO 
board and IC5208 on the DSP board is necessary.

Procedure:
1.  Connect J1499 on the MAIN board and PC by using the RS-

232C cable.

2.  Turn on the main power.
3.  The update is executed by using PC.
4.  When the update ends, turn off the main power.
5.  Remove the RS-232C cable from the J1499 on the MAIN 

board and PC.

ERROR  MESSAGES
If there is a malfunction, the display shows a code of two numbers and a message. You can check the condition of the system by the message. 
Refer to the following table to solve the problem.

PROTECTOR

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. Cheack the speakers connection and turn 
on the power again.

US and Canadian models

3-296-122-0[]

AEP model

3-296-122-1[]

Continental European, East Euro-
pean and Russian models

3-296-122-2[]

UK model

3-296-122-5[]