DSX-A100U, DSX-A102U - Sony Car Audio Service Manual (repair manual). Page 3

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.

Under normal conditions, the battery will last 
approximately 1 year. (The service life may be 
shorter, depending on the conditions of use.)
When the battery becomes weak, the range of the 
remote commander becomes shorter.

Danger of explosion if battery is incorrectly 
replaced. Replaced only with the same or 
equivalent type.

ˎ Keep the lithium battery out of the reach of children. 

Should the battery be swallowed, immediately 
consult a doctor.

ˎ Wipe the battery with a dry cloth to ensure a good 

contact.

ˎ Be sure to observe the correct polarity when installing 

the battery.

ˎ Do not hold the battery with metallic tweezers, 

otherwise a short-circuit may occur.

Battery may explode if mistreated.
Do not recharge, disassemble, or dispose of in 
fire.

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DESTINATION  ABBREVIATIONS
The following abbreviations for model destinations are used in this 
service manual.

• Abbreviations
 AR  : 

Argentina 

model

  EA 

: Saudi Arabia model

  IND 

: Indian model

  MX 

: Mexican model

  RU 

: Russian model

NOTE  OF  REPLACING  THE  COMPLETE  MAIN  BOARD  
OR  SYSTEM  CONTROLLER (IC501)
When the complete MAIN board or system controller (IC501) is 
replaced, the destination setting is necessary.

Set destination according to the procedure below.

1-1.  Setting the Destination Code
1.  In the state of source off (the clock is displayed), enter the test 

mode by pressing the buttons in order of the [

 4] 

t [5] t 

[PAUSE 6] (press only the [PAUSE 6] button for two seconds).

 

(Displayed characters/values in the following fi gure  are  ex-
ample)

2.  In the state in which the system controller version is displayed 

on the liquid crystal display (refer to following fi gure), enter 
the destination setting mode by pressing the buttons in order of 
the [

>

 

M

 SEEK+] 

t [SEEK– 

m

 

.

] 

t [PUSH ENTER/

MENU].

 

(Displayed characters/values in the following fi gure  are  ex-
ample)

3.  Input the alphanumeric character of 12 digits of “F   XXXXXX” 

displayed on the liquid crystal display, and execute the destina-
tion setting.

 

(Displayed characters/values in the following fi gure  are  ex-
ample)

Note: Refer to following “1-3. Entering the Destination Code” on page 4 

for operation method.

4.  The resetting operation is executed by pressing the [  OFF 

SRC] button for 1 second after the setting ends, and the unit 
returns to the normal condition.

 

(Displayed characters/values in the following fi gure  are  ex-
ample)

– Continued on next page –