MEX-R1 - Sony Car Audio Service Manual (repair manual). Page 3

3

Label indication

Signal format

Region

Part No.

Country of

Destination

system

code

manufacture

PAL

2

2-581-683-0[]

MADE IN KOREA

AEP, UK models (made in Korean)

PAL

4

2-586-472-0[]

MADE IN KOREA

E: PAL, Korean models (mode in Korean)

NTSC

3

2-586-473-0[]

MADE IN KOREA

E: NTSC model (made in Korean)

PAL

2

2-634-044-0[]

MADE IN KOREA

Russian model (made in Korean)

PAL

6

2-669-590-0[]

MADE IN KOREA

Chinese model (made in Korean)

PAL

2

2-695-168-0[] MADE IN THAILAND AEP, UK models (made in Thailand)

PAL

2

2-695-209-0[] MADE IN THAILAND Russian model (made in Thailand)

NTSC

3

2-695-368-0[] MADE IN THAILAND E: NTSC model (made in Thailand)

PAL

4

2-695-375-0[] MADE IN THAILAND E: PAL model (made in Thailand)

PAL

6

2-695-413-0[] MADE IN THAILAND Chinese model (made in Thailand)

NTSC

1

2-698-267-0[] MADE IN THAILAND US, Canadian models (made in Thailand)

PAL

5

2-897-886-0[] MADE IN THAILAND Indian model (made in Thailand)

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

Never look into the laser diode emission from right above when
checking it for adjustment. It is feared that you will lose your sight.

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 flow)

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.

Part No.

Country of 

manufacture

Region Code

ARM

CUSHION

Former Type

Part No. & Description

2-187-147-21 ARM (PRESET)

2-590-340-02 CUSHION (COVER)

New Type

Part No. & Description

2-650-301-01 ARM (PRESET: MA)

2-639-280-01 CUSHION (ARM)

edge

cushion (cover)

edge

cushion (arm)

There are two types of arm (preset) in this set.
Before performing the repair, make sure which type it is, following the how to identify mentioned below.