CDX-G1000U, CDX-G1000UE, CDX-G1001U, CDX-G1002U, CDX-G1050U, CDX-G1050UE, CDX-G1051U, CDX-G1070U, CDX-G1071U, CDX-G1080UM - Sony Car Audio Service Manual (repair manual). Page 3

The laser diode in the optical pick-up block may suffer electro-
static 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 fl exible board is easily damaged and should be handled with 
care.

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

If the optical pick-up block is defective, please replace the whole 
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical 
pick-up block.

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.

TYPE  A/B  DISCRIMINATION  OF  MAIN  BOARD
As for this unit, circuit on the MAIN board has been changed in the 
midway of production. Repair after distinguishing each type unit 
to doing the repair referring to the following.

CDX-G1000U

AEP, UK

1774954 or 

smaller

1774955 or 

larger

Russian

1620450 or 

smaller

1620451 or 

larger

CDX-G1000UE

Russian

1624970 or 

smaller

1624971 or 

larger

CDX-G1001U

AEP, UK

1775005 or 

smaller

1775006 or 

larger

CDX-G1002U

AEP, UK

1803255 or 

smaller

1803256 or 

larger

CDX-G1050U

E

1605800 or 

smaller

1605801 or 

larger

E (for CXS-G104SU) 1500000 or 

smaller

1500001 or 

larger

E (for CXS-G1016U) 1500000 or 

smaller

1500001 or 

larger

E (for CXS-G1069U) 1500000 or 

smaller

1500001 or 

larger

Saudi Arabia

1649656 or 

smaller

1649657 or 

larger

Mexican

1850585 or 

smaller

1850586 or 

larger

Argentina

1643884 or 

smaller

1643885 or 

larger

Korean

1642669 or 

smaller

1642670 or 

larger

CDX-G1050UE

Russian

1621450 or 

smaller

1621451 or 

larger

CDX-G1051U

E

1621750 or 

smaller

1621751 or 

larger

Saudi Arabia

1654494 or 

smaller

1654495 or 

larger

Korean

1654444 or 

smaller

1654445 or 

larger

CDX-G1070U

Indian

1617470 or 

smaller

1617471 or 

larger

CDX-G1071U

Indian

1654394 or 

smaller

1654395 or 

larger

CDX-G1080UM

Indian

1619850 or 

smaller

1619851 or 

larger