Read Sony CDX-G1003ER / CDX-G1003UR / CDX-G1053UR Service Manual online
CDX-G1003ER/G1003UR/G1053UR
3
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
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.
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.
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.
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical
pick-up block.
optical pick-up
semi-fixed resistor
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
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)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
• 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.
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
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.
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.
also be added to ordinary solder.
Ver. 1.1
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.
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.
•
Distinguish method by serial No.
(Serial No. is printed on the bottom side of this unit)
Model
Destination
Type A
Type B
CDX-G1003ER
Russian
1502246 or
smaller
1502247 or
larger
CDX-G1003UR
Russian
1500520 or
smaller
1500521 or
larger
CDX-G1053UR
E
1504311 or
smaller
1504312 or
larger
•
Distinguish method by existence of IC.
– MAIN Board (Component Side) –
Type A : IC1301/1304 mount
Type B : IC1301/1304 no mount
Type B : IC1301/1304 no mount
IC1301
IC1304
1-888-974-21
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