Sony MHC-V42D - Servicing Notes

MHC-V42D
4
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the
leadfree 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
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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.
CAUTION
Use of controls or adjustments or performance of procedures
otherthanthosespeciedhereinmayresultinhazardousradiation
exposure.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
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exibleboardiseasilydamagedandshouldbehandledwith
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
onthe discreectivesurface bytheobjective lensinthe optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
CAUTION
The use of optical instruments with this product will increase eye
hazard.
For customers in AEP, UK
Thisapplianceisclassiedasa
CLASS 1 LASER product under
IEC 60825-1:2007 and IEC
60825-1:2014. This marking is
located on the rear exterior.
For customers in E93
Thisapplianceisclassiedasa
CLASS 1 LASER product under
IEC 60825-1:2007 and IEC
60825-1:2014.
This label is located on rear
surface of the product.
CAUTION
Risk of explosion if the battery is replaced by an incorrect type.
Do not expose batteries or appliances with battery-installed to
excessiveheat,suchassunshineandre.
MODEL IDENTIFICATION
MODEL NUMBER LABEL
– Rear View –
AEP, UK, RU, AR, E93, LA9, MY
TH
AUS, E12, E4
PART No.
Destination
PART No
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Destination Code
PART No.
Destination
SYSSET
2019/03/0500:47:46(GMT+09:00)