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MHC-V71/V71D
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 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified 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 flexible 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 reflective 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.
For customers in AEP, UK
This appliance is classified as a
CLASS 1 LASER product under
IEC 60825-1:2007. This marking
is located on the rear exterior.
For customers in EA
This appliance is classified as a
CLASS 1 LASER product under
IEC 60825-1:2007. This marking
is located on the rear exterior.
PLAYABLE DISCS
• DVD VIDEO
• DVD-R/DVD-RW in DVD VIDEO format or video mode
• DVD+R/DVD+RW in DVD VIDEO format
• VIDEO CD (Ver. 1.0, 1.1, and 2.0 discs)
• Super VCD
• CD-R/CD-RW/CD-ROM in VIDEO CD format or super VCD
format
• AUDIO CD
• CD-R/CD-RW in AUDIO CD format
PLAYABLE FILES ON DISCS
• Music:
MP3 files (.mp3)
*1*2
• Video:
MPEG4 files (.mp4/.m4v)
*2*3
, Xvid files (.avi)
PLAYABLE FILES ON USB DEVICE
• Music:
MP3 files (.mp3)
*1*2
, WMA files (.wma)
*2
, AAC files (.m4a/
.mp4/.3gp)
*2
, WAV files (.wav)
*2
• Video:
MPEG4 files (.mp4/.m4v)
*2*3
, Xvid files (.avi)
*1
MP3 (MPEG 1 Audio Layer 3) is a standard format defined
by ISO/MPEG for compressed audio data. MP3 files must be
in MPEG 1 Audio Layer 3 format.
*2
Files with copyright protection (Digital Rights Management)
cannot be played back by the system.
*3
MPEG4 files must be recorded in MP4 file format. Supported
video codec and audio codec are as follows:
– Video codec: MPEG4 Simple Profile (AVC is not sup
-
ported.)
– Audio codec: AAC-LC (HE-AAC is not supported.)
Notes
• JIG
When disassembling the set, use the following jig (for front
panel removal).
Part No.: J-2501-238-A JIG FOR SPEAKER REMOVAL
Ver. 1.1
SYS SET
2018/05/30 01:52:46 (GMT+09:00)