DV-HR480H (serv.man2) - Sharp DVD Service Manual (repair manual)

dv-hr480h (serv.man2) service manual
Model
DV-HR480H (serv.man2)
Pages
100
Size
21.52 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dv-hr480h-sm2.pdf
Date

Read Sharp DV-HR480H (serv.man2) Service Manual online

DV-HR400S/H
DV-HR450S
DV-HR480S/H
S35G9DV-HR400
SERVICE MANUAL
 CONTENTS
DVD  RECORDER
WITH HARD DISC
SHARP CORPORATION
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 4
3. SPECIFICATIONS ............................................................................................................................. 6
4. PART NAMES .................................................................................................................................... 9
5. DISASSEMBLY METHOD ............................................................................................................... 11
6. ELECTRICAL ADJUSTMENT METHOD ......................................................................................... 14
7. TROUBLESHOOTING ..................................................................................................................... 16
8. BLOCK DIAGRAMS ......................................................................................................................... 26
9. SCHEMATIC DIAGRAMS ................................................................................................................ 32
10. PRINTED WIRING BOARD ASSEMBLIES ..................................................................................... 78
11. REPLACEMENT PARTS LIST /  EXPLODED VIEWS .................................................................. 106
12. PACKING OF THE SET ................................................................................................................. 127
2
・ 
The region number
   for this Recorder is 2.
PAL
In the interests of user-safety (Required by safety regulations
in some countries) the set should be restored to its original
condition and only parts identical to those specified be used.
MODELS
DV-HR400S/H
DV-HR450S
DV-HR480S/H
2
DV-HR400S/H
DV-HR450S
DV-HR480S/H
Power Cord Protection
To avoid any malfunctions of the Recorder, and to
protect against electric shock, fire or personal injury,
please observe the following.
• Hold the plug firmly when connecting or
disconnecting the AC power cord.
• Keep the AC power cord away from heating
appliances.
• Never put any heavy object on the AC power cord.
• Do not attempt to repair or reconstruct the AC power
cord in any way.
• This Recorder is classified as a CLASS 1 LASER
product.
• The CLASS 1 LASER PRODUCT label is located on
the rear cover.
• This product contains a low power laser device. To
ensure continued safety do not remove any cover or
attempt to gain access to the inside of the product.
Refer all servicing to qualified personnel.
Note:
This Recorder can be used only where the power
supply is AC 220V-240V, 50Hz. It cannot be used
elsewhere.
CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR
PERFORMANCE OF PROCEDURES OTHER
THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
AS THE LASER BEAM USED IN THIS RECORDER
IS HARMFUL TO THE EYES, DO NOT ATTEMPT
TO DISASSEMBLE THE CABINET. REFER
SERVICING TO QUALIFIED PERSONNEL ONLY.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO
RAIN OR MOISTURE.
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, AND ANNOYING INTERFERENCE, USE
THE RECOMMENDED ACCESSORIES ONLY.
Laser Diode Properties
Material: DVD: AlGaInP
CD: GaAlAs
Wave length: DVD: 658nm
CD: 784nm
Emission Duration: Pulse
Laser output: Max. DVD: 100mW
CD: 255mW
DV-HR480S/H, DV-HR450S
DV-HR400S/H
1. IMPORTANT SERVICE NOTES
3
DV-HR400S/H
DV-HR450S
DV-HR480S/H
Precautions for using lead-free solder
1 Employing lead-free solder
"LCD PWB,Sub PWB,G-Link PWB,Power PWB,Operation (L) PWB,Operation (R) PWB,UV Tuner PWB,Main PWB"
of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and
service manuals. The alphabetical character following LF shows the type of lead-free solder.
Example:
2 Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40
°C, we recommend you
to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldening bit,
contact our service station or service ranch in your area.
3 Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220
°C which is higher than the conventional lead solder
by 40
°C, and as it has poor solder wettabillty, you may be apt to keep the soldering bit in contact with the PWB for
extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature
of parts may be excoeded, remove the bit from the PWB as soon as you conurm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to tum on
and off the power of the bit as required.
if a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after
every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Becareful when replacing parts with polarity indication on the PWB silk.
L
F a
Indicates lead-free solder of tin, silver and copper.
Part No.
Description
Code
ZHNDAi123250E
J
φ0.3mm
250g(1roll)
BL
ZHNDAi126500E
J
φ0.6mm
500g(1roll)
BK
ZHNDAi12801KE
J
φ1.0mm
1kg(1roll)
BM
Lead-free wire solder for servicing
Indicates lead-free solder of tin, silver and copper.
4
DV-HR400S/H
DV-HR450S
DV-HR480S/H
2. FEATURES
1
“DVD Multi-Play” can play 5 types
of recordable DVD discs
Besides DVD-RW, DVD-R, DVD+RW *
1
 and
DVD+R *
1
 discs, it can also play DVD-RAM *
2
 discs.
Even a DVD borrowed from a friend can be played
no matter what format it uses.
*1
Only the discs recorded in a video format and finalised
can be played.
*2
DVD-RAM Version 2 discs with a 4.7GB or 9.6GB
capacity which have been recorded using the VR system
of another DVD recorder. (To play a DVD-RAM disc,
remove the disc from its cartridge.)
2
Support for high-speed dubbing
*3
at up to 48x speed from the HDD
to DVD makes creating a video
library easy
High speed dubbing*
3
Enables high speed dubbing from hard disc to DVD
so you can enjoy creating your own video library.
Rate conversion dubbing
The mode can be selected from 32 levels just like
recording mode. This enables recording at the
optimal picture quality, given the remaining empty
space on the disc.
Exact dubbing
This automatically adjusts to the optimal record
mode so that the material is dubbed exactly into the
remaining area on the disc.
*3
To perform high-speed dubbing, you must use discs
conforming to Ver.1.1/2x, 1.2/2x or 1.2/4x for DVD-RW, or
Ver.2.0/4x or 2.0/8x for DVD-R. When using DVD-RW
Ver.1.1/2x and DVD-R Ver.2.0/4x, the maximum dubbing
speeds will be approximately 12x and 24x, respectively.
3
Progressive scanning playback
• Using Component Video Output, you can enjoy high
quality, high-density video with no jagged contours
and no flicker.
4
The GUIDE Plus+ system
The GUIDE Plus+® *
4
 system is an interactive on-
screen television programming guide integrated into
the Recorder. The system is available at no monthly
charge and offers programme listings for all major
channels received in your home, one-touch
recording, search by genre, recommendations
according to your profile and more. In this new era
of ever-increasing number of channels, the GUIDE
Plus+ system offers television viewers a convenient
way to find out what's on right now or in the next
week, by channel or by genre. The GUIDE Plus+
system also allows viewers to automatically set
their recording selections quickly and easily. The TV
listings information displayed in the GUIDE Plus+
system is obtained directly from sources in the
broadcasting industry. This information is received
and processed by Gemstar-TV Guide and “broad-
casted” via so called “Host Channels” directly to the
Recorder.
• You can also programme your Recorder for timer
recording simply by inputting the S
HOW
V
IEW
® *
4
programming number.
*
4
GUIDE Plus+, 
S
HOW
V
IEW
, VIDEO Plus+, G-LINK are (1)
registered trademarks or trademarks of, (2) manufactured
under license from and (3) subject of various international
patents and patent applications owned by, or licensed to,
Gemstar-TV Guide International, Inc. and/or its related
affiliates.
5
Built-in DV terminal for high
quality dubbing from digital video
camcorder (DV-HR480S/H,DV-
HR450S only)
You can connect to a digital video camcorder with
i.LINK to perform high quality digital video dubbing.
You can also operate camcorder playback functions
such as rewind, fast forward, and stop from the
control panel.
6
High picture quality design (Used
in all hard disc and DVD modes)
Progressive scanning playback
High-quality, high-density video with no jagged
contours and no flicker.
VBR (Variable Bit Rate) recording
Constantly maintains optimal high picture quality by
varying the bit rate (amount of video data) for each
scene depending on the video content (e.g.
whether movement is fast or slow).
Improved play noise reduction
3-dimensional DIGITAL NOISE REDUCTION: This
eliminates the noise contained in the brightness
signals and colour signals, and minimizes the rough
textures of images.
BLOCK NOISE REDUCTION: This cuts the amount
of block noise seen in the fast-moving images in
sports programmes, for example.
MOSQUITO NOISE REDUCTION: This reduces the
flicker noise that occurs in areas such as the
outlines of images.
Linear PCM recording
Linear PCM recording with high sound quality is
supported *
5
 to reproduce music programmes and
other such programmes with a clear sound quality.
*5
Supports only the XP mode.
The DV-HR480S/H,DV-HR450S,DV-HR400S/H DVD Recorder with Hard 
Disc realises easy programming with the GUIDE Plus+ system, and up to 
48x high-speed dubbing.
 
1
2
3
 
1
2
3
4
 
Page of 100
Display

Download Sharp DV-HR480H (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sharp DV-HR480H (serv.man2) Service Manual in PDF. DV-HR480H (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp DV-HR480H (serv.man2) DVD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.