DV-HR300H. Complete — Sharp DVD Service Manual (repair manual)

Model
DV-HR300H
Pages
83
Size
10.63 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Complete
File
dv-hr300h.pdf
Date

View Sharp DV-HR300H Service Manual online

DV-HR300S/HR350S
DV-HR300H
DV-HR300X
S24O7DV-HR300
SERVICE MANUAL
 CONTENTS
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-HR300S
DV-HR300H
DV-HR300X
DV-HR350S
DVD VIDEO RECORDER
SHARP CORPORATION
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 4
3. SPECIFICATIONS ............................................................................................................................. 5
4. PART NAMES .................................................................................................................................... 7
5. DISASSEMBLY METHOD ................................................................................................................. 9
6. TROUBLESHOOTING ..................................................................................................................... 15
7. BLOCK DIAGRAMS ......................................................................................................................... 30
8. SCHEMATIC DIAGRAMS ................................................................................................................ 36
9. PRINTED WIRING BOARD ASSEMBLIES ..................................................................................... 62
10. REPLACEMENT PARTS LIST / EXPLODED VIEWS ..................................................................... 77
11. PACKING OF THE SET ................................................................................................................. 100
2
The region number
   for this recorder is 2
4
The region number
   for this recorder is 4
2
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
1. IMPORTANT SERVICE NOTES
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:
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
For DV-HR300S/H, HR350S
This Recorder can be used only where the power 
supply is AC 220V-240V, 50Hz. It cannot be used 
elsewhere.
For DV-HR300X
This Recorder can be used only where the power 
supply is AC 230V-240V, 50Hz. It cannot be used 
elsewhere.
3
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
Precautions for using lead-free solder
1 Employing lead-free solder
"Operation (R) PWB, Operation (L) PWB, Power PWB and Tuner 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
φ
0.3mm
250g(1roll)
BL
ZHNDAi126500E
J
φ
0.6mm
500g(1roll)
BK
ZHNDAi12801KE
J
φ
1.0mm
1kg(1roll)
BM
Lead-free wire solder for servicing
4
DV-HR300S/HR350S
DV-HR300H
DV-HR300X
2. FEATURES
z
z
z
z
z
DVD-RW/-R recording/playback with outstanding
compatibility
  »
This Recorder is compatible with digital recording on
rewritable DVD-RW discs and one-time recordable DVD-R
discs. It has two recording formats:
"VR (Video Recording) mode" which has a wealth of editing
functions, and "Video mode" which can be played back with
existing DVD players. This lets you enjoy recording and
dubbing to suit your purpose.
x
x
x
x
x
High picture quality design (Used in all hard disc
and DVD modes)
 »
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).
c
c
c
c
c
A variety of hard disc 
 DVD dubbing functions
 1
High speed dubbing
*1
Enables high speed dubbing from hard disc to DVD so you can enjoy
creating your own video library.
     
*1
For high speed dubbing, use discs conforming to DVDRW Ver. 1.1/
2X or DVD-R Ver. 2.0/4X.
 2
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.
 3
Exact dubbing
This automatically adjusts to the optimal record mode so that
the material is dubbed exactly into the remaining area on the
disc.
The time normally required for a program of an hour on High
Speed Dubbing to a double speed compatible disc
Recording Mode
Speed
Time Required
FINE
SP
LP
Appr ox. 2
Appr ox. 4
Appr ox. 8
Appr ox. 30 min
Appr ox. 15 min
Appr ox. 7.5 min
EP
Appr ox. 12
Appr ox. 5 min
v
v
v
v
v
"Time Shift Viewing", "Chasing Playback" and
"Simultaneous Recording/Playback" —functions
you can only get with a hard disc
 1
Time shift viewing
While you are watching a program, the phone rings.... At times
like this, you can pause the program being broadcast by
pressing a button, and then watch the rest of the program at
your leisure after you finish your phone call. You can also
switch to the current broadcast scene just by pressing
STOP/LIVE button.
 2
Chasing playback
You return home earlier than expected while timer recording
is in progress.... At times like this, you don't have to wait for
recording to end. You can immediately view the program from
the beginning.
 3
Simultaneous recording/playback
Even while recording to the hard disc, you can enjoy playback
of a DVD, or programs already recorded on hard disc.
You don't have to wait for recording to finish.
b
b
b
b
b
Comprehensive editing functions
(Only titles recorded on the hard disc or in VR mode on
DVD-RW can be edited.)
 1
Play list edit
This lets you gather only the needed parts (i.e. a "Play List")
from a recorded original video (title).
You can rearrange scenes and combine them with other
scenes, or rearrange titles. This is convenient when you want
to dub and save only the necessary scenes and titles.
 2
Chapter edit
This lets you divide a title into chapter units during recording/
playback or using the edit screen. After dividing, a list of
recordings (thumbnails) can be displayed in chapter units,
so you can copy, erase or dub to the play list in chapter units.
 3
Erase Scene
This lets you erase unnecessary scenes. This is convenient
when you want to cut out the commercials in a recorded
program before dubbing.
 4
Batch erasing of titles/chapters
Titles and chapters which become unnecessary after editing
can be batch erased by selecting them from the list of
recordings (thumbnails).
 5
Edit undo function
*2
If you mistakenly erase data during editing, this function lets
you restore it to its immediately preceding state, just like
"Undo" on a PC, so you can edit worry-free.
     
*2
Edit undo can only be used once. It only works when "UNDO"
is assigned to a coloured button (green) displayed on the
screen.
n
n
n
n
n
Simple operation and userfriendly design using a
new remote control
 1
START MENU
Press START MENU button on the remote control, and
display the list of main functions on the screen.
After that, you can operate by using the Cursor buttons and
SET/ENTER button on the remote control, so this Recorder
can be used easily even by a person who is unfamiliar with
operation.
 2
Coloured buttons
The remote control has coloured buttons with four different
colours. Functions are displayed in four different colours on
the screen, and the Recorder can be operated by directly
designating these functions.
 3
Luminous buttons
Luminous buttons are used for key control buttons on the
remote control so they are easy to see in the dark.
m
m
m
m
m
Digital connection (i.LINK) with a digital video/audio
source equipment
  »
The DV IN terminal allows you to uptake, edit and store
material from a digital camcorder equipped with a DV terminal.
Page of 83
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Download Sharp DV-HR300H Service Manual (Repair Manual)

Here you can view online or download Sharp DV-HR300H Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp DV-HR300H DVD. Information contained in Sharp DV-HR300H service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).