DV-740 (serv.man17). Complete - Sharp DVD Service Manual (repair manual)

dv-740 (serv.man17) service manual
Model
DV-740 (serv.man17)
Pages
94
Size
21.27 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Complete
File
dv-740-sm17.pdf
Date

Read Sharp DV-740 (serv.man17) Service Manual online

1
DV-740H/S(Y,F,S,R)
SX1C5DV-740SX
SERVICE MANUAL
MODELS
Page
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS ......................................................................... 2
2. FEATURES ....................................................................................................................................... 3
3. SPECIFICATIONS ............................................................................................................................ 3
4. PART NAMES ................................................................................................................................... 4
5. REMOTE CONTROL UNIT ............................................................................................................... 6
  6. EXTENSION CABLE USE POINT (FOUR PLACES) ......................................................................... 7
7. SERVICE (TROUBLE SHOOTING FLOW CHART) .......................................................................... 8
8. NORMAL WAVEFORM ................................................................................................................... 11
9. IC FUNCTION LIST ......................................................................................................................... 19
10. BLOCK CIRCUIT SCHEMATIC DIAGRAMS ................................................................................... 30
11. MAINBOARD ................................................................................................................................... 52
12. DISPLAY/OPTION BOARD ............................................................................................................. 58
13. POWER BOARD ............................................................................................................................. 60
14. SCART BOARD ............................................................................................................................... 62
15. REPLACEMENT PARTS LIST/EXPLODED  VIEWS ....................................................................... 64
16. PACKING OF THE SET .................................................................................................................. 69
17. LOADER  SET ................................................................................................................................. 71
 CONTENTS
In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
SERVICE MANUAL
DVD VIDEO PLAYER
MODELS DV-740H/740S(Y,F,S,R)
DVD VIDEO PLAYER
SHARP CORPORATION
DV-740H
DV-740S(Y,F,S,R)
SHARP
DV-740H/S(Y,F,S,R)
2
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS
Power Lead Protection
To avoid any malfunctions of the unit, 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 lead.
Keep the AC power lead away from heating
appliances.
Never put any heavy object on the AC power lead.
 Do not attempt to repair or reconstruct the AC
      power lead in any way.
Note:
This unit can be used only where the
power supply is AC 220V-240V, 50/60Hz. 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
PLAYER 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: AlGalnP
Wave length: 635 nm
Emission Duration: Continuous
     Laser output: Max. 0.5 mW
This player 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.
CLASS 1
LASER PRODUCT
DVD LOADER
Model No: SL-120H
Rating: 5V==0.6A
12V==1.2A
CLASS 1 LASER PRODUCT
“Complies with FDA radiation performance
standards, 21 CFR Subchapter J”
DANGER-
VISIBLE AND INVISIBLE LASER RADIATION
WHEN OPEN, AVOID DIRECT EXPOSURE TO
BEAM.
(Rear of product)
3
DV-740H/S(Y,F,S,R)
 Playback of DVD, VIDEO CD, and Audio CD
 Dolby Digital*
2
, DTS*
3
, MPEG Audio digital out
*
1
Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol (        ) are trademarks of Dolby
Laboratories.
*
2
"DTS" and "DTS Digital Surround" are trademarks of Digital Theater Systems, Inc.
2. FEATURES
3. SPECIFICATIONS
  Specifications are subject to change without notice.
 Weight and dimensions are approximate.
 Digital Output (Linear PCM)
  
The digital output format (optical or coaxial) used in this Player is linear PCM audio sampled at 44.1 kHz or 48 kHz.
  Linear PCM sound for DVD video discs sampled at 96 kHz cannot be output digitally.
  Check the disc jacket for information on the audio sampling used.
TYPE
SPECIFICATION
Power Supply type
Switch Mode Power Supply
Input Voltage
AC 220V~240V(Auto Voltage Swithcing)
Mains Frequency
50/60Hz
Standby Power Consumption
Less than 5W
Power Rating
Less than 20W
Signal System
NTSC/PAL
Disc compatibility
DVD,VCD,VCD2.0,SVCD,CD-DA,MP3,
CD-R,CD-RW
Operating Temperature Range
+5°C ~ +40°C
Media Format
(1)DVD
single side/single layer ;single side/double layer
double side/single layer ;double side/double layer
(2)CD-DA
12cm CD
8cm CD
CD-R
CD-RW
(3)MP3
(4)VCD
Video Signal
Composite Output Level: 1.0±0.15Vp-p(75ohm)
S-Video Output Level:
Y
1.0±0.15Vp-p
C
0.286±0.05Vp-p
BURST
0.30±0.06V
Y.U.V Output Level:
Y-CH
1.0±0.15Vp-p
U-CH
1.0±0.15Vp-p
V-CH
1.0±0.15Vp-p
R.G.B Output Level:
1.0±0.15Vp-p
1.0±0.15Vp-p
1.0±0.15Vp-p
Remark:The video output connectors are optional in line with various models of products.
Audio Signal
Output Level:
2.0±0.2 Vrms(at 1KHz)
Freq Resp
±1dB
S/N
105dB
Dynamic Range(1kHz)
96dB
Distortion&Noise(1kHz)
≤≤≤≤≤
-65dB
Digital Output
Coaxial
Remark:The digital output connectors are optional in line with various models of products.
DV-740H/S(Y,F,S,R)
4
For details on the use of each control.
4. PART NAMES
3-1. ACCESSORIES
Accessories:
Video/Audio(L/R) cable x 1, AAA (UM4) batteries x 2, Remote control unit x 1,
Operation Manual x 1,
1.
OPERATE  Switch Button
Turn the unit’s power on and off.
2.
OPEN/CLOSE  Button
Open or closes the disc tray.
3.      Disc Tray
To place DVD, VCD, Audio CD, and MP3 discs on.
4.
STOP  Button
Stop playback.
5.
PLAY  Button
 Play the inserted disc.
6.      STANDBY Indicator
 LED Indicator of Standby mode.
7.      Display Window
         Display operation information.
8.
SKIP  Button
Go to the previous chapter/track during playback with DVD/
VCD/Audio CD.  It functions as “Go to the previous page” in
the PBC menu with VCD discs.
9.
REV  Button
Reverse scans.
10.
FWD  Button
Forward scan.
11.
SKIP  Button
Go to the next chapter/track during playback with DVD/
VCD/Audio CD.  It functions as “Go to the next page” in
the PBC menu with VCD discs.
4-1 Main Unit(Front)
1.
Disc inside indicator
2.
DTS
®
 Digital Audio Indicator
Indicate the disc played contains DTS
®
 Digital audio encoding.
3.
Title/Track Number Indicator
Some DVDs contain multiple title pages. This indicator
displays the title number currently in use or track number
(Audio CD) currently playing.
4.
SVCD/Audio CD/VCD Indicator
Identfy the inserted disc as audio SVCD and Audio CD or
Video CD.
5.
Dolby
®
 Digital Audio Indicator
Indicate the played disc contains Dolby
®
 Digital Audio
encoding data.
6.
DVD Indicator
Identfy the inserted disc as a DVD disc.
7.
PBC Indicator for VCD Disc
Playback Cntrol indicator.
8.
MP3 Indicator
Identfy the inserted disc as a MP3 disc.
9.
Analog Audio Output Indicator
Indicate the audio sound output from analog audio jacks
when playing back VCD/SCVD/Audio CD.
10.
Elapsed Playback Time/Remaining Playback Time
Indicator
Display elapsed playback time and playback remainder
time.
4-2 Front panel Display in Main Unit
 
Page of 94
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Download Sharp DV-740 (serv.man17) Service Manual (Repair Manual)

Here you can read online and download Sharp DV-740 (serv.man17) Service Manual in PDF. DV-740 (serv.man17) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp DV-740 (serv.man17) 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.