Read Sharp DV-620 (serv.man2) Service Manual online
1
DV-620H
DV-620S
DV-620S
S70D9DV-620H/
DVD VIDEO PLAYER
SERVICE MANUAL
MODELS
Page
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS ......................................................................... 2
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS ............................................................................................................................. 3
4. PART NAMES .................................................................................................................................... 4
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ................................................................ 8
6. DISASSEMBLY AND REPLACEMENT OF MAIN PARTS ................................................................. 9
7. OPERATION OF PICKUP ................................................................................................................ 12
8. TEST MODE .................................................................................................................................... 13
9. TROUBLESHOOTING ..................................................................................................................... 16
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS ............................................................................................................................. 3
4. PART NAMES .................................................................................................................................... 4
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ................................................................ 8
6. DISASSEMBLY AND REPLACEMENT OF MAIN PARTS ................................................................. 9
7. OPERATION OF PICKUP ................................................................................................................ 12
8. TEST MODE .................................................................................................................................... 13
9. TROUBLESHOOTING ..................................................................................................................... 16
10. IC FUNCTION LIST .......................................................................................................................... 20
11. BLOCK DIAGRAMS ......................................................................................................................... 40
12. SCHEMATIC DIAGRAMS ................................................................................................................ 44
13. PRINTED WIRING BOARD ASSEMBLIES ...................................................................................... 54
14. SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................. 65
15. REPLACEMENT PARTS LIST ......................................................................................................... 67
16. PACKING OF THE SET ................................................................................................................... 80
11. BLOCK DIAGRAMS ......................................................................................................................... 40
12. SCHEMATIC DIAGRAMS ................................................................................................................ 44
13. PRINTED WIRING BOARD ASSEMBLIES ...................................................................................... 54
14. SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................. 65
15. REPLACEMENT PARTS LIST ......................................................................................................... 67
16. PACKING OF THE SET ................................................................................................................... 80
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.
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
DV-620H
DV-620S
DV-620S
SERVICE MANUAL
DVD VIDEO PLAYER
MODELS DV-620H/620S
SHARP CORPORATION
OPERATE
STANDBY
OPEN/CLOSE
JOG/S
2
NTSC/PAL
DV-620H
DV-620S
DV-620S
2
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS
Note:
This unit can be used only where the power
supply is AC 220V-240V, 50/60Hz. It cannot be
used elsewhere.
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.
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.
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.
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.
SHOCK, AND ANNOYING INTERFERENCE, USE
THE RECOMMENDED ACCESSORIES ONLY.
Laser Diode Properties
Material: AlGaInP
Wave length: 650 nm
Emission Duration: Continuous
Laser output: Max. 0.7 mW
Wave length: 650 nm
Emission Duration: Continuous
Laser output: Max. 0.7 mW
(Rear of product)
•
This Player is classified as a CLASS 1 LASER
product.
product.
•
The CLASS 1 LASER PRODUCT label is located
on the rear cover.
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.
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.
Power Lead Protection
To avoid any malfunctions of the unit, and to protect
against electric shock, fire or personal injury, please
observe the following.
against electric shock, fire or personal injury, please
observe the following.
•
Hold the plug firmly when connecting or
disconnecting the AC power lead.
disconnecting the AC power lead.
•
Keep the AC power lead away from heating appli-
ances.
ances.
•
Never put any heavy object on the AC power lead.
•
Do not attempt to repair or reconstruct the AC
power lead in any way.
power lead in any way.
CLASS 1
LASER PRODUCT
LASER PRODUCT
DV-620H
DV-620S
DV-620S
3
• Playback of DVD, VIDEO CD, and Audio CD
• Virtual Dolby Surround (QSURROUND*
• Virtual Dolby Surround (QSURROUND*
1
) for high-quality surround sound using analogue output
• Dolby Digital*
2
, DTS*
3
, MPEG Audio digital out
*
1
QSURROUND
TM
is a trademark of QSound Labs, Inc.
*
2
Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol ( ) are trademarks of Dolby
Laboratories.
Laboratories.
*
3
"DTS" and "DTS Digital Surround" are trademarks of Digital Theater Systems, Inc.
2. FEATURES
3. SPECIFICATIONS
Signal System: NTSC/PAL
Video output: Output jack: Phono/SCART
Output level: 1 Vp-p (75
Ω
)
S video output: Y output level: 1 Vp-p (75
Ω
)
C output level: 0.3 Vp-p (75
Ω
)
Output jack: S connector
Audio output: Output jack: Phono/SCART
Output level: 2Vrms (1 kHz, 0dB)
Digital audio output: Optical digital output: Optical jack
Coaxial digital output: Phono
Video signal horizontal resolution: 500 lines(DVD)
S/N ratio: 60 dB
Audio signal frequency characteristics: For DVD linear PCM playback:
4 Hz to 22 kHz (48 kHz sampling)
4 Hz to 44 kHz (96 kHz sampling)
CD playback: 4 Hz to 20 kHz (EIAJ)
4 Hz to 44 kHz (96 kHz sampling)
CD playback: 4 Hz to 20 kHz (EIAJ)
S/N ratio: CD: 105 dB, 1 kHz (EIAJ)
Dynamic range: DVD linear PCM: 94 dB (EIAJ)
CD: 94 dB (EIAJ)
Total harmonic distortion ratio: CD: 0.006% (EIAJ)
Pickup: Wave length: 650 nm
Laser output: Max. 0.7mW
Operating temperature: 5
°
C to 40
°
C
Storage temperature: –20
°
C to 55
°
C
Power supply : 220 V to 240 V AC, 50/60 Hz
Power consumption: 15W
Dimensions: 430 mm
×
80 mm
×
338 mm (W
×
H
×
D) (Including attachments)
Weight: 2.5 kg
Specifications are subject to change without notice.
Weight and dimensions are approximate.
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.
· 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.
3-1. ACCESSORIES
Accessories:
SCART lead x 1, UM3 battery x 2, Remote control unit x 1,
Operation Manual x 1, Quick Start Guide x 1, AC Cord x 1
DV-620H
DV-620S
DV-620S
4
For details on the use of each control.
4. PART NAMES
OPERATE
STANDBY
OPEN/CLOSE
JOG/S
Main Unit (Front)
Disc tray
Opens for loading or
removal of a disc.
removal of a disc.
OPEN/CLOSE
Press to open or close
the disc tray.
the disc tray.
OPERATE
Turns the power of the
Player on and off.
Player on and off.
Shuttle dial (JOG/S)
Moves back or forward
through the chapters or
tracks on a disc.
Turning this shuttle dial also
performs fast scanning and
slow-motion playback.
through the chapters or
tracks on a disc.
Turning this shuttle dial also
performs fast scanning and
slow-motion playback.
STANDBY LED indicator
When the Player is connected to the
AC main supply, this indicator lights up
in Standby mode and goes out when the
Player is turned on.
AC main supply, this indicator lights up
in Standby mode and goes out when the
Player is turned on.
PLAY
Starts playback.
STILL/PAUSE
Freezes the video image
on the screen and pauses
audio playback.
on the screen and pauses
audio playback.
STOP
Stops playback.
OPERATE
STANDBY
OPEN/CLOSE
JOG/S
Front panel Display in Main Unit
TITLE indicator
When a DVD is loaded in the
Player, this indicator appears
along with the title number.
Player, this indicator appears
along with the title number.
TRACK indicator
When a VIDEO CD or Audio CD
is loaded in the Player, this
indicator appears along with
the track number.
is loaded in the Player, this
indicator appears along with
the track number.
CHAPTER indicator
When a DVD is loaded in the
Player, this indicator appears
along with the chapter number.
Player, this indicator appears
along with the chapter number.
PROGRAM indicator
Displayed during programmed
playback.
playback.
REPEAT indicator
Displayed during repeat playback.
ANGLE indicator
Appears to indicate that multiple
camera angles are recorded in the
section of the DVD that is currently
playing.
camera angles are recorded in the
section of the DVD that is currently
playing.
60
VIRTUAL
surround indicator
surround indicator
Displayed while virtual
surround processing
is being performed.
surround processing
is being performed.
Operation status
Indicates the operation status
of the disc and Player.
of the disc and Player.
Time indicator
Indicates the elapsed playback
time of the disc. With some
discs, this area also shows
the total play time of the disc
when playback is stopped.
time of the disc. With some
discs, this area also shows
the total play time of the disc
when playback is stopped.