DOWNLOAD Sharp DV-NC70H (serv.man9) Service Manual ↓ Size: 14.28 MB | Pages: 113 in PDF or view online for FREE

Model
DV-NC70H (serv.man9)
Pages
113
Size
14.28 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Complete
File
dv-nc70h-sm9.pdf
Date

Sharp DV-NC70H (serv.man9) Service Manual ▷ View online

1
DV-NC65H/S
DV-NC70H
SERVICE MANUAL
VCR/DVD COMBINATION MODEL
MODELS DV-NC65H/S/70H
S92P3DV-NC65H
SERVICE MANUAL
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS ............................................................................................................................. 3
4. PART NAMES .................................................................................................................................... 5
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME ............................................................. 14
6. DISASSEMBLY METHOD ............................................................................................................... 15
7. OPERATION OF PICKUP ............................................................................................................... 19
8. ADJUSTMENT, REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS ............................ 20
9. TEST MODE .................................................................................................................................... 43
10. MECHANISM OPERATION FLOWCHART AND TROUBLESHOOTING ....................................... 49
11.TROUBLESHOOTING ...................................................................................................................... 51
12. BLOCK DIAGRAMS ......................................................................................................................... 64
13. SCHEMATIC DIAGRAMS ................................................................................................................ 74
14. PRINTED WIRING BOARD ASSEMBLIES ..................................................................................... 96
15. REPLACEMENT PARTS LIST ...................................................................................................... 113
16. PACKING OF THE SET ................................................................................................................. 132
 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.
MODELS
DV-NC65H
DV-NC65S
DV-NC70H
VCR/DVD COMBINATION MODEL
SHARP CORPORATION
OPEN/CLOSE
OPERATE EJECT/STOP
REW
PLAY/X2
REC
CH
VCR/DVD
SELECTOR
TIMER
VCR   DVD
PLAY
STOP
LINE IN 3   VIDEO     L - AUDIO - R
/
DV-NC65
DVD / CD PLAYER
PAL
OPEN/CLOSE
OPERATE EJECT/STOP
REW
PLAY/X2
REC
CH
VCR/DVD
SELECTOR
TIMER
VCR   DVD
PLAY
STOP
LINE IN 3   VIDEO     L - AUDIO - R
/
DV-NC70H
DVD / CD PLAYER
PAL
DV-NC65H
DV-NC65S
DV-NC70H
2
DV-NC65H/S
DV-NC70H
Note:
This unit can be used only where the power
supply is AC 230V-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.
DO NOT STARE INTO THE LASER BEAM OR
VIEW WITH OPTICAL INSTRUMENT.
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: AlGaInP
Wave length: 650 nm
Emission Duration: Continuous
Laser output: Max. 0.7 mW
(Rear of product)
• This Unit 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.
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.
CLASS 1
LASER PRODUCT
VARO! AVATTAESSA OLET ALTTIINA LASERSÄTEILYLLE.
            ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN LÄPI.
VARNING - LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD.
                   STIRRA EJ IN STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM OPTISKT
                   INSTRUMENT.
1. IMPORTANT SERVICE NOTES
3
DV-NC65H/S
DV-NC70H
2. FEATURES
Ë
Ë
Ë
Ë
Ë Common Features
• A DVD, CD player and VCR all in one.
• Simultaneous VCR recording and DVD playback.
Ë
Ë
Ë
Ë
Ë VCR
•        Hi-Fi Stereo Sound/Double-Azimuth 4-Heads
• 1 minute Rewind (E-180)
• S-VHS Simple Playback
• HQ (High Quality) Circuitry
• Simple Recording Timer
• Sharp Super Picture
Ë
Ë
Ë
Ë
Ë DVD
• Plays DVD, CD (Digital Audio) discs as well as CD-R/CD-RW discs recorded in MP3 file format
• 3D Virtual Surround provides high-quality surround sound
• Digital Gamma correction
• Dolby Digital*
1
/DTS*
2
, MPEG Audio digital out capability
• High-quality digital images
• High-quality digital sound
*
1
Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are
trademarks of Dolby Laboratories.
*
2
"DTS" and "DTS Digital Surround" are trademarks of Digital Theater Systems, Inc.
3. SPECIFICATIONS
Signal System
PAL (DV-NC65H/70H)
PAL/MESECAM (DV-NC65S)
INPUT/OUTPUT JACKS
DVD/VCR shared output jacks
VIDEO jack: RCA Pin-jack
AUDIO jack: RCA Pin-jack
DVD output jacks
VIDEO jack: S-Video jack
AUDIO jack: RCA Pin-jack
DIGITAL AUDIO IF: Coaxial digital (DV-NC65H/S)
 : Coaxial digital and Optical digital (DV-NC70H)
AUDIO output jack: RCA Pin-jack
VIDEO input jacks
VIDEO jack: SCART
AUDIO jack: SCART
VIDEO jack: RCA Pin-jack
AUDIO jack: RCA Pin-jack
VCR
Video Recording System
Rotary Two-Head Helical Scanning
Number of Video Heads
4
Video Signal Standard
PAL Colour System (DV-NC65H/70H)
PAL/MESECAM Colour System (DV-NC65S)
Audio Recording System
1 Stationary Head for Linear Audio
2 Rotary Heads for Hi-Fi stereo
Tape Width
12.7 mm
Tape Speed (PAL)
(SP) 23.39 mm/sec.
(LP) 11.7 mm/sec.
(EP) 7.8 mm/sec.
(NTSC)
(SP) 33.35 mm/sec. (Playback only)
(LP) 16.67 mm/sec. (Playback only)
(EP) 11.12 mm/sec. (Playback only)
Recording/Playback Time
(SP) 240 min. (With E-240 Cassette)
(LP) 480 min. (With E-240 Cassette)
(EP) 720 min. (With E-240 Cassette)
4
DV-NC65H/S
DV-NC70H
3-1. ACCESSORIES
Accessories:
Remote control unit 
× 1, "AA" size battery (R-6, UM/SUM-3) × 2,
AV cable 
× 1, RF cable (75 Ohm, 1 m) × 1
Channel Coverage
UHF E21-E69 (DV-NC65H/70H)
VHF E2-E12 + S1-S41; UHF E21-E69 (DV-NC65S)
Antenna Input
75
Video Input
Input level: 0.5 to 2.0 Vp-p (75
Ω)
Video Output
Output level: 1.0 Vp-p (75
Ω)
Audio Output
Input level: –3.8 dBs (47k
Ω)
(0 dBs = 0.775 Vrms)
Audio Output
Output level: –3.8 dBs (1k
Ω)
(0 dBs = 0.775 Vrms)
Hi-Fi Audio
Dynamic Range: 90 dB
Frequency Response: 20 Hz-20 kHz
Memory Backup
10 minutes
DVD
DVD/VCR shared Video output
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)
Audio output
Output level: 2 Vrms (1 kHz, 0 dB)
Video signal horizontal resolution
500 lines (450 lines min.)
S/N ratio
60 dB (50 db min.)
Audio signal frequency characteristics
For DVD linear PCM playback:
4 Hz to 22 kHz (48 kHz sampling)
CD playback: 4 Hz to 20 kHz (JEITA)
S/N ratio
CD: 96 dB, 1 kHz (JEITA)
Dynamic range
DVD linear PCM: 96 dB (JEITA)
CD: 96 dB (JEITA)
Total harmonic distortion ratio
CD: 0.006% (JEITA)
Pickup
Wave length: 650 nm (DVD) / 780nm (CD)
Laser output: Max. 0.7 mW
Operating temperature
°C to 35 °C (41 °F to 95 °F)
Storage temperature
–20 
°C to 55 °C (–4 °F to 131 °F)
Power supply
230 V-240 V AC, 50 Hz
Power consumption
21 W
Dimensions
× H × D: 430 mm × 93.5 mm × 350 mm (DV-NC65H/S)
× H × D: 430 mm × 93.5 mm × 356 mm (DV-NC70H)
Weight
5.3 kg
Specifications are subject to change without notice.
Weight and dimensions are approximate.
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Sharp DV-NC70H (serv.man9) Service Manual ▷ Download

  • DOWNLOAD Sharp DV-NC70H (serv.man9) Service Manual ↓ Size: 14.28 MB | Pages: 113 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp DV-NC70H (serv.man9) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp DV-NC70H (serv.man9) DVD. Information contained in Sharp DV-NC70H (serv.man9) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.