Sharp DV-NC65H Manual de usuario

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

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

DV-NC65H/S

DV-NC70H

2. FEATURES

ËË

ËCommon Features

• A DVD, CD player and VCR all in one.

• Simultaneous VCR recording and DVD playback.

ËË

ËVCR

• 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

ËË

ËDVD

• 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

*1Manufactured 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)

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 75Ω

Video Input Input level: 0.5 to 2.0 Vp-p (75Ω)

Video Output Output level: 1.0 Vp-p (75Ω)

Audio Output Input level: –3.8 dBs (47kΩ)

(0 dBs = 0.775 Vrms)

Audio Output Output level: –3.8 dBs (1kΩ)

(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 (75Ω)

S video output Y output level: 1 Vp-p (75Ω)

C output level: 0.3 Vp-p (75Ω)

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 5 °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 W × H × D: 430 mm × 93.5 mm × 350 mm (DV-NC65H/S)

W × 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.

DV-NC65H/S

DV-NC70H

OPEN/CLOSE

OPERATE

EJECT/STOP

REW PLAY/X2

REC

VCR/DVD

SELECTOR

TIMER

VCR DVD

PLAY STOP

LINE IN 3 VIDEO L - AUDIO - R

DV-NC65H

DVD / CD PLAYER

PAL

DVD Main Unit (Front)

DVD Front Panel Display

You can toggle between 1and 2by

pressing the remote control unit’s

DISPLAY button.

VCR/DVD

Selector/Indicator

Disc tray

Disc operation buttons

(PLAY, STOP)

A B

TITLE TRACK CHAPTER TOTAL PROGRAM

VIRTUAL

ANGLE

Operation status/Time indicator

TITLE

indicator

TRACK

indicator

CHAPTER

indicator

PROGRAM indicator

VIRTUAL surround

indicator

REPEAT indicator

ANGLE indicator

OPEN/CLOSE

VCR DVD indicator

OPERATE

4. PART NAMES

OPEN/CLOSE

OPERATE

EJECT/STOP

REW PLAY/X2

REC

VCR/DVD

SELECTOR

TIMER

VCR DVD

PLAY STOP

LINE IN 3 VIDEO L - AUDIO - R

DV-NC65H

DVD / CD PLAYER

PAL

VCR Main Unit (Front)

VCR Front Panel Display

Front AUDIO/

VIDEO input

jack

EJECT/STOP

OPERATE

PLAY/X2

REC

REW

Cassette compartment

VCR/DVD SELECTOR

TIMER indicator

SEPVP D

VCR

VCR Mode

Indicator

Cassette-in Indicator

Timer Recording

Indicator

Tape Speeds

Indicator

Audio Output

Indicator

Video Programming System/

Programme Delivery Control

Indicator

Decoder Indicator

Recording Indicator

Clock Indicator

Channel Indicator

Tape Counter Indicator

Tape Status Indicator

Tape Remain Indicator

DV-NC65H (Front)

DV-NC65H/S

DV-NC70H

Main Unit (Rear)

VCR/DVD shared

AUDIO output jacks

ANTENNA IN (antena

or cable input)

OUTPUT SELECTOR

SCART LINE 2 socket

DVD AUDIO output jacks

VCR/DVD shared VIDEO

output jack

ANTENNA OUT

DVD S-VIDEO output jack

SCART LINE 1 (TV) socket

DVD DIGITAL AUDIO output jack

LINE 2

LINE 1 (TV)

S-VIDEO

OUTPUT

SELECTOR

RGB VIDEO

S-VIDEO

DIGITAL

AUDIO

VCR/DVD OUT

AUDIO

VIDEO

ANTENNA

OUT

DVD OUT

AUDIO

To an AC outlet

LINE 2

LINE 1 (TV)

S-VIDEO

OUTPUT

SELECTOR

RGB VIDEO

S-VIDEO

DIGITAL

AUDIO

VCR/DVD OUT

AUDIO

VIDEO

ANTENNA

OUT

DVD OUT

AUDIO

DV-NC65H (Rear)

DV-NC65H/S

DV-NC70H

Remote (VCR Operation Buttons)

»The explanations on this page use the VCR/DVD CHANGE Switch in the VCR position.

REV FWD

STOP

OPEN/

VCR/DVD

SELECTOR

VCR MENU

DVD SETUP

TAPE

SPEED

SCREEN

TITLE

DVD MENU

DISPLAY

FUNCTION

CONTROL

PROG/

REPEAT

ANGLE

CLEAR

RETURN

OPERATE

TIMER

ON/OFF

PLUSCODE

EJECT

SET

ENTER

ZERO BACK

SKIP SEARCH

TV/VCR

VCR DVDAM/PM

INPUT SELECT

PAUSE/STILL

REC

SLOW

VCR DVD

SKIP

DPSS

AUDIO

OUTPUT

VCR/ DVD COMBINATION

RRMCGA069WJSA

ON SCREEN

TIMER ON/OFF

OPERATE

DISPLAY

CLEAR

Number buttons

TAPE SPEED

VCR/DVD CHANGE Switch

PLUS CODE

VCR/DVD SELECTOR

EJECT

VCR MENU

SET

ZERO BACK

SKIP SEARCH

TV/VCR

INPUT SELECT

AUDIO OUTPUT

VCR DVD

CURSOR ( / / / )

CH /

STOP

REW

PAUSE/ STILL

REC

PLAY

AM/PM or

-/--

SLOW

—

, DPSS /

SLOW

PLAY

REV FWD

STOP

OPEN/

VCR/DVD

SELECTOR

VCR MENU

DVD SETUP

TAPE

SPEED

SCREEN

TITLE

DVD MENU

DISPLAY

FUNCTION

CONTROL

PROG/

REPEAT

ANGLE

CLEAR

RETURN

OPERATE

TIMER

ON/OFF

PLUSCODE

EJECT

SET

ENTER

ZERO BACK

SKIP SEARCH

TV/VCR

VCR DVDAM/ PM

INPUT SELECT

PAUSE/STILL

REC

SLOW

VCR DVD

SKIP

DPSS

AUDIO

OUTPUT

VCR/ DVD COMBINATION

RRMCGA069WJSA

ON SCREEN

OPERATE

DISPLAY

FUNCTION CONTROL

RETURN

TITLE

Number buttons

REV

STOP

CURSOR ( / / / )

VCR/DVD SELECTOR

PROG, REPEAT

ANGLE

PLAY

DVD MENU

OPEN/CLOSE

DVD SETUP

ENTER

PAUSE/ STILL

FWD

SLOW

VCR/DVD CHANGE Switch

SKIP

PLAY

Do not subject the Remote to shock, water or excessive humidity.

The Remote may not function if the Unit sensor is in direct sunlight or any other strong light.

Incorrect use of batteries may cause them to leak or burst. Read the battery warnings and use the batteries properly.

Do not mix old and new batteries, or mix brands in use.

Remove the batteries if you do not use the Remote for an extended period of time.

Remote (DVD Operation Buttons)

»The explanations on this page use the VCR/DVD CHANGE Switch in the DVD position.

DV-NC65H (Remote Control)

DV-NC65H/S

DV-NC70H

VCR Main Unit (Front)

VCR Front Panel Display

OPEN/CLOSE

OPERATE

EJECT/STOP

REW PLAY/X2

REC

VCR/DVD

SELECTOR

TIMER

VCR DVD

PLAY STOP

LINE IN 3 VIDEO L - AUDIO - R

DV-NC65S

DVD / CD PLAYER

PAL

Front AUDIO/

VIDEO input

jack

EJECT/STOP

OPERATE

PLAY/X2

REC

REW

VCR/DVD SELECTOR

TIMER indicator

SEPVP D

VCR

VCR Mode

Indicator

Cassette-in Indicator

Timer Recording

Indicator

Tape Speeds

Indicator

Audio Output

Indicator

Video Programming System/

Programme Delivery Control

Indicator

Decoder Indicator

Recording Indicator

Clock Indicator

Channel Indicator

Tape Counter Indicator

Tape Status Indicator

Tape Remain Indicator

CH '/"

Cassette compartment

DV-NC65S (Front)

DVD Main Unit (Front)

DVD Front Panel Display

You can toggle between 1and 2by

pressing the remote control unit’s

DISPLAY button.

OPEN/CLOSE

OPERATE

EJECT/STOP

REW PLAY/X2

REC

VCR/DVD

SELECTOR

TIMER

VCR DVD

PLAY STOP

LINE IN 3 VIDEO L - AUDIO - R

DV-NC65S

DVD / CD PLAYER

PAL

OPERATE VCR/DVD

Selector/Indicator

Disc tray

Disc operation buttons

(PLAY, STOP)

VCR DVD indicator

A B

TITLE TRACK CHAPTER TOTAL PROGRAM

VIRTUAL

ANGLE

Operation status/Time indicator

TITLE

indicator

TRACK

indicator

CHAPTER

indicator

PROGRAM indicator

VIRTUAL surround

indicator

REPEAT indicator

ANGLE indicator

OPEN/CLOSE

DV-NC65H/S

DV-NC70H

DV-NC65S (Rear)

Main Unit (Rear)

VCR/DVD shared

AUDIO output jacks

ANTENNA IN (antena

or cable input)

OUTPUT SELECTOR

SCART LINE 2 socket

To an AC outlet

DVD AUDIO output jacks

VCR/DVD shared VIDEO

output jack

ANTENNA OUT

DVD S-VIDEO output jack

SCART LINE 1 (TV) socket

DVD DIGITAL AUDIO output jack

LINE 2

LINE 1 (TV)

S-VIDEO

OUTPUT

SELECTOR

RGB VIDEO

S-VIDEO

AUDIO

VCR/DVD OUT

AUDIO

VIDEO

ANTENNA

OUT

DVD OUT

LINE 2

LINE 1 (TV)

S-VIDEO

OUTPUT

SELECTOR

RGB VIDEO

S-VIDEO

AUDIO

VCR/DVD OUT

AUDIO

VIDEO

ANTENNA

OUT

DVD OUT

AUDIO

DV-NC65H/S

DV-NC70H

Remote (VCR Operation Buttons)

»The explanations on this page use the VCR/DVD CHANGE Switch in the VCR position.

REV FWD

OPEN/

VCR/DVD

SELECTOR

VCR MENU

DVD SETUP

TAPE

SPEED

SCREEN

TITLE

DVD MENU

DISPLAY

FUNCTION

CONTROL

PROG/

REPEAT

ANGLE

CLEAR

RETURN

OPERATE

TIMER

ON/OFF

SHOWVIEW

EJECT

SET

ENTER

ZERO BACK

SKIP SEARCH

TV/VCR

VCR DVDAM/PM

INPUT SELECT

PAUSE/STILL

REC

SLOW

VCR DVD

SKIP

DPSS

AUDIO

OUTPUT

VCR/ DVD COMBINATION

RRMCGA055WJSA

ON SCREEN

TIMER ON/OFF

OPERATE

DISPLAY

CLEAR

Number buttons

TAPE SPEED

VCR/DVD CHANGE Switch

HOW

IEW

VCR/DVD SELECTOR

EJECT

VCR MENU

SET

ZERO BACK

SKIP SEARCH

TV/VCR

INPUT SELECT

AUDIO OUTPUT

VCR DVD

CURSOR ( / / / )

CH /

STOP

REW

REC

PLAY

AM/PM or

-/--

SLOW

—

, DPSS /

SLOW

PLAY

STOP

PAUSE/ STILL

REV FWD

STOP

OPEN/

VCR/DVD

SELECTOR

VCR MENU

DVD SETUP

TAPE

SPEED

SCREEN

TITLE

DVD MENU

DISPLAY

FUNCTION

CONTROL

PROG/

REPEAT

ANGLE

CLEAR

RETURN

OPERATE

TIMER

ON/OFF

SHOWVIEW

EJECT

SET

ENTER

ZERO BACK

SKIP SEARCH

TV/VCR

VCR DVDAM/ PM

INPUT SELECT

PAUSE/STILL

REC

SLOW

VCR DVD

SKIP

DPSS

AUDIO

OUTPUT

VCR/ DVD COMBINATION

RRMCGA055WJSA

ON SCREEN

OPERATE

DISPLAY

FUNCTION CONTROL

RETURN

TITLE

Number buttons

REV

STOP

CURSOR ( / / / )

VCR/DVD SELECTOR

PROG, REPEAT

ANGLE

PLAY

DVD MENU

OPEN/CLOSE

DVD SETUP

ENTER

PAUSE/ STILL

FWD

SLOW

VCR/DVD CHANGE Switch

SKIP

PLAY

»Do not subject the Remote to shock, water or excessive humidity.

»The Remote may not function if the Unit sensor is in direct sunlight or any other strong light.

»Incorrect use of batteries may cause them to leak or burst. Read the battery warnings and use the batteries properly.

»Do not mix old and new batteries, or mix brands in use.

»Remove the batteries if you do not use the Remote for an extended period of time.

Remote (DVD Operation Buttons)

»The explanations on this page use the VCR/DVD CHANGE Switch in the DVD position.

DV-NC65S (Remote Control)

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