DV-NC100H. Cover, Contents, , Laser beam safety precautions, Important safeguards and precautions, Standard notes for servicing, Preparation for servicing, Operating controls and functions, Cabinet disassembly instructions, Electrical adjustment instructions, Firmware renewal mode, Troubleshooting, Block diagrams, Function indicator symbols, Main Schematic diagram 1 9. - Sharp DVD Service Manual (repair manual)

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.

SERVICE MANUAL

VCR/DVD COMBINATION

MODEL  

DV-NC100H

MAIN SECTION

  1. SPECIFICATIONS ................................................................................................................................................ 1-1-1
  2. LASER BEAM SAFETY PRECAUTIONS ............................................................................................................. 1-2-1
  3. IMPORTANT SAFEGUARDS AND PRECAUTIONS ............................................................................................ 1-3-1
  4. STANDARD NOTES FOR SERVICING ................................................................................................................ 1-4-1
  5. PREPARATION FOR SERVICING ....................................................................................................................... 1-5-1
  6. OPERATING CONTROLS AND FUNCTIONS ...................................................................................................... 1-6-1
  7. CABINET DISASSEMBLY INSTRUCTIONS ........................................................................................................ 1-7-1
  8. ELECTRICAL ADJUSTMENT INSTRUCTIONS ................................................................................................... 1-8-1
  9. FIRMWARE RENEWAL MODE ............................................................................................................................ 1-9-1
10. TROUBLESHOOTING ........................................................................................................................................ 1-10-1
11. BLOCK DIAGRAMS ............................................................................................................................................ 1-11-1
12. FUNCTION INDICATOR SYMBOLS ................................................................................................................... 1-11-9
13. SCHEMATIC DIAGRAMS/ CBA’S AND TEST POINTS ..................................................................................... 1-12-1
14. WAVEFORMS ..................................................................................................................................................... 1-13-1
15. WIRING DIAGRAM ............................................................................................................................................. 1-14-1
16. IC PIN FUNCTION DESCRIPTIONS .................................................................................................................. 1-15-1
17. LEAD IDENTIFICATIONS ................................................................................................................................... 1-16-1
18. EXPLODED VIEWS ............................................................................................................................................ 1-17-1
19. MECHANICAL PARTS LIST ............................................................................................................................... 1-18-1
20. ELECTRICAL PARTS LIST ................................................................................................................................ 1-19-1

DECK MECHANISM SECTION

  1. STANDARD MAINTENANCE ............................................................................................................................... 2-1-1
  2. SERVICE FIXTURE AND TOOLS ........................................................................................................................ 2-2-1
  3. MECHANICAL ALIGNMENT PROCEDURES ...................................................................................................... 2-3-1
  4. DISASSEMBLY / ASSEMBLY PROCEDURES OF DECK MECHANISM ............................................................ 2-4-1
  5. ALIGNMENT PROCEDURES OF MECHANISM .................................................................................................. 2-5-1
  6. DECK EXPLODED VIEWS ................................................................................................................................... 2-6-1
  7. DECK PARTS LIST ............................................................................................................................................... 2-7-1

VIDEO Plus+ and PlusCode are registered 
trademarks of Gemstar Development Corporation. 
The VIDEO Plus+ system is manufactured under 
license from Gemstar Development Corporation.

PULL OPEN

OPERATE

OPEN/CLOSE

PLAY

STOP

DVD

VCR

TIMER

REC

PLAY

REW

STOP/
EJECT

(TRACKING)

OUTPUT

The region number for this 
VCR/DVD is 2.

FF

CH

  1. SPECIFICATIONS .......................................................................................... 1-1-1
  2. LASER BEAM SAFETY PRECAUTIONS ....................................................... 1-2-1
  3. IMPORTANT SAFEGUARDS AND PRECAUTIONS ...................................... 1-3-1
  4. STANDARD NOTES FOR SERVICING .......................................................... 1-4-1
  5. PREPARATION FOR SERVICING ................................................................. 1-5-1
  6. OPERATING CONTROLS AND FUNCTIONS ................................................ 1-6-1
  7. CABINET DISASSEMBLY INSTRUCTIONS .................................................. 1-7-1
  8. ELECTRICAL ADJUSTMENT INSTRUCTIONS ............................................. 1-8-1
  9. FIRMWARE RENEWAL MODE ...................................................................... 1-9-1
10. TROUBLESHOOTING .................................................................................. 1-10-1
11. BLOCK DIAGRAMS ...................................................................................... 1-11-1
12. FUNCTION INDICATOR SYMBOLS ............................................................. 1-11-9
13. SCHEMATIC DIAGRAMS/ CBA’S AND TEST POINTS ............................... 1-12-1
14. WAVEFORMS ............................................................................................... 1-13-1
15. WIRING DIAGRAM ....................................................................................... 1-14-1
16. IC PIN FUNCTION DESCRIPTIONS ............................................................ 1-15-1
17. LEAD IDENTIFICATIONS ............................................................................. 1-16-1
18. EXPLODED VIEWS ...................................................................................... 1-17-1
19. MECHANICAL PARTS LIST ......................................................................... 1-18-1
20. ELECTRICAL PARTS LIST ........................................................................... 1-19-1

1-1-1

H9741SP

    1-1. Video Output (PB)

Vp-p

0.8

1

1.2

9HSFL6A

9HSFL6M

W/O Burst

9HSFL6A

9HSFL6K

9HSFL6HA

    1-2. Video Output (R/P)

Vp-p

0.8

1

1.2

    1-3. Video S/N Y (R/P)

dB

40

43

    1-4. Video Color S/N AM (R/P)

dB

35

41

    1-5. Video Color S/N PM (R/P)

dB

33

38

    1-6. Resolution (PB)

Line

210

230

    2-1. Jitter Low

µ

sec

0.07

0.12

    2-2. Wow & Flutter

%

0.3

0.6

    3-1. Output (PB)

 dBV

-9

-4

-2

    3-2. Output (R/P)

dBV

-9

-4

-1

    3-3. S/N (R/P)

dB

36

40

    3-4. Distortion (R/P)

%

1.5

4

    3-5. Freq. resp (R/P) at 200Hz (PB)

dB

-6

-3

                (-20dB ref. 1kHz) at 8kHz (PB)

dB

-6

-3

5

5

    4-1. Video output

Vp-p

0.8

1

1.2

    4-2. Video S/N

dB

40

45

    4-3. Audio output

dB

-10

-6

-2

    4-4. Audio S/N

dB

40

50

    5-1. Output (PB)

dBV

-12

-9

-6

    5-2. Dynamic Range

dB

70

80

    5-3. Freq. resp (6dB B.W)

Hz

20 ~ 20K

Notes:
1. Nominal specs represent the design specs. All units should be able to approximate these – some will exceed and

some may drop slightly below these specs. Limit specs represent the absolute worst condition that still might be
considered acceptable; In no case should a unit fail to meet limit specs.

2. For test tapes, refer to "SERVICE FIXTURE AND TOOLS" section.

1-1-2

H9741SP

1. All Items are measured without pre-emphasis unless otherwise specified.

2. Power supply : AC220 - 240 V  ~ 50 Hz

3. Load imp. : 100 k ohm

4. Room ambient : 5 

°

C ~ 40 

°

C

5. Power consumption: 30 W (Standby: 5.5 W)

6. Weight: 6.84 lbs (3.2kg)

7. Dimension: 435  mm X 94 mm X 233 mm

ITEM

CONDITIONS

UNIT

NOMINAL

LIMIT

1 Video Output

75 

Ω

Vpp

1.0

±

0.1

2 Coaxial Digital Out

mVpp

500

3 Audio (PCM)

3-1. Output Level

1 kHz  0 dB

Vrm

2.0

3-2. S/N

dB

110

3-3. Freq. Response

DVD

fs=48 kHz 20 ~ 22 kHz

dB

±

1.5

CD

fs=44.1 kHz 20 ~ 22 kHz

dB

±

1.5

3-4. THD +N

DVD

1k Hz 0 dB

%

0.01

CD

1k Hz 0 dB

%

0.01