Sharp DV-NC100X User manual

1
DV-NC100X
S64U9DV-NC100
SERVICE 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.
MODEL
SERVICE MANUAL VCR/DVD COMBINATION MODEL DV-NC100X
VCR/DVD COMBINATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
DV-NC100X
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
CONTENTS
PAL
4The region number for this
VCR/DVD is 4.

MAIN SECTION
VCR/DVD COMBINATION
DV-NC100X
TABLE OF CONTENTS
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 H9745SP
SPECIFICATIONS
Description Unit Minimum Nominal Maximum Remark
1.Video
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/NY (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. Servo
2-1. Jitter Low µsec 0.07 0.12
2-2.Wow & Flutter % 0.3 0.6
3. Normal Audio
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.Tuner
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. Hi-Fi Audio
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
< VCR Section >
TAPE SPEED: SP
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 H9745SP
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : AC220 V - 240 V ~ 50Hz
3. Load imp. : 100 k ohm
4. Room ambient : 5 °C ~ 40 °C
5. Power consumption: 21 W (Standby: 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 ΩVpp 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
< DVD Section >

1-2-1 DVD_LASER
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against
your skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your
eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
D
rive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable

1-3-1 E5752IMP
1. IMPORTANT SERVICE NOTES
BEFORE RETURNING THE DVD VIDEO PLAYER
Before returning the DVD video player to the user,
perform the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the DVD video
player.
2. Inspect all protective devices such as non-metallic
control knobs, insulation materials, cabinet backs,
adjustment and compartment covers or shields, isola-
tion resistor/capacitor networks, mechanical insula-
tors etc.
3. To be sure that no shock hazard exists, check for
current in the following manner.
Plug the AC line cord directly into a 230 volt AC outlet
(Do not use an isolation transformer for this test).
Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series with
all exposed metal cabinet parts and a known earth
ground, such as a water pipe or conduit.
UseanDVMor VOM with 1000 ohm per volt, or higher,
sensitivity or measure the AC voltage drop across the
resistor (See Diagram).
Move the resistor connection to earth exposed metal
part having a return path to the chassis (metal cabinet,
screw heads, knobs and control shafts, etc.) and
measure the AC voltage drop across the resistor.
Reverse the AC plug on the set and repeat AC voltage
measurements for each exposed part. Any reading of
1.4Vrms(thiscorrespondsto 0.7mA rms AC.) or more
is excessive and indicates a potential shock hazard
which must be corrected before returning the DVD
video player to the owner.
1. NOTES DE SERVICE IMPORTANTES
AVANT DE RENDRE LE REPRODUCTOR DE VíDEO
DVD
AvantderendrelereproductordevídeoDVDàl’utilisateur,
effectuer les vérifications de sécurité suivantes.
1. Vérifier toutes les gaines de fil pour être sûr que les fils
ne sont pas pincés ou que le matériel n’est pas coincé
entre le châssis et les autres pièces métalliques dans le
reproductor de vídeo DVD.
2. Vérifier tous les dispositifs de protection tels que les
boutons de commande non métalliques, les matériaux
d’isolement, le dos du coffret, les couvercles de
compartiment et ajustement ou les boucliers, les
réseaux de résistance / condensateur d’isolement, Ies
isolateurs mécaniques, etc.
3. Pourêtresûrqu’iln’yaaucunrisquedechocélectrique,
vérifier le courant de fuite de la maniére suivante.
Brancher le cordon d’alimentation secteur directement
dans une prise de courant de 230 volts. (Ne pas utiliser
de transformateur d’isolement pour cet essai).
Utiliser deux fils à pinces et connecter une résistance
de10watts1,5kohmenparallèleavecuncondensateur
de0,15µFensérieavecdespiècesducoffretmétallique
exposées et une masse de terre connue telle qu’un
tuyau ou un conduit d’eau.
Utiliser un DVM ou VOM avec une sensibilité de 1000
ohms par volt ou plus ou mesurer la chute de tension
CA entre la résistance (voir diagramme).
Déposer la connexion de la résistance à toutes les
pièces métalliques exposées ayant un parcours de
retour au châssis (coffret métallique, tétes de vis, bou-
tons et arbres de commande, etc.) et mesurer la chute
de tension CA entre la résistance. Inverser la fiche CA
(une fiche intermédiaire non polarisée doit être utilisée
à seule fin de faire ces vérifications.) sur l’appareil et
répéter les mesures de tension CA pour chaque piéce
métallique exposée. Toute lecture de 1,4 V rms (ceci
correspond à 0,7 mA rms CA) ou plus est excessive et
signale un danger de choc qui doit être corrigé avant de
rendre le reproductor de vídeo DVD à son utilisateur.
IMPORTANT SAFEGUARDS AND PRECAUTIONS
VTVM
AC SCALE
1.5k ohms
10W
CONNECT TO
KNOWN EARTH
GROUND
TO EXPOSED
METAL PARTS
TEST PROBE
0.15 F
SSVM
AC SCALE
2k ohms.
10W
0.15
TEST PROBE
T
O EXPOSED
M
ETAL PARTS
CONNECT TO
KNOWN EARTH
GROUNG
F

1-4-1 DVD_NOTE2
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indicated
as shown.
Top View
Out In
Bottom View
Input
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
5
10
Pin 1
< Bottom View >
c. The 1st pin of every male connector is indicated as
shown.
Pin 1
< Bottom View >
Instructions for Connectors
1. When you connect or disconnect the FFC (Flexible
Foil Connector) cable, be sure to first disconnect the
AC cord.
2. FFC (Flexible Foil Connector) cable should be in-
serted parallel into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder,
apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to
cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is
higherthantheleadwiresolder by 40°C,werecommend
you to use a dedicated soldering bit, if you are not
familiar with how to obtain lead-free wire solder or
soldering bit, contact our service station or service
ranch in your area.
Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is
about 220°C which is higher than the conventional lead
solder by 40°C, and as it has poor solder wettability, you
may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, Since the
land may be peeled off or the maximum heat-resistance
temperature of parts may be exceeded, remove the bit
from the PWB as soon as you confirm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the
soldering bit may be easily corroded. Make sure to turn
on and off the power of the bit as required. If a different
type of solder stays on the tip of the soldering bit, it is
alloyed with lead-free solder. Clean the bit after every
use of it.
When the tip of the soldering bit is blackened during
use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication
on the PWB silk.
Lead-free wire solder for servicing
STANDARD NOTES FOR SERVICING
Part No. Description Code
ZHNDAi123250E J 0.3mm 250g(1roll) BL
ZHNDAi126500E J 0.6mm 500g(1roll) BK
ZHNDAi12801KE J 1.0mm 1kg(1roll) BM

1-4-2 DVD_NOTE2
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:
(1)Prepare the hot-air flat pack-IC desoldering ma-
chine, then apply hot air to the Flat Pack-IC (about 5
to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
(2)Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. Do not supply hot air to the chip parts around the flat
pack-IC for over 6 seconds because damage to the
chip parts may occur. Put masking tape around the
flat pack-IC to protect other parts from damage.
(Fig. S-1-2)
2. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each pin
or the solder lands under the IC when removing it.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
With Soldering Iron:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you can
remove it easily. (Fig. S-1-3)
Flat Pack-IC Desoldering Braid
Soldering Iron
Fig. S-1-3
(2)Lift each lead of the flat pack-IC upward one by one,
using a sharp pin or wire to which solder will not
adhere (iron wire). When heating the pins, use a fine
tip soldering iron or a hot air desoldering machine.
(Fig. S-1-4)
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
(3)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you can
remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting point,
as shown in Fig. S-1-5.
(3)While heating the pins using a fine tip soldering iron
or hot air blower, pull up the wire as the solder melts
so as to lift the IC leads from the CBA contact pads
as shown in Fig. S-1-5.

1-4-3 DVD_NOTE2
(4)Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5)Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Note:
When using a soldering iron, care must be taken to
ensure that the flat pack-IC is not being held by glue.
When the flat pack-IC is removed from the CBA,
handle it gently because it may be damaged if force
is applied.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldeing Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
2. Installation
(1)Using desoldering braid, remove the solder from the
foil of each pin of the flat pack-IC on the CBA so you
can install a replacement flat pack-IC more easily.
(2)The “ ” mark on the flat pack-IC indicates pin 1. (See
Fig. S-1-7.) Be sure this mark matches the 1 on the
PCB when positioning for installation. Then presol-
der the four corners of the flat pack-IC. (See Fig. S-
1-8.)
(3)Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark. Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8

1-4-4 DVD_NOTE2
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occurduetoapotentialdifferencecausedbyelectrostatic
charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly
grounded to remove any static electricity that may be
charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate with
proper grounding (1MΩ) on the workbench or other
surface, where the semi-conductors are to be placed.
Because the static electricity charge on clothing will not
escape through the body grounding band, be careful to
avoid contacting semi-conductors with your clothing.
CBA
< Incorrect >
CBA
Grounding Band
Conductive Sheet or
Copper Plate
< Correct >

1-5-1 H9740PFS
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start and
End Sensors on this equipment. Carefully read and
follow the instructions below. Otherwise the unit may
operate erratically.
What to do for preparation
Insert a tape into the Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into the
Deck Mechanism Assembly. Make sure the power is on,
connect TP501 (S-INH) to GND. This will stop the
function of Tape Start Sensor, Tape End Sensor and
Reel Sensors. (If these TPs are connected before
plugging in the unit, the function of the sensors will stay
valid.) See Fig. 1.
Note: Because the Tape End Sensors are inactive, do
not run a tape all the way to the start or the end of the
tape to avoid tape damage.
PREPARATION FOR SERVICING
Q504
Q503
TP501 S-INH
Fig.
1

1-6-1 H9745IB
OPERATING CONTROLS AND FUNCTIONS
FRONT PANEL
1. OPERATE
To turn the unit ON or OFF.
The indicator is on when this unit is turned on.
2. Cassette Compartment
3. OPEN/CLOSE (DVD)
To open or close the disc tray.
4. VCR OUTPUT indicator
The indicator is on when this unit is in the VCR mode. Make
sure that this indicator is on before VCR operation.
5. DVD OUTPUT indicator
The indicator is on when this unit is in the DVD mode. Make
sure that this indicator is on before using the DVD player.
6. Disc tray
7. PLAY (DVD)
To begin disc playback.
8. STOP (DVD)
To stop playback.
9. OUTPUT
To select the DVD mode or VCR mode.
1
0. CHANNEL
To change TV channels.
To adjust the tracking manually during VCR playback
11. Display
1
2. Remote Sensor
PULL OPEN
DV-NC100
OPERATE
OPEN/CLOSE
PLAYSTOP
DVDVCRCH TIMER RECPLAYREW FF STOP/
EJECT
(TRACKING)
OUTPUT
6
3
9
1718
2
12
14 10
13
15
16
4 5
11 8 7
20 19
1
13. TIMER indicator
The indicator is on when the VCR/DVD is in standby mode
for a timer recording or during a One Touch Recording.
14. REC (VCR)
Press once to start recording or repeatedly to start One
Touch Recording.
The indicator is on during recording.
15. PLAY (VCR)
To begin tape playback
16. STOP/EJECT (VCR)
To stop playback.
To eject the tape in the Stop mode.
17. FF (VCR)
To fast forward the tape.
18. REW (VCR)
To rewind the tape.
19. AUDIO IN Jacks (AV2 / VCR only)
Connect audio cables coming from the audio out jacks of a
camcorder, another VCR, or an audio source here.
20. VIDEO IN Jack (AV2 / VCR only)
Connect a cable coming from the video out jack of a cam-
corder, another VCR or an audio-visual source (laser disc
player, video disc player, etc.) here.
2
1. MAIN (AC Power Cord)
Connect to a standard AC plug.
2
2. OPTICAL DIGITAL AUDIO OUT Jack (DVD Only)
Connect to a compatible Dolby Digital receiver. Use to con-
nect to a Dolby Digital decoder, DTS decoder or MPEG
decoder.
2
3. COAXIAL DIGITAL AUDIO OUT Jack (DVD Only)
Connect to a compatible Dolby Digital receiver. Use to con-
nect to a Dolby Digital decoder, DTS decoder or MPEG
decoder.
2
4. AUDIO OUT Jacks (ANALOG Left/Right) (DVD Only)
Connect to the Audio input jacks of A/V-compatible TV
2
5. S-VIDEO OUT Jack (DVD Only)
Use the S-Video cable to connect this jack to the S-Video
jack on your A/V-compatible TV or wide screen TV for a
higher quality picture.
2
6. COMPONENT VIDEO OUT Jacks (DVD Only)
Connect optional component video cables here and to the
component Video jacks of TV.
27. DVD/VCR AUDIO OUT Jacks
Connect the supplied audio cables here and to the Audio I
n
Jacks of a television or other audio equipment.
28. DVD/VCR VIDEO OUT Jack
Connect the yellow video cable (supplied) here snd to the
TV’s Video jack.
29. AUDIO IN Jacks (AV1 / VCR only)
Connect audio cables coming from the audio out jacks of
camcorder, another VCR, or an audio source here.
30. VIDEO IN Jack (AV1 / VCR only)
Connect cable coming from the video out jack of camcorde
r,
another VCR, or an audio-visual source (laser disc player,
video disc player, etc) here.
31. AERIAL Jack
Connect your antenna, Cable Box, or Direct Broadcast
System.
32. RF OUT Jack
Use the supplied round coaxial cable to connect this jack t
o
the ANTENNA IN Jack on your TV.
DVD DVD/VCR VCR
DIGITAL
AUDIO OUT AUDIO OUT S-VIDEO OUT
COMPONENT
VIDEO OUT
AUDIO OUT
VIDEO OUT
COAXIALOPTICAL
AUDIO IN
VIDEO IN
L
R
AERIAL
RF OUT
Y
C
B
L
R
L
R
C
R
2221
23 26 32
31
25
28
24 27 29
30
REAR VIEW

1-6-2 H9745IB
26. A-B REPEAT Button
Repeats playback of a selected section. (DVD)
27. REPEAT Button
Repeats playback of the current disc, title, chapter or
track. (DVD)
28. ENTER Button
Press to accept a setting. (DVD)
29. MENU Button
Press to display the DVD menus and MP3 file lists.
(DVD)
Press to display the VCR menu. (VCR)
30. DVD Button
Press to select DVD output mode and to use the remo
te
control in DVD mode
31. MODE Button
Activates programme playback or random playback
mode. (CD/ MP3/ JPEG)
Activates the 3D sound or Rapid Play. (DVD)
32. MARKER Button
Press to call back the Marker display. (DVD)
33. AUDIO Button
Press to select a desired audio language or sound
mode. (DVD)
Press to select a desired sound mode. (VCR)
34. OPEN/CLOSE/EJECT Button
Press to insert discs into or remove them from the tra
y.
(DVD)
Press to remove the tape from the VCR. (VCR)
35. SETUP Button
Press to enter the setup mode or to change setup
items. (DVD)
REMOTE CONTROL
1 2 3
6
54
7
0
+10
8 9
2
4
3
12
15
17
6
5
7
8
9
11
10
13
14
16
19
18
135
34
33
21
30
32
31
29
28
27
26
25
24
23
22
20
TAPE
SPEED
DIRECT
SKIP TIMER ON/OFF
CH
SLOW
SEARCH MODE
GAMMA
MENUTITLE
STILL/PAUSEREC/OTR
STOP
PLAY
FWD
REV
RETURN
SKIP
REPEAT
A-B REPEAT
CLEAR/C-RESET
ENTER
ZOOM
AUDIO
VCR
MARKER
DVD MODE
SETUP
SUBTITLE
OPEN/CLOSE
EJECT
ANGLE
DISPLAY
OPERATE
VCR/DVD COMBINATION
NA527AD
1. DISPLAY Button
Press to display the current playback mode.(DVD)
Press to display the current time, tape counter and
channel number.(VCR)
2.OPERATE Button
Press to turn the power on and off.
3. ANGLE Button
Press to change the camera angle to see the sequence
being played back from a different angle.(DVD)
4. SUBTITLE Button
Press to select a desired subtitle language or to change
the Panel Display settings. (DVD)
5. ZOOM Button
Enlarges part of a DVD-reproduced image.
6. VCR Button
Press to select VCR output mode and to use the remote
control in VCR mode.
7. TITLE Button
Displays the title menu.
8. ARROW Buttons ( )
(up/down/left/right) Press to select an item in the menu
and to move the cursor.
9. RETURN Button
Returns to the previous operation. (DVD)
1
0. Numerical Buttons
11. CLEAR/C-RESET Button
Press to clear the markers or the incorrect input. (DVD)
Press to reset the counter. (VCR)
1
2. PLAY Button
Press to begin playback.
1
3. REV Button
Fast reverse playback to a desired point.
1
4. REC/OTR Button
Press once to start recording or repeatedly to start One
Touch Recording. (VCR)
1
5. STOP Button
Press to stop playback. (DVD)
Press to stop playback or recording. (VCR)
1
6. DIRECT SKIP Button
Press to locate a desired point. (DVD)
1
7. TAPE SPEED Button
Press to select the VCR’s recording speed. (SP or LP)
1
8. GAMMA Button
Press to adjust the black parts of the picture brighter.
(DVD)
1
9. SEARCH MODE Button
Press to call up the index or time search menu. (VCR)
2
0. CH ( /) Button
Press to change TV channels or to adjust the tracking
manual on the VCR.
2
1. TIMER ON/OFF Button
Press to put the VCR into standby mode for a timer
recording.
2
2. SLOW Button
Press to view the video tape in slow motion.
2
3. STILL/PAUSE Button
Press to pause playback or to advance playback one
frame at a time. (DVD)
Press to pause playback or recording or to advance
playback one frame at a time. (VCR)
2
4. FWD Button
Fast forwards playback to a desired point.
2
5. SKIP ( / ) Buttons
Press to skip Chapters or Tracks. (DVD)

1-6-3 H9745IB
1. Open the battery compartment cover.
2. Insert two “AA” size (R-6, UM/SUM3,
HP7 or similar) batteries, with each
one oriented correctly.
3. Close the cover.
NOTES:
Do not mix alkaline and manganese
batteries.
Do not mix old and new batteries.
Loading the Batteries
Display
Displays During Operation
Lights up when the inserted
disc is being played back.
Displays a type of the disc
which is inserted on the tray.
DVD : DVD
: Audio CD, MP3, JPEG,
Kodak Picture CD
VCD :Video CD
Lights up when the
A-B repeat function is on.
Lights up when the
repeat function is on.
GROUP
DVD
VCD
Lights up when
the ALL repeat
function is on.
Lights up when
playing back in
slow mode.(DVD or
Video CD)
Lights up
when the
inserted
disc comes
to a pause. Displays the elapsed time of
the title or track.The number of
a new title, chapter, or track is
displayed when a chapter or
track is switched.
No disc inserted or
cannot read
Tray open
Tray closed
Loading the Disc
Lights up when the playback
control is activated.
REC
Lights up during
playback when
the repeat
function is on.
Lights up when
the playback is
in still or slow
mode. Works as a tape counter (hour,
minute, second).
Also displays a channel number,
tape speed, remaining time for OTR
or current time.
Lights up
during a
recording.
Flashes
when a
recording i
s
paused.
Lights up when the timer
recording or an OTR
recording has been set.
Lights up when a tape
is inserted.
Lights up when the
inserted tape is
being played back.
DVD VCR
DVD
CD

1-7-1 H9745DC
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and dress
the cables as they were originally.
1: Identification (location) No. of parts in the figures
2: Name of the part
3: Figure Number for reference
4: Identification of parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or de-
soldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector,
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g.5(S-1) = five Screws (S-1),
2(L-2) = two Locking Tabs (L-2)
5: Refer to "Reference Notes."
2. Disassembly Method
[1] Top Case D1 7(S-1) -
[2] Front D2 *3(L-1), *3(L-2) 1
Assembly 1-1
1-2
[3] Top D2 3(S-2) -
Bracket
[4] DVD D3 4(S-3), *CN401, -
Mecha *CN601
Assembly
[5] Partition D3 2(S-4) -
Plate
[6] Loader D3 2(S-5) -
Holder
[1] Top Case
[2] Front Assembly
[3] Top Bracket
[4] DVD Mecha Assembly [7] DVD Main
CBA Unit
[5] Partition Plate
[6] Loader Holder
[10] Jack Cover
[12] Jack Cover
(RCA)
[11] Earth Plate
[8] VCR Chassis Unit
[9] Deck Assembly
[15] DVD Open/Close CBA
[13] Main CBA
[14] Power SW CBA
[7] DVD Main D4 2(S-6), *CN201, 2
CBA Unit *CN301 2-1
2-2
3
[8] VCR D5 (S-7), (S-8), 2(S-9), -
Chassis (S-10), 5(S-11)
Unit
[9] Deck D6 Desolder, 4,5
Assembly (S-12), (S-13)
[10] Jack Cover D6 (S-15) -
[11] Earth Plate D6 ---------- -
[12] Jack Cover D6 2(S-16) -
(RCA)
[13] Main CBA D6 ---------- -
[14] Power SW D6 Desolder -
CBA
[15] DVD D6 Desolder -
Open/Close
CBA
↑↑↑ ↑ ↑
123 4 5
REMOVAL
ID/
LOC.
No.
Fig.
No.
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
Note
PART
REMOVAL
ID/
LOC.
No.
Fig.
No.
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
Note
PART

1-7-2 H9745DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Release three Locking Tabs (L-1).
1-2. Release three Locking Tabs (L-2), then remove
the Front Assembly.
CAUTION 2: Electrostatic breakdown of the laser diode
in the optical system block may occur as a potential
difference caused by electrostatic charge accumulated
on cloth, human body etc., during unpacking or repair
work.
To avoid damage of pickup follow next procedures.
2-1. Disconnect Connector (CN301). Remove two
Screws (S-6) and lift the DVD Main CBA Unit.
(Fig. D4)
2-2. Short the three short lands of FPC cable with
solder before removing the FFC cable (CN201)
from it. If you disconnect the FFC cable (CN201),
thelaserdiodeof pickupwillbedestroyed. (Fig.D4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D4)
4. When reassembling, solder wire jumpers as shown
in Fig. D6.
5. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. D6. Then, install the Deck Assembly while
aligning the hole of Cam Gear with the pin of LD-SW,
the shaft of Cam Gear with the hole of LD-SW as
shown in Fig. D6.
(S-1)
(S-1)
(S-1)
(S-1
)
Fig. D1
[1]Top Case
(S-2)
(S-2)
(L-1)
(L-2)
(L-1)
[2] Front
Assembly
[3]Top Blacket
Fig. D2
Fig. D3
[6] Loader
Holder [5] Partition
Plate
[4] DVD Mecha
Assembly
CN401CN601
(S-3)
(S-3)
(S-3)
(S-4)
(S-5)

1-7-3 H9745DC
CN201
CN301
(S-6)
(S-6)
A
[7] DVD Main
CBA Unit
View for A
Short the three short lands
by soldering.
(Either of two places.)
Short
lands
Short lands
FPC Cable
DVD Mecha
OR
Solder
Solder
Fig. D4
(S-11) (S-11)
(S-10)
(S-9)
(S-7)
(S-8)
Fig. D5
[8]VCR
Chassis Unit

1-7-4 H9745DC
(S-15)
(S-16)
[11]EARTH
PALTE
[10]JACK COVER
[12]JACK
COVER(RCA)
(S-16)
(S-12)
(S-13) [13] Main CBA
[14] Power
SW CBA
[9] Deck Assembly
[15] DVD
Open/Close CBA
FE Head Cylinder
Assembly
ACE Head
Assembly
Fig. D6
Desolder
Desolder
Lead with
blue stripe Lead with blue stripe
From
FE Head
BOTTOMVIEW
Lead connections of Deck Assembly and Main CBA
Desolder
From
Capstan
Motor
Assembly
Printing side Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly Lead with
blue stripe
Lead with
blue stripe
Desolder
Lead with
red stripe
[13] Main CBA
SW507
LD-SW
LD-SW Pin
Hole
Hole
Shaft
Cam Gear
[13] Main CBA
[9] Deck Assembly
Pin

1-7-5 H9745DC
HOW TO EJECT MANUALLY
1. Remove the Top Case.
2. Rotate the roulette in the direction of the arrow as shown below.
3. Pull the tray slowly with a hand.
A
View for A
Rotate this roulette in
the direction of the arrow
A
DVD Mecha

1-8-1 H9740EA
General Note: "CBA" is an abbreviation for
"Circuit Board Assembly."
NOTE:
1. Electrical adjustments are required after replacing
circuit components and certain mechanical parts. It
is important to do these adjustments only after all
repairs and replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
2. To perform these alignment / confirmation proce-
dures, make sure that the tracking control is set in
the center position: Press either "CHANNEL " or
"CHANNEL " button on the front panel first, then
the "PLAY" button on the front panel.
Test Equipment Required
1. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div.,
F-Range: DC~AC-20MHz
2. Alignment Tape (9HSFL6A) (Refer to "SERVICE
FIXTURE AND TOOLS" section.)
Head Switching Position
Adjustment
Purpose:
To determine the Head Switching position during
playback.
Symptom of Misadjustment:
May cause Head Switching noise or vertical jitter in
the picture.
Test point Adj.Point Mode Input
TP751(V-OUT)
TP504(RF-SW)
GND
VR501
(Switching Point)
(MAIN CBA)
Tape Measurement
Equipment Spec.
9HSFL6A Oscilloscope
Connections of Measurement Equipment
Oscilloscope
Main CBA
CH1 CH2
Trig. (+)
GND
TP504
TP751
PLAY
(SP) -----
(416 S 64 S)
6.5H 1H
ELECTRICAL ADJUSTMENT INSTRUCTIONS
EXT. Syncronize Trigger Point
1.0H
CH1
CH2
Switching Pulse
V-Sync
0.5H
6.5H±1H (416µs±64µs)
Figure 1
Reference Notes:
Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output waveform
is at the 6.5H±1H (416µs±64µs) delayed position from
the rising edge of the CH2 head switching pulse
waveform.