Funai DPVR-7630-D Service manual
SERVICE MANUAL
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded views
I Parts List
When servicing the deck
mechanism, refer to MK14 Deck
Mechanism Section.
Deck Mechanism Part No.:
N25E0FL
DVD PLAYER &
VIDEO CASSETTE RECORDER
DPVR-7630D
DCVR-7830D
DBVR-7730D
PAL
SECAMPAL
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
DPVR-7630D/DCVR-7830D/DBVR-7730D
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Par ts L ist
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Laser Beam Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Electrical Adjustment Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
How to Initialize the DVD Player & VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Block Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Wiring Diagram < VCR Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Wiring Diagram < DVD Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-2
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Lead Identifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
Manufactured under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
SPECIFICATIONS
< VCR Section >
Description Unit Minimum Nominal Maximum Remark
1. Video
1-1. Video Output (PB) Vp-p 0.8 1.0 1.2 SP Mode
1-2. Video Output (R/P) Vp-p 0.8 1.0 1.2
1-3. Video S/N Y (R/P) dB 40 45
1-4. Video Color S/N AM (R/P) dB 37 41 SP Mode
1-5. Video Color S/N PM (R/P) dB 30 36 SP Mode
1-6. Resolution (PB) Line 230 245 SP Mode
2. Servo
2-1. Jitter Low µsec 0.07 0.12 SP Mode
2-2. Wow & Flutter % 0.3 0.5 SP Mode
3. Normal Audio
3-1. Output (PB) dBV -9 -4 -3 SP Mode
3-2. Output (R/P) dBV -9 -4 -1.5 SP Mode
3-3. S/N (R/P) dB 36 41 SP Mode
3-4. Distortion (R/P) % 1.0 4.0 SP Mode
3-5. Freq. resp (R/P) at 200Hz dB -6 -2 SP Mode
(-20dB ref. 1kHz) at 8kHz dB -8 -2 SP Mode
SP Mode,
W/O Burst
4. Tuner
4-1. Video output Vp-p 0.8 1.0 1.2 E-E Mode
4-2. Video S/N dB 39 44 E-E Mode
4-3. Audio output dB -10 -6 -2 E-E Mode
4-4. Audio S/N dB 40 46 E-E Mode
5. Hi-Fi Audio
5-1. Output dBV -12 -9 -4 SP Mode
5-2. Dynamic Range dB 70 85 SP Mode
5-3. Freq. resp (6dB B.W) Hz 20 ~ 20K SP Mode
Note: 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 repres ent the absolute worst con dition that
still might be considered acceptable; In no case should a unit fail to meet limit specs.
1-1-1 E8B00SP
< DVD Section >
ITEM CONDITIONS UNIT NOMINAL LIMIT
1. Video Output 75 Ω load Vpp 1.0 ± 0.1
2. Optical Digital Out dBm -18
3. Audio (PCM)
3-1. Output Level 1 kHz 0 dB, 47k Ω load Vrms 2.0
3-2. S/N 47k Ω load dB 90
3-3. Freq. Response
DVD fs = 48 kHz ± 0.5dB, 47k Ω load Hz 20~22 k
CD fs = 44.1 kHz ± 0.5dB, 47k Ω load Hz 20~20 k
3-4. THD+N
DVD 1 kHz 0dB, 47k Ω load % 0.01
CD 1 kHz 0dB, 47k Ω load % 0.01
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : 220 - 240 V ~ 50 Hz
3. Ambient temperature : 5
°C ~ 40 °C
1-1-2 E8B00SP
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 pic kup or allo w it to strike a gainst 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 30 cm 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.
Drive Mechanism
Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION- CLASS
-
TION WHEN OPEN. DO NOT VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS
1M
LASER RADIA
-
Location: Top of DVD mechanism.
1-2-1 E6P_LASER
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristic s which are often not evident from visual inspection, nor can the protection
they give necessarily be obtained by replacing them
with components rated for higher voltage, wattage,
etc. Parts that have special s afety characteristics are
identifi ed b y a ! on schematics and in parts lists. Use
of a substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might create shock, fire, and/or other
hazards. The Product’s Safety is under review continuously and new instructions are issued whenever
appropriate. Prior to shipment from the factory, our
products are carefully inspected to confirm with the
recognized product safety and electr ical codes of the
countries in which they are to be sold. However, in
order to maintai n suc h c omp li anc e, it is e qual ly imp or tant to implement the following precautions when a set
is being serviced.
Precautions during Servicing
A. Parts identified by the ! symbol are critical for
safety. Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spur ious radi ation. Thes e must also be
replaced only with specified replacements.
Examples: RF conver ters, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1)Wires covered with PVC tubing
2)Double insulated wires
3)High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1)Insulation tape
2)PVC tubing
3)Spacers
4)Insulators for transistors
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before soldering.
F. Observe that the wires do no t co ntac t he at prod uc -
ing parts (heatsink s, oxide metal film resist ors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has b een replac ed, check that
5 - 6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. Crimp type wire connector
The power transformer uses crimp type connectors
which connect the power cord and the primary side
of the transformer. When replacing the transformer,
follow these steps carefully and precisely to prevent shock hazards.
Replacement procedure
1)Remove the old connector by cutting the wires at a
point close to the connector.
Important: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insu lation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the comp lete closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconne ct the AC plug from the
AC outlet.
1-3-1 DVD_SFNP
Safety Check after Servicing
Examine the area surrounding the repaired location
for damage or deterioration. Observe that screws,
parts, and wires have been returned to their original
positions. Afterwards, do the following tests and confirm the specified values to verify compliance with
safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance dista nce (d) and (d’) between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
AC Line Voltage Clearance Distance (d), (d’)
Chassis or Secondary Conductor
Primary Circuit
d' d
220 to 240 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
≥ 3 mm(d)
≥ 6 mm(d’)
2. Leakage Curre nt Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs)
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Power ON) :
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across t he ter minals of l oad
Z. See Fig. 2 and the following table.
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i)
2kΩ RES.
Connected in
220 to 240 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
parallel
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
i≤0.7mA AC Peak
i≤2mA DC
1-3-2 DVD_SFNP
One side of power cord plug
prongs (B) to:
RF or
Antenna terminals
A/V Input, Output
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regu lator ICs is indicated as shown.
Top View
Input
Out
2. F or other ICs, pin 1 and every fifth pin are indicated
as shown.
In
Pin 1
3. The 1st pin of every male connec to r is ind ic ate d as
shown.
Bottom View
5
10
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
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
machine, then apply hot air to the Flat Pack-IC
(about 5 to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
Pin 1
Instructions for Connectors
1. When you connect or disconnect the FF C (Flexible
Foil Connector) cable, be sure to first disconnect
the AC cord.
2. FFC (Flexible Foil Connector) cable should be
inserted parallel into the connector, not at an angle.
FFC Cable
Connector
CBA
(2)Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3)B ottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to c ent er of the fla t pack-IC and hea t
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Rel ease the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Caution:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. Do not supply hot air to the chi p parts aro und 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)
* Be careful to avoid a short circuit.
1-4-1 DVD_NOTE
3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or dama ge the foil of each
pin or the solder lands under the IC when removing
it.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
With Soldering Iron:
(1)Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use sol der 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
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
Soldering Iron
Fig. S-1-3
(2) Lift each lead of the flat pack-IC upward one by
one, using a sharp pi n or wire to which solder will
not adhere (iron wire). W hen heating th e pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
Sharp
Pin
Fine Tip
Soldering Iron
Fig. S-1-4
(3)B ottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to c ent er of the fla t pack-IC and hea t
up. Then remove (glue will be melted). (Fig. S-1-6)
(4)Rel ease 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 sol der 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 l ift the IC leads from the CBA contact pads as shown in Fig. S-1-5.
1-4-2 DVD_NOTE
(4)Bo ttom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to cente r o f the fl at p ack-IC and h eat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5)Rel ease the fla t pack-IC from the C BA us ing twee -
zers. (Fig. S-1-6)
Note:
When using a solder ing iron, care must be taken
to ensure that the fl at pack-IC i s not bein g held by
glue. When the flat pack-IC is removed from the
CBA, handle it gentl y b ec ause i t m ay be dama ged
if force is applied.
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 repla cement flat p ack-IC more
easily.
(2) The “I” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mar k matches the 1
on the PCB when p ositioning for install ation. Then
presolder the four corn ers 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.
To Solid
Mounting Point
CBA
Hot Air Blower
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Example :
or
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
Flat Pack-IC
CBA
Fig. S-1-8
Tweezers
Flat Pack-IC
Fig. S-1-6
1-4-3 DVD_NOTE
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potenti al difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a groundi ng ban d (1M Ω) that is properly grounded to remove any static electr icity that may
be charged on the body.
2. Ground for Workbench
(1)Be sure to place a conductive sheet or copper plate
with proper grounding ( 1MΩ) on the wor kbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escap e through the body grounding band, be care ful to avoid contacting semi-con ductors with your clothing.
< Incorrect >
< Correct >
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-4-4 DVD_NOTE
PREPARATION FOR SERVICING
How to Enter the Service Mode
About Optical Sensors
Caution:
An optical sensor system is used for the Tape Start
and End Sensors on th is 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 Asse mbly 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 ar e c on nected 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 al l t he way to the start or the end of the
tape to avoid tape damage.
Q503
TP501 S-INH
Q504
Fig. 1
1-5-1 E8BA0PFS
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembl y Flowchart
This flowchar t indi cates the di sass embly ste ps to ga in
access to item(s) to be ser v iced. Whe n reassembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.
[1] T op Case
[2] Front Assembly
[3] T op Bracket
[4] DVD Mechanism Assembly
[5] Partition Plate
[6] Power Supply CBA
[7] Loader Holder
[9] VCR Chassis Unit
[10] Deck Assembly
[11] DVD Open/Close CBA
[12] Power SW CBA [DBVR-7730D only]
[13] Main CBA
[14] Jack-A CBA
[8] DVD Main CBA Unit
2. Disassembl y Method
REMOVAL
ID/
LOC.
No.
[1] Top Case D1 8(S-1) -
[2]
PART
Front
Assembly
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
D2 *3(L-1), *3(L-2)
Note
1
1-1
1-2
REMOVAL
ID/
LOC.
No.
[9]
[10]
[11]
[12]
[13] Main CBA D6 ---------- [14] Jack-A CBA D6 Desolder, 6(S-13) -
↓
(1)
Note:
(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,
(5):Refer to “Reference Notes.”
PART
VCR
Chassis Unit
Deck
Assembly
DVD Open/
Close CBA
Power SW
CBA
[DBVR-7730D
only]
↓
(2)
unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
5(S-8), 2(S-9),
(S-10A),
D5
(S-10B)
only]
Desolder,
D6
2(S-11), (S-12)
D6 Desolder -
D6 Desolder -
↓
(3)
[DBVR-7730D
, (L-3)
↓
(4)
Note
-
4,5
↓
(5)
[3] Top Bracket D2 3(S-2) -
DVD
[4]
Mechanism
Assembly
Partition
[5]
Plate
Power
[6]
Supply CBA
Loader
[7]
Holder
DVD Main
[8]
CBA Unit
4(S-3), *CN401,
D3
*CN601
D3 (S-4) -
D3 2(S-5), CN501 -
D3 2(S-6) -
2(S-7), *CN201,
D4
*CN301
2-1
2-2
-
2
3
1-6-1 E8B05DC
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 a
Screw (S-7) and lift the DVD Main CBA Unit. (Fig.
D4)
2-2. Short the three short land s of F PC cable wi th so l-
der before removing the FFC cable (CN201) from
it. If you disconnect th e FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. D4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected co mpletely. 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 CB A as shown in
Fig. D6. Then, install the Deck Assembly while
aligning the hole of Cam Gear with the pin of LDSW, the shaft of Cam Gear wi th t he ho le of LD -SW
as shown in Fig. D6.
(S-1)
(L-1)
(S-1)
[1] T op Case
(S-1)
(S-1)
Fig. D1
(S-2)
[3] T op Bracket
(S-2)
(L-2)
(L-1)
[2] Front
Assembly
Fig. D2
1-6-2 E8B05DC
[4] DVD
Mechanism
Assembly
[5] Partition Plate
(S-3)
CN401
(S-4)
CN601
(S-3)
(S-3)
(S-8)
(S-9)
(S-8)
(S-9)
(S-6)
[7] Loader
Holder
[8] DVD Main
CBA Unit
CN501
(S-7)
(S-5)
[6] Power
Supply CBA
Fig. D3
(S-7)
(S-10B)
(S-8)
[DBVR-7730D
only]
(S-10A)
[9] VCR Chassis Unit
(L-3)
Fig. D5
CN301
A
DVD Mechanism
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
CN201
Fig. D4
1-6-3 E8B05DC
[10] Deck
Assembly
FE Head
Cylinder
Assembly
ACE Head
Assembly
Pin
Lead with blue stripe
Desolder
[12] Power
SW CBA
(DBVR-7730D only)
[13] Main CBA
[11] DVD
Open/Close CBA
(S-11)
Lead with blue stripe
[14] Jack-A CBA
(S-11)
Desolder
from bottom
(S-12)
Desolder
Lead with
blue stripe
(S-13)
(S-13)
From
ACE Head
Assembly
[13] Main CBA
[10] Deck Assembly
Shaft
Hole
LD-SW
Lead with
blue stripe
Lead with
blue stripe
From
Cylinder
Assembly
Desolder
From
FE Head
SW507
LD-SW
Cam Gear
Hole
Pin
[13] Main CBA
Lead with
red stripe
Desolder
Printing side
From
Capstan
Motor
Assembly
Desolder
BOTT OM VIEW
Lead connections of Deck Assembly and Main CBA
1-6-4 E8B05DC
Fig. D6
HOW TO EJECT MANUALLY
1. Remove the Top Case, Front Assembly and T op Brac ket.
2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors.
3. While lifting up the DVD Mechanism, rotate the roulette in the direction of the arrow as
shown below.
4. Pull the tray slowly manually.
View for A
Rotate this roulette in
the direction of the arrow
DVD Mechanism
A
1-6-5 E8B05DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: "CBA" is an abbreviation for
"Circuit Board Assembly."
NOTE:
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.
1. Test Equipment Required
Alignment Tape (FL6A)
2. Head Switching Position
Adjustment
Purpose:
To deter mine the Head Switching position duri ng
playback.
Symptom of Misadjustment:
May cause Head Switching n oise or vertical jitter
in the picture.
Procedures:
1. Eject a tape and turn the power off.
2. To enter the service mode, press [CHANNEL K]
and [F.FWD] buttons on the unit simultaneously for
at least 2 seconds.
- The unit turn the power on in the service mode.
- Fig. E1 appears on the display.
"*" or "-" differs depending on the models.
3. To check/reset the initial function
setting
Preparation:
1. Enter the service mode.
2. Check the “0: FUNC SET” value (*1) in Fig. E1.
When the “0: FUNC SET” value is “038D” (DPVR7630D) or “038F” (DCVR-7830D) or “038 C” ( DBVR7730D):
1. To cancel the service mode, press [MENU] button
on the remote control.
2. If necessary, eject a tape.
3. To turn the power off, press [STANDBY-ON] button.
When the “0: FUNC SET” value is not “038D”
(DPVR-7630D) or “038F ” (DCVR-7830D) or “03 8C”
(DBVR-7730D):
1. To enter the initial function setting mode, press [0]
button on the remote control.
- Fig. E2 appears on the display.
"*" or "-" differs depending on the models.
1 : SW P AUTO
3 : SW P MANU
0 : FUNC SET 0***
0---
1 : SW P AUTO
3 : SW P MANU
0 : FUNC SET
--
**
0***
Fig. E1
*1
3. Insert the Alignment Tape (FL6A).
Auto adjustment starts.
4. After short time, “OK” appears on the display and
auto adjustment completes.
Press [STOP] to cancel the auto adjustment mode.
5. Eject the Alignment Tape (FL6A).
Fig. E2
2. Set the “0: FUNC SET” value at "038D" (DPVR7630D) or "038F" (DCVR-7830D) or "038C"
(DBVR-7730D) by using [K/L /{/B (up/down/left/
right)] buttons on the remote control.
3. T o r eturn to the service mode, press [STOP] button
on the unit.
4. To cancel the service mode, press [MENU] button
on the remote control.
5. If necessary, eject a tape.
6. To turn the power off, press [STANDBY-ON] button.
7. To reset the unit, press [CHANNEL K] and [REW]
buttons on the unit simultaneously for at least 2
seconds.
1-7-1 E8B05EA
HOW TO INITIALIZE THE DVD PLAYER & VCR
To put the program back at the factory-default,
initialize the DVD player & VCR as the following
procedure.
< DVD Section >
1. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. a appears on the screen.
"
" differs depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. a
"
" differs depending on the models.
*******
2. Press [CLEAR] button on the remote control unit.
Fig. b appears on the screen.
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. b
When “OK” appears on the screen, the factory
default will be set.
3. To exit this mode, press [STANDBY-ON] button.
1-8-1 E8BA0INT
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray .
2. To put the DVD player into v ersion up mode, press
[DVD], [9], [8], [7], [6], and [SEARCH MODE]
buttons on the remote control unit in that order.
The tray will open automatically.
Fig. a appears on the screen and Fig. b appears
on the VFD.
"
" differs depending on the models.
*******
F/W Version Up Mode Model No : *******
Please insert a DISC
for F/W Version Up.
VERSION : *.**
EXIT: POWER
Fig. a Version Up Mode Screen
Fig. b VFD in Version Up Mode
The DVD player can also enter the version up
mode with the tray open. In this case, Fig. a will be
shown on the screen while the tray is open.
3. Load the disc for version up.
4. The DVD player enters the F/W version up mode
automatically. Fig. c appears on the screen and
Fig. d appears on the VFD. If you enter the F/W for
different models, “Disc Error” will appear on the
screen, then the tray will open automatically.
"
" differs depending on the models.
*******
(*1)
F/W Version Up Mode Model No : *******
VERSION : ************.abd
Reading...
VERSION : *.**
5. After programming is finished, the tray opens
automatically. Fig. e appears on the screen and
the checksum in (*2) of Fig. e appears on the VFD
(Fig. f).
"
" differs depending on the models.
*******
(*2)
F/W Version Up Mode
VERSION : ************.abd
Completed
SUM : 7ABC
Model No : *******
VERSION : *.**
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programming Mode (Example)
At this time, no button is available.
6. Remove the disc on the tray.
7. Unplug the AC cord from the AC outlet. Then plug
it again.
8. Turn the power on by pressing the [ST ANDBY-ON]
button and the tray will close.
9. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. g appears on the screen.
"
" differs depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
Fig. c Programming Mode Screen
Fig. d VFD in Programming Mode (Example)
The appearance shown in (*1) of Fig. c is
described as follows:
No. Appearance State
1 Reading... Sending files into the memory
2 Erasing... Erasing previous version data
3 Programming... Writing new version data
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
1-9-1 E8B05FW
10. Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
"
" differs depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. h
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
11. To exit this mode, press [STANDBY-ON] button.
1-9-2 E8B05FW
FUNCTION INDICATOR SYMBOLS
Note:
If a mechanical ma lfunction occurs, the power is tur ned off. When the power comes on agai n after that by
pressing [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds.
MODE INDICATOR ACTIVE
When reel or capstan mechanism is not
functioning correctly
When tape loading mechanism is not functioning correctly
When cassette loading mechanism is not
functioning correctly
When the drum is not working properly
P-ON Power safety detection
“A R” is displayed on a TV screen. (Refer to Fig. 1.)
“A T” is displayed on a TV screen. (Refer to Fig. 2.)
“A C” is displayed on a TV screen. (Refer to Fig. 3.)
“A D” is displayed on a TV screen. (Refer to Fig. 4.)
“A P” is displayed on a TV screen. (Refer to Fig. 5.)
TV screen
When reel or capstan mechanism is not functioning
correctly
A
R
Fig. 1
When the drum is not working properly
A
D
Fig. 4
When tape loading mechanism i s not function ing correctly
A
T
Fig. 2
When cassette loadi ng mechanism is not functi oning
correctly
A
C
Fig. 3
P-ON Power safety detection
A
P
Fig. 5
1-10-1 E8BA0FIS
BLOCK DIAGRAMS <VCR SECTION>
Servo / System Control Block Diagram
AL+5V
D651
SW651
POWER SW CBA
SENS-INH
TP501
POWER
POWER
CN508
POWER-LED
11KEY-1
33
CN509
A,B
KEY SWITCH
Q507
KEY SWITCH
POWER
D505
C
D502
Q508
DVD
Q509
VCR
D503
SDA
SCL
IC502 (MEMORY)
5
6
TO AUDIO
BLOCK DIAGRAM
IIC-BUS SCL
IIC-BUS SDA
AUDIO-MUTE-H
TO Hi-Fi AUDIO
A-MODE
Hi-Fi-H-SW
IIC-BUS SCL
IIC-BUS SDA
BLOCK DIAGRAM
LINE-MUTE
IIC-BUS SDA
OUTPUT-SELECT
RF-SW
C-ROTA
D-REC-H
IIC-BUS SCL
H-A-SW
D-V-SYNC
H-A-COMP
TO VIDEO
BLOCK DIAGRAM
V-ENV
C-SYNC
INPUT-SELECT
OUTPUT-SELECT
TRICK-H
SECAM-H
TO DVD SYSTEM
CONTROL /SERVO
BLOCK DIAGRAM
<DVD SECTION>
TO DVD VIDEO/
DVD-POWER
OUTPUT-SELECT
OUTPUT-SELECT
AUDIO BLOCK
DIAGRAM
<DVD SECTION>
8
7
23
KEY- 1
KEY- 2
POWER-LED
DRV-DATA
DRV-STB
DRV-CLK
REMOCON-IN
IC501
(SERVO/SYSTEM CONTROL)
70
14
DISPLAY-CLK
REMOTE-VIDEO
TO DVD SYSTEM
CONTROL /SERVO
AL+5V
D555
68
69
DISPLAY-DATA
DISPLAY-STB
BLOCK DIAGRAM
<DVD SECTION>
S-LED
SW507
AL+5V
LD-SW
CTL(-)
LD-SW
9
AL+5V
29
DVD-LED
ST-S
CTL(+)
109495
END-S
T-REEL
4
80
30
VCR-LED
S-REEL
79
PS502
Q506
Q515
S-REEL
T-REEL
RESET
34
RESET
TIMER+5V
83
AUDIO-MUTE-H
86
19
A-MODE
Hi-Fi-H-SW
AL+5V
72
28
LINE-MUTE
IIC-BUS SDA
REC-SAF-SW
31
SW506
REC-SAFETY
15
18
33
71
RF-SW
C-ROTA
D-REC-H
IIC-BUS SCL
CTL
97
CTL
TP503
CN502
6
58
41
82
17
16
13
V-ENV
H-A-SW
D-V-SYNC
H-A-COMP
C-FG
8778768177
AL+20.5V/+12V
P-ON+5V
AL+20.5V/+12V
P-ON+5V3C-FG4C-F/R5C-CONT6GND7LM-FWD/REV
1
2
INPUT-SELECT
OUTPUT-SELECT
C-CONT
C-F/R
LM-
FWD/REV
MOTOR
DRIVE
C-SYNC
D-CONT
D-CONT9D-PFG10GND11AL+12V(2)12P-ON+15V
8
CIRCUIT
61
65
TRICK-H
SECAM-H
B
D-PFG
90
21
DVD-POWER
AL+12V(2)
P-ON+15V
P-ON-H
C-POW-SW
P-DOWN-H
666732
P-ON-H
C-POW-SW
P-DOWN-H
TO POWER
SUPPLY BLOCK
DIAGRAM
MAIN CBA
A
B
Model Mark
DPVR-7630D
Comparison Chart of
Models & Marks
DCVR-7830D
C
ACE HEAD ASSEMBLY
DBVR-7730D
(DECK ASSEMBLY)
CN504
1 CTL(-)
CONTROL
2 CTL(+)
HEAD
TP502
END-S
Q504
ST-S
SENSOR CBA
Q503
1-11-1
END-S
SENSOR CBA
CAPSTAN MOTOR
CAPSTAN
M
PG
SENSOR
DRUM
CYLINDER ASSEMBLY
MOTOR
MOTOR
M
M
LOADING
E8B05BLS
MOTOR
Video Block Diagram
MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL
VIDEO (L)-1
HEAD
VIDEO (R)-1
HEAD
VIDEO (L)-2
HEAD
CYLINDER ASSEMBLY
VIDEO (R)-2
HEAD
B
A
B
Model Mark
DPVR-7630D
Comparison Chart of
Models & Marks
DCVR-7830D
MAIN CBA
REC-VIDEO SIGNAL
TO SERVO/SYSTEM
IIC-BUS SDA
IC501 (OSD)
C
DBVR-7730D
CONTROL BLOCK
DIAGRAM
IIC-BUS SCL
B
50
55
COLOR
-IN
OSD
IC301
CHARACTER
MIX
52
TU701 (TUNER UNIT)
(DECK ASSEMBLY)
123
CN251
VIDEO(R)-1
7978
Y. DELAY
46 43
6968
SERIAL
DECORDER
65
VIDEO SIGNAL PROCESS
/HEAD AMP
4
(SW)
SW CTL
DVD
VCR
IC1404
24
VIDEO OUT
JK752
VIDEO
-IN
FRONT
3
5
456
VIDEO(L)-1
VIDEO(L)-2
VIDEO-COM
969594
SP
HEAD
AMP
SP
EP
P
R
LUMINANCE
SIGNAL
PROCESS
AGC
BYPASS
IN2
IN1
TUNER
485052
9
VIDEO(R)-2
VIDEO-COM
93
IN2
FRT
FRT
56
54
INPUT-SELECT
TO
SERVO/SYSTEM
D-REC-H
WF1
RF-SW
TP504
908988
87
80
EP
HEAD
AMP
D-REC-H
REC FMAGC
+
Y
C
CCD 1H DELAY
1/2
CHARA.
INS.
MUTE
PB/EE
IN1
TUNER
PB/EE
DVD-VIDEO
TO DVD
VIDEO/AUDIO
BLOCK DIAGRAM
DIAGRAM
<DVD SECTION>
CONTROL BLOCK
RF-SW
C-ROTA
D-V-SYNC
62
70
D-V-SYNC
RF-SW/C-ROTA
CHROMINANCE
SIGNAL
PROCESS
FBC
MUTE
JK101
19
VIDEO-OUT1
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
V-ENV
H-A-SW
C-SYNC
TRICK-H
67
84
V-ENV
C-SYNC
Y/C
PR
SECAM-H
VXO
MIX
AGC
61
63
8
CN2017
VIDEO-OUT2
8
CN2018
BUFFER
JK1402
19
VIDEO
-OUT2
H-A-COMP
83
71
H-A-SW
H-A-COMP
RPRP
20
VIDEO-IN1
PAL/SECAM
IC370 (PAL/SECAM DECTECTOR)
1
171418216
29
28
44
PB-H OUT
21
WF2
C-PB
TP301
25
2928
X301
4.43MHz
58 59
DVD
IC751
(OUTPUT SELECT)
BUFFER
Q104
VIDEO-IN2
10 10
Q103
JACK-A CBA
20
VIDEO
-IN2
DETECTOR
3
VCR
4
5
SW CTL
V-OUT
TP751
11109
WF3
TO SERVO/SYSTEM
CONTROL BLOCK DIAGRAM
OUTPUT-SELECT
1-11-2
E8B05BLV
Loading...