Magnavox DVC840F, MWD2205, DVC865F Schematic
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.:
N2440FL, N2460FL
DVD PLAYER &
VIDEO CASSETTE RECORDER
DVC840F
MWD2205 DVC865F
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Funai Equipment. The service procedures recommended by Funai and
described in this service manual are effective methods of performing
service operations. Some of these service special tools should be used
when and as recommended.
It is important to note that this service manual contains various CAUTIONS
and NOTICES which should be carefully read in order to minimize the risk
of personal injury to service personnel. The possibility exists that improper
service methods may damage the equipment. It also is important to
understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE.
Funai could not possibly know, evaluate and advice the service trade of all
conceivable ways in which service might be done or of the possible
hazardous consequences of each way. Consequently, Funai has not
undertaken any such broad evaluation. Accordingly, a servicer who uses a
service procedure or tool which is not recommended by Funai must first
use all precautions thoroughly so that neither his safety nor the safe
operation of the equipment will be jeopardized by the service method
selected.
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
DVC840F/MWD2205/
DVC865F
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Parts List
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
System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15-1
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
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 35 41 SP Mode
1-5. Video Color S/N PM (R/P) dB 33 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 -6 -3 SP Mode
3-2. Output (R/P) dBV -9 -6 -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 200 Hz dB -11 -4 SP Mode
(-20 dB ref. 1 kHz) at 8 kHz dB -14 -4 SP Mode
4. Tuner
4-1. Video output Vp-p 0.8 1.0 1.2 E-E Mode
SP Mode,
W/O Burst
4-2. Video S/N dB 39 42 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 [ DVC865F ]
5-1. Output dBV -12 -8 -4 SP Mode
5-2. Dynamic Range dB 70 80 SP Mode
5-3. Freq. resp (6 dB B.W) Hz 20 ~ 20 k 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 represent the absolute worst condition
that still might be considered acceptable; In no case should a unit fail to meet limit specs.
1-1-1 H9801SP
< DVD Section >
Item Conditions Unit Nominal Limit
1. Video Output 75 Ω load Vpp 1.0 ± 0.1
2. Coaxial Digital Out 75 Ω load mVpp 500 ± 50
3. Audio (PCM)
3-1. Output Level 1 kHz, 0 dB Vrms 2.0
3-2. S/N dB 100
3-3. Freq. Response
DVD fs = 48 kHz ± 0.5 dB Hz 20 ~ 22 k
CD fs = 44.1 kHz ± 0.5 dB Hz 20 ~ 20 k
3-4. THD+N
DVD 1 kHz, 0 dB % 0.01
CD 1 kHz, 0 dB % 0.01
Notes:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply: AC 120 V, 60 Hz
3. Load imp.: 100 kΩ
4. Ambient Temperature: +25 °C
1-1-2 H9801SP
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 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 Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
Location: Top of DVD mechanism.
1-2-1 E6NLSP
IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics 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 safety characteristics are
identified by 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 electrical
codes of the countries in which they are to be sold.
However, in order to maintain such compliance, it is
equally important 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 spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, 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 not contact heat
producing parts (heat sinks, oxide metal film
resistors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replaced, 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 insulation 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 complete
closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.
1-3-1 DVDN_ISP
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 distance (d) and (d’) between
soldered terminals, and between terminals and
surrounding metallic parts. (See Fig. 1)
Table 1: Ratings for selected area
Chassis or Secondary Conductor
Primary Circuit Terminals
AC Line Voltage Clearance Distance (d), (d’)
120 V ≥ 3.2 mm (0.126 inches)
Note: This table is unofficial and for reference only. Be
sure to confirm the precise values.
2. Leakage Current 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 the terminals of load Z.
See Fig. 2 and the following table.
dd'
Fig. 1
Exposed Accessible Part
Z
AC Voltmeter
(High Impedance)
Earth Ground
B
Power Cord Plug Prongs
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
0.15 µF CAP. & 1.5 kΩ RES.
Connected in parallel
i ≤ 0.5 mA Peak Exposed accessible parts
1-3-2 DVDN_ISP
Fig. 2
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
Top View
Out
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
Pin 1
3. The 1st pin of every male connector is indicated as
shown.
Pin 1
Input
In
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
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
inserted parallel into the connector, not at an
angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
2. Remove the flat pack-IC with tweezers while
applying 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
tweezers. (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 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)
1-4-1 DVDN_SN
3. 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.
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)
CBA
Masking
Tape
Tweezers
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-2
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)
Sharp
Pin
Fine Tip
Soldering Iron
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
tweezers. (Fig. S-1-6)
Fig. S-1-4
1-4-2 DVDN_SN
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.
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
tweezers. (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.
Hot Air Blower
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
presolder 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
To Solid
Mounting Point
CBA
Tweezers
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Flat Pack-IC
or
Presolder
Flat Pack-IC
CBA
Fig. S-1-8
Fig. S-1-6
1-4-3 DVDN_SN
Instructions for Handling Semiconductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 MΩ) 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 (1 MΩ) 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.
<Incorrect>
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-4-4 DVDN_SN
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 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 TP502 (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.
Q503
Q504
TP502
S-INH
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.
1-5-1 H9801PFS
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] Top Case
[2] Front Assembly
[3] Top Bracket
[4] DVD Mecha Assembly [7] DVD Main CBA Unit
[5] Partition Plate
[6] Loader Holder
[8] VCR Chassis Unit
[9] Deck Assembly
[10] DVD Open/Close CBA
[11] Main CBA
2. Disassembly Method
ID/
Loc.
No.
[1] Top Case D1 4(S-1) ---
[2]
[3] Top Bracket D2 3(S-2) ---
[4]
[5]
[6]
[7]
[8]
[9]
Part
Front
Assembly
DVD Mecha
Assembly
Partition
Plate
Loader
Holder
DVD Main
CBA Unit
VCR
Chassis
Unit
Deck
Assembly
Fig.
No.
D2 *3(L-1), *3(L-2) 1
4(S-3), *CN401,
D3
*CN601
D3 2(S-4) ---
D3 2(S-5) ---
(S-6), *CN201,
D4
*CN301
D5 5(S-7), (S-8) -
Desolder,
D6
(S-9), (S-10), (S-11)
Removal
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
Note
---
2, 3
4, 5
ID/
Loc.
No.
[11] Main CBA D6 ---------- ---
↓
(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,
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)
(5) Refer to “Reference Notes.”
Part
↓
(2)
Fig.
No.
↓
(3)
Removal
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
↓
(4)
Note
↓
(5)
Reference Notes
1. CAUTION 1: Locking Tabs (L-1) and (L-2) are
fragile. Be careful not to break them.
1) Release three Locking Tabs (L-1).
2) Release three Locking Tabs (L-2), then remove
the Front Assembly.
2. 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.
1) Disconnect Connector (CN301). Remove a
Screw (S-6) and lift the DVD Main CBA Unit.
(Fig. D4)
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), the laser diode of pickup will be
destroyed. (Fig. D4)
3. 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.
[10]
DVD Open/
Close CBA
D6 Desolder ---
1-6-1 H9801DC
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 LDSW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D6.
[4] DVD Mecha
Assembly
(S-3)
CN401
CN601
(S-3)
[1] Top Case
(S-2)
[3] Top Bracket
(S-1)
(S-2)
Fig. D1
(S-5)
[6] Loader
Holder
[7] DVD Main
CBA Unit
(S-3)
(S-4)
[5] Partition Plate
Fig. D3
(S-6)
(S-6)
(L-1)
(L-2)
(L-1)
[2] Front
Assembly
Fig. D2
CN301
A
DVD Mecha
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
CN201
Fig. D4
1-6-2 H9801DC
(S-7)
(S-7)
(S-7)
(S-8)
[8] VCR Chassis Unit
Fig. D5
1-6-3 H9801DC
FE Head
Cylinder
Assembly
ACE Head
Assembly
Pin
(S-9)
[10] DVD
Open/Close CBA
[9] Deck Assembly
(S-11)
[11] Main CBA
(S-10)
Desolder
Lead with
blue stripe
From
ACE Head
Assembly
Lead with
blue stripe
[11] Main CBA
[9] Deck Assembly
Shaft
Hole
LD-SW
From
Cylinder
Lead with
blue stripe
Assembly
From
FE Head
SW512
LD-SW
Cam Gear
Hole
Pin
[11] Main CBA
Desolder
Lead with
red stripe
Desolder
Printing side
From
Capstan
Motor
Assembly
Desolder
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
1-6-4 H9801DC
Fig. D6
3. HOW TO EJECT MANUALLY
1. Remove the Top Case, Front Assembly and Top Bracket.
2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors.
3. While lifting up the DVD Mecha, rotate the roulette in the direction of the arrow as shown below.
4. Pull the tray slowly with a hand.
View for A
Rotate this roulette in
the direction of the arrow
A
DVD Mecha
1-6-5 H9801DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: “CBA” is 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
procedures, make sure that the tracking control is
set in the center position: Press either [CHANNEL
L] or [CHANNEL K] 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: 0.001~50 V/Div.,
F-Range: DC~AC-20 MHz
2. Alignment Tape (FL8A)
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)
TP302(RF-SW)
GND
Tape
FL8A Oscilloscope
Connections of Measurement Equipment
Main CBA
VR501
(Switching Point)
Measurement
Equipment
TP751
GND
TP302
PLAY
(SP)
6.5H ± 1H
(412.7µs±63.5µs)
Oscilloscope
-----
Spec.
CH1 CH2
Trig. (+)
Figure 1
EXT. Syncronize Trigger Point
CH1
CH2
Note: TP751(V-OUT), TP302(RF-SW),
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 (412.7 µs ± 63.5 µs)
delayed position from the rising edge of the CH2 head
switching pulse waveform.
1.0H
6.5H±1H (412.7µs±63.5µs)
Switching Pulse
VR501(Switching Point) --- Main CBA
0.5H
V-Sync
1-7-1 H9801EA
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.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. a
"
" differ depending on the models.
*******
2. Press [CLEAR/C.RESET] 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. Then the firmware renewal
mode is complete.
3. To exit this mode, press [POWER] or [STANDBYON] button.
1-8-1 H9801INT
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray.
2. To put the DVD player into version 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.
"
" differ 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
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. If you
enter the F/W for different models, “Disc Error” will
appear on the screen, then the tray will open
automatically.
"
" differ depending on the models.
*******
the checksum in (*2) of Fig. e.
"
" differ depending on the models.
*******
(*2)
F/W Version Up Mode
VERSION : ************.ab6
Completed
SUM : 7ABC
Model No : *******
VERSION : *.**
Fig. e Completed Program Mode Screen
At this time, no buttons are 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 [POWER] or
[STANDBY-ON] button and the tray will close.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on
the remote control unit in that order.
Fig. g appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
(*1)
F/W Version Up Mode Model No : *******
VERSION : ************.ab6
Reading...
VERSION : *.**
Fig. c Programming Mode Screen
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
5. After programming is finished, the tray opens
automatically. Fig. e appears on the screen and
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
10. Press [CLEAR/C.RESET] button on the remote
control unit.
Fig. h appears on the screen.
"
" differ 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 [POWER] or [STANDBYON] button.
1-9-1 H9801FW
FUNCTION INDICATOR SYMBOLS
Note: If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [POWER] or [STANDBY-ON] button, an error message is displayed on the TV screen for 5
seconds.
Cause 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 “EJECT A D” is displayed on a TV screen. (Refer to Fig. 4.)
“EJECT A R” is displayed on a TV screen. (Refer to Fig. 1.)
“EJECT A T” is displayed on a TV screen. (Refer to Fig. 2.)
“EJECT A C” is displayed on a TV screen. (Refer to Fig. 3.)
TV screen
When reel or capstan mechanism is not functioning
correctly
EJECT A R
Fig. 1
When tape loading mechanism is not functioning
correctly
When cassette loading mechanism is not functioning
correctly
EJECT A C
When the drum is not working properly
Fig. 3
EJECT A T
Fig. 2
EJECT A D
Fig. 4
1-10-1 H9801FIS
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