Emerson EWH100F User manual

SERVICE MANUAL
Main Section
ISpecifications
IPreparation for Servicing
IAdjustment Procedures
ISchematic Diagrams
ICBA’s
IExploded Views
IParts List
The Part No. of the Deck
Mechanism used in this model is
N2461FL, but when servicing the
deck mechanism, refer to
N2460FL in the MK14 Deck
Mechanism Section.
DVD/Video Cassette Recorder
with HDD
EWH100F

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/Video Cassette Recorder
with HDD
EWH100F
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
Handling Precautions for HDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Preparation for Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6-1
Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
How to Self-Check and Initialize the DVD/VCR with HDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10-1
Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12-1
Schematic Diagrams / CBA’s and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16-1
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21-1
Main Section
ISpecifications
IPreparation for Servicing
IAdjustment Procedures
ISchematic Diagrams
ICBA’s
IExploded Views
IParts List

1-1-1 E4340SP
SPECIFICATIONS
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply: AC120 V 60 Hz
3 Ambient temperature: 5 °C ~ 40 °C
ITEM
General
HDD Internal 3.5 inch HDD 80 GB
Power consumption 44W (standby: 4.6W)
Recording
Recording format Video Recording Format (DVD-RW only)
Video Format (DVD-RW, DVD-R)
Recordable discs DVD-ReWritable
DVD-Recordable
Video recording format
Sampling frequency
Compression format 13.5MHz MPEG
Audio recording format
Sampling frequency
Compression format 48kHz Dolby Digital
Tuner
Receivable channels
VHF
UHF
CATV
2-13ch
14-69ch
C1-C125ch
Input/Output
Video input
Input level
Jacks
Input 1 (rear), 2 (front)
1 Vp-p (75Ω)
RCA jack
S-Video input
Y (Iuminance) - Input level
C (color) - Input level
Jacks
Input 1 (rear), 2 (front)
1 Vp-p (75Ω)
286 mVp-p (75Ω)
4 pin mini DIN
Audio input
During audio input
Jacks
Input 1 (rear), 2 (front) L/R
2V rms (47kΩ)
RCA jacks
Component video output
Output level
Jacks Y: 1.0 Vp-p (75Ω), PB/CB, PR/CR: 0.7 Vp-p (75Ω)
RCA jacks
Video output
Output level
Jacks 1 Vp-p (75Ω) RCA jack
S-Video output
Y (Iuminance) - Output level
C (color) - Output level
Jack
1 Vp-p (75Ω)
286 mVp-p (75Ω)
4 pin mini DIN
Audio output
During audio output
Jacks
Output 1,2 L/R
2V rms (47kΩ)
RCA jacks
Digital audio output
Output level
Jack 500 mVp-p (75Ω) RCA jack
VHF/UHF antenna
input/output terminal VHF/UHF set 75Ω

1-2-1 R2NLSP
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
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.
Location: Inside Top of DVD mechanism.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Drive Mechanism Assembly
Laser Beam Radiation
Laser Pickup
Turntable

1-3-1 DVDN_ISP
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.

1-3-2 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
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.
Table 2: Leakage current ratings for selected areas
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Clearance Distance (d), (d’)
120 V ≥3.2 mm (0.126 inches)
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V 0.15 µF CAP. & 1.5 kΩRES.
Connected in parallel i ≤0.5 mA Peak Exposed accessible parts
Chassis or Secondary Conductor
Primary Circuit
Fig. 1
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
BEarth Ground
Power Cord Plug Prongs
Z
Fig. 2

1-4-1 DVDN_SN
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
3. The 1st pin of every male connector is indicated as
shown.
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.
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)
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)
Top View
Out In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Fig. S-1-1

1-4-2 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)
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)
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)
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4

1-4-3 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.
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.
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
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 DVDN_SN
Instructions for Handling Semi-
conductors
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>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA

1-5-1 DHDN_SN
HANDLING PRECAUTIONS FOR HDD
CAUTION:
1. SHOCK
a. Exposing HDD to shock may be the biggest
damaging factor. Please note that HDD is easily
damaged even if dropped from any height. Be sure
to place HDD on a shock-absorbent mat. Also, be
careful when transporting HDD.
b. Be careful not to subject HDD to any shock when
tightening screws for HDD replacement.
(Tighten screws manually, not with an electric
driver.)
2. MOISTURE
a. Moisture may also be a damaging factor. HDD is
semiclosed style. Sudden changes in ambient
temperature may cause moisture to form. Monitor
temperature and do not allow moisture to form on
the media surface. Also, when opening HDD
package, do so only after package is at ambient
temperature.
b. After replacing HDD, leave it to reach room
temperature (about 2 hours) for preventing dew
internal condensation, and then work necessary
task such as operation check.
3. STATIC ELECTRICITY
a. After removing HDD or taking replacement HDD
out of the protective bag (the replacement HDD is
packed in a protective bag), place HDD on a
conductive surface. A grounding band should be
worn when handling.
Both the conductive surface and grounding band
should be grounded.
b. Make sure that HDD is placed on main unit
completely and then let go of it, when assembling.
c. Do not put HDD on a packing bag. (for preventing
electrostatic damage)
4. OTHERS
a. Be careful so as not to do the followings.
Otherwise, HDD might be damaged.
-DO NOT disassemble HDD.
- When handling HDD, be sure to hold both sides
securely.
b. HDD should be stored, packed in the protective
bag, in suitable surroundings (i.e., no extreme
changes in temperature to avoid condensation).
c. When transporting HDD, be sure to use the
exclusive packing case (the replacement HDD
carton).
d. Do not stack HDDs.
e. Do not place vertically because HDD is unstable
and easy to fall.
Grounding Band

1-6-1 E4340PFS
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 [VCR PLAY] button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, connect TP4502 (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.
Q504
Q503
TP4502
S-INH
Fig. 1

1-7-1 E4340DC
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.
2. Disassembly Method
Note:
(1): Identification (location) No. of parts in the figures
(2): Name of the part
(3): Figure Number for reference
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
[1] Top Cover D1 7(S-1) ---
[2] Front
Assembly D2 (S-2), *5(L-1), *3(L-2) 1
1-1
1-2
[3] Front
Bracket D2 2(S-3), 3(S-3B), Front Support ---
[4] HDD
Assembly D3 3(S-4), *CN201, *CN2203 ---
[1] Top Cover
[2] Front
Assembly
[3] Front
Bracket
[21] Front
Bracket R
[22] Bracket R [4] HDD
Assembly
[7] HDD Unit
[8] HDD
Support
[6] HDD
Bracket
[15] Front
Jack CBA
[5] DVD
Mechanism &
DVD/HDD Main
CBA Assembly
[13] Power
Supply CBA
[14] Open/
Close CBA [10] Fan
Holder
[11] Fan Motor
[12] Rear
Panel
[17] Deck
Assembly
[20] Deck
Pedestal
[16] VCR
Chassis Unit [19] Power
SW CBA
[18] AV CBA
[9] ATA CBA
[5]
DVD
Mechanism
& DVD/
HDD Main
CBA
Assembly
D3
2(S-5), 2(S-6),
*CN2201, *CN4001,
Wiresheet
2
[6] HDD
Bracket D4 4(S-7) ---
[7] HDD Unit D4 4(S-8), HDD Rubber 3
[8] HDD
Support D4 ---------- ---
[9] ATA CBA D4 *CN3001, *CN3002 ---
[10] Fan Holder D5 2(S-9) ---
[11] Fan Motor D5 *CN2204 ---
[12] Rear Panel D5 5(S-10), 2(S-11) ---
[13]
Power
Supply
CBA
D6 *CN2202, 2(S-12) ---
[14] Open/
Close CBA D6 (S-13), Desolder ---
[15] Front Jack
CBA D6 *CN2501, 2(S-14) ---
[16]
VCR
Chassis
Unit
D7 5(S-15), 4(S-16),
(S-17) ---
[17] Deck
Assembly D8 (S-18), (S-19) Desolder
4
5
[18] AV CBA D8 ---------- ---
[19] Power SW
CBA D8 Desolder ---
[20] Deck
Pedestal D9 8(S-20) ---
[21] Front
Bracket R D9 (S-21) ---
[22] Bracket R D9 2(S-22) ---
↓
(1) ↓ (2) ↓ (3) ↓ (4) ↓ (5)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note

1-7-2 E4340DC
(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. 6(S-1) = six Screws (S-1),
5(L-1) = five Locking Tabs (L-1)
(5): Refer to “Reference Notes.”
Reference Notes
1. Locking Tabs (L-1) and (L-2) are fragile. Be careful
not to break them.
1-1. Remove Screw (S-2).
1-2. Release five Locking Tabs (L-1).
1-3. Release three Locking Tabs (L-2) and
remove the Front Assembly.
2. Do not replace the DVD Mechanism or the DVD/
HDD Main CBA Assembly separately, when
replacing the DVD Mechanism & DVD/HDD Main
CBA Assembly. Order the new DVD Mechanism &
DVD/HDD Main CBA Assembly.
3-1. Whenever you have replaced the HDD unit,
initialize the HDD unit. To initialize the HDD
unit, perform the following.To put the DVD/
VCR with HDD recorder into the HDD mode,
press the [HDD] button on the remote control
unit.
3-2. To put the DVD/VCR with HDD recorder into
the self-check mode, after pressing
[VARIABLE SKIP] button, press the [3], [6],
and [9] buttons on the remote control in that
order within three seconds.
3-3. Press [ENTER] button. The DVD/VCR with
HDD recorder is initialized and the power is
turned off automatically after two seconds.
3. When reassembling, solder wire jumpers as
shown in Fig. D8.
4. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on the AV CBA as shown
in Fig. D8. 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. D8.
(S-1)
(S-1)
(S-1)
(S-1)
(S-1)
[1] Top Cover
Fig. D1
(S-3B)
(S-3B)
(L-1)
(L-2)
(L-1)
(S-3)
(S-3B)
(S-2)
(L-1) Fig. D2
Front
Support
[2] Front
Assembly
[3] Front Bracket

1-7-3 E4340DC
(S-4)
(S-4)
(S-5)
(S-6)
CN201 CN2203
CN4001
CN2201
(S-6)
Fig. D3
[4] HDD Assembly
Wire
Sheet
[5] DVD Mechanism &
DVD/HDD Main CBA
Assembly
(S-7)
(S-7)
(S-8)
CN3001
CN3002
(S-8)
Fig. D4
[6] HDD Bracket
[7] HDD Unit
[8] HDD
Support
[9] ATA CBA
HDD Rubber
HDD Rubber
(S-9)
(S-11) (S-10)
(S-10)
(S-11)
CN2204
Fig. D5
[10] Fan Holder
[11] Fan
Motor
[12] Rear Panel
(S-12)
(S-14)
(S-13)
CN2202
CN2501
Fig. D6
[13] Power
Supply CBA
[15] Front Jack CBA
[14] Open/Close CBA
Desolder
(S-15)
(S-15) (S-15)
(S-16)
(S-16)
(S-17)
(S-16)
Fig. D7
[16] VCR
Chassis
Unit

1-7-4 E4340DC
[18] AV CBA
[17] Deck
Assembly
[19] Power
SW CBA
FE Head
Cylinder
Assembly
ACE Head
Assembly
Desolder
Lead with
blue stripe
[18] AV CBA
SW4512
LD-SW
From
FE Head
BOTTOM VIEW
Lead connections of Deck Assembly and AV CBA
Desolder
From
Capstan
Motor
Assembly
Printing side
Desolder
Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly
Lead with
blue stripe
Lead with
gray stripe
(S-18)
(S-19)
Fig. D8
LD-SW Pin
Pin
Hole
Hole
Shaft
Cam Gear
[18] AV CBA
[17] Deck Assembly
Pin

1-7-5 E4340DC
3. How to Eject Manually
< Method 1 >
Note: When servicing, do not touch white resin part as shown below.
When rotating the gear, be careful not to damage the gear.
1. Remove the Top Cover.
2. Rotate the gear in the direction of the arrow manually as shown below.
(S-20)
(S-20)
(S-21)
(S-22)
Fig. D9
[20] Deck Pedestal
[22] Bracket R
[21] Front Bracket R
View for A
Rotate this gear in
the direction of the arrow
Do not touch!
A

1-7-6 E4340DC
< Method 2 >
Note: When servicing, do not touch white resin part
as shown below.
1. Remove the Top Cover, the Front Assembly and
the DVD Mechanism & DVD/HDD Main CBA
Assembly. Then, remove the DVD Mechanism
Unit.
2. Remove two screws, and remove the Insulating
Plate.
3. Release two Locking Tabs, and lift up one side of
the Clamper Assembly.
4. Release the other side of two Locking Tabs, and
remove the Clamper Assembly.
5. Remove the disc.
6. Assemble the DVD Mechanism and DVD/HDD
Main CBA.
Note: The combination of the DVD Mechanism
and the DVD/HDD Main CBA cannot be changed.
When assembling the DVD/HDD Main CBA on the
DVD Mechanism, use the DVD/HDD Main CBA
that disassembled on the item 1. The other DVD/
HDD Main CBA cannot be used.
Screw
Insulating Plate
Do not touch!
Locking Tabs
Clamper Assembly
Locking Tabs
Clamper Assembly
Disc

1-8-1 E4340EA
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 [VCR 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.
Note: JP4017 (V-OUT), TP4302 (RF-SW),
VR4501 (Switching Point) --- AV CBA
Reference Notes:
Playback the Alignment tape and adjust VR4501 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.
Test point Adj. Point Mode Input
JP4017(V-OUT)
TP4302(RF-SW)
GND
VR4501
(Switching
Point)
PLAY
(SP) -----
Tape Measurement
Equipment Spec.
FL8A Oscilloscope 6.5H ± 1H
(412.7µs±63.5µs)
Connections of Measurement Equipment
Figure 1
Oscilloscope
AV CBA
JP4017
CH1 CH2
Trig. (+)
GND
TP4302
EXT. Syncronize Trigger Point
1.0H
CH1
CH2
Switching Pulse
V-Sync
0.5H
6.5H±1H (412.7µs±63.5µs)