Funai DRVA-2621, DRVA-2631, DRVA-2677, DRVB-2737 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 RECORDER &
VIDEO CASSETTE RECORDER
DRV-A2621
DRV-A2631
DRV-A2677 DRV-B2737
PAL
MAIN SECTION
DVD RECORDER &
VIDEO CASSETTE RECORDER
DRV-A2621/DRV-A2677/
DRV-A2631/DRV-B2737
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 Recorder & 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 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 E9710SP
< DVD Section >
Item Conditions Unit Nominal Limit
1. VIDEO
1-1. Video Output 75 Ω load Vp-p 1.0
1-2. S-Video Output
Y (Luminance) 75 Ω load Vp-p 1.0
C (Chrominance) 75 Ω load Vp-p 0.3
2. AUDIO
2-1. Output Level Vrms 2.0
2-2. Frequency Response
DVD-VIDEO LPCM fs = 96 kHz Hz 20 - 44 k
fs = 48 kHz Hz 20 - 20 k
Audio CD fs = 44.1 kHz Hz 20 - 20 k
2-3. Signal/Noise Ratio
DVD-VIDEO LPCM dB 85
CD dB 85
REC & Playback Input: 2 Vrms, Rec Speed: SP dB 85
2-4. THD+N 1 kHz, 0 dB
DVD-VIDEO LPCM % 0.01
CD % 0.01
REC & Playback Input: 2 Vrms, Rec Speed: SP % 0.01
3. TUNER
3-1. Video Output 75 Ω load Vp-p 1.0
3-2. Video S/N dB 42
3-3. Audio Output dBv -12
3-4. Audio S/N dB 46
Notes:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply: 220 - 240 V ~ 50 Hz
3. Load imp.: 100 kΩ
4. Room ambient : 5 °C ~ 40 °C
1-1-2 E9710SP
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 Mechanism Assembly
Laser Beam Radiation
Laser Pickup
Turntable
Location: Top of DVD mechanism.
1-2-1 R2P_LASER
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 produc-
ing parts (heatsinks, 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 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 distance (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 Terminals
dd'
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 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.
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 Regulator ICs is indicated as shown.
Top View
Input
Out
2. For other ICs, pin 1 and every fifth pin are indicated
as shown.
In
Pin 1
3. The 1st pin of every male connector is indicated 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 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
(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. 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)
* 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 damage 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 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
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 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
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
1-4-2 DVD_NOTE
(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.
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 “I” 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
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 potential difference caused by electrostatic 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
(1) 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.
< 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 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.
Q503
Q504
S-INH
TP501
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 E9710PFS
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.
[16] Power
SW CBA
[14] VCR
Chassis Unit
[18] Rear
Jack CBA
[19] Main,
AFV CBA
[10] DC
Fan Motor
[8] Rear
Panel Unit
[9] Power
Supply CBA
[11] PCB
Holder
[20] Deck
Pedestal
[15] Deck
Assembly
[17] Function
CBA
[2] Front
Assembly
[1] Top Cover
[4] Radiation
Sheet
[12] Rear
Panel
[6] Front Jack
CBA
[5] Jack
Bracket
[3] Front
Bracket
[21] Front
Bracket R
[7] DVD
Mechanism
& DVD Main
CBA Assembly
[13] Bracket R
2. Disassembly Method
ID/
LOC.
No.
PART
Fig.
No.
[1] Top Cover D1 6(S-1) ---
Front
[2]
[3]
[4]
[5]
[6]
Assembly
Front
Bracket
Radiation
Sheet
Jack
Bracket
Front Jack
CBA
D2
D2 2(S-2), (S-3), ---
D2 ---------- ---
D3 2(S-4) ---
D3 Jack Earth Plate ---
DVD
Mechanism
[7]
& DVD
D4
Main CBA
Assembly
Rear Panel
[8]
Unit
D5
REMOVAL
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
*5(L-1), *3(L-2),
*CN1505
2(S-5A), 2(S-5B),
*CN501, *CN601
5(S-6), 3(S-7), (S-8A),
(S-8B), *CN1503,
*CN1504
Note
1
1-1
1-2
1-3
---
---
ID/
LOC.
No.
PAR T
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
Note
Power
REMOVAL
[9]
Supply
D6 4(S-9) ---
CBA
DC Fan
[10]
[11]
Motor
PCB
Holder
D6 2(S-10) ---
3(S-11), Earth Plate
D6
---
[12] Rear Panel D6 ---------- ---
[13] Bracket R D7 2(S-12) ---
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
↓
(1)
VCR
Chassis
Unit
Deck
Assembly
Power SW
CBA
Function
CBA
Rear Jack
CBA
Main, AFV
CBA
Deck
Pedestal
Front
Bracket R
↓
(2)
5(S-13), 5(S-14),
D7
(S-15), (S-16)
(S-17), (S-18),
D8
Desolder
---
2
3
D8 Desolder ---
D8 Desolder ---
Desolder, Ground
D8
Plate
---
D8 ---------- ---
D9 8(S-19) ---
D9 (S-20) ---
↓
(3)
↓
(4)
↓
(5)
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. 6(S-1) = six Screws (S-1),
5(L-1) = five Locking Tabs (L-1)
(5): Refer to “Reference Notes.”
1-6-1 E9710DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Release five Locking Tabs (L-1).
1-2. Release three Locking Tabs (L-2)
1-3. Disconnect Connector (CN1505), and remove
the Front Assembly.
2. When reassembling, solder wire jumpers as shown
in Fig. D8.
3. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. D8. 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. D8.
(S-1)
(S-1)
[1] Top Cover
(S-1)
CN601
(S-5A)
[7] DVD
Mechanism
&
DVD Main
CBA
Assembly
[5] Jack Bracket
Jack Earth Plate
CN501
(S-4)
[6] Front
Jack CBA
Fig. D3
(S-5A)
(S-5B)
(S-2)
[3] Front
Bracket
(L-2)
Fig. D1
[4] Radiation Sheet
(S-2)
(S-3)
Fig. D4
(L-1)
(L-1)
CN1505
[2] Front
Assembly
(L-1)
Fig. D2
1-6-2 E9710DC
(S-7)
(S-8A)
(S-6)
CN1503
(S-7)
[8] Rear
Panel Unit
(S-8B)
(S-7)
(S-13)
(S-15)
(S-14)
(S-14)
(S-16)
[14] VCR
Chassis
Unit
(S-13)
(S-13)
(S-14)
(S-14)
(S-14)
(S-12)
[12] Rear Panel
[10] DC Fan Motor
CN1504
(S-11)
[13] Bracket R
Fig. D5
Fig. D7
(S-10)
(S-11)
[9] Power
Supply CBA
(S-9)
(S-9)
(S-9)
Earth
Plate
[11] PCB
Holder
Fig. D6
1-6-3 E9710DC
[15] Deck
Assembly
FE Head
[19] AFV CBA
[16] Power
SW CBA
Cylinder
Assembly
ACE Head
Assembly
[18] Rear
Jack CBA
Pin
SW507
LD-SW
Ground Plate
[19] Main CBA
Lead
with
blue
stripe
(S-17)
Desolder
From
Capstan
Motor
Assembly
Desolder
from bottom
(S-18)
[17] Function CBA
Desolder
Lead with
blue stripe
Printing side
[19] Main
CBA
From
ACE Head
Assembly
Desolder
LD-SW
Lead with
blue stripe
Lead with
blue stripe
Desolder
[15] Deck Assembly
Shaft
Hole
From
Cylinder
Assembly
From
FE Head
Hole
Pin
Desolder
Lead with
gray stripe
Cam Gear
[19] Main CBA
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
1-6-4 E9710DC
Fig. D8
(S-19)
(S-19)
[20] Deck
Pedestal
[21] Front
Bracket R
(S-20)
Fig. D9
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.
View for A
Do not touch!
Rotate this gear in
the direction of the arrow
A
1-6-5 E9710DC
< 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 Main CBA Assembly.
Then, remove the DVD Mechanism Unit.
2. Remove two screws, and remove the Insulating
Plate.
Screw
Insulating Plate
4. Release the other side of two Locking Tabs, and
remove the Clamper Assembly.
Clamper Assembly
Locking Tabs
5. Remove the disc.
Disc
Do not touch!
3. Release two Locking Tabs, and lift up one side of
the Clamper Assembly.
Clamper Assembly
Locking Tabs
1-6-6 E9710DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
c
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 procedures, make sure that the tracking control is set in
the center position: Press either "PROG. L5??" or
"PROG. 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: 0.001~50V/Div.,
F-Range: DC~AC-20MHz
2.Alignment Tape (FL6A)
Head Switching Position Adjustment
Figure 1
EXT. Syncronize Trigger Point
CH1
CH2
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.
1.0H
6.5H±1H (416µs±64µs)
Switching Pulse
0.5H
V-Syn
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
J236(JK1-V-OUT)
TP504(RF-SW)
GND
Tape
FL6A Oscilloscope
Connections of Measurement Equipment
TP751
Main CBA
TP504
VR501
(Switching Point)
(MAIN CBA)
Measurement
Equipment
GND
PLAY
(SP)
Spec.
6.5H±1H
(416µs±64µs)
Oscilloscope
-----
CH1 CH2
Trig. (+)
1-7-1 H9710EA
HOW TO INITIALIZE THE DVD RECORDER & VCR
To put the program back at the factory-default, initialize the DVD recorder & VCR as the following procedure.
< DVD Section >
1. Turn the DVD recorder on.
2. Confirm that no disc is loaded or that the disc tray
is open. To put the DVD recorder into the Version
display mode, press [CM SKIP], [1], [2], and [3]
buttons on the remote control in that order.
Fig. a appears on the screen.
*1: "
*2: Firmware Version differs depending on the
models, and this indication is one example.
" differs depending on the models.
*******
F/W VERSION
Model Name :
Firmware Version
BE :
FE :
API :
TT :
DEFAULT SETTING : ENTER
EXIT : RETURN
*******
W2E3075H2D
R20_054_000
Ver 1.09
T20031GVP
Fig. a Version Display Mode Screen
3. Press [ENTER] button, then the DVD recorder
starts initializing. When the initializing is
completed, the DVD recorder exits the Version
display mode and turns off the power
automatically.
* To move into the Normal mode from the
Version display mode, press [RETURN] button
on the remote control instead of [ENTER]
button.
* When [STANDBY-ON] button is pressed
before [ENTER] button is pressed, the DVD
recorder exits the Version display mode, then
the power turns off.
1-8-1 E9700INT
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray.
2. To put the DVD recorder into version up mode,
press [CM SKIP], [6], [5], and [4] buttons on the
remote control unit in that order. Then the tray will
open automatically.
Fig. a appears on the screen and Fig. b appears
on the VFD.
* Firmware Version differs depending on the
models, and this indication is one example.
Firm Update Mode
Please insert a disc.
Fig. a Version Up Mode Screen
Fig. b VFD in Version Up Mode
ver. W2E3075H2D
Current
F/W version
is displayed.
4. Select the firmware version pressing arrow
buttons, then press [ENTER].
Fig. d appears on the screen and Fig. e appears
on the VFD. The DVD recorder starts updating.
About VFD indication of Fig. e:
1) When Fig. d is displayed on the screen, “F-UP”
is displayed on the VFD.
2) When “Firmware Updating... XX% Complete.”
is displayed on the screen, “XX”% is displayed
on the VFD.
* Firmware Version differs depending on the
models, and this indication is one example.
Selected
F/W version
is displayed.
Firm Update Mode
W2E3075H2D
File Loading...
(*1)
Fig. d Programming Mode Screen
ver.
W2E3075H2D
3. Load the disc for version up.
Fig. c appears on the screen. The file on the top is
highlighted as the default.
When there is only one file to exist, Step 4 will
start automatically.
* Firmware Version differs depending on the
models, and this indication is one example.
Firm Update Mode ver. W2E3075H2D
Disc name
is displayed.
VOL_200408250934
1 W2E3075H2D
2 W2E3076H2D
3 W2E3077H2D
4 W2E3078H2D
Fig. c Update Disc Screen
Files included
in the disc are
displayed.
1 / 1
Fig. e VFD in Programming Mode (Example)
The appearance shown in (*1) of Fig. d is
described as follows.
No. Appearance State
1 File Loading... Sending files into the memory
Firmware
2
Updating...
Writing new version data
XX% Complete.
Firmware
--Update Failure
Failed in updating
1-9-1 E9700FW
5. After updating is finished, the tray opens
automatically.
Fig. f appears on the screen and Fig. g appears on
the VFD.
* Firmware Version differs depending on the
models, and this indication is one example.
Firm Update Mode ver. W2E3075H2D
W2E3075H2D
B/E Firmware
Update End
Fig. f Completed Program Mode Screen
Fig. g VFD in Completed Program Mode
At this time, no button is available.
6. Press [STANDBY-ON] button to turn the power off.
Then press it again.
1-9-2 E9700FW
FUNCTION INDICATOR SYMBOLS
< VCR Section >
Note:
If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [FUNCTION] 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
SP 0 : 00 : 00
Recording mode
Elapsed time
Fig. 1
When the drum is not working properly
A
D
SP 0 : 00 : 00
Recording mode
Elapsed time
Fig. 4
When tape loading mechanism is not functioning correctly
A
T
SP 0 : 00 : 00
Recording mode
When cassette loading mechanism is not functioning
correctly
A
C
Elapsed time
Fig. 2
SP 0 : 00 : 00
Recording mode
Elapsed time
Fig. 3
P-ON Power safety detection
A
P
SP 0 : 00 : 00
Recording mode
Elapsed time
Fig. 5
1-10-1 E9700FIS
< DVD Section >
Note: If an error occurs, a message with the error number appears on the screen.
Recording Error
Message Solution
Can not record on this disc.
This program is not allowed to
be recorded.
This program is not recordable
in Video mode.
This program is not allowed to
be recorded on this disc.
You cannot record on this disc as
Power Calibration Area is full.
Insert the recordable disc, and
ensure the disc status satisfies
the recording requirements.
You cannot record copy
prohibited programs.
Set “DVD-RW Recording
Format” to “VR mode”.
Insert a ver.1.1 CPRM
compatible DVD-RW disc.
Error message
E35
Error
No.
1 An error occurs during data reading. -
2
3
4 An error occurs with OPC. -
5 During recovery in a record. -
6
7 An error occurs in a format. -
8 It cannot start an encode. -
9
10
11
12
13 It is a reply that “ATAPI is not readable.” -
14
15
16 An error occurs in Finalize Close. -
17 An error occurs in Rec Stop Close. -
18 An error occurs in PCA Full (DVD_R). -
19 Safety Stop occurs during editing. -
20 High Speed Disc. 2
21 The disc which is not formatted. 5
22 The disc that Disc Error occurred. 3
23 The -R Disc of VR Mode. 6
24
25 During the Macrovision picture input. 11
26 During the CGMS picture input. 12
27
28
Error No.
Error Description Priority
There is no reply for 15 seconds in Test
Unit Ready.
Cannot write the data after trying to write
three times.
An error occurs even if it do recovery of a
record three times.
There is not NV_PCK/RDI_PCK in data
doing an encode.
Encode Pause condition continued for 10
minutes.
Encode Pause condition continued by
normal REC condition for 10 minutes.
Differ in an address and do not get
StreamID of RDI/VIDEO.
Cannot write the data after recovering
SMALL VMGI.
Cannot write the data after DVD-R
Reverse Track.
The disc except DVD-R/RW or DVD-R
finalized disc
During the CGMS picture (possible a
record once) input. (Video Format Disc)
During the CGMS picture (possible a
record once) input. (Disc which there is
not for the correspondence to VR Format
CPRM)
-
-
-
-
-
-
-
-
-
1
12
12
1-10-2 E9700FIS
Message Solution
This disc is protected and not
recordable.
Disc is full.
(No area for new recording)
You cannot record more than
99 titles on one disc.
(The maximum is 99.)
You cannot record more than
999 chapters on one disc.
(The maximum is 999.)
You cannot record on this disc
as Control Information is full.
You cannot record on the disc
as Power Calibration Area is
full.
This disc is already finalized.
Can not record on this disc. Repeat the same operation.
Release the disc protect
setting in the Disc Setting
menu.
Insert the recordable disc with
enough recording space.
Delete unnecessary titles.
Delete unnecessary chapter
markers.
Delete unnecessary titles. 34
Insert a new disc. 35 PCA Full. (in REC start) 4
Release the finalizing for this
disc.
Error
No.
Error Description Priority
29 Disc Protected Disc. 7
30 There is no it in a space field. 5
It is recorded a 99 title. (Video Format
31
Disc)
32 It is recorded a 99 title. (VR Format Disc) 8
There is 999 number of total chapter. (VR
33
Format Disc)
There is not a space to a record field of
control information.
36 It is done Finalize. (Video Format Disc) 6
37 Access to Memory Area range outside. -
38 Sector Address is wrong. -
39 BUP writing error of chapter editing. -
7
9
10
If an error occurs during the timer recording, one of the following error numbers (40 to 42) or the above error
messages (error number: 1 to 39) is displayed on the recording menu after timer recording.
(Once the screen of the program line is exited, the program line for the error will be cleared.)
(No Error Message is displayed for the error No. 40 ~ 42.)
[Example: DRV-A2621/DRV-A2631]
A program with the error number is grayed out and asterisked on the timer programming list.
Message Solution
Error message is not
displayed.
Timer Programming
Date Start End CH Speed
JAN/01 12:57AM 1:57AM 8 DVD E40
*
2. ---
3. ---
4. ---
5. ---
6. ---
7. ---
8. ---
- Set the timer programming
correctly.
- Set the timer programming
before the start time.
- Insert a recordable videotape
with a record tab.
Turn the power on and set the
clock correctly then set timer
programming again.
Insert the recordable disc. 42 No disc when recording -
VCR DVD
DVD
VCR
The speed mode changes
to the error number.
Error
No.
Error Description Priority
- Some portion has not been recorded
because of program overlapping.
40
- Recording did not start at the start time.
- No Videotape is inserted.
Videotape ran out during recording.
41 Power failed -
-
1-10-3 E9700FIS
BLOCK DIAGRAMS
Servo/System Control Block Diagram
A
B
D
Model Mark
DRV-A2621
Comparison Chart of
Models & Marks
DRV-A2677
C
DRV-A2631
DRV-B2737
DUBBING
OPEN/CLOSE
SW682
SW681
CN510 CN681
TP501
DVD KEY
FUNCTION CBA
OPEN/CLOSE-SW
DUBBING-SW
11
22
SENS-INH
8
SWITCH
7
VCR KEY
REMOTE
RM1501
14
SWITCH
SENSOR
AL+5V
POWER
POWER
SW671
D671
POWER SW CBA
CN671
POWER-LED
33POWER-SW
22
CN508
1
IC612
(FIP DRIVER)
POWER-LED
AL+5V
31
REC-SAFETY
SW506
DVD
D502
3
DVD-LED
VCR
D503
2
VCR-LED
FL601
42
1G
AL+5V
GRID
36
7G
FIP
SEGMENT
20
28
i
a
DRV-DATA
DRV-CLK
7
8
68
TO AUDIO
IIC-BUS SCL
IIC-BUS SDA
DRV-STB
9
69
TO Hi-Fi AUDIO
BLOCK DIAGRAM
AUDIO-MUTE-H
83
BLOCK DIAGRAM
A-MODE
Hi-Fi-H-SW
IIC-BUS SCL
IIC-BUS SDA
19
IIC-BUS SCL
IIC-BUS SDA
AUDIO-MUTE-2
86
28
71
72
RF-SW
D-REC-H
18
33
TO VIDEO
BLOCK DIAGRAM
H-A-SW
C-ROTA
D-V-SYNC
H-A-COMP
17
16
13
15
V-ENV
C-SYNC
6
58
ST-S
T-REEL
S-REEL
END-S
CTL(+)
CTL(-)
LD-SW
IC501
(SERVO/SYSTEM CONTROL)
9
949510480
79
MAIN CBA
AL+5V
AL+5V
SW507
LD-SW
END-S
TP502
CN504
5 CTL(+)
6 CTL(-)
KEY- 2
PS502
Q506
D555
KEY- 1
Q515
S-REEL
T-REEL
S-LED
REMOCON-IN
CTL
RESET
34
97
TP503
RESET
AL+5V
TIMER+5V
REC-SAF-SW
PG-DELAY
2
CTL
VR501
SW-POINT
CN1502CN601
SYSTEM-RESET
S-DATA-OUT
S-DATA-IN
READY/BUSY
S-CLOCK
64
656366
67
Q517
Q516
3029272528
SYS-RESET
SUB-RXD27SUB-TXD25SUB-SCLK
29
Y2A2V7
H2
SUB-TXD
SUB-RXD
SUB-SCLK
RDY
28
U8
RDY
30
SYS-RESET
CN502
DVD MAIN CBA
CAPSTAN MOTOR
DRV-CLK70DRV-STB
DRV-DATA
LM-FWD/REV
C-CONT
C-F/R
78
76
81
MOTOR
DRIVE
CIRCUIT
D-CONT
D-PFG
77
90
D-CONT9D-PFG
8
C-FG
87
C-FG4C-F/R5C-CONT7LM-FWD/REV
3
M
CAPSTAN
MOTOR
A-MODE
Hi-Fi-H-SW
VCR-AUDIO-MUTE
D-REC-H
IIC-BUS SCL
IIC-BUS SDA
AUDIO-MUTE-2
VIDEO-SW1
OUTPUT-SELECT
22
82
IIC-BUS SDA
IIC-BUS SCL
OUTPUT-SELECT
VIDEO-SW2
VIDEO-SW1
H-A-SW
D-V-SYNC
H-A-COMP
B,D
DAVN-L
56
RGB-THROUGH
DAVN-L
V-ENV
C-SYNC
DVD-AUDIO-MUTE
OUTPUT-SELECT
RF-SW
C-ROTA
VIDEO-SW2
VIDEO-SW327RGB-THROUGH
23
24
VIDEO-SW3
DVD-AUDIO-MUTE
29
RGB-THROUGH
IIC-BUS SCL
IIC-BUS SCL
OUTPUT-SELECT
CONTROL
HEAD
ACE HEAD ASSEMBLY
(DECK ASSEMBLY)
SENSOR CBA
ST-S
Q504
SENSOR CBA
END-S
Q503
IC601 (DVD MICRO CONTROLLER)
1-11-1
PG
SENSOR
M
CYLINDER ASSEMBLY
DRUM
MOTOR
M
LOADING
MOTOR
TO VIDEO
INPUT SELECT
BLOCK DIAGRAM
TO VIDEO
OUTPUT SELECT
BLOCK DIAGRAM
TO AUDIO
INPUT/OUTPUT
E9700BLS
SELECT
BLOCK DIAGRAM
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