Symphonic WF719 Schematic
SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
19" COLOR TV/DVD/VCR
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
WF719
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List
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
19" COLOR TV/DVD/VCR
WF719
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
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
Operating Controls and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
FIRMWARE Renewal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Schematic Diagrams / CBA’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
SPECIFICATIONS
*ˆMode---------SP mode unless otherwise specified
*Test input terminal
<Except Tuner>-------------Video input (1Vp-p)
Audio input (-10dB)
<Tuner>-----------------------Ant. input (80dBµV) Video: 87.5%
Audio: 25kHz dev (1kHz Sin)
<DEFLECTION>
Description Condition Unit Nominal Limit
1. Over Scan — % 90 —
2. Linearity
3. High Voltage — kV 25 —
Horizontal % — 15
Vertical % — 10
<VIDEO & CHROMA>
Description Condition Unit Nominal Limit
Center m/m — 0.4
1. Misconvergence
2. Tint Control Range — deg ±30 —
3. Contrast Control Range — dB 6 2
4. Brightness (100% White Full Field) Contrast: Max ft-L 35 24
5. Color Temperature — K 9200 —
Corner m/m — 2.5
Side m/m — 1.5
<DVD>
Description Condition Unit Nominal Limit
1. Horizontal Resolution (TDV-540 TIT.2 CHP.16) — Line 330 320
2. Video S/N at CN3400 (TDV-540 TIT.2 CHP.6) — dB 60 55
3. S/N Chroma at CN3400 AM — dB 58 53
(TDV-540 TIT.2 CHP.17) PM — dB 58 53
4. Audio Distortion (LPCM 48 kHz, W/LPF)
(PTD 1-NOR TIT.1 CHP.1)
5. Audio freq. response (LPCM 48kHz)
(PTD 1-NOR TIT.1 CHP.5 -- 10)
6. Audio S/N (LPCM 48KHz,W/LPF,A-WTD)
(PTD 1-NOR TIT.1 CHP.1 -- 2)
L
R
L, 20 Hz
R, 20 Hz
L, 20 kHz
R, 20 kHz
L
R
1-1-1 TD851SP
%
dB 0 +4/-5
dB 85 75
0.03
0.03
0.07
0.07
<VCR>
Description Condition Unit Nominal Limit
1. Horizontal Resolution (R/P, SP) Line 230 200
2. Jitter (Low) (R/P, SP) µS0.1 0.2
3. S/N Chroma AM(SP) (R/P, SP) dB 38 33
PM(SP) (R/P, SP) dB 38 33
4. Wow & Flutter (JIS, UNWTD) (R/P, SP) % 0.25 0.5
<TUNER>
Description Condition Unit Nominal Limit
1. Video S/N (80dBµV, TV4ch) — dB 45 40
2. Audio S/N (W/LPF) — dB 45 40
<NORMAL AUDIO>
All items are measured across 8Ω resistor at speaker output terminal.
Description Condition Unit Nominal Limit
1. Audio Output Power (R/P, SP) W 1.0 0.8
2. Audio S/N (W/LPF) (R/P, SP) dB 40 36
3. Audio distortion (W/LPF,-10dB 1kHz IN) (R/P, SP) % 3.0 5.0
4. Audio Freq. Response (-10dB 1kHz IN) 200 Hz (R/P, SP) dB -2.0 -2.0±5.0
8 kHz (R/P, SP) dB 0 0±6.0
<Hi-Fi AUDIO>
All items are measured at TP1701 and TP1702.
Description Condition Unit Nominal Limit
1. Output Level (-10dB 1kHz IN) (R/P, SP) dB -8.0 -8±4
2. Audio Distortion (-10dB 1kHz IN) (R/P, SP) % 0.5 1.0
3. Freq. Response (-15dB 1kHz IN) 20 Hz (R/P, SP) dB 0 ±4
20 kHz (R/P, SP) dB 0 ±4
Note: Nominal specifications represent the design specifications. All units should be able to approximate these.
Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.
1-1-2 TD851SP
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Drive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
WHEN OPEN. DO NOT
CAUTION
LASER RADIATION
STARE INTO BEAM.
Location: Inside Top of DVD mechanism.
1-2-1 DVD_LASER
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, our products are strictly inspected for 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.
Safety Precautions for TV Circuit
1. Before returning an instrument to the custom-
er, always make a safety check of the entire instru-
ment, including, but not limited to, the following
items:
a. Be sure that no built-in protective devices are de-
fective and have been defeated during servicing.
(1) Protective shields are provided on this chassis
to protect both the technician and the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience. (2)
When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all
protective devices, including but not limited to,
nonmetallic control knobs, insulating fishpapers,
adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not oper-
ate this instrument or permit it to be operated
without all protective devices correctly installed and functioning. Servicers who defeat
safety features or fail to perform safety checks
may be liable for any resulting damage.
b. Be sure that there are no cabinet openings through
which an adult or child might be able to insert their
fingers and contact a hazardous voltage. Such
openings include, but are not limited to, (1) spacing
between the picture tube and the cabinet mask, (2)
excessively wide cabinet ventilation slots, and (3)
an improperly fitted and/or incorrectly secured
cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an
electrical jumper across the two AC plug prongs.
Place the instrument AC switch in the on position.
Connect one lead of an ohmmeter to the AC plug
prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the
coaxial connector. If the measured resistance is
less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected
before the instrument is returned to the customer.
Repeat this test with the instrument AC switch in
the off position.
d. Leakage Current Hot Check - With the instru-
ment completely reassembled, plug the AC line
cord directly into a 120V AC outlet. (Do not use an
isolation transformer during this test.) Use a leak-
age current tester or a metering system that complies with American National Standards Institute
(ANSI) C101.1 Leakage Current for Appliances
and Underwriters Laboratories (UL) 1410, (50.7).
With the instrument AC switch first in the on position and then in the off position, measure from a
known earth ground (metal water pipe, conduit,
etc.) to all exposed metal parts of the instrument
(antennas, handle brackets, metal cabinet, screw
heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current
measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet
and repeat the test.
READING SHOULD
NOT BE ABOVE 0.5 mA
LEAKAGE
DEVICE
BEING
TESTED
TEST ALL EXPOSED
METAL SURFACES
ALSO TEST WITH
PLUG REVERSED
USING AC
ADAPTER PLUG
AS REQUIRED
CURRENT
TESTER
EARTH
GROUND
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL
SHOCK HAZARD THAT MUST BE ELIMINATED
BEFORE RETURNING THE INSTRUMENT TO
THE CUSTOMER OR BEFORE CONNECTING
THE ANTENNA OR ACCESSORIES.
e. X-Radiation and High Voltage Limits - Because
the picture tube is the primary potential source of
X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions.
For continued X-radiation protection, the replacement picture tube must be the same type as the
original. Also, because the picture tube shields
and mounting hardware perform an X-radiation
protection function, they must be correctly in place.
High voltage must be measured each time servic-
1-3-1 TD204IMP
ing is performed that involves B+, horizontal deflection or high voltage. Correct operation of the
X-radiation protection circuits also must be reconfirmed each time they are serviced. (X-radiation
protection circuits also may be called "horizontal
disable" or "hold down.") Read and apply the high
voltage limits and, if the chassis is so equipped,
the X-radiation protection circuit specifications given on instrument labels and in the Product Safety
& X-Radiation Warning note on the service data
chassis schematic. High voltage is maintained
within specified limits by close tolerance safety-related components/adjustments in the high-voltage
circuit. If high voltage exceeds specified limits,
check each component specified on the chassis
schematic and take corrective action.
2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the
receiver chassis, or on the picture tube.
3. Design Alteration Warning - Do not alter or add
to the mechanical or electrical design of this TV receiver. Design alterations and additions, including,
but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video
output connections, might alter the safety characteristics of this receiver and create a hazard to the
user. Any design alterations or additions will void
the manufacturer's warranty and may make you,
the servicer, responsible for personal injury or
property damage resulting therefrom.
4. Picture Tube Implosion Protection Warning -
The picture tube in this receiver employs integral
implosion protection. For continued implosion protection, replace the picture tube only with one of
the same type number. Do not remove, install, or
otherwise handle the picture tube in any manner
without first putting on shatterproof goggles
equipped with side shields. People not so
equipped must be kept safely away while picture
tubes are handled. Keep the picture tube away
from your body. Do not handle the picture tube by
its neck. Some "in-line" picture tubes are equipped
with a permanently attached deflection yoke; because of potential hazard, do not try to remove
such "permanently attached" yokes from the picture tube.
5. Hot Chassis Warning -
a. Some TV receiver chassis are electrically connect-
ed directly to one conductor of the AC power cord
and may be safety-serviced without an isolation
transformer only if the AC power plug is inserted
so that the chassis is connected to the ground side
of the AC power source. To confirm that the AC
power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known
earth ground. If a voltage reading in excess of 1.0V
is obtained, remove and reinsert the AC power
plug in the opposite polarity and again measure
the voltage potential between the chassis and a
known earth ground.
b. Some TV receiver chassis normally have 85V
AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can
be safety-serviced only with an isolation transformer inserted in the power line between the receiver
and the AC power source, for both personnel and
test equipment protection.
c. Some TV receiver chassis have a secondary
ground system in addition to the main chassis
ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation
material that must not be defeated or altered.
6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a.
near sharp edges, b. near thermally hot parts-be
sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage,
and e. antenna wiring. Always inspect in all areas
for pinched, out of place, or frayed wiring. Check
AC power cord for damage.
7. Components, parts, and/or wiring that appear to
have overheated or are otherwise damaged
should be replaced with components, parts, or wiring that meet original specifications. Additionally,
determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.
8. 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 strictly 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.
1-3-2 TD204IMP
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
edged 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
When replacing the power transformer in sets
where the connections between the power cord
and power transformer primary lead wires are performed using crimp type connectors, in order to
prevent shock hazards, perform carefully and precisely the following steps.
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 the crimping tool to crimp the metal sleeve at
the center position. Be sure to crimp fully to the
complete closure of the tool.
L. When connecting or disconnecting the TV/DVD
connectors, first, disconnect the AC plug from AC
supply socket.
1-3-3 TD204IMP
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 original positions. Afterwards, perform the following tests and confirm the specified values in order 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
dd’
AC Line Voltage Region
110 to 130 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
USA or
CANADA
Clearance
Distance (d) (d')
≥ 3.2 mm
(0.126 inches)
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.).
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 both terminals of load
Z. See Fig. 2 and following table.
Table 2: Leakage current ratings for selected areas
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:
110 to 130 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
USA or
CANADA
0.15µF CAP. & 1.5kΩ
RES. connected in
parallel
1-3-4 TD204IMP
i≤0.5mA rms
Exposed accessible
parts
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 5th pin is indicated
as shown:
Pin 1
3. The 1st pin of every pin connector are indicated as
shown:
Pin 1
Input
In
Bottom View
5
10
Instructions for Connectors
1. When you connect or disconnect FFC cable (connector), be sure to disconnect the AC cord.
2. FFC cable (connector) should be inserted parallel
into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
[ CBA= Circuit Board Assembly ]
How to Remove / Install Flat Pack IC
Caution:
3. Do not apply the hot air to the chip parts around the
Flat Pack-IC for over 6 seconds as damage may
occur to the chip parts. Put Masking Tape around
the Flat Pack-IC to protect other parts from damage. (Fig. S-1-2)
4. 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 solder lands under the IC when removing it.
1. Removal
With Hot - Air Flat Pack - IC Desoldering Machine:
a. Prepare the Hot - Air Flat Pack - IC Desoldering
Machine, then apply hot air to Flat Pack - IC (about
5~6 seconds). (Fig. S-1-1)
b. Remove the Flat Pack- IC with tweezers while
applying the hot air.
With Soldering Iron:
a. 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)
b. 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)
With Iron Wire:
a. 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)
b. Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
c. Pull up on the wire as the solder melts so as to lift
the IC leads from the CBA contact pads, while
heating the pins using a fine tip soldering iron or
hot air blower.
Note:
When using a soldering iron, care must be taken
to ensure that the Flat Pack - IC is not being held
by glue, or when it is removed from the CBA, it
may be damaged if force is used.
2. Installation
a. 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.
1-4-1 TD705NOTE
b. The "I" mark on the Flat Pack - IC indicates pin 1
(See Fig. S-1-6). Make sure this mark matches the
1 on the CBA when positioning for installation.
Then pre - solder the four corners of the Flat PackIC (See Fig. S-1-7).
c. Solder all pins of the Flat Pack - IC. Make sure that
none of the pins have solder bridges.
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
Hot Air Blower
CBA
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-1
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-2
Desoldering Braid
To Solid
Mounting Point
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
or
Iron Wire
Soldering Iron
Fig. S-1-5
Fig. S-1-6
Soldering Iron
Fig. S-1-3
1-4-2 TD705NOTE
CBA
Presolder
Flat Pack-IC
Fig. S-1-7
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
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.
Ground for Work Bench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the work bench or
other surface, where the semiconductors are to be
placed. Because the static electricity charge on the
clothing will not escape through the body grounding
band, be careful to avoid contacting semiconductors to
clothing.
<Incorrect>
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-4-3 TD705NOTE
PREPARATION FOR SERVICING
How to Enter the Service Mode
Caution: 1
1. Optical sensors system are used for Tape Start and
End Sensor on this equipment. Read this page
carefully and prepare as described on this page
before starting to service; otherwise, the unit may
operate unexpectedly.
Preparing: 1
1. Cover Q202 (START SENSOR) and Q201 (END
SENSOR) with Insulation Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwarding the
tape to its beginning or end, because both Tape End
Sensors are not active.
How to Enter the Service Mode
1. Turn power on.
2. Use service remote control unit and press DISC
MENU key. (See page 1-8-1)
3. When entering the service mode, one of the number (1, 2 or 4) will display at corners of the screen.
4. During the service mode, electrical adjustment
mode can be selected by remote control key. (Service remote control unit).
Details are as follows.
Key Adjustment Mode
8
9
VOL p Cut-off Adjustment 1-8-3.
Caution: 2
1. The deck mechanism assembly is mounted on the
Main CBA directly, and SW1211 (REC-SAFETY
SW) is mounted on the Main CBA. When deck
mechanism assembly is removed from the Main
CBA due to servicing, this switch can not be operated automatically.
H. Shift adjustment mode: See adjustment instructions page 1-8-2.
V.size/V. shift adjustment: See adjustment instructions page 1-8-2.
Preparing: 2
1. To eject the tape, press the STOP/EJECT button
on the unit (or Remote Control).
2. When you want to record during the Service mode,
press the Rec button while depressing SW1211
(REC-SAFETY SW) on the Main CBA.
Q201
(END SENSOR)
Q202
(START SENSOR)
Key Adjustment Mode
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *COL
MENU
0 No need to use.
1 No need to use.
2
3 No need to use.
4
5
6 No need to use.
7
(Color), *TNT(Tint) and *V-T. Press
CH UP/DOWN key to display Initial
Value. *Marked items are not necessary to adjust normally.
H adjustment mode: See adjustment
instructions page 1-8-2.
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
Head switching point adjustment
mode: See adjustment instructions
page 1-8-4.
Purity check mode: Shows Red,
Green, Blue or White cyclically on the
screen each time the “7” key is
pressed.
SW1211
(REC-SAFETY SW)
MAIN CBA
1-5-1 TD945PFS
)
e
)
d
.
l
Starts playback of the disc or tape contents.
POWER V OLUME SKIP SKIP STOP OPEN/CLOSEPLAY
SEARCH
SELECT
DVD TV/VCR
CHANNEL REC/OTR REW PLAY F.FWD STOP/EJECT
HEADPHONE VIDEO L AUDIO R
12 456 10 1514 49873 3 11 12 13 21
20
19181716
DVD buttons
TV/VCR buttons
PAUSE
PLAY
STOP
ENTER
RECORD
DISC
MENU
RETURNTITLESETUP
A
-
B
REPEATSEARCH MODE
CLEAR
MODE
ANGLESUBTITLEAUDIO
DISPLAY
SPEED C.RESET
POWER PICTURE SELECTSLEEP
CH.
VOL.
MUTEZOOM
123
456
789
0 +10
+100
34
35
23
24
26
25
(DVD) 3
(TV/VCR) 14
13
27
28
30
31
33
32
29
4
36
37
38
41
3 (DVD)
15 (TV/VCR)
43
2
11
45
44
42
5
39
40
1
22
OPERATING CONTROLS AND FUNCTIONS
- TV/DVD/VCR FRONT PANEL -
- REMOTE CONTROL -
POWER Button
1.
Press to turn the power on and off.
2.VOLUME X/Y Buttons
Press to control the volume level for the DVD and TV.
3.SKIP Buttons (for DVD)
Press once to skip chapters or tracks to a desired
point.
Press and hold to change forward or reverse playback speed.
4.PLAY Button
5.STOP Button
Stops operation of the disc. (Front Panel)
Stops operation of the disc or tape. (Remote control
6.OPEN/CLOSE Button
Press to insert discs into or remove them from th
tray.
7.
Disc loading tray
8.DVD Indicator
Lights on during DVD mode.
9.
SELECT Button
Press to change to TV/VCR mode, external input
mode or DVD mode.
TV/VCR Indicator
10.
Lights on during TV/VCR mode.
CHANNELK/LButtons
11.
Press to select memorized channel.
Recording Indicator
12.
Flashes during recording. Lights up in the Standby mode for Timer Recording.
REC/OTR (RECORD)Button
13.
Press for manual recording. Activates One Touch
Recording. (OTR is only during TV/VCR mode.
14.REW Button (for TV/VCR)
Press to rewind the tape, or to view the picture
rapidly in reverse during playback mode. (Rewin
Search)
15.
FWD Button (for TV/VCR)
Press to rapidly advance the tape, or to view the
picture rapidly in forward during playback mode
(Forward Search)
STOP/EJECT Button
16.
Press to stop the tape motion. Press in the Stop
mode to remove tape from the TV/VCR/DVD.
Remote sensor window
17.
18.HEADPHONE Jack
To connect headphone (not supplied) for persona
listening.
VIDEO input Jack
19.
Connect to the video output jack of a video
camera or VCR.
1-6-1 TD859IB
1-6-2 TD859IB
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts, and the CBA in order 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.
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] H.V. CBA (with Holder)
[4] CRT
[5] Shield Box
[6] DVD Mechanism
[7] DVD Main
CBA Unit
[3] Tray Chassis Unit
[10] Deck Assembly
[11] Main CBA
REMOVAL
ID/
LOC.
No.
PAR T
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
DESOLDER
[7]
[8]
[9]
[10]
DVD Main
CBA Unit
Power
Supply/AV
CBA
Function
CBA
Deck
Assembly
2(S-7), CN201,
5
CN301
4(S-8), CN2803,
3, 6
CN2804
3 3(S-9) -
7(S-10), 2(S-11),
3, 6
CL1201, CL1401,
CL1402, CL1403
[11] Main CBA 3 3(S-12) -
↓
(1)
↓
(2)
↓
(3)
↓
(4)
Note
2-1
2-2
2-3
3
-
4
↓
(5)
[8] Power Supply/AV CBA
[9] Function CBA
2. Disassembly Method
REMOVAL
ID/
LOC.
PART
No.
Rear
[1]
Cabinet
H.V. CBA
[2]
(With
Holder)
Tr ay
[3]
Chassis
Unit
[4] CRT 4 4(S-4) -
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
DESOLDER
1, 2 4(S-1), 1(S-2), 1(S-3) -
Anode Cap, CN501,
3, 4,
CRT CBA, CN571,
6
CN1301, CN2602
CN1802, CN2801,
3, 6
CN2601
Note
1
-
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order.These numbers
are also used as the Identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two Screw (S-2)
(5): Refer to the following "Reference Notes in the
Table."
[5] Shield Box 3 5(S-5) -
[6]
DVD
Mechanism
CN2401, CN2402,
3, 6
3(S-6)
-
1-7-1 TD859DC
Reference Notes in the Table
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
Reference Notes in the Table
CAUTION 1: Discharge the Anode Lead of the CRT
with the CRT Ground Wire before removing the Anode
Cap.
1. Disconnect the following: Anode Cap, CN501, CRT
CBA, CN571, CN2602, and CN1301.
Then remove H.V. CBA (with Holder).
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 these procedures.
2-1. Slide out the pickup unit as shown in Fig. 5.
2-2. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN201) from
it. If you disconnect the FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. 5)
2-3. Disconnect connector (CN301). Remove two
screws (S-7) and lift the DVD Main CBA Unit.
(Fig. 5)
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. 5)
4. Remove screws 7(S-10) and 2(S-11). Then, desolder connectors (CL1201, C1401, CL1402, CL1403)
and lift up the Deck Assembly.
1-7-2 TD859DC
S-1
[1] REAR CABINET
S-1
ANT.
S-2
1
S-3
S-1
Fig. 1
S-1
S-1
S-1
S-2
S-3
S-1
[1] REAR CABINET
Fig. 2
1-7-3 TD859DC
S-6
S-5
S-5
[5] Shield Box
[3] Tray Chassis Unit
S-5
[6] DVD
Mechanism
S-6
S-8
S-9
S-9
[9] Function
CBA
S-6
S-8
S-8
[8] Power
Supply/
AV CBA
S-10
S-11
S-10
S-11
[10] Deck
Assembly
S-10
S-12
[11] Main
CBA
H.V. CBA
[2] H.V. CBA
(wih Holder)
Fig. 3
1-7-4 TD859DC
S-4
Anode Cap
CRT CBA
S-7
S-4
CN301
CN201
[4] CRT
S-7
[7] DVD Main
CBA Unit
S-4
S-4
Fig. 4
Slide
B
Pickup Unit
View for A
DVD Mechanism
A
Short the three short
lands by soldering
View for B
Fig. 5
1-7-5 TD859DC
DVD MAIN CBA
FACTORY USE
ONLY
ANODE
CRT
GND
CN504A
CN501
FUNCTION CBA
CRT CBA
SCREEN
FOCUS
CL501B
TO SPEAKER
CN2801
CN2805
CN1805
CN2401
MAIN CBA
CL1403
CL1401
CN601
CN2402
CN401
CN2601
AC CORD
POWER SUPPLY/
AV CBA
CN2803
CN1804
CN2602
CN2804
CN1803
CL502A
CL503A
H.V. CBA
CN571
CL501A
TO SPEAKER
CN1802
CL1201
FE HEAD
CYLINDER
ASSEMBLY
CL1402
CN1301
AC HEAD
ASSEMBLY
DECK ASSEMBLY
CAPSTAN
MOTOR
TUNER
Fig. 6
1-7-6 TD859DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note:
"CBA" is abbreviation for "Circuit Board
Assembly."
NOTE:
Electrical adjustments are required after replacing
circuit components and certain mechanical parts.
It is important to perform these adjustments only
after all repairs and replacements have been completed.
Also, do not attempt these adjustments unless the
proper equipment is available.
Test Equipment Required
1. NTSC Pattern Generator (Color Bar W/White Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)
2. AC Milli Voltmeter (RMS)
3. Alignment Tape (FL8A, FL8N), Blank Tape
4. DC Voltmeter
5. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50V/Div,
F-Range: DC~AC-60MHz
6. Frequency Counter
7. Plastic Tip Driver
How to Set up the Service mode:
Service Mode:
1. Use the service remote control unit.
2. Turn the power on. (Use main power on the TV
unit.)
3. To enter the TV mode, press CH UP or CH DOWN
button on the TV unit.
4. Press "DISC MENU" button on the service remote
control unit. (Version of micro computer will display
on the CRT. (Ex: 057-001)
X-Ray Protection Test
X-Ray protection test should be done when replacing
any parts of this chassis.
1. Short test points J551 and J552 (on H.V. CBA).
2. Confirm that the main power turns off.
3. If the main power does not turn off, then replace
the following parts (D591, Q591, R592, R593,
R594 and IC1201).
4. Perform steps 1 to 3 again.
1. DC 114V (+B) Adjustment
Purpose: To obtain correct operation.
Symptom of Misadjustment: The picture is dark and
unit does not operate correctly.
How to make service remote control
unit:
1. Prepare normal remote control unit (Part No.
NE200UD). Remove 4 screws from the back lid
(Fig. 1-1).
SCREW
Remote control unit (Bottom)
2. Cut off pin 10 of the remote control microprocessor
and short circuit pins 10 and 17 of the microprocessor with a jumper wire
Fig. 1-1
Test point Adj. Point Mode Input
J533
(+B)
HEAT SINK
(on H.V.
CBA)
(GND)
Tape M. EQ. Spec.
--- DC Voltmeter +114±0.5V DC
Note: J533(+B), HEAT SINK --- H.V. CBA
,VR2601 --- Power Supply/AV CBA
1. Connect the unit to AC Power Outlet.
2. Connect DC Volt Meter to J533(+B) and HEAT
SINK (on H.V. CBA)(GND).
3. Adjust VR2601 so that the voltage of J533(+B)
becomes +114±0.5V DC.
VR2601 --- -----
1-8-1 TD851EA
2. H Adjustment
3. C-Trap Adjustment
Purpose: To get correct horizontal position and size of
screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test point Adj. Point Mode Input
R583
Tape M. EQ. Spec.
--- Frequency Counter 15.734kHz±300Hz
Note: R583 --- H.V. CBA
1. Connect Frequency Counter to R583.
2. Operate the unit for at least 20 mintes.
3. Enter the Service mode. (See page 1-8-1.) Press
"2" button on the remote control unit and select HADJ Mode.
4. Press CH o / p buttons on the remote control unit
so that the display will change "0" to "7."
5. At this moment, choose display "0" to "7" when the
Frequency counter display is closest to
15.734kHz±300Hz.
6. Turn the power off and on again.
CH o / p
buttons
Video ---
Purpose: To get minimum leakage of the color signal
carrier.
Symptom of Misadjustment: If C-Trap Adjustment is
incorrect, stripes will appear on the screen.
Test point Adj. Point Mode Input
D1304
(Cathode)
(B-OUT)
Tape M. EQ. Spec.
---
minimum
Note: D1304 (Cathode) (B-Out)--- Main CBA
1. Connect Oscilloscope to D1304 (Cathode).
2. Input a color bar signal from RF input.
Enter the Service mode. (See page 1-8-1.)
3. Press "0" button on the remote control unit and
select C-TRAP Mode.
4. Press CH o / p buttons on the remote control unit
so that the carrier leakage B-Out (3.58MHz) value
becomes minimum on the oscilloscope.
5. Turn the power off and on again.
CH o / p
buttons
Oscilloscope
Pattern Generator
Figure
--- Color Bar
---
Fig. 2
1-8-2 TD851EA
4. V. Size Adjustment
6. H. Shift Adjustment
Purpose: To obtain correct vertical height of screen
image.
Symptom of Misadjustment: If V. Size is incorrect,
vertical height of image on the screen may not be
properly displayed.
Test point Adj. Point Mode Input
---
Tape M. EQ. Spec.
--- Pattern Generator 90±5%
1. Enter the Service mode. (See page 1-8-1.)
Press "9" button on the remote control unit and
select V-S Mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press CH o / p buttons on the remote control unit
so that the monoscope pattern is 90±5% of display
size and the circle is round.
CH o / p
buttons
--- Monoscope
5. V. Shift Adjustment
Purpose: To obtain correct vertical position of screen
image.
Symptom of Misadjustment: If V. position is incor-
rect, vertical position of image on the screen may not
be properly displayed.
Purpose: To obtain correct horizontal position and
size of screen image.
Symptom of Misadjustment: Horizontal position and
size of screen image may not be properly displayed.
Test point Adj. Point Mode Input
---
Tape M. EQ. Spec.
--- Pattern Generator ---
1. Enter the Service mode. (See page 1-8-1.)
Press "8" button on the remote control unit and
select H-P Mode.
2. Input monoscope pattern.
3. Press CH o / p buttons on the remote control unit
so that the left and right side of the monoscope pattern are equal to each other.
4. Turn the power off and on again.
CH o / p
buttons
--- Monoscope
7. Cut-off Adjustment
Purpose: To adjust the beam current of R, G, B, and
screen voltage.
Symptom of Misadjustment: White color may be
reddish, greenish or bluish.
Test point Adj. Point Mode Input
Test point Adj. Point Mode Input
---
Tape M. EQ. Spec.
--- Pattern Generator ---
1. Enter the Service mode. (See page 1-8-1.)
Press "9" button on the remote control unit and
select V-P Mode. (Press "9" button then display will
change to V-P and V-S).
2. Input monoscope pattern.
3. Press CH o / p buttons on the remote control unit
so that the top and bottom of the monoscope pattern are equal to each other.
CH o / p
buttons
--- Monoscope
Black
--- Screen-Control Ext.
Tape M. EQ. Spec.
--- Pattern Generator
Figure
PATTERN GENERATOR
RF INPUT
See Reference
Raster /
White
Raster
Notes below
Fig. 3
1-8-3 TD851EA
Notes: Screen Control FBT --- H.V. CBA
FBT= Fly Back Transformer
Use the Remote Control Unit
1. Degauss the CRT and allow CRT to operate for 20
minutes before starting the alignment.
2. Input the Black raster signal from EXT. input.
3. Enter the Service mode. (See page 1-8-1.)
4. Press the "VOL p" button.
(Press "VOL p" then display will change CUT OFF/
DRIVE, 7Fh adjustment and DVD-KEY).
5. Choose CUT OFF/DRIVE mode then press "1" button. This adjustment mode is CUT OFF (R).
6. Increase the screen control so that the horizontal
line just appears on the CRT.
7. Press the "CH o / p" button until the horizontal line
becomes white.
8. Choose CUT OFF/DRIVE mode then press "2" button. This adjustment mode is CUT OFF (G). Press
"CH o / p" until the horizontal line becomes white.
9. Choose CUT OFF/DRIVE mode then press "3" button. This adjustment mode is CUT OFF (B). Press
"CH o / p" until the horizontal line becomes white.
10.Choose CUT OFF/DRIVE mode then press "4" button.
11.Input the White Raster Signal from Video In.
12.Adjust the RED DRIVE as needed with the CH o /
p buttons to get the following value, X= 286, Y=
294.
13.Choose CUT OFF/DRIVE mode then press "5."
Adjust the BLUE DRIVE as needed with the CH o /
p buttons to get the following value, X= 286, Y=
294.
14.Turn the power off and on again.
8. Sub-Brightness Adjustment
Purpose: To get proper brightness.
Symptom of Misadjustment: If Sub-Brightness is
incorrect, proper brightness cannot be obtained by
adjusting the Brightness Control.
Test point Adj. Point Mode Input
---
Tape M. EQ. Spec.
---
White
Note: SMPTE Setup level --- 7.5 IRE
1. Enter the Service Mode. (See page 1-8-1.)
Then input SMPTE signal from RF input.
2. Press PICTURE button. (Press PICTURE button
then display will change BRT, CNT, COL, TNT, and
V-T). Select BRT and press CH o / p buttons so
that the bar is just visible (See above figure).
3. Turn the power off and on again.
CH o / p
buttons
Pattern
Generator
Figure
---
SMPTE
7.5IRE
See below
Black
This bar
just
visible
Fig. 4
1-8-4 TD851EA
9. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Test point Adj. Point Mode Input
--- Focus Control --- Monoscope
4. Press "CH o" or "CH p" button on the remote control unit if necessary. The value will be changed in
0.5H steps up or down. Adjustable range is up to
9.5H. If the value is beyond adjustable range, the
display will change as:
Lower out of range: 0.0H
Upper out of range: -.-H
5. Turn the power off and on again.
Tape M. EQ. Spec.
--- Pattern Generator See below.
Note: Focus VR (FBT) --- H.V. CBA
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes.
2. Face the unit to the East and degauss the CRT
using a Degaussing Coil.
3. Input the monoscope pattern.
4. Adjust the Focus Control on the FBT to obtain clear
picture.
10. SIF Adjustment
Purpose: To set the SIF (Sound Intermediate Fre-
quency).
Symptom of Misadjustment: Audio may not sound
correctly.
Note: This adjustment automatically done by the
chrominance IC (IC1301).
11. CCS Text Box Location
The following 2 adjustments normally are not
attempted in the field. They should be done
only when replacing the CRT then adjust as a
preparation.
13. Purity Adjustment
Purpose: To obtain pure color.
Symptom of Misadjustment: If Color Purity Adjust-
ment is incorrect, large areas of color may not be
properly displayed.
Test point Adj. Point Mode Input
---
Tape M. EQ. Spec.
--- Pattern Generator See below.
Deflection Yoke
Purity Magnet
Figure
--- Red Color
Note: This adjustment automatically done by the
microcomputer.
12. Head Switching Position Adjustment
Purpose: Determine the Head Switching Point during
Playback.
Symptom of Misadjustment: May cause Head
Switching Noise or Vertical Jitter in the picture.
Note: Unit reads Head Switching Position automati-
cally and displays it on the screen (Upper Left Corner).
1. Playback test tape (FL8A, FL8N).
2. Enter the Service Mode. (See page 1-8-1.)
Then press the number 5 button on the remote
control unit.
3. The Head Switching position will display on the
screen; if adjustment is necessary follow step 4.
6.5H(412.7µs) is preferable.
GREEN
1. Set the unit facing east.
2. Operate the unit for over 30 minutes before adjusting.
3. Fully degauss the unit using an external degaussing coil.
4. Set the unit to the AUX Mode which is located
before CH2 then input a red raster from video in.
5. Loosen the screw on the Deflection Yoke Clamper
and pull the Deflection Yoke back away from the
screen. (See Fig. 6.)
6. Loosen the Ring Lock and adjust the Purity Magnets so that a red field is obtained at the center of
the screen. Tighten Ring Lock. (See Fig. 5,6.)
7. Slowly push the Deflection Yoke toward the bell of
the CRT and set it where a uniform red field is
obtained.
8. Tighten the clamp screw on the Deflection Yoke.
RED
BLUE
Fig. 5
1-8-5 TD851EA
14. Convergence Adjustment
Purpose: To obtain proper convergence of red, green
and blue beams.
Symptom of Misadjustment: If Convergence Adjust-
ment is incorrect, the edge of white letters may have
color edges.
Test point Adj. Point Mode Input
5. Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically to obtain the
best overall convergence.
6. Fix the Deflection Yoke by carefully inserting the
DY Wedges between CRT and Deflection Yoke.
---
C.P. Magnet (RB),
C.P. Magnet (RB-G),
Deflection Yoke
Dot Pattern
--Crosshatch
Tape M. EQ. Spec.
--- Pattern Generator See below.
Figure
CRT
COIL
DY WEDGE
COIL CLAMPER
DEFLECTION YOKE
PURITY
SCREW
RB
RB-G
RING LOCK
C.P. MAGNET
CLAMPER
C.P. MAGNET
SCREW
C.P. MAGNET (RB)
R
R
or
Fig. 6
G
B
G
B
Fig. 7
C.P. MAGNET (RB-G)
RB
RB
G
G
Fig. 8
1. Set the unit to the AUX Mode which is located
before CH2, then input a Dot or crosshatch pattern.
2. Loosen the Ring Lock and align red with blue dots
or Crosshatch at the center of the screen by rotating (RB) C.P. Magnets. (See Fig. 7.)
3. Align red / blue with green dots at the center of the
screen by rotating (RB-G) C.P. Magnet.
(See Fig. 8.)
4. Fix the C.P. Magnets by tightening the Ring Lock.
1-8-6 TD851EA
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
[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.
F/W Version Up Mode
Please insert a DISC
for F/W Version Up.
EXIT: SELECT
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. b appears on the screen.
F/W Version Up Mode
VERSION : ********
Reading...(*2)
EXIT: SELECT
5. After programming is finished, the tray opens automatically. Fig. c appears on the screen.
F/W Version Up Mode
VERSION : ********
Completed
SUM : 7abc (*3)
Fig. c Completed Program Mode Screen
At this time, no buttons are available.
6. Unplug the AC cord from the AC outlet. Then plug it
again.
7. Turn the power on by pressing the power button
and the tray will close.
8. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. d appears on the screen.
model: ****** Ver: **** Region: **
1: VFD TEST
2: TT REPEAT PLAY
3: EEPROM CLEAR
4: MEASUREMENT SERVO
5: DISC READ CHECK
6: MECHA CHECK
7: DISC INFO
8: ERROR RATE
EXIT: SELECTRETURN: -----
Fig. d
Fig. b Programming Mode Screen
The appearance shown in (*2) of Fig. b is
described as follows:
AppearanceNo. State
Reading... Sending files into the memory
1
Erasing... Erasing previous version data
2
Programming...
3 Writing new version data
9. Press [3] button on the remote control unit.
Fig. e appears on the screen.
model: ****** Ver: **** Region: **
TEST 3: EEPROM CLEAR
EEPROM CLEAR: OK
EXIT: SELECTRETURN: -----
Fig. e
10.To finish this mode, press [POWER] button.
1-9-1 TD945TEST
Servo/System Control Block Diagram
FUNCTION CBA
SW2401 SW2408
KEY SWITCH
CN2805
5 5KEY1
CN1805
BLOCK DIAGRAMS <TV/VCR Section>
IC1201
(SERVO/SYSTEM CONTROL)
MAIN CBA
SW1201 SW1203,
SW1206 SW1210
KEY SWITCH
AL+5V
5
6
KEY0
KEY1
FROM/TO
DVD SYSTEM
CONTROL/SERVO
BLOCK
<DVD SECTION>
CN401
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CONTROL
HEAD
CYLINDER ASSEMBLY
PG
SENSOR
DRUM
MOTOR
CN2402
21 SCLK
18 CS
22
DVD-REMOTE
Q2621
Q2622
Q2623
POWER SUPPLY / AV CBA
M
LOADING
MOTOR
M
CN2803
1220 SDATA
13
14
DVD-REMOTE
15
5CTL(+)
6CTL(-)
SENSOR CBA
(ST-SENSOR)
CAPSTAN
MOTOR
CN1804
12SDATA
13SCLK
14CS
15
CL1402
Q202
ST-SENS.
CAPSTAN MOTOR
M
Q201
END-SENS.
SENSOR CBA
(END-SENSOR)
C-F/R
FG-GND
P-ON+5V
Q1206
CL1201
1P-ON+12V
2P-ON+5V(3)
3C-FG
4
5C-CONT
6
7LD-CONT
8D-CONT
9D-PFG
10M-GND
11D/L+12V
12D/L+15V
AL+5V
T-REEL
P-ON+12V
P-ON+5V
D/L+15V
D1224 S-LED
D1204 REC
D1216 DVD
D1217
TV/VCR
TIMER+5V
Q1207
Q1211
Q1210
WF3
TP1201
CTL-AMP-OUT
SW1212
LD-SW
Q1205
RESET
AL+5V
SDATA
52
51
SCLK
50
CS
25
DVD-REMOTE
REC-LED
21
DVD-H
48
TV/VCR-LED
26
CTL(+)
95
94
CTL(-)
CTL-AMP-OUT
97
LD-SW1
9
ST-SENS.
7
END-SENS.
T-REEL
80
RESET
34
66
C-F/R
87
C-FG
76
C-CONT
82
LD-CONT
77
D-CONT
90
D-PFG
REMOTE
SCL
SDA
I2C-OPEN
REC-SAFETY
AFT
C-SYNC
DVD-MAIN-POWER
P-ON-H
P-DOWN
ST/SAP-IN
NORMAL-H
Hi-Fi-H-SW
DVD-A-MUTE
A-MUTE
D-REC-H
VOL-CONT
V-H-SW
ENV-DET
REC/EE/PB
DV-SYNC
V-ENV
ROTA
RF-SW
SP/LP/SLP
EXT-H
RENTAL
SPL-PLAY
14
71
72
45
33
74
42
31
84
22
19
69
65
44
11
16
17
27
13
10
15
18
28
29
30
32
RS1201
REMOTE
SENSOR
(MEMORY)
IC1202
SCL
6
5
SDA
CS
7
SW1211
REC
SAFETY
8
DVD-MAIN-POWER
4
ST/SAP-MODE
DVD-A-MUTE
AFT
SCL
SDA
C-SYNC
D-REC-H
P-ON-H
P-DOWN
SDA
SCL
NORMAL-H
Hi-Fi-H-SW
A-MUTE
A-MUTE
D-REC-H
VOL-CONT
EXT-H
DVD-H
V-H-SW
ENV-DET
REC/EE/PB
DV-SYNC
V-ENV
ROTA
RF-SW
SP/LP/SLP
EXT-H
RENTAL
SPL-PLAY
FROM/TO
CHROMA
BLOCK
FROM/TO
POWER
SUPPLY BLOCK
FROM/TO
Hi-Fi AUDIO
BLOCK
FROM/TO
AUDIO BLOCK
FROM/TO
VIDEO BLOCK
1-10-1 1-10-2 TD859BLS
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