ESA EC720E User manual

20" COLOR
TV/DVD/VCR
EC720E
Different parts from original model (6720FDE)
Ref. No. Description Part No.
A1X FRONT CABINET ASSEMBLY T1008UJ 1ESA10162
A1-1 FRONT CABINET T1008UJ 1EM120034
A1-2 CONTROL PLATE T1008UJ 1EM220031
A1-3 BRAND BADGE T9010UL”ESA” 1EM420160
A1-4 CASSETTE DOOR T1008UJ 1EM420198
A1-7 TRAY PANEL T1008UJ 1EM420197
A3#RATING LABEL T1008UJ ----------
A4 Not Used
S1 CARTON T1008UJ 1EM420196
X2#OWNER'S MANUAL T1008UJ 1EMN20069
X3 REMOTE CONTROL NE230UD 151/ECNX501/NE230UD NE230UD
X5 SHEET RETURN STOP T5510UL 1EM420161
SERVICE MANUAL
SUPPLEMENT
This service manual shows only the differences between
the model EC720E and the original model 6720FDE.
All other information is described in the service manual
of the model 6720FDE.

EC720E
T1008UJ
2004-06-22

SERVICEMANUAL
Sec. 1: Main Section
ISpecifications
IPreparation for Servicing
IAdjustment Procedures
ISchematic Diagrams
ICBA’s
Sec. 2: Deck Mechanism Section
IStandard Maintenance
IAlignment for Mechanism
IDisassembly/Assembly of Mechanism
Sec. 3: Exploded views
and Parts List Section
IExploded views
IParts List
20" COLOR TV/DVD/VCR
6720FDD

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 ser-
vice 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
inwhichservicemightbedoneorofthepossiblehazardousconsequencesof
each way. Consequently, Funai has not undertaken any such broad evalua-
tion.Accordingly,aservicerwhousesaserviceprocedureortoolwhichisnot
recommended by Funai must first use all precautions thoroughly so that nei-
ther his safety nor the safe operation of the equipment will be jeopardized by
theservicemethodselected.
Manufactured under license from Dolby Laboratories. "Dolby" and
the double-D symbol are trademarks of Dolby Laboratories.

MAIN SECTION
20" COLOR TV/DVD/VCR
6720FDD
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
Sec. 1: Main Section
ISpecifications
IPreparation for Servicing
IAdjustment Procedures
ISchematic Diagrams
ICBA’s

1-1-1 TD851SP
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>
<VIDEO & CHROMA>
<DVD>
Description Condition Unit Nominal Limit
1. Over Scan — % 90 —
2. Linearity Horizontal % — 15
Vertical % — 10
3. High Voltage — kV 25 —
Description Condition Unit Nominal Limit
1. Misconvergence
Center m/m — 0.4
Corner m/m — 2.5
Side m/m — 1.5
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 —
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) L R%0.03 0.03 0.07 0.07
5. Audio freq. response (LPCM 48kHz)
(PTD 1-NOR TIT.1 CHP.5 -- 10)
L, 20 Hz
R, 20 Hz
L, 20 kHz
R, 20 kHz
dB 0 +4/-5
6. Audio S/N (LPCM 48KHz,W/LPF,A-WTD)
(PTD 1-NOR TIT.1 CHP.1 -- 2) L RdB 85 75

1-1-2 TD851SP
<VCR>
<TUNER>
<NORMAL AUDIO>
All items are measured across 8Ωresistor at speaker output terminal.
<Hi-Fi AUDIO>
All items are measured at TP1701 and TP1702.
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 abso-
lute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifica-
tions.
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
Description Condition Unit Nominal Limit
1. Video S/N (80dBµV, TV4ch) — dB 45 40
2. Audio S/N (W/LPF) — dB 45 40
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
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

1-2-1 DVD_LASER
D
rive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
CAUTION
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 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.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Location: Inside Top of DVD mechanism.

1-3-1 TD204IMP
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, in-
cluding anyremoved forservicingconvenience.(2)
When reinstalling the chassis and/or other assem-
bly 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 in-
stalled 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 ohmme-
ter lead in turn to each tuner antenna input ex-
posed terminal screw and, if applicable, to the
coaxial connector. If the measured resistance is
less than 1.0 megohm or greater than 5.2 mego-
hm, 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 com-
plies 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 posi-
tion 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.), es-
pecially any exposed metal parts that offer an elec-
trical return path to the chassis. Any current
measured must not exceed 0.5 milli-ampere. Re-
verse the instrument power cord plug in the outlet
and repeat the test.
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 special-
ly constructed to prohibit X-radiation emissions.
For continued X-radiation protection, the replace-
ment 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-
DEVICE
LEAKAGE
CURRENT
TESTER
ALSO TEST WITH
PLUG REVERSED
USING AC
ADAPTER PLUG
AS REQUIRED
TEST ALL EXPOSED
METAL SURFACES
READING SHOULD
NOT BE ABOVE 0.5 mA
EARTH
GROUND
BEING
TESTED

1-3-2 TD204IMP
ing is performed that involves B+, horizontal de-
flection or high voltage. Correct operation of the
X-radiation protection circuits also must be recon-
firmed 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 giv-
en 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-re-
lated 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-relat-
ed 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 re-
ceiver. Design alterations and additions, including,
but not limited to circuit modifications and the ad-
dition of items such as auxiliary audio and/or video
output connections, might alter the safety charac-
teristics 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 pro-
tection, 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; be-
cause of potential hazard, do not try to remove
such "permanently attached" yokes from the pic-
ture 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 volt-
meter, 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 re-
gardless of the AC plug polarity. This chassis can
be safety-serviced only with an isolation transform-
er 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 iso-
lated from the AC power line. The two ground sys-
tems are electrically separated by insulation
material that must not be defeated or altered.
6. Observe original lead dress. Take extra care to as-
sure 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 ther-
mally 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 wir-
ing that meet original specifications. Additionally,
determine the cause of overheating and/or dam-
age and, if necessary, take corrective action to re-
move any potential safety hazard.
8. Product Safety Notice - Some electrical and me-
chanical parts have special safety-related charac-
teristics which are often not evident from visual
inspection, nor can the protection they give neces-
sarily be obtained by replacing them with compo-
nents rated for higher voltage, wattage, etc.. Parts
that have special safety characteristics are identi-
fied 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 re-
view continuously and new instructions are issued
whenever appropriate. Prior to shipment from the
factory, our products are strictly inspected to con-
firm with the recognized product safety and electri-
cal codes of the countries in which they are to be
sold. However, in order to maintain such compli-
ance, it is equally important to implement the fol-
lowing precautions when a set is being serviced.

1-3-3 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 ap-
plying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise block-
ing 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 solder-
ing.
F. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fus-
ible 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 per-
formed using crimp type connectors, in order to
prevent shock hazards, perform carefully and pre-
cisely 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. In-
sert 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.

1-3-4 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 posi-
tions. Afterwards, perform the following tests and con-
firm 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 sol-
dered terminals, and between terminals and surround-
ing 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 be-
tween 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
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Region Clearance
Distance (d) (d')
110 to 130 V USA or
CANADA ≥3.2 mm (0.126 inches)
Chassis or Secondary Conductor
dd’
Primary Circuit Terminals
Fig. 1
Fig. 2
AC Voltmeter
(High Impedance)
Exposed Accessible Part
BOne side of
Power Cord Plug Prongs
Z
AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:
110 to 130 V USA or
CANADA
0.15µF CAP. & 1.5kΩ
RES. connected in
parallel i≤0.5mA rms Exposed accessible
parts

1-4-1 TD705NOTE
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indi-
cated as shown:
2. For other ICs, pin 1 and every 5th pin is indicated
as shown:
3. The 1st pin of every pin connector are indicated as
shown:
Instructions for Connectors
1. When you connect or disconnect FFC cable (con-
nector), be sure to disconnect the AC cord.
2. FFC cable (connector) should be inserted parallel
into the connector, not at an angle.
[ 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 dam-
age. (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.
Top View
Out In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.

1-4-2 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 Pack-
IC (See Fig. S-1-7).
c. Solder all pins of the Flat Pack - IC. Make sure that
none of the pins have solder bridges.
Fig. S-1-1
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
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark. Fig. S-1-6

1-4-3 TD705NOTE
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential difference caused by electro-
static charge during unpacking or repair work.
Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is prop-
erly 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.
Presolder
CBA
Flat Pack-IC
Fig. S-1-7
<Incorrect>
CBA
<Correct>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ

1-5-1 TD900PFS
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 num-
ber (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. (Ser-
vice remote control unit).
Details are as follows.
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 oper-
ated automatically.
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.
Key Adjustment Mode
MENU
Picture adjustment mode: Press the
MENU button to change from BRT
(Bright), *CNT (Contrast), *COL
(Color), *TNT(Tint) and *V-T. Press
CH UP/DOWN key to display Initial
Value. *Marked items are not neces-
sary to adjust normally.
0No need to use.
1No need to use.
2H adjustment mode: See adjustment
instructions page 1-8-2.
3No need to use.
4Auto record mode: Perform recording (15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
5Head switching point adjustment mode: See adjustment instructions
page 1-8-5.
6No need to use.
7
Purity check mode: Shows Red,
Green, Blue or White cyclically on the
screen each time the “7” key is
pressed.
Key Adjustment Mode
8H. Shift adjustment mode: See adjust-
ment instructions page 1-8-3.
9V.size/V. shift adjustment: See adjust-
ment instructions page 1-8-3.
VOL pCut-off Adjustment 1-8-3.
(START SENSOR
)
(END SENSOR)
(REC-SAFETY SW)
MAIN CBA
Q201
SW1211
Q202

1-6-1 TD900IB
6.OPEN/CLOSE Button
Press to insert discs into or remove them from th
e
tray.
7.Disc loading tray
8.DVD Indicator
Lights on during DVD mode.
9.SELECT Button
Press to change to TV/VCR mode, external inpu
t
mode or DVD mode.
10.TV/VCR Indicator
Lights on during TV/VCR mode.
11. CHANNEL K/LButtons
Press to select memorized channel.
12.Recording Indicator
Flashes during recording. Lights up in the Stand-
by mode for Timer Recording.
13.REC/OTR (RECORD)Button
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
d
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)
16.STOP/EJECT Button
Press to stop the tape motion. Press in the Stop
mode to remove tape from the TV/VCR/DVD.
17.Remote sensor window
18.HEADPHONE Jack
To connect headphone (not supplied) for persona
l
listening.
19.VIDEO input Jack
Connect to the video output jack of a video
camera or VCR.
20.AUDIO L/R input Jacks
Connect to the audio output jacks of a video
camera or VCR.
21.Cassette compartment
22.PICTURE Button
Press to adjust the picture.
- REMOTE CONTROL - [Fig. 2]
1.POWER Button
Press to turn the power on and off.
2.VOLUME X/YButtons
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 play-
back speed.
4.PLAY Button
Starts playback of the disc or tape contents.
5.STOP Button
Front panel
Press to stop the disc motion.
Remote Control
DVD mode
Press to stop the disc motion.
TV/VCR mode
Press to stop the tape motion.
-
TV/DVD/VCR FRONT PANEL - [Fig.1]
VIDEO HEADPHONE
RL AUDIO
SELECT CHANNEL REC/OTR
TV/VCRDVD EJECT
F.FWDPLAYREWPOWER STOP
STOP OPEN/CLOSE
VOLUME SKIPPLAYSKIP
SEARCH
12 4 5 6 1071514983 3 41112 13 212019181716
DVD buttons TV/VCR buttons
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
(TV/VCR
/DVD/CD)
OPERATING CONTROLS AND FUNCTIONS

1-6-2 TD900IB
2
3.Number Buttons
TV Mode:
Press two digits to directly access the desired
channel.
Remember to press a "0" before a single digit
channel.
+100 Button–
Press to select cable channels which are equal or
greater than number 100.
DVD Mode:
Press to enter the desired number.
+10 Button–
Press to enter the desired numbers which are
equal or greater than number 10.
2
4.PAUSE Button
Pauses the current disc or tape operation.
2
5.SPEED Button
Press to choose the desired recording speed:
SP/SLP.
2
6.C.RESET Button
Press to reset counter to 0:00:00.
Press to cancel a setting of timer program.
2
7.DISPLAY Button
TV/VCR Mode:
Display the counter or the current channel number
and current time on the TV screen.
DVD Mode:
Displays the current status on the TV screen for
checking purposes.
2
8.SETUP Button
Press to enter or exit the TV menu or DVD setup
mode.
2
9.TITLE Button
Displays the title menu.
3
0.CLEAR Button
Resets a setting.
3
1.MODE Button
Activates program playback or random playback
mode.
3
2.SEARCH MODE Button
Press to locate a desired point.
3
3.AUDIO Button
Press to select a desired audio language or sound
mode.
3
4.SUBTITLE Button
Press to select a desired subtitle language.
35.REPEAT Button
Repeats playback of the current disc, title, chapt
er
or track.
36.ANGLE Button (DVD mode)
Press to change the camera angle to see the
sequence being played back from a different
angle.
37.A-B REPEAT Button
Repeats playback of a selected section.
38.RETURN Button
Returns to the previous operation in the DVD
setup mode.
39.ENTER Button
Press to accept a setting.
40.Arrow Buttons
TV/VCR Mode:
Press to select a setting mode from the menu on
the TV screen.
Press to select or adjust from a particular menu.
DVD Mode:
Use when making settings while watching the
display on a TV screen.
41.DISC MENU Button
Displays the menus in the DVD.
42.ZOOM Button
Enlarges part of a DVD-reproduced image.
43.MUTE Button
Mutes the sound. Press it again to resume sound
.
44.SLEEP Button
Sets the Sleep Timer.
45.SELECT Button
Press to switch TV/VCR and DVD mode. You c
an
see the mode (TV/VCR or DVD) on the front
panel indicator.
46.ANT. in Jack
Connect to an antenna, cable system, or satellite
system.
47.Power cord
Connect to a standard AC outlet (120V/60Hz).
NOTE: Remove the power cord from the hook to
avoid breaking a wire before you connec
t
to a standard AC outlet.
48.COAXIAL digital audio out Jack
Connect to the digital input of an external
amplifier or decoder for DVD audio only.
49.AUDIO L/R output Jack
Connect to the analog audio input of an external
amplifier or decoder.
-
TV/DVD/VCR REAR PANEL - [Fig.3]
4746 48 49

1-7-1 TD900DC
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.
2. Disassembly Method
(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
Desolder
2(S-2) = two Screw (S-2)
(5): Refer to the following "Reference Notes in the
Table."
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.
ID/
LOC.
No. PART
REMOVAL
Fig.
No.
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
Note
[1] Rear
Cabinet 1 4(S-1), 1(S-2), 1(S-3) -
[2] H.V. CBA (With
Holder)
2, 3,
5
Anode Cap, CN501,
CRT CBA, CN571,
CN1301, CN2602 1
[3] Tray Chassis
Unit 2, 5 CN1802, CN2801,
CN2601 -
[4] CRT 3 4(S-4) -
[5] Shield Box 2 5(S-5) -
[6] DVD Mechanism
Unit 2, 5 CN2401, CN2402,
3(S-6) -
[1] Rear Cabinet
[2] H.V. CBA (with Holder)
[3] Tray Chassis Unit
[5] Shield Box
[4] CRT
[6] DVD Mechanism Unit
[10] Deck Assembly
[11] Main CBA
[7] DVD Main
CBA Unit
[9] Function CBA
[8] Power Supply/AV CBA
[7] DVD Main
CBA Unit 42(S-7), CN201, CN301
2-1
2-2
3
[8] Power Supply/
AV CBA 2, 5 4(S-8), CN2803,
CN2804 -
[9] Function
CBA 2, 5 3(S-9), CN2805 -
[10] Deck
Assembly 2, 5
7(S-10), 1(S-11),
1(S-12),
CL1201, CL1401,
CL1402, CL1403
4
[11] Main CBA 2 4(S-13) -
↓
(1) ↓ (2) ↓ (3) ↓ (4) ↓ (5)
ID/
LOC.
No. PART
REMOVAL
Fig.
No.
REMOVE/
*UNHOOK/UNLOCK/
RELEASE/UNPLUG/
DESOLDER
Note

1-7-2 TD900DC
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. 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. 4)
2-2. Disconnect connector (CN301). Remove two
screws (S-7) and lift the DVD Main CBA Unit.
(Fig. 4)
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. 4)
4. Remove screws 7(S-10), 1(S-11), and 1(S-12).
Then, desolder connectors (CL1201, C1401,
CL1402, CL1403) and lift up the Deck Assembly.
S-1
S-2
S-3
S-1
S-1
S-1
[1] REAR CABINET
Fig. 1