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.
The LCD panel is manufactured to provide many years of useful life.
Occasionally a few non active pixels may appear as a tiny spec of color.
This is not to be considered a defect in the LCD screen.
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
ANT. Input ---------------------- 75 ohm Unbal., F type
Reference Level--------------- 20 Vp-p (LCD Green Cathode)
Test Input Signal -------------- 400 Hz 30% modulation
DescriptionConditionUnitNominalLimit
1. Intermediate Freq.
2. Color Killer Sens.CH-4dBµV20 25
3. AFT Pull In Range (10 mV input)---MHz±2.1±0.7
Picture
Sound
MHz
MHz
45.75
41.25
---
---
< LCD PANEL >
DescriptionConditionUnitNominalLimit
1. Number of Pixels
2. Brightnesscd/m
3. Response Time---msec16---
4. Support Color----16 mil. (8 bit)---
5. Viewing Angle
Horizontal
Vert ical
Horizontal
Vert ical
pixels
pixels
°
°
640 × 3
480
2
450---
-85 to 85
-80 to 85
---
---
---
---
< VIDEO >
DescriptionConditionUnitNominalLimit
1. Over Scan
Horizontal
Vert ical
%
%
5
5
---
---
2. Color Temperature
3. Resolution
--x
y
Horizontal
Vert ical
°K
line
line
9200
0.286
0.294
400
350
--±0.3
±0.3
---
---
< AUDIO >
All items are measured across 8 Ω load at speaker output terminal with L.P.F.
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.
3dB: Lch
-
3dB: Rch
Hz
Hz
50 to 12 k
50 to 12 k
---
---
1-1L3250SP
<DVD Section>
ITEMCONDITIONSUNITNOMINALLIMIT
1. Coaxial Digital Out75 ohm loadmVpp500± 100
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : AC120 V 60 Hz
3. Ambient temperature: +25
°C
1-2L3250SP
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 (within the DVD Mechanism)
Laser Beam Radiation
Laser Pickup
Turntable
WHEN OPEN. DO NOT
Location: Top of DVD mechanism.
CAUTION
LASER RADIATION
STARE INTO BEAM.
2-1E6NLSP
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 LCD TV
Circuit
1. Before returning an instrument to the
customer, always make a safety check of the
entire instrument, including, but not limited to, the
following items:
a. Be sure that no built-in protective devices are
defective 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 operate 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 Liquid
Crystal Panel 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
instrument completely reassembled, plug the
AC line cord directly into a 120 V AC outlet. (Do
not use an isolation transformer during this
test.) Use a leakage 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
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.
2. Read and comply with all caution and safety-
related notes on or inside the receiver cabinet, on
the receiver chassis, or on the Liquid Crystal
Panel.
CURRENT
TESTER
+
EARTH
GROUND
_
3-1LTVN_ISP
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. Hot Chassis Warning a. Some TV receiver chassis are electrically
connected directly to one conductor of the AC
power cord and maybe 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.
5. 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.
6. 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.
7. 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 they comply 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.
3-2LTVN_ISP
Precautions during Servicing
A. Parts identified by the # symbol are critical for
safety.
Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise
blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers
4) Insulators for transistors.
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before
soldering.
F.Observe that the wires do not contact heat
producing parts (heat sinks, oxide metal film
resistors, fusible resistors, etc.)
G. Check that replaced wires do not contact sharp
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. Use care 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 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 internal
connectors, first, disconnect the AC plug from the
AC supply outlet.
M. When installing parts or assembling the cabinet
parts, be sure to use the proper screws and
tighten certainly.
3-3LTVN_ISP
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and
wires have been returned to 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
AC Line VoltageRegion
110 to 130 V
Note: This table is unofficial and for reference only. Be
sure to confirm the precise values.
U.S.A. 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.) 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 both terminals of load Z.
See Fig. 2 and following table.
dd'
Fig. 1
Exposed Accessible Part
Z
AC Voltmeter
(High Impedance)
Earth Ground
B
Power Cord Plug Prongs
Fig. 2
Table 2: Leakage current ratings for selected areas
AC Line VoltageRegionLoad ZLeakage 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.
U.S.A. or
Canada
0.15 µF CAP. & 1.5 kΩ
RES. Connected in parallel
3-4LTVN_ISP
i ≤ 0.5 mA 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 fifth pin are
indicated as shown.
Pin 1
3. The 1st pin of every male connector is indicated as
shown.
Input
In
Bottom View
5
10
Pb (Lead) Free Solder
Pb free mark will be found on PCBs which use Pb
free solder. (Refer to figure.) For PCBs with Pb free
mark, be sure to use Pb free solder. For PCBs
without Pb free mark, use standard solder.
Pb free mark
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)
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
* Be careful to avoid a short circuit.
Fig. S-1-1
2. Remove the flat pack-IC with tweezers while
applying the hot air.
3. Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
CAUTION:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. Do not supply hot air to the chip parts around the
flat pack-IC for over 6 seconds because damage
to the chip parts may occur. Put masking tape
4-1TVDVDN_SN
around the flat pack-IC to protect other parts from
damage. (Fig. S-1-2)
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
CBA
Machine
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
Soldering Iron
Fig. S-1-3
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
2. Lift each lead of the flat pack-IC upward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
Sharp
Pin
Fine Tip
Soldering Iron
3. Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
Fig. S-1-4
4-2TVDVDN_SN
With Iron Wire:
1. Using desoldering braid, remove the solder from
all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)
2. Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
3. While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA
contact pads as shown in Fig. S-1-5.
4. Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
5. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
Note: When using a soldering iron, care must be
taken to ensure that the flat pack-IC is not
being held by glue. When the flat pack-IC is
removed from the CBA, handle it gently
because it may be damaged if force is applied.
Hot Air Blower
2. Installation
1. Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA
so you can install a replacement flat pack-IC more
easily.
2. The “●” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
presolder the four corners of the flat pack-IC. (See
Fig. S-1-8.)
3. Solder all pins of the flat pack-IC. Be sure that
none of the pins have solder bridges.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
To Solid
Mounting Point
CBA
Tweezers
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Flat Pack-IC
or
Presolder
Flat Pack-IC
CBA
Fig. S-1-8
Fig. S-1-6
4-3TVDVDN_SN
Instructions for Handling Semiconductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by
electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1 MΩ) that is
properly grounded to remove any static electricity that
may be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate
with proper grounding (1 MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on
clothing will not escape through the body grounding
band, be careful to avoid contacting semi-conductors
with your clothing.
<Incorrect>
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
4-4TVDVDN_SN
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.
[14] Speaker(R)
[2] Jack Holder
[12] Function
CBA
[1] Rear Cabinet
[3] DVD Main
CBA Unit
[4] Loader
PCB Holder
[5] DVD
Mechanism
[6] DVD
Holder(R)
[8] Main CBA
[13] IR Sensor
CBA
[15] Speaker(L)
[9] Inverter
CBA
[7] DVD
Holder(L)
Step/
Loc.
Part
No.
[8]Main CBA
Inverter
[9]
CBA
Tilt Stand
[10]
Holder
LCD Main
CBA &
[11]
Liquid
Crystal
Panel Unit
Function
[12]
CBA
IR Sensor
[13]
CBA
Removal
Remove/*Unhook/
Fig.
No.
Unlock/Release/
Unplug/Unclamp/
Note
Desolder
9(S-11), *CN101A,
*CN102A, *CN103A,
D3
*CN801, *CN802,
D5
*CN1651, *CN411
D3D55(S-12), *CN450,
*CN460, *CN490
D3 2(S-13), (S-14)---
D4D513(S-15), *CLN104,
*CLN105, *CN1751
D4
5(S-16)---
D5
D4
(S-17)---
D5
---
---
---
[11] LCD Main CBA &
Liquid Crystal Panel Unit
[16] Front Cabinet
[10] Tilt Stand
Holder
2. Disassembly Method
Removal
Step/
Loc.
Part
No.
Rear
[1]
Cabinet
[2]Jack Holder D2 3(S-4), (S-5)---
DVD Main
[3]
CBA UnitD2D5
Loader
[4]
PCB Holder
DVD
[5]
Mechanism
DVD
[6]
Holder(R)
Remove/*Unhook/
Fig.
No.
Unlock/Release/
Unplug/Unclamp/
Desolder
11(S-1), (S-2), 4(S-3),
D1
Tilt Stand Assembly
3(S-6), *CN201,
*CN301, *CN401,
*CN601, *CN801
D2 (S-7A), 2(S-7B)---
D2 4(S-8)2
D2 2(S-9)---
Note
---
1
[14] Speaker(R)
[15] Speaker(L)
Front
[16]
Cabinet
↓
(1)
↓
(2)
D4
3(S-18)---
D5
D4
3(S-19)---
D5
D4 ------------------
↓
(3)
↓
(4)
↓
(5)
Note:
(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 parts to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
P = Spring, L = Locking Tab, S = Screw,
CN = Connector
* = Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
(5) Refer to the following "Reference Notes in the
Table."
[7]
DVD
Holder(L)
D2 2(S-10)---
5-1L3250DC
Reference Notes
1. CAUTION 1: Electrostatic breakdown of the laser
diode in the optical system block may occur as a
potential difference caused by electrostatic charge
accumulated on cloth, human body etc., during
unpacking or repair work.
To avoid damage of pickup follow next procedures.
1) Short the three short lands of FPC cable with
solder before removing the FFC cable (CN201)
from it. If you disconnect the FFC cable
(CN201), the laser diode of pickup will be
destroyed. (Fig. D2)
2) Disconnect Connectors (CN301), (CN401),
(CN601) and (CN801). Remove three Screws
(S-6) and remove the DVD Main CBA Unit.
(Fig. D2)
2. CAUTION 2: When reassembling, confirm the
FFC cable (CN201) is connected completely. Then
remove the solder from the three short lands of
FPC cable. (Fig. D2)
3. How to eject a disc in emergency
Press and hold [EJECT] on the unit for more than
5 seconds.
(S-1)
(S-2)
[1] Rear Cabinet
Tilt Stand Assembly
(S-1)
(S-1)
(S-1)
(S-3)
(S-1)
Fig. D1
5-2L3250DC
[6] DVD Holder(R)
[2] Jack Holder
(S-4)
(S-5)
Short the three short lands by soldering.
(Either of two places.)
Connector
(S-4)
[7] DVD Holder(L)
View for A
(S-10)
A
(S-10)
(S-9)
(S-9)
[4] Loader
PCB Holder
[5] DVD Mechanism
(S-8)
(S-7B)
(S-7A)
(S-6)
[3] DVD Main
CBA Unit
Fig. D2
5-3L3250DC
(S-13)
(S-12)
(S-11)
(S-11)
(S-12)
[9] Inverter CBA
[10] Tilt Stand
Holder
(S-14)
[8] Main CBA
(S-11)
(S-11)
Fig. D3
5-4L3250DC
[16] Front Cabinet
[14] Speaker(R)
(S-18)
[15] Speaker(L)
[12] Function CBA
(S-16)
(S-16)
(S-17)
[13] IR Sensor CBA
[11] LCD Main CBA &
(S-19)
Liquid Crystal Panel Unit
(S-15)
(S-15)
(S-15)
(S-15)
(S-15)
(S-15)
Fig. D4
5-5L3250DC
TV Cable Wiring Diagram
To DVD Mechanism
LCD
Main CBA
To Liquid
Crystal
Panel
CN104
Function CBA
CLN104
IR Sensor CBA
CN201
CN601
CN301
CN801
CN401
DVD Main
CBA Unit
CN113
CN1701
CN801
CN103A
CN311
CN1751
CN1761
CN103B
CN101ACN102A
CN1651
CN312
CN102B
Main CBA
CN105
CN111
CN112
CN101B
CN411
CN802
CLN105
CN460
Inverter CBA
CLN411
CN490CN450
To Speaker
To Liquid
To Speaker
Crystal
Panel
Fig. D5
5-6L3250DC
3. How to Eject Manually
1. Remove the Rear Cabinet.
2. To remove the Loader PCB Holder with the DVD
Main CBA Unit, remove three screws (S-7) in Fig.
D2. Do not disconnect connectors.
3. To remove the Chassis Cover, remove 4 screws A
as shown in Fig. D6.
4. Remove a disc.
Chassis Cover
Disc
Screws A
Fig. D6
Reassembly note of the Chassis Cover:
1. Insert the pin A on the Chassis Cover into the hole
A on the Main Chassis as shown in Fig. D7.
Chassis Cover
Pin A
Hole A
Main Chassis
2. Tighten 4 screws A as shown in Fig. D6.
Fig. D7
5-7L3250DC
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. DC Voltmeter
2. NTSC Pattern Generator (Color Bar W/White
Window, Red Color, Dot Pattern, Gray Scale,
Monoscope, Multi-Burst)
3. Remote control unit: Part No. NE240UD
4. Color Analyzer
How to make Service remote
control unit:
1. Prepare normal remote control unit (Part No.
NE240UD). Remove 3 screws from the back lid
(Fig. 1-1).
Screws
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. Press [DISC MENU] button on the service remote
control unit. Version of micro computer will be
displayed on the LCD or display. (Ex: A95FP-0.23)
1. Initial Setting
General: Enter the Service mode. (See page 6-1.)
Set the each initial data as shown on table 1 below.
Table 1: Initial Data
Button
[Use the attached
Item
BRT
CNT140
CLR-R64
CLR-B64
remote control unit.
(not service remote
control unit)]
[MENU] → [1]
Data
Value
120
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.
4. Press [CH. o / p] buttons on the remote control
unit so that flash stops.
1. Enter the Service mode. (See page 6-1.)
2. Press [2] button on the remote control unit.
The following screen appears.
VCOM
110
6-2L3250EA
The following adjustment normally are not
attempted in the field. Only when replacing the
LCD Panel then adjust as a preparation.
3. White Balance Adjustment
Purpose: To mix red, green and blue beams correctly
for pure white.
Symptom of Misadjustment: White becomes bluish
or reddish.
Test Point Adj. PointModeInput
[RF/VIDEO1]
Screen
VOL. p
buttons
M. EQ.Spec.
C/D1
[VIDEO2]
C/D2
White Purity
(APL 80%)
5. [RF/VIDEO1]
When “x” value and “y” value are not within
specification, adjust “DB (C/D1)” or “DR (C/D1)”.
Refer to “1. Initial Setting.”
Note: “DB(C/D1)” or “DR(C/D1)” must be adjusted
within ±0.01.
[VIDEO2]
When “x” value and “y” value are not within
specification, adjust “DB(C/D2)” or “DR(C/D2)”.
Refer to “1. Initial Setting.”
Note: “C-DB(C/D2)” or “C-DR(C/D2)” must be
adjusted within ±0.01.
6. Turn the power off and on again. (Main power
button on the TV unit.)
Pattern Generator,
Color analyzer
x: 0.256 to 0.316,
y: 0.264 to 0.324
Figure
It carries out in a darkroom.
Perpendicularity
L = 3 cm
INPUT: WHITE 80%
Note: Use the remote control unit.
1. Operate the unit for more than 20 minutes.
2. Input the White Purity (APL 80%).
3. Set the color analyzer to the CHROMA mode and
bring the optical receptor to the center on the
LCD-Panel surface after zero point calibration as
shown above.
Note: The optical receptor must be set
perpendicularly to the LCD Panel surface.
4. [RF/VIDEO1]
Enter the Service mode. Press “VOL p” button on
the remote control unit and select “C/D1-” mode.
[VIDEO2]
Enter the Service mode. Press “VOL p” button on
the remote control unit and select “C/D2-” mode.
Color Analyzer
6-3L3250EA
HOW TO INITIALIZE THE LCD TV/DVD
To put the program back at the factory-default, initialize the LCD TV/DVD as the following procedure.
< DVD Section >
1. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
Version
Region
: *.**
: *
EXIT: SELECTEEPROM CLEAR : CLEAR
Fig. g
"
" differ depending on the models.
*******
: *.**
: *
2. Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
MODEL : *******
< LCD TV Section >
1. Turn the power on. (Use main power on the TV
unit.)
2. To enter the service mode, press [DISC MENU]
button on the service remote control unit.
- To cancel the service mode, press [POWER]
button on the remote control.
3. To initialize the LCD television, press [DISPLAY]
button on the remote control unit.
4. Confirm "FF" indication on the upper right of the
screen.
5. Unplug the AC cord.
EEPROM CLEAR : OK
EXIT: SELECTEEPROM CLEAR : CLEAR
Fig. h
When “OK” appears on the screen, the factory
default will be set.
3. To exit this mode, press [CH. o / p] or [SELECT]
button to go to TV mode, or press [POWER] button
to turn the power off.
7-1L3150INT
FIRMWARE RENEWAL MODE
1. Turn the power on and press [EJECT] button on the
remote control unit to put the LCD TV/DVD into
DVD mode. Then remove the disc.
2. To put the LCD TV/DVD into F/W version up mode,
press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order.
Fig. a appears on the screen.
"
" differ depending on the models.
*******
F/W Version Up ModeModel No : *******
Please insert a DISC
for F/W Version Up.
VERSION : *.**
EXIT: SELECT
Fig. a Version Up Mode Screen
3. Insert the disc for version up into the disc slot.
4. The LCD TV/DVD enters the F/W version up mode
automatically. Fig. c appears on the screen. If you
enter the F/W for different models, “Disc Error” will
appear on the screen, then the disc will be ejected
automatically.
"
" differ depending on the models.
*******
5. After programming is finished, the disc will be
ejected automatically. Fig. e appears on the screen
and the checksum will be shown in (*2).
"
" differ depending on the models.
*******
(*2)
F/W Version Up Mode
VERSION : ************.ab6
Completed
SUM : 7ABC
Model No : *******
VERSION : *.**
Fig. e Completed Program Mode Screen
At this time, no button is available.
6. Remove the disc.
7. Press [CH. o / p] button on the unit to go to TV
mode, or press [POWER] button on the unit to turn
the power off.
8. Press [EJECT] button on the remote control unit to
put the LCD TV/DVD into DVD mode again.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.
"
" differ depending on the models.
*******
(*1)
F/W Version Up ModeModel No : *******
VERSION : ************.ab6
Reading...
VERSION : *.**
Fig. c Programming Mode Screen
The appearance shown in (*1) of Fig. c is
described as follows:
AppearanceNo.State
Reading...Sending files into the memory
1
Erasing...Erasing previous version data
2
Programming...
3Writing new version data
MODEL : *******
Version
Region
: *.**
: *
EXIT: SELECTEEPROM CLEAR : CLEAR
Fig. g
10.Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: SELECTEEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. h
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
11.To exit this mode, press [CH. o / p] or [SELECT]
button to go to TV mode, or press [POWER] button
to turn the power off.
8-1L3150FW
BLOCK DIAGRAMS < LCD TV SECTION >
System Control Block Diagram
KEY SWITCH
KEY SWITCH
SENSOR
REMOTE
RCV102
FUNCTION CBA
CLN114
KEY-IN-122
KEY-IN-211
CN104
CLN105
CN105
IR SENSOR CBA
RCV-IN33
TO
LCD BACKLIGHT
BLOCK DIAGRAM
P-ON-H
BACKLIGHT-SW
BACKLIGHT-ADJ
INVERTER CBA
CLN411
BACKLIGHT-ADJ
BACKLIGHT-SW
P-ON-H1111
99
88
CN411
TO POWER SUPPLY
BLOCK DIAGRAM
P-ON-H
DVD-PWR-CON
CN113 IS USED
FOR ADJUSTMENT
AT FACTORY
TO IF/VIDEO
BLOCK DIAGRAM
FSC
SCL
SDA
S-SW
INPUT-0
AFT-IN
INPUT-1
P-ON-H
VOLUME
TO AUDIO
BLOCK DIAGRAM
SCL
DVD-MUTE
AUDIO-MUTE
SDA
SDA2
SCL1
BUS-OPEN
4
CN113 (NO CONNECTION)
IC333 (TV MICRO CONTROLLER)
4KEY-IN-2
3
KEY-IN-1
MAIN CBALCD MAIN CBA UNIT
CN102A
FSC123
BACKLIGHT-SW
BACKLIGHT-ADJ
P-ON-H168
INPUT-01212
INPUT-11113
P-ON-H2(NU)
DVD-PWR-CON
195
213
1410
186
AL+3.3V(D)
5
RESET
IC151
4
21
11
RESET
RCV-IN
DVD-MAIN-POWER
P-25V-ON
26
12
X161
27MHz
42
43
XIN
XOUT
DVD-CS
DVD-SIN
DVD-SCLK
24
2737333639
25
REMOTE-OUT
DVD-IRCONT
DISC-OUT
CN102B
221817
80
TUNERCLK
BACKLIGHT-SW
DISC-IN
BACKLIGHT-ADJ
16
P-ON-H
P-ON-H2
3140193241
INPUT-0
INPUT-1
VOLUME159
S-SW717
SCL618
SDA519
AFT-IN1014
5AFT-IN
20
SCL
SDA
S-SW
VOLUME
AUDIO-MUTE
DVD-MUTE
1311
231
34
23
35
DVD-MUTE
BUS-OPEN
AUDIO-MUTE
Q301
Q131
BUFFER
AL+3.3V(D)
3.3V<-->5V
CONVERTER
BUS-OPEN519
CN103BCN103A
TO POWER
DVD-MAIN-POWER
SUPPLY
P-25V-ON
BLOCK
DIAGRAM
FP-DIN
FP-CLK
SDATA
REMOTE
TO
SYSTEM CONTROL
TREDCONTV
DISC-OUT
DISC-IN
/SERVO
BLOCK DIAGRAM
<DVD SECTION>
DVD-PWR-CON
9-1
IC171
(MEMORY)
7
WP
CN112(NO CONNECTION)
6
5
SCL
SDA
SDA2
SCL1
BUS-OPEN 4
NO PART
MOUNTED
FOR CN112
L3250BLS
IF/Video Block Diagram
TO
CVBS11
CN103A
LCD BLOCK
DIAGRAM
CN103B
S-VIDEO-C7
S-VIDEO-Y9
WF8
TO
VIDEO-Y5
CN103A
LCD BLOCK
DIAGRAM
CN103B
VIDEO-Pb/Cb
VIDEO-Pr/Cr
3
1
AUDIO SIGNAL
MAIN CBA
VIDEO SIGNAL
TO AUDIO BLOCK
DIAGRAM
SIF
8
SIF
AMP
7
4.5MHz
FILTER
CF31
4
SIF
TRAP
IF AGC DET
WF7
Q703
3
BUFFER
BUFFER
4
5
WF9
Q702
13
BUFFER
14
12
Q701
1
BUFFER
15
2
SW
TO AUDIO
BLOCK DIAGRAM
INPUT-0(INV)
INPUT-1(INV)
11
10
CONTROL
9
Q707
Q708
INPUT-0
INPUT-1
TO SYSTEM CONTROL
BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK DIAGRAM
AFT-IN
13
18
IC781 (INPUT SELECT)
Q32
EQ
AMP
1
2
DEFEAT
VIDEO
VIF
IC31 (IF SIGNAL PROCESS)
16
SAW
FILTER
SF11
IF
TU1
(TUNER UNIT)
DET
AMP
17
VCO
RF
AGC
14
5
173
AGC
XTAL-IN
2
SCL
AFT
DVD-Y
TP1805
AMP
11
FSC
SCL
SDA
S-SW
SDA
JK703
<LCD TV SECTION>
VIDEO1
TO
SYSTEM CONTROL
BLOCK DIAGRAM
CY
-IN
JK701
S-VIDEO
IN
WF13
CN1701
CN601
TO DIGITAL
9-2
3
1
9 DVD-C
8 DVD-Y
VIDEO-C
VIDEO-Y(I/P)
SIGANL
PROCESS
BLOCK
DIAGRAM
TP1806
WF14
CHROMA
DVD MAIN CBA UNIT
Q704
WF10
BUFFER
Q705
JK706
VIDEO-YINJK707
WF11
BUFFER
Q706
VIDEO-Pb/CbINJK708
WF12
BUFFER
VIDEO-Pr/Cr
IN
L3250BLIF
Audio Block Diagram
TO
DIGITAL
SIGNAL
PROCESS
BLOCK
SPDIF
PCM-BCK
PCM-DATA
PCM-LRCLK
768
16
PORT
AUDIO
SERIAL
ZERO DETECT
CONTROLLER
DIGITAL FILTER /FUNCTION
DIAGRAM
TO
SYSTEM
CONTROL
DATA(AUDIO) SIGNAL
PCM-SCLK
AUDIO-MUTE
5
AUDIO SIGNAL
(AUDIO DAC)
IC601
/SERVO
BLOCK
DIAGRAM
<DVD
SECTION>
ADAC-ML
ADAC-MD
ADAC-MC
432
PORT
SERIAL
CONTROL
MANAGER
SYSTEM CLOCK
4X/8X OVERSAMPLING
15
L-CH
R-CH
LPF+AMP
DAC
ENHANCED
MULTI-LEVEL
DELTA-SIGMA
14
LPF+AMP
DAC
MODULATOR
DVD MAIN CBA UNIT
CN601CN1701
WF15
WF16
14
13
DVD-MUTE
DVD-AUDIO(L)
7
6
15
18
DVD-AUDIO(R)
SPDIF
8
11
BUFFER
WF17
JK1701
Q1701
TP1802
DIGITAL
AUDIO OUT
FR
CLN802
CN802
(COAXIAL)
SP802
SPEAKER
L-CH
GND 2
SP-L 1
11
AMP
VOLUME
JK801
HEADPHONE
JACK
14
AMP
WF6
SP801
SPEAKER
R-CH
CLN801
GND 2
SP-R 1
CN801
TO SYSTEM
CONTROL BLOCK
< LCD TV SECTION>
TO IF/VIDEO
BLOCK DIAGRAM
VOLUME
P-ON-H
AUDIO-MUTE
Q803
7
Q802
SCL
SDA
DVD-MUTE
INPUT-0(INV)
INPUT-1(INV)
IC851 (MTS/SAP AUDIO SIGNAL PROCESS)
SIF/BB
SW
INPUT
VCA
SIF
DEMOD
21
STEREO
FILTER
SAP
FILTER
OFFSET
CANCEL
SAP
DEMOD
WIDE BAND
FILTER
dBX
DE-EMPH
SPECTRAL
FILTER
L+R
FILTER
L-R
FILTER
SAP OUT
FILTER
WIDE BAND
RMS DET
SPECTRAL
EXPAND
SPECTRAL
RMS DET
75uS
DE-EMPH
(L-R)/SAP SW
OFFSET
CANCEL
WIDE BAND
EXPAND
L-CH
30
I2C
DECORDER
OFFSET
CANCEL
MATRIX
AGC
R-CH
29
FL
TP1801
2
MUTE
/STANDBY
CONTROL
3
(R-CH)
TUNER
AUDIO1
4
(R-CH)
1
3
SW CTL
AUDIO2
5
2
(L-CH)
IC801 (AUDIO AMP)
6
8
27
24
13
TUNER
AUDIO2
AUDIO1
IC852 (INPUT SELECT)
111514
(L-CH)
12
SWITCHING
Q804
REG+5V
9 10
SIF
TO
IF/VIDEO BLOCK
DIAGRAM
MAIN CBA
AUDIO1(L)
-IN
JK704
JK705
AUDIO1(R)
-IN
JK709
AUDIO2(L)
-IN
JK710
AUDIO2(R)
-IN
9-3
L3250BLA
LCD Block Diagram
LCD MODULE
OR(0)34
OR(2)32
OR(3)31
OR(1)33
OR(4)30
OR(5)29
OG(0)27
OG(1)26
OG(2)25
OG(3)24
OG(4)23
OG(5)22
OB(0)20
OB(1)19
OB(2)18
OB(3)17
OB(4)16
OB(5)15
ER(0)6
ER(1)5
ER(2)4
ER(3)3
ER(4)2
ER(5)1
EG(0)50
EG(1)49
EG(2)48
EG(3)47
EG(4)46
EG(5)45
EB(0)43
EB(1)42
EB(2)41
EB(3)40
EB(4)39
EB(5)38
OFFEV12
STV113
CLKV14
HMS1-E7
HMS1-013
STH142
POL43
CLKH10
LP44
VIDEO SIGNAL
LCD MAIN CBA UNIT
CN311
170
169
166
R(ODD)
R
165
164
163
162
161
157
156
G(ODD)
G
155
154
153
152
148
B(ODD)
B
147
146
145
LCD RGB
138
137
SIGNAL
PROCESS
136
135
130
129
R(EVEN)
Y
CN312
128
127
126
125
G(EVEN)
Pb/Cb
118
117
116
115
114
113
Pr/CrB(EVEN)
108
107
101
105
STV1
OFFEV
R365
106
CLKV
CN311
WF1
WF2
R392
144
143
CLKH1
ODDINV
R202
R394
139
172
STH-1
EVENINV
173
POL
WF4
R201
WF3
WF5
174
LP
IC333 (LCD DRIVE / SIGNAL PROCESS)
A/D
R
CVBS
68
CN103B
CVBS 13
TO
IF/VIDEO
S-VIDEO-Y 15
S-VIDEO-C 17
BLOCK
DIAGRAM
CN103A
A/D
G
VIDEO
SIGNAL
C
49
PROCESS
A/D
B
Y
71
9-4
A/D
74
A/D
52
CN103B
VIDEO-Y 19
TO
IF/VIDEO
A/D
60
21
23
VIDEO-Pr/Cr
VIDEO-Pb/Cb
BLOCK
DIAGRAM
CN103A
L3250BLLCD
Power Supply Block Diagram
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
REG+5V(3)
AL+7V(D)
+5V REG.
IC672
+7V REG.
IC531
TO SYSTEM
VT+33V
TO LCD BACKLIGHT
BLOCK DIAGRAM
AL+21V
AL+12V
+21V
TP402
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
4A/125V
REG+5V(2)
+5V REG.
IC671
Q505
Q509
CONTOROL
BLOCK DIAGRAM
< LCD TV SECTION >
P-ON-H
DVD-PWR-CON
IC533
Q512
Q513
PANEL+3.3V
PANEL+10.8V
PANEL+25V
PANEL-6V
CN101B
PANEL+3.3V
PANEL+10.8V
PANEL+25V73
PANEL-6V82
46
55
CN101A
+5V REG.
Q531
Q510
Q501
Q503
Q502
AL+5V
AL+5V222
CN102ACN102B
TO SYSTEM
CONTROL
P-25V-ON
P-25V-ON213
Q511
BLOCK
DIAGRAM
AL+7V(D)213
CN103ACN103B
AL+3.3V(D)
< LCD TV SECTION >
+3.3V
REG.
DVD-MAIN-POWER
IC191
DVD-MAIN-POWER
186
Q1653
Q1655
AL+1.5V(D)
+1.5V
REG.
IC192
Q1652
AL+3.3V(A)
+3.3V
REG.
IC193
LCD MAIN
CBA UNIT
Q1651
EV+1.2V
CN401
EV+1.2V
22
CN1761
CN1751
EV+1.2V
1414
CN1651
+1.2V REG.
IC1652
DVD-ON+3.3V
EV+3.3V(D)
EV+3.3V(A)
DVD-ON+5V
EV+1.2V
EV+3.3V(D)
EV+3.3V(A)
EV+3.3V(A)
DVD-ON+3.3V
33
EV+1.2V
1313
Q1656
DVD-ON+5V
44
55
66
77
88
EV+3.3V(D)
EV+3.3V(A)
EV+3.3V(A)
DVD-ON+3.3V
DVD-ON+5V
99
88
1212
1111
1010
Q1654
Q1657
EV+9V
SENSOR+3.3V
DVD MAIN CBA UNIT
EV+9V
EV+9V
SENSOR+3.3V
99
1010
2525
EV+9V
EV+9V
SENSOR+3.3V
77
66
11
Q633
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
9
T601
HOTCOLD
HOT CIRCUIT. BE CAREFUL.
4A/125V
AC601
7
BRIDGE
RECTIFIER
D605 - D608
L601
LINE
FILTER
F601
4A/125V
AC CORD
12
16
11
14
6
5
10
13
3
SWITCHING
Q601
15
2
CONTROL
Q603
SWITCHING
1
4
IC601
ERROR
2
3
VOLTAGE DET
9-5
MAIN CBA
L3250BLP
LCD Backlight Block Diagram
BACK
1
CN450
LIGHT
2
OVER VOLTAGE
Q451,452
PROTECTOR
BACK
1
CN490
LIGHT
2
OVER VOLTAGE
PROTECTOR
Q491,492
Q454,455
BACK
LIGHT
LCD MODULEINVERTER CBA
1
2
CN460
7 6981 2
13 14
OVER VOLTAGE
PROTECTOR
IC402
(OP AMP)
OVER VOLTAGE
PROTECTOR
Q461,462
T450
9
3
10
425
RL401
CLN411
Q421,
Q426
9
T490
3
CURRENT
CONTROL
10
425
SWITCH
Q403
7
8
1
6
8
1
IC401 (DC-AC INVERTER CONTROL)
7
6
262723
OUTPUT
LOGIC1
24
OUTPUT
LOGIC2
457
OSC
T460
Q433
LOGIC
9
3
425
CURRENT
CONTROL
SWITCH
Q411
OVER
VOLTAGE
10
+8V
REG.
28
VCC
PROTECT
7
8
1
6
14
PWM2
13
11
12
PWM1
10
9
STANDBY
16
SLOW
START
MODE SW
1
AL+21V22
AL+21V11
CN411
AL+21V
MAIN CBA
TO
POWER
SUPPLY
BLOCK
AL+21V33
P-ON-H
BACKLIGHT-ADJ
BACKLIGHT-SW
DIAGRAM
TO SYSTEM CONTROL
BLOCK DIAGRAM
< LCD TV SECTION >
9-6
Q412
L3250BLLB
BLOCK DIAGRAMS < DVD SECTION >
System Control / Servo Block Diagram
TO
SYSTEM
CONTROL
BLOCK
DIAGRAM
< LCD TV SECTION >
IC101
(MICRO CONTROLLER)
IC462
+3.3V
RESET73
RESET
13
VREF
FOCUS DRIVE
FD-OFST
148
146
25
27
26
-
+
-
+
24
TRACKING
DRIVE
TD-OFST
147
139
-
+
-
+
SDATA
FP-CLK
FP-DIN
DVD-PWR-CON
CN1761
20
19
18
DVD-PWR-CON
19 FP-CLK
18
CN401
TO AUDIO
BLOCK
DIAGRAM
ADAC-ML
ADAC-MD
ADAC-MC
57
56
ADAC-MD
ADAC-MC
SPDL
76
312
645
-
+
-
+
86ADAC-ML
SLD
75
23
-
+
PCM-SCLK
AUDIO-MUTE
88
163
PCM-SCLK
AUDIO-MUTE
IC202
(OP AMP)
59DVD-PWR-CON
60FP-CLK
82
FP-DIN
SP-ROT
SL-ADS
143
140
1
2
3
TRAY-IN
66
7
6
5
REMOTE
TREDCONTV
23 REMOTE2322 SDATA2220 FP-DIN
67
61
SDATA
REMOTE
DISC-IN
DISC-OUT
1
25
21
TREDCONTV
1 DISC-OUT
21 DISC-IN
25
DISC-OUT
78
DISC-IN
81
LCD MAIN CBA UNIT
Q801
RESET
IC461
21
+3.3V
(SERVO DRIVE)
IC301
FOCUS
ACTUATOR
15
FS(+)
FS(-)
DRIVE
16
TS(+)
TS(-)
TRACKING
ACTUATOR
14
DRIVE
13
DVD MAIN CBA UNIT
1 NOTE:
Either IC461 or IC462 is used for DVD MAIN CBA UNIT.
TO DIGITAL SIGNAL
PROCESS BLOCK
DIAGRAM
SPINDLE
MOTOR
DRIVE
12
11
DRIVE CBA
9-7
SLED
MOTOR
17
TRAY-IN
DRIVE
18
CN301
SPINDLE
MOTOR
M
3SP(+)
4SP(-)
5TRAY-IN
6GND
SLED
MOTOR
7SL(-)
M
8SL(+)
+3.3V
Q804
CN801CN5001
SENSOR CBA
Q802
3
2
1
LED-POWER
3 DISC-IN
2 DISC-OUT
1
L3250BLSD
DISC-OUT
DISC-IN
Digital Signal Process Block Diagram
TO
AUDIO
BLOCK
DIAGRAM
TO
/IF VIDEO
BLOCK
DIAGRAM
FLASH
ROM
DATA(AUDIO) SIGNAL
DATA(VIDEO/AUDIO) SIGNALVIDEO SIGNAL
DAT A
RAM
DSP
INST.
ROM
DECODER
STREAM
I/F
DAT A
RAM
I/O
INST.
ROM
PROCESSOR
SPDIF
PCM-BCK
177
170
PCM-DATA
171
AUDIO
I/F
UMAC
PCM-LRCLK
169
SERIAL
GENERAL
I/O
CPU
I/F
READ
MEMORY
INTERRUPT
CONTROLLER
TIMER
VIDEO-Y(I/P)
149
Y(I/P)
D/A
NTSC/PAL
VIDEO
WATCH DOG
TIMER
REMOTE
VIDEO-C
158
C
D/A
ENCODER
I/F
CONTROL
32BIT CPU
BCU
DAT A
INST
DEBUG
RAM
RAM
IC103 (FLASH ROM)
1
23~51
~
9
~
162548
FADR (0-19)
~
293638
FDQ (0-15)
~
45
SDRAM ADDRESS(0-11)
IC101 (MICRO CONTROLLER)
~
217
238
SDRAM ADDRESS(0-11)
~~
222629
IC501,502 (SDRAM)
EXTERNAL
MEMORY
I/F
1
2
35
SDRAM
DECODER
I/F
ECC
SDRAM DATA(0-15)
~~
18
252
SDRAM DATA(0-15)
~
~
134253
256
114
115
DMA
116
DVD/CD
RF
SIGNAL
117
132
CN201
C16
FORMATTER
PROCESS
CIRCUIT
131
134
A17
D18
192~212
CPU
I/F
BCU
WATCH DOG
5
9
GND(LD)
GND(CD-PD)
TIMER
INTERRUPT
TIMER
CONTROLLER
CD/DVD
83
TO SYSTEM
CONTROL/SERVO
BLOCK DIAGRAM
< DVD SECTION >
6
IC201
(SW)
4
1 3
CDDVD
FS
TS
FS(+)
CN201
FS(+) 2
FS(-)
FS(-) 3
TS(+)
TS(+) 1
TS(-)
TS(-) 4
DVD MAIN CBA UNIT
PICK-UP
UNIT
32BIT
CPU
INST.
ROM
DAT A
RAM
126
124
125
AMP
Q251,Q252
Q253,Q254
AMP
CN201
CD-LD 10
DVD-LD 8
PD-MONI 7
123
6
GND(DVD-PD)
133
129
130
F12
B15
E14
CD/DVD 19
DETECTOR
9-8
L3250BLD
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes
Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often
pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts that have these special safety
characteristics are identified in this manual and its supplements; electrical components having such features are
identified by the mark “#” in the schematic diagram and the parts list. Before replacing any of these components,
read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same
safety characteristics as specified in the parts list may create shock, fire, or other hazards.
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the
parts list, and may be slightly different or amended since these drawings were prepared.
2. All resistance values are indicated in ohms (K = 10
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in µF (P = 10
5. All voltages are DC voltages unless otherwise specified.
Note of Capacitors:
ML --- Mylar Cap. PP --- Metallized Film Cap. SC --- Semiconductor Cap. L --- Low Leakage type
Temperature Characteristics of Capacitors are noted with the following:
Tolerance of Capacitors are noted with the following:
Z --- +80~-20%
Note of Resistors:
CEM --- Cement Res. MTL --- Metal Res. F --- Fuse Res.
Capacitors and transistors are represented by the following symbols.
CBA Symbols
(Top View)(Bottom View)
+
Electrolytic Capacitor
(Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
NPN Transistor
E C B
(Top View)
(Top View)
PNP Transistor
E C B
(Top View)
Schematic Diagram Symbols
Digital Transistor
E C B
NPN Digital Transistor
PNP Digital Transistor
E C B
10-1L3150SC
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1. CAUTION:
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME
TYPE_A,_V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not
defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components
in the power supply circuit to fail.
3. Note:
1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the
parts list, and may be slightly different or amended since the drawings were prepared.
2. To maintain original function and reliability of repaired units, use only original replacement parts which are
listed with their part numbers in the parts list section of the service manual.
4. Voltage indications for PLAY and STOP modes on the schematics are as shown
below:
< DVD Section >
Unit: Volts
The same voltage for
both PLAY & STOP modes
231
5.0
5.0
(2.5)
Indicates that the voltage
is not consistent here.
5. How to read converged lines
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to the line number
"1" of the area "D3".
2. "1-B1" means that line number "1" goes to the line number
"1" of the area "B1".
6. Test Point Information
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
PLAY mode
STOP mode
< TV Section >Unit: Volts
Unit: Volts
The same voltage for
both TV & DVD modes
231
5.0
5.0
(2.5)
< 0 >
Indicates that the voltage
is not consistent here.
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
4A/125V
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
Because a hot chassis ground is present in the power
supply circuit, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly,when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
TP1802
FR
TP1803
A-GND
4A/125V
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
TP1801
FL
TP1805
DVD-Y
TP1806
CHROMA
TP1804
GND
TP402
+21V
10-16
BL3150F01011-1
Main CBA Bottom View
Because a hot chassis ground is present in the power
supply circuit, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly,when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
4A/125V
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
WF7
PIN 11 OF
CN103A
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
See Electrical Parts List
for parts with this mark.
L1
CLN802
SP802
L22
B5
L22
LCD Main CBA & Liquid Crystal Panel Unit
L19
L22
B30
L9
B4
L22
CL1651
L21
Main CBA
L21
B7
L21
L22
L22
L21
L21
L23
B10
B22
L4
A14
B28
B27
B32
L14
L23
B3
L21
L21
B25
L23
B21
Inverter CBA
B24
L21
B34
L21
A15
B31
L14
1B1
A16
B21
L2
B21
L2
L3
A4
L2
L2
L17
DVD Main CBA Unit
L7
A9
A10
A8
L2
A6
S5
L2
L6
B33
AC601
B12
15-1L3250CEX
L1
B26
L7
L3
B17
CL1761
CL1701
L21
Packing
S2
Some Ref. Numbers are
not in sequence.
S3
X2
X3
X1
X4
Tape
S8
S4
Tape
S3
Packing Tape
Packing Tape
Packing Tape
S5
FRONT
S1
15-2L3250PEX
MECHANICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a
# have special characteristics important to safety.
Before replacing any of these components, read
carefully the product safety notice in this service
manual. Don't degrade the safety of the product
through improper servicing.
NOTE: Parts that are not assigned part numbers
(---------) are not available.
# have special characteristics important to safety.
Before replacing any of these components, read
carefully the product safety notice in this service
manual. Don't degrade the safety of the product
through improper servicing.
NOTES:
1. Parts that are not assigned part numbers (---------)
are not available.
2. Tolerance of Capacitors and Resistors are noted
with the following symbols.
C.....±0.25%D.....±0.5%F.....±1%
G.....±2%J......±5%K.....±10%
M.....±20%N.....±30%Z.....+80/-20%
DVD MAIN CBA UNIT
Ref. No.DescriptionPart No.
DVD MAIN CBA UNITN7XT0JUP
LCD MAIN CBA & LIQUID CRYSTAL
PANEL UNIT
Ref. No.DescriptionPart No.
LCD MAIN CBA & LIQUID CRYSTAL PANEL
UNIT
1FSA10059
MMA CBA
Ref. No.DescriptionPart No.
MMA CBA
Consists of the following:
MAIN CBA
IR SENSOR CBA
MAIN CBA
Ref. No.DescriptionPart No.
MAIN CBA
Consists of the following:
CAPACITORS
C11ELECTROLYTIC CAP. 47µF/10V MCE1AMASDL470
C12CHIP CERAMIC CAP.(1608) B K 0.01µF/50VCHD1JK30B103
C13CHIP CERAMIC CAP.(1608) B K 0.01µF/50VCHD1JK30B103
C15ELECTROLYTIC CAP. 1µF/50V MCE1JMASDL1R0
C21CHIP CERAMIC CAP.(1608) B K 0.01µF/50VCHD1JK30B103