Funai FL-9.4 Service Manual

LCD TV/DVD

chassis FL9.4

SERVICE MANUAL

Contents

32” 32MD359B/F7 MAGNAVOX
32” 32MD359B/F7 MAGNAVOX
32” LD320SSX SYLVANIA Limited
32” LD320SSX SYLVANIA Limited
37” 37MD359B/F7 MAGNAVOX
37” 37MD359B/F7 MAGNAVOX
37” LD370SSX SYLVANIA Limited
32” 32MD350B/F7 MAGNAVOX
32” LD320SS1 SYLVANIA Limited
37” 37MD350B/F7 MAGNAVOX
37” 37MD350B/F7 MAGNAVOX

(Serial No. : DS1A**********)
(Serial No. : DS2A**********)
(Serial No. : DS1A**********)
(Serial No. : DS2A**********)
(Serial No. : DS2A**********)
(Serial No. : DS3A**********)

(Serial No. : DS1A**********)
(Serial No. : DS2A**********)

© 2010 Funai Electric Co., Ltd.

All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed,
downloaded or stored in any storage medium, in any form or for any purpose without the express prior written
consent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision hereto
is strictly prohibited.

Information in this document is subject to change without notice. Funai reserves the right to change the content
herein without the obligation to notify any person or organization of such changes.

with the design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way
without the express written consent of Funai. All other trademarks used herein remain the exclusive property of
their respective owners. Nothing contained in this manual should be construed as granting, by implication or
otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any
other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights
to the fullest extent of the law.

A94F0UH/F7UH/F1UH/F8UH/G2UH/G4UH/G3UH/A9DF0UH/A9DF1UH/A9DG0UH/A9DG2UH

100721

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.

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.

TABLE OF CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Laser Beam Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Cabinet Disassembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

How to Initialize the LCD TV/DVD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Schematic Diagrams / CBA and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

System Control Timing Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1

Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1

Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-1

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-1

SPECIFICATIONS

< LCD TV Section >

< TUNER / NTSC >

ANT. Input ---------------------- 75 Ω Unbal., F type

Description Condition Unit Nominal Limit

1. AFT Pull-In Range --- MHz ±2.3 ±2.1
TV.ch.4

2. Synchronizing Sens.

CA.ch.31
CA.ch.87

< TUNER / ATSC >

Description Condition Unit Nominal Limit

1. Received Freq. Range (-28dBm) --- kHz --- ±100

ch.4

2. ATSC Dynamic Range (min / max)

ch.10
ch.41

< LCD PANEL >

Description Condition Unit Nominal Limit

1. Native Pixel Resolusion

2. Brightness (w / filter) --- cd/m

3. Viewing Angle

Horizontal

Vert ical

Horizontal

Vert ical

dBµ
dBµ
dBµ

dBm
dBm
dBm

pixels
pixels

°
°

18
18
18

---

---

---

1366

768
320

[32MD359B/F7,

LD320SSX]

310

2

[32MD350B/F7,

LD320SS1]

430

[37MD359B/F7,

LD370SSX]

250

[37MD350B/F7]

-88 to 88

-88 to 88

20
20
23

-76/0

-76/0

-76/+4

---

---

---

---

---

< VIDEO >

Description Condition Unit Nominal Limit

1. Over Scan

2. Color Temperature

3. Resolution (composite video)

< AUDIO >

All items are measured across 8 Ω load at speaker output terminal with L.P.F.

Description Condition Unit Nominal Limit

1. Audio Output 10% Distortion

(ATSC 0 dBfs)

2. Audio Distortion (NTSC) 500mW: Lch/Rch % 0.5/0.5 2.0/2.0

3. Audio Freq. Response (NTSC)

Horizontal

Vert ical

--­x
y

Horizontal

Vert ical

Lch/Rch W 10.0/10.0 9.0/9.0

-

6dB: Lch

-

6dB: Rch

1-1 A9DF1SP

%
%

°K 12000

line
line

Hz
Hz

5
5

0.272

0.278
400

350

70 to 10 k
70 to 10 k

5±5
5±5

--­±3%
±3%

---

---

---

---

<DVD Section>

< DVD >

Description Condition Unit Nominal Limit

1. Horizontal Resolution (TDV-540 TIT.2 CHP.16) --- Line 350 330

2. Audio Distortion (LPCM 48 kHz, W/LPF)
(PTD 1-NOR TIT.1 CHP.1)

3. Audio freq. response (LPCM 48 kHz)
(PTD 1-NOR TIT.1 CHP.5 -- 10)

4. Audio S/N (LPCM 48 kHz, W/LPF, A-WTD)
(PTD 1-NOR TIT.1 CHP.1 -- 2)

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.

L

R

L, 20 Hz

R, 20 Hz

L, 20 kHz

R, 20 kHz

L

R

% 0.03 0.07

dB 0 +4/-5

dB 85 75

1-2 A9DF1SP

LASER BEAM SAFETY PRECAUTIONS

This DVD player uses a pickup that emits a laser beam.

Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.

The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.

CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.

Drive Mechanism
Assembly

Laser Beam Radiation

Laser Pickup

Turntable

Location: Top of LCD module.

2-1 TVDVDN_LBSP

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

_

3-1 LTVN_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

1.0 V 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.

3-2 LTVN_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. When connecting or disconnecting the internal

connectors, first, disconnect the AC plug from the
AC supply outlet.

L. When installing parts or assembling the cabinet

parts, be sure to use the proper screws and
tighten certainly.

3-3 LTVN_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

AC Line Voltage Region

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.

d' d

Fig. 1

Exposed Accessible Part

Z

AC Voltmeter
(High Impedance)

Earth Ground

B

Power Cord Plug Prongs

Table 2: Leakage current ratings for selected areas

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.

U.S.A. or

Canada

0.15 µF CAP. & 1.5 kΩ

RES. Connected in parallel

3-4 LTVN_ISP

i ≤ 0.5 mA rms

Fig. 2

Exposed accessible

parts

STANDARD NOTES FOR SERVICING

Circuit Board Indications

1. The output pin of the 3 pin Regulator ICs is
indicated as shown.

To p Vi ew

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

4-1 TVDVDN_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
Ta pe

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

Fig. S-1-4

3. Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)

4-2 TVDVDN_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 “ I ” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the
pin 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

4-3 TVDVDN_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

4-4 TVDVDN_SN

CABINET DISASSEMBLY INSTRUCTIONS

[32MD359B/F7, LD320SSX, 32MD350B/F7, LD320SS1]

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.

[1] Stand

Assembly

[13] Junction
CBA

[2] Rear Cabinet

[3] DVD Main
CBA Unit

[4] DVD
Mechanism

[5] DVD Holder

[6] Inverter CBA

[7] Jack CBA

[8] Power Supply
CBA

[11] Speaker
Holder (L,R)

[12] Speaker

[14] IR Sensor
CBA

[15] Function
CBA

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Desolder

DVD Main

[3]

CBA UnitD2D5

DVD

[4]

Mechanism

4(S-5), (S-6), *CN201,
*CN301, *CN801,
*CN901, *CN902

D2 ---------------

[5] DVD Holder D2 4(S-7) ---

6(S-8), *CN1001,

[6]

Inverter
CBA

D3

*CN1003, *CN1050,

D5

*CN1100, *CN1150,
*CN1200, *CN1900

[7] Jack CBA

Power

[8]

Supply
CBA

D3

*2(S-9), *CL701B ---

D5

7(S-10), *CN101,

D3

*CN301, *CN302,

D5

*CN303, *CN801,
*CN802

[9] Jack Holder D3 2(S-11) ---

Note

1

2
3
4
5
6

---

---

[9] Jack Holder

[10] Digital Main
CBA Unit

[16] LCD Module
Assembly

[17] Front
Cabinet

2. Disassembly Method

Removal

Step/

Loc.

No.

[1]

[2]

Part

Stand
Assembly

Rear
Cabinet

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Desolder

D1 4(S-1) ---

D1 13(S-2), 2(S-3), 3(S-4) ---

Note

Digital Main

[10]

CBA UnitD3D5

4(S-12), (S-13),
4(S-14), *CN3902,
Shield Box

---

Speaker

[11]

Holder

D4 *Hook ---

(L,R)

[12] Speaker D4 8(S-15) ---

[13]

[14]

[15]

Junction
CBA

IR Sensor
CBA

Function
CBA

D4

Desolder ---

D5
D4

2(S-16), *CL103C ---

D5
D4

3(S-17) ---

D5

LCD

[16]

Module

D4 (S-18) ---

Assembly
Front

[17]

↓

(1)

Cabinet

↓

(2)

D4 --------------- ---

↓

(3)

↓

(4)

(5)

↓

5-1 A94F1DC

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,

H = Hex 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."

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 the Connectors (CN301), and
(CN801). Remove Screw (S-6) and remove the
DVD Main CBA Unit. (Fig. D2)

2. Reassembly Notes of New DVD Mechanism:
a. To remove the Chassis Cover, remove two

screws A as shown in Fig. D2.

b. To avoid damage of the pickup unit (laser

diode), confirm that the three short lands (either
of two places) are shorted out by soldering
between them as shown in View A in Fig. D2.

c. Connect the FFC cables of the new DVD

Mechanism to the three connectors (CN201,
CN301, CN801) on the DVD Main CBA Unit.

d. After confirming that the FFC cables are

securely connected to the three connectors,
remove the solder from the three short lands. If
the solder is not removed, the laser diode will
not light and it will not be possible to read discs.

e. Insert the pin A on the Chassis Cover into the

hole A on the Main Chassis as shown in Fig.
D2. Then tighten two screws A to install the
Chassis Cover.

3. 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)

4. How to eject a disc in emergency
Press and hold [EJECT] on the unit for more than
5 seconds.

5. How to eject manually 1

1) Remove the Rear Cabinet.

2) Rotate the gear in the direction of the arrow as

shown below.

B

View for B

The gear is turned to the direction
of the arrow.

6. How to eject manually 2

1) Remove the Rear Cabinet.

2) To remove the DVD Main CBA Unit, remove a

screw (S-6) in Fig. D2. Do not disconnect
connectors.

3) To remove the Chassis Cover, remove two

screws A as shown in Fig. D2.

4) Remove a disc.

5-2 A94F1DC

(S-4)

(S-2)

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

(S-1)

(S-3)

(S-4)

(S-2)

(S-4)

(S-2)

Fig. D1

5-3 A94F1DC

(S-7)

(S-6)

[3] DVD Main CBA Unit

[4] DVD Mechanism

[5] DVD Holder

Remove two screws A, then short the three short lands by soldering as shown in View for A.

Chassis Cover

Pin A

Either of two places

A

(S-5)

Screws A

A

FPC Cable

View for A

Hole A

Main Chassis

Fig. D2

5-4 A94F1DC

[6] Inverter CBA

(S-8)

(S-14)

[10] Digital Main
CBA Unit

(S-11)

[7] Jack CBA

Shield Box

[9] Jack Holder

(S-9)

(S-12)

(S-13)

(S-12)

(S-10)

(S-10)

(S-10)

(S-8)

[8] Power Supply CBA

Fig. D3

5-5 A94F1DC

[17] Front Cabinet

[16] LCD Module
Assembly

Hook

[13] Junction
CBA

(S-15)

[12] Speaker

[11] Speaker Holder (L)

(S-18)

Hook

[11] Speaker Holder (R)

[14] IR Sensor CBA

(S-16)

(S-15)

[12] Speaker

[15] Function CBA

(S-17)

Fig. D4

5-6 A94F1DC

TV Cable Wiring Diagram

DVD Main
CBA Unit

Jack
CBA

CL701B

CN303

CN302

CN601

CL701A

CN201

CN902

CN901

CN301

CN801

CN401

To DVD Mechanism

Power Supply CBA

CN201

CN602

Inverter CBA

CN1001

CN1900

CN1050

CN1100

CN1150

CN1200

CN301

CN101

Digital Main
CBA Unit

CN4001

CN3702

CN3701

CN3902

To LCD Module
Assembly

CN802

CN801

To Speaker

CN101

IR Sensor CBA

CL103C

AC CORD

Junction
CBA

CL102A

CL101B

CN1003

To LCD Module
Assembly

Function CBA

CL103B

Fig. D5

5-7 A94F1DC

CABINET DISASSEMBLY INSTRUCTIONS

[37MD359B/F7, LD370SSX, 37MD350B/F7]

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.

[1] Stand

Assembly

[15] Junction
CBA

[11] Jack Holder

[12] Digital Main
CBA Unit

[2] Rear Cabinet

[3] DVD Main
CBA Unit

[4] DVD
Mechanism

[5] DVD Holder

[13] Speaker
Holder (L,R)

[14] Speaker

[16] IR Sensor
CBA

[17] Function
CBA

[6] AC Inlet
Holder

[7] Stand Hinge

[8] Inverter CBA

Removal

Step/

Loc.

No.

Part

Fig.

Remove/*Unhook/

Unlock/Release/

No.

Unplug/Unclamp/

Desolder

DVD

[4]

Mechanism

D2 ---------------

[5] DVD Holder D2 4(S-6) ---

AC Inlet

[6]

[7]

Holder
Stand

Hinge

D3 (S-7), *CN601 ---

D3 3(S-8) ---

7(S-9), *CN1001,
*CN1003, *CN1050,

D3

*CN1100, *CN1150,

D5

*CN1200, *CN1250,

[8]

Inverter
CBA

*CN1300, *CN1900

[9] Jack CBA

Power

[10]

Supply
CBA

D3

*2(S-10), *CL701B ---

D5

9(S-11), *CN101,
*CN301, *CN302,

D3

*CN303, *CN801,

D5

*CN802

Note

2
3
4
5
6

---

---

[18] LCD Module
Assembly

[19] Front
Cabinet

2. Disassembly Method

Removal

Step/

Loc.

No.

Stand

[1]

Assembly
Rear

[2]

Cabinet

DVD Main

[3]

CBA UnitD2D5

Part

Remove/*Unhook/

Fig.

No.

Unlock/Release/

Unplug/Unclamp/

Desolder

D1 3(S-1) ---

D1 15(S-2), 2(S-3) ---

4(S-4), (S-5), *CN201,
*CN301, *CN801,
*CN901, *CN902

[9] Jack CBA

[10] Power
Supply CBA

Note

1

[11] Jack Holder D3 2(S-12) ---

Digital Main

[12]

CBA UnitD3D5

4(S-13), 2(S-14),
4(S-15), *CN3902,
Shield Box

---

Speaker

[13]

Holder

D4 *Hook ---

(L,R)

[14] Speaker D4 8(S-16) ---

[15]

[16]

[17]

Junction
CBA

IR Sensor
CBA

Function
CBA

D4

Desolder ---

D5
D4

2(S-17), *CL103C ---

D5
D4

2(S-18) ---

D5

LCD

[18]

Module

D4 (S-19) ---

Assembly
Front

[19]

↓

(1)

Cabinet

↓

(2)

D4 --------------- ---

↓

(3)

↓

(4)

(5)

↓

5-8 A94G2DC

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,

H = Hex 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."

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 the Connectors (CN301), and
(CN801). Remove Screw (S-6) and remove the
DVD Main CBA Unit. (Fig. D2)

2. Reassembly Notes of New DVD Mechanism:
a. To remove the Chassis Cover, remove two

screws A as shown in Fig. D2.

b. To avoid damage of the pickup unit (laser

diode), confirm that the three short lands (either
of two places) are shorted out by soldering
between them as shown in View A in Fig. D2.

c. Connect the FFC cables of the new DVD

Mechanism to the three connectors (CN201,
CN301, CN801) on the DVD Main CBA Unit.

d. After confirming that the FFC cables are

securely connected to the three connectors,
remove the solder from the three short lands. If
the solder is not removed, the laser diode will
not light and it will not be possible to read discs.

e. Insert the pin A on the Chassis Cover into the

hole A on the Main Chassis as shown in Fig.
D2. Then tighten two screws A to install the
Chassis Cover.

3. 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)

4. How to eject a disc in emergency
Press and hold [EJECT] on the unit for more than
5 seconds.

5. How to eject manually 1

1) Remove the Rear Cabinet.

2) Rotate the gear in the direction of the arrow as

shown below.

B

View for B

The gear is turned to the direction
of the arrow.

6. How to eject manually 2

1) Remove the Rear Cabinet.

2) To remove the DVD Main CBA Unit, remove a

screw (S-6) in Fig. D2. Do not disconnect
connectors.

3) To remove the Chassis Cover, remove two

screws A as shown in Fig. D2.

4) Remove a disc.

5-9 A94G2DC

(S-3)

(S-2)

[2] Rear Cabinet

[1] Stand Assembly

(S-2)

(S-1)

(S-2)

(S-2)

Fig. D1

5-10 A94G2DC

(S-6)

(S-5)

[3] DVD Main CBA Unit

[4] DVD Mechanism

A

[5] DVD Holder

(S-4)

Remove two screws A, then short the three short lands by soldering as shown in View for A.

Chassis Cover

Either of two places

FPC Cable

View for A

Pin A

Screws A

A

Hole A

Main Chassis

Fig. D2

5-11 A94G2DC

[9] Jack CBA

[8] Inverter CBA

(S-9)

(S-9)

(S-9)

(S-11)

[12] Digital Main
CBA Unit

(S-12)

(S-15)

[11] Jack Holder

(S-10)

(S-11)

(S-11)

[10] Power
Supply CBA

Shield Box

(S-14)

(S-7)

(S-8)

[7] Stand Hinge

[6] AC Inlet
Holder

(S-13)

Fig. D3

5-12 A94G2DC

[19] Front Cabinet

[18] LCD Module
Assembly

[14] Speaker

[13] Speaker
Holder (L)

Hook

(S-16)

[14] Speaker

(S-19)

[15] Junction
CBA

[16] IR Sensor CBA

(S-17)

Hook

(S-16)

[13] Speaker
Holder (R)

[17] Function CBA

(S-18)

Fig. D4

5-13 A94G2DC

TV Cable Wiring Diagram

DVD Main
CBA Unit

CN301

CN201

CN801

Jack

CN601

CBA

CN401

To DVD Mechanism

Inverter CBA

CN1050

CN1100

Power Supply CBA

CL701B

CN303

CN302

CN301

CN101

Digital Main
CBA Unit

CN4001

CN901

CL701A

CN902

CN802

To Speaker

CN601

CN801

Junction
CBA

CN101

CN201

CN602

AC
CORD

To AC Inlet

CL102A

CN1001

CN1900

CN1150

CN1200

CN1250

CN1003

CN1300

To LCD Module
Assembly

CN3702

CN3701

CN3902

To LCD Module
Assembly

IR Sensor CBA

CL103C

CL102B

5-14 A94G2DC

Function CBA

CL103B

Fig. D5

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. Remote control unit

3. Color Analyzer

How to make the Service remote
control unit:
[ 32MD359B/F7, 37MD359B/F7,
32MD350B/F7, 37MD350B/F7 ]

Cut “A” portion of the attached remote control unit as
shown in Fig. 1.

service button
(There is a button under the plastic housing.)

[ LD320SSX, LD370SSX, LD320SS1 ]

Cut “A” portion of the attached remote control unit as
shown in Fig. 2.

service button

A

Fig. 2

How to set up the service mode:

Service mode:

1. Use the service remote control unit.

2. Turn the power on.

3. Press the service button on the service remote
control unit. The following screen appears.

"*" differs depending on the models.

Code :

***********-***

Pic code :

**-***-**-*****-***

MIPS :

Push 0key

Tuner :

****-*****-****
safety_Non

Safety :

A

Fig. 1

6-1 FL9.4EA

1. Purity Check Mode

2. VCOM Adjustment

This mode cycles through full-screen displays of red,
green, blue, and white to check for non-active pixels.

1. Enter the Service mode.

2. Each time pressing [7] button on the service
remote control unit, the display changes as
follows.

Purity Check Mode

White mode

[7] button

[7] button

Black mode

[7] button

Red mode

[7] button

Green mode

[7] button

Blue mode

Test Point Adj. Point

Screen

[CHANNEL UP/DOWN ]

buttons

M. EQ. Spec.

Color analyzer See below

Figure

To avoid interference from ambinent
light, this adjustment should be
performed in a dark room.

Perpendicularity

L = 3 cm

Color Analyzer

1. Operate the unit for more than 20 minutes.

2. Set the color analyzer 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.

3. Enter the Service mode.

4. Press [3] button on the service remote control unit.

5. Press [CHANNEL UP/DOWN] buttons on the
service remote control unit so that the color
analyzer value becomes minimum.

[7] button

White 20% mode

Note:

When entering this mode, the default setting is White mode.

6-2 LC7NEA