Sony FWD-40LX2F Operating Instructions (Base... User manual

FLAT WIDE DISPLAY MONITOR
FWD-40LX2F
FWD-40LX2X
SERVICE MANUAL
1st Edition (Revised 1)
REMOTE COMMANDER
RM-FW001
SPEAKER SYSTEM
SS-SP40FW

FWD-40LX2F
FWD-40LX2X
!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen.Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien.Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.

FWD-40LX2F
FWD-40LX2X
Vorsicht!
Explosionsgefahr bei unsachgemäßem Austausch
der Batterie.
Ersatz nur durch denselben oder einen vom
Hersteller empfohlenen ähnlichen Typ. Entsorgung
gebrauchter Batterien nach Angaben des
Herstellers.
ATTENTION
Il y a danger d’explosion s’il y a remplacement
incorrect de la batterie.
Remplacer uniquement avec une batterie du même
type ou d’un type équivalent recommandépar le
constructeur.
Mettre au rebut les batteries usagées conformément
aux instructions du fabricant.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig
håndtering.
Udskiftning måkun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Lithiumbatteri - Eksplosjonsfare.
Ved utskifting benyttes kun batteri som
anbefalt av apparatfabrikanten.
Brukt batteri returneres
apparatleverandøren.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ
som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande
föreskrifter.
VAROITUS
Paristo voi räjähtää jos se on virheellisesti
asennettu.
Vaihda paristo ainoastaan laitevalmistajan
suosittelemaan tyyppiin.
Hävitäkäytetty paristo valmistajan ohjeiden
mukaisesti.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to the
manufacturer’s instructions.
1 (P)
For the customers in the Netherlands
Voor de klanten in Nederland
Hoe u de batterijen moet verwijderen, leest u in de tekst
van deze handleiding.
Gooi de batterij niet weg maar lever deze in als klein
chemisch afval (KCA).
Für Kunden in Deutschland
Entsorgungshinweis: Bitte werfen Sie nur entladene
Batterien in die Sammelboxen beim Handel oder den
Kommunen. Entladen sind Batterien in der Regel dann,
wenn das Gerät abschaltet und signalisiert “Batterie
leer”oder nach längerer Gebrauchsdauer der Batterien
“nicht mehr einwandfrei funktioniert”. Um
sicherzugehen, kleben Sie die Batteriepole z.B. mit
einem Klebestreifen ab oder geben Sie die Batterien
einzeln in einen Plastikbeutel.
For the customers in Taiwan only

FWD-40LX2F
FWD-40LX2X
2 (P)
Notes on Wall Mounting
For Sony Dealers
Sufficient expertise is required for installing this product
on the wall. Be sure to read the instruction manual
provided with the Wall-Mount Bracket thoroughly to do
the installation work safely. Sony is not liable for any
damages or injury caused by mishandling or improper
installation.
Be sure to use the UL approved Wall-Mount Bracket
which is tested with FWD-40LX2F/40LX2X based on
IEC60950 and UL60950.
SONY is not liable for any damages or injury caused by
using any Wall-Mount Bracket which is not Approved by
UL.
Be sure to install the Display Unit securely to the wall
following the instructions given in the instruction manual
of the Wall-Mount Bracket.
If any of the screws are loose or fall out, the Display Unit
may fall and cause injury or property damage. Be sure to
use the appropriate screws for the material of the wall and
install the unit securely.
If the wall on which the Wall-Mount Bracket is installed is
unstable, uneven, or not perpendicular to the floor, the unit
may fall and cause injury or property damage.
The wall should be capable of supporting a weight of at
least four times the Display Unit weight, 104.0 kg. (The
Display Unit weight of FWD-40LX2F/40LX2X is
approximately 26.0 kg. )
Be sure to use the specified screws and attachment parts
properly following the instructions given in the instruction
manual of the Wall-Mount Bracket. If you use substitute
items, the Display Unit may fall, and cause bodily injury to
someone or damage to the Display Unit.
Be sure to assemble the bracket properly following the
instructed procedure explained in the instruction manual of
the Wall-Mount Bracket.
Be sure to tighten the screws securely in the designated
position.
If you fail to do so, the Display Unit may fall, and cause
bodily injury to someone or damage to the Display Unit.
Do not disassemble or make alterations to the parts of the
Wall-Mount Bracket.
If you do so, the Wall-Mount Bracket may fall and cause
injury or property damage.
Do not mount any equipment other than the specified
product.
If you mount equipment other than specified in the
instruction manual of the Wall-Mount Bracket, it may fall
or break, and cause injury or property damage.
Do not install the Display Unit over or under an air-
conditioner.
If the Display Unit is exposed to water leaks or air current
from an air-conditioner for a long time, it may cause a fire,
an electric shock or a malfunction of the Display Unit.
Do not allow the mains lead or the connecting cable to be
pinched.
If the mains lead or the connecting cable is pinched
between the unit and the wall or is bent or twisted by force,
the internal conductors may become exposed and cause a
short circuit or an electrical break. This may cause a fire or
an electric shock.
After proper installation of the Display Unit, secure the
cables properly.
If people or objects get tangled in the cables, this may
result in injury or damage to the Display Unit.
Be careful not to hurt your hands or fingers when installing
the Display Unit.

FWD-40LX2F
FWD-40LX2X 3 (P)
25 (9 7/8)
25 (9 7/8)
10
(4)
10
(4)
Unit : cm
(
inches
)
2.5 (1)
25
(9 7/8)
20
(9 7/8)
10 (4)
20 (4)
Make sure that
the POWER
switch is at the
lower right.
Unit : cm (inches)
2.5 (1)
Caution
Provide an ample amount of space around the display
.When you set up the Display Unit, make sure there is more space around the display than that shown in
the figure below. This will allow for proper ventilation.
.Wile the unit is on, a certain amount of heat builds up inside. This can cause burns. Avoid touching the
top or rear of the unit when it is powered on or just after it has entered standby mode.
When mounting the display horizontally
When mounting the display vertically

1
FWD-40LX2F
FWD-40LX2X
Table of Contents
1. Service Overview
1-1. Appearance Figure ..........................................................1-1
1-2. Board Location ...............................................................1-1
1-3. Disassembly ....................................................................1-2
1-3-1. Cabinet Assembly .................................................1-2
1-3-2. Bezel Assembly/H1 Board/H2 Board/LOGO
Assembly ...............................................................1-3
1-3-3. A Board/JT Board .................................................1-4
1-3-4. G6 Board ...............................................................1-5
1-3-5. SP Board................................................................1-6
1-3-6. LCD Panel .............................................................1-7
1-4. Warning on Power Connection.......................................1-8
2. Troubleshooting
2-1. Judgment When No Image is Displayed ........................2-1
2-2. Self-Diagnosis Function .................................................2-1
3. Circuit Description
3-1. A Board...........................................................................3-1
3-2. H1 Board.........................................................................3-2
3-3. H2 Board.........................................................................3-2
3-4. G6 Board.........................................................................3-3
4. Electrical Alignment
4-1. Service Mode ..................................................................4-1
4-1-1. Start .......................................................................4-1
4-2. White Balance Adjustment .............................................4-1
4-2-1. Preparation ............................................................4-1
4-2-2. Setting....................................................................4-1
4-2-3. Cool Adjustment ...................................................4-2
4-2-4. Neutral Adjustment ...............................................4-2
4-2-5. Warm Adjustment .................................................4-2
5. Spare Parts
5-1. Notes on Repair Parts .....................................................5-1
5-2. Exploded Views ..............................................................5-2
6. Diagrams
6-1. Overall Block Diagrams .................................................6-1
6-2. Frame Wiring ..................................................................6-3

1-1
FWD-40LX2F
FWD-40LX2X
Section 1
Service Overview
1-1. Appearance Figure
1-2. Board Location
1
4
7
C
2
5
8
0
3
6
9
SET
H1 board
H2 board
LOGO board
SP board
G6 board
A board
JT board
U10 board
U20 board

1-2 FWD-40LX2F
FWD-40LX2X
1-3. Disassembly
n
When removing/installing the cabinet and replacing the board, place the unit on the conductive cushion.
1-3-1. Cabinet Assembly
The illustration indicates FWD-40LX2F/S and FWD-40LX2F/B.
5Panel securing screws
1Side cable cover
1Side cable cover
2Bottom cable cover
7Four screws
8Four knobs
9Four screws
9Two screws
A
B
A
B
Conductive cushion
Upper side
!- Cabinet assembly
6U10 block assembly
0Screw
3Panel securing
screws
4U20 block assembly

1-3
FWD-40LX2F
FWD-40LX2X
1-3-2. Bezel Assembly/H1 Board/H2 Board/LOGO Assembly
.Remove the cabinet assembly. (Refer to Section 1-3-1.)
m
.When removing the base chassis assembly, be sure to work with more than two persons.
.When removing the base chassis assembly, hold the four portions A and remove it from
the bezel assembly.
.Place the removed base chassis assembly on the conductive cushion.
Conductive cushion
Upper side
1Two screws
5Control button
2Control button panel
4H1 board
3Three
screws
KCN1 Portions A
8Three screws
9Corner A bracket
8Three
screws
!= Screw
9Corner A
bracket
0Three
screws
!- Corner B bracket
0Three screws
!- Corner B
bracket
!\ Base chassis
assembly
!' Light
guide
!' Light
guide
@/ Two
screws
!; Screw
!; Screw
!, H2 board
!] Eight screws
Portions A
ICN18
LCN1
B
C
C
B
@= Bezel assembly
![ Side
bracket
(FWD-40LX2F/S,
FWD-40LX2F/B)
!= Screw
![ Side bracket
(FWD-40LX2F/S,
FWD-40LX2F/B)
@- LOGO
assembly
FWD-40LX2F/S
FWD-40LX2F/B
FWD-40LX2X
!. Black tape
6Two
screws
7Harness
6Screw
7Harness 6Screw
7Harness
6Two screws
6Two screws
7Harness

1-4 FWD-40LX2F
FWD-40LX2X
1-3-3. A Board/JT Board
.Remove the cabinet assembly. (Refer to Section 1-3-1.)
Conductive cushion
Upper side
3Two connector screws
CN7 CN18CN19
CN10
CN16
CN2
1Eight screws
2Shield cover
5Nine screws
1Nine screws
5Two screws
6A board 7JT board
6A board
CN17
4Two screws
Battery holder
8Removing the lithium battery.
Remove the lithium battery in the
direction of the arrow.
Lithium battery
(CR1220)

1-5
FWD-40LX2F
FWD-40LX2X
1-3-4. G6 Board
.Remove the cabinet assembly. (Refer to Section 1-3-1.)
Conductive cushion
Upper side
1Four screws
2Arm
3Fourteen screws
4Shield cover G
5Five screws
6G6 board
6G6 board
CN901 CN951
CN950
CN931

1-6 FWD-40LX2F
FWD-40LX2X
1-3-5. SP Board
.Remove the cabinet assembly. (Refer to Section 1-3-1.)
.Remove the arm and shield cover G. (Refer to Section 1-3-4.)
3Two screws
5Two screws
4Inlet bracket
2Screw
6SP board
SCN2
Conductive cushion
Upper side
CN901
1Nickel tape

1-7
FWD-40LX2F
FWD-40LX2X
1-3-6. LCD Panel
.Remove each part. (Refer to Sections 1-3-1 to 1-3-5.)
Conductive cushion
Attaching position of gaskets
Upper side
1Three screws
5Four screws
4LVDS cable 8LCD panel
6Base chassis
2Cable cover
3Tape
9Cushion
!- Gasket
!= Gasket
0Cushion
9Cushion
0Cushion
7Aluminium tape
7Aluminium tape
7Aluminium tape
7Aluminium tape
7Aluminium tape

1-8 FWD-40LX2F
FWD-40LX2X
1-4. Warning on Power Connection
Use the proper power cord for your local power supply.
United States, Continental Europe UK, Ireland, Australia, Japan
Canada New Zealand
Plug type VM0233 COX-07/636 –1) VM1296
Female end VM0089 COX-02/VM0310B VM0303B VM1313
Cord type SVT H05VV-F CEE (13) 53rd (O, C) HVCTF
Minimum cord 10 A/125 V 10 A/250 V 10 A/250 V 10 A/125 V
set rating
Safety approval UL/CSA VDE VDE DENAN-HO
1) Use an appropriate rating plug which complies with local regulations.

2-1
FWD-40LX2F
FWD-40LX2X
Section 2
Troubleshooting
POWER/STANDBY
indicator
Front side
2-2. Self-Diagnosis Function
The self-diagnosis function installed in this unit forcibly
shuts down this unit when the items below are detected
(abnormality is generated) or when the allowable value are
exceeded. The detected items and the allowable values are
as described below.
1. Panel error
This monitors the operation abnormality of a panel
inverter. This unit shuts down when the INV_DET signal
input from CN19 on the A board remains high after the
power is turned on.
2. Increase in sensor temperature
This detects the temperature of the A board and power
supply boards (G6 board). This unit shuts down when the
state in which the temperatures below were exceeded is
detected for two seconds or more.
.A board: 76 dC
.Power supply board: 100 dC
3. Abnormality of supply voltage
The DC voltage error detection in the A board is performed.
This unit is shut down when the voltage of 13 V becomes
6.9 V or less after the power is turned on.
The indicator flashes when an abnormal voltage is detected
for approximately 50 seconds. The power may be shut
down before the indicator starts flashing.
2-1. Judgment When No Image is
Displayed
The status in the case where “No image is displayed” is
displayed according to the number of times when the
POWER/STANDBY indicator in the lower-right position
of this unit’s front panel blinks in red. Blinking of two to
three times or five times is repeated after several seconds.
Number of blinking times Status
Two times An error code is detected from the
panel.
Three times When the sensor temperature
exceeds the allowable value
Five times 13 V power supply is detected.

3-1
FWD-40LX2F
FWD-40LX2X
Section 3
Circuit Description
The main functions of each board in this unit are as
described below.
.A board
This board mounts an HD15 connector and two HDMI
connector interfaces. It processes a video signal together
with the signal from an option board using a scaler and
outputs data to the display panel. This board also outputs
the selected audio signal to the SP board.
.JT board
This is a relay board used for connecting the option
board and A board of slot 2.
.H1 board
This is a user interface board. This board mounts
[POWER], [INPUT]/[ENTER], [MENU], [UP],
[DOWN], [RIGHT], and [LEFT] buttons.
.H2 board
This board mounts two-color LED, which displays the
status of this unit, and a remote control photosensing
block.
.LOGO board
This is an LED board used for shining a SONY logo.
.SP board
This board mounts a speaker output terminal for audio
output.
.G6 board
This is a power board that has output voltages of STBY5
V, 5 V, 12 V, and 13 V.
3-1. A Board
The A board mounts HD15 (CN1), HDMI1 (CN12), and
HDMI2 (CN11) as a video input terminal. The signal from
option slot 1 is input from CN14, and the signal from
option slot 2 is input from CN13 through the JT board.
The RGB/YPbPr signals from HD15, and slots 1 and 2 are
directly input to a scaler circuit (U5). HDMI1 and HDMI2
signals are switched using an equalizer (U20), and the
selected TMDS signal is input to the scaler circuit. An
equalizer switches signals and controls the signal output,
by the port control (SEL_H and CE_H) from a scaler
circuit. The CVBS and Y/C signals from an option slot are
input through a p-type filter circuit to a scaler circuit. The
video signal from which an HDMI signal was eliminated is
input to a scaler circuit without passing through a switch
circuit. However, the RGB sync signals from slots 1 and
2, and HD15 are selected using a switching circuit (U3) by
HV_SA and HV_SB signals and input to a scaler circuit.
The input signal from HD15 is used for a video sync
signal. It is switched using a switching circuit (U4) by a
SYNC_MO signal and input to the port of a scaler circuit
that differs from the case of an H sync signal.
In a scaler circuit, resolution is converted according to the
display panel, and various picture qualities as well as wide-
angle setting or zoom setting are set and LVDS-transferred
to the panel through CN2.
There are the analog input from a mini-jack (CN3), slot 1,
or slot 2 and the digital input from HDMI in an audio
input. An analog audio signal is input to an audio proces-
sor circuit (U14). The audio signal from HDMI is output
from a scaler circuit as an I2S signal and input to U14. The
audio processor circuit is controlled by I2C to switch the
input and set the sound quality and volume. The selected
audio signal is passed through an amplifier circuit (U17)
and output to the SP board through CN10. The mini-jack
input cannot be only selected as the function of the main
unit only during HD15 input, but also it can be selected as
an audio input during conversion of DVI into HDMI. An
audio signal is muted by the software control of an audio
processor and the hardware control of an amplifier.

FWD-40LX2F
FWD-40LX2X
3-2
A PWM signal (LOGO_PWM) is output from a scaler
circuit to the LOGO board that shines a SONY logo. The
output signal of an amplifier circuit (U28) is integrated to
drive LED on the LOGO board as a DC signal. This LED
is turned on and off using the LOGO_EN signal from a
scaler circuit.
An option board is discriminated by discriminating
OP1_SENSE1, OP1_SENSE2, OP2_SENSE1, and
OP2_SENSE2 signals at the ADC port of a scaler circuit
using a voltage. These signals are passed through IC
(U30) and switched using the control signals (Q_SEL1 and
Q_SEL2) from the scaler circuit. Only when the power is
turned on, these signals are switched and the option board
is discriminated. After that, the output signal U30 is
switched to power temperature (PS_TEMP) and polled as a
self-diagnosis function.
3-2. H1 Board
A button input signal is sent to the A board as a DC
voltage signal. 1 V, 1.5 V, and 2.2 V are sent to an
ADC_IN2 signal when you press the [MENU], [INPUT],
and [LEFT] buttons. 1 V, 1.5 V, and 2.2 V are sent to an
ADC_IN1 signal when you press the [RIGHT], [DOWN],
and [UP] buttons. 0 V is sent when you press only the
[POWER] button as a PWR_KEY signal. Each signal is
set to 3.3 V when you press no button.
3-3. H2 Board
The H2 board mounts an infrared remote control photosen-
sor (IU1) and sends data to the A board as an IR signal.
This board also mounts two-color LED (ID5) that displays
the status of this unit. The LED controls light emission by
controlling the cathode.
This unit is used for BKM-FW20 that has RS-232C and
Control-S as an option board. The RS-232C (UART)
signal from an option slot is selected using a switching
circuit (U41). The signals from option slots 1 and 2 are
selected when OP1_RS_EN or OP2_RS_EN is set low on
the option side. OP1_RS_EN or OP2_RS_EN is low
during initial setting of BKM-FW20. Slot 2 has priority
when both OP1_RS_EN and OP2_RS_EN are low. The
selected RS-232C signal is connected to the control port or
firmware write port of a scaler circuit using a switching
circuit (U31). It is switched to the firmware write port
position when an FWE signal is set low on the option side
as the control of U31. The FWE signal is high during
initial setting of BKM-FW20. The signal (IR) from a
remote control photosensing block is shifted in level to a
signal (IRO) of 5 V to 3.3 V using U27, branching to each
option slot connector. The Control-S signals (OP1_IRI
and OP2_IRI) from the IRO signal and each option slot are
input to a switching circuit (U29), selected, and input to
the IR port of a scaler circuit. Which signal to select is
determined by controlling the OP1_S_EN and OP2_S_EN
signals from each option. When BKM-FW20 is not
connected, each signal is set high and an IRO signal is
selected. The IRI signal from each slot is selected when
OP1_S_EN and OP2_S_EN signals are set low. Slot 2 has
priority when both OP1_S_EN and OP2_S_EN signals are
low. The OP1_S_EN and OP2_S_EN signals are low
during initial setting of BKM-FW20.
The A board mounts a real time clock circuit (U11). The
real time clock circuit is controlled by I2C. A timer
function is controlled based on the time read operation by
polling from a scaler. During timer correction, a timer is
adjusted to an error of 3 ppm by outputting a pulse of 1 Hz
to CN8 and putting a correction value in the register of IC
according to the obtained measurement value. The
corrected value is obtained in the adjustment stage of a
single board at a factory and stored in memory. It is not
lost even in the state in which the power is not connected.
A button battery is connected to RTC. Even with the AC
power not connected, power is supplied to IC so that U11
operates continuously.
The backlight of LCD is controlled by the PWM signal
(BL_CONT) from a scaler circuit. The PWM signal is
inverted using Q20, integrated using R373 and C356, and
output to CN19 as a DC signal (INV_ADJ). The On/Off
signal (PBIAS) of a panel inverter is output from the
dedicated port of a scaler and then output from CN19 as an
INV_ON signal.