Sony FWD-42LX1 Schematic
FLAT WIDE DISPLAY
FWD-42LX1
REMOTE COMMANDER
RM-980
SPEAKER SYSTEM
SS-SP42FW
TABLETOP STAND
SU-42FW
SERVICE MANUAL
1st Edition
! 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-42LX1
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.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig
håndtering.
Udskiftning må kun 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.
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 recommandé par le
constructeur.
Mettre au rebut les batteries usagées conformément
aux instructions du fabricant.
For the customers in the Netherlands
Voor de klanten in Nederland
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.
Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
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).
FWD-42LX1
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.
1 (P)
Table of Contents
1. Service Overview
1-1. Appearance Figure ......................................................................................1-1
1-2. Board Location............................................................................................1-1
1-3. Removing/Reinstalling the Cabinet ............................................................1-2
1-3-1. Cabinet Assembly ..................................................................... 1-2
1-3-2. Bezel Assembly..........................................................................1-3
1-4. Replacing the Board .................................................................................... 1-4
1-4-1. D2 Board/V Board/JT Board .....................................................1-5
1-4-2. S Board/FA Board ......................................................................1-6
1-4-3. G1 Board ....................................................................................1-7
1-4-4. K Board ......................................................................................1-8
1-4-5. F Board .......................................................................................1-8
1-4-6. H1 Board ....................................................................................1-9
1-4-7. H2 Board ....................................................................................1-9
1-4-8. H3 Board ..................................................................................1-10
1-4-9. SP Board...................................................................................1-10
1-4-10. U1 Board/U2 Board .................................................................1-11
1-5. Replacing the Main Parts ..........................................................................1-12
1-5-1. DC Fan .....................................................................................1-12
1-5-2. Lithium Battery ........................................................................1-12
1-5-3. LCD Module ............................................................................ 1-13
1-6. Service Position.........................................................................................1-14
1-6-1. Service Position of D2 Board/FA Board/G1 Board/
F Board/K Board/V Board/JT Board .......................................1-14
1-7. Packing of the LCD Module .....................................................................1-15
1-8. Replacing the Battery ................................................................................ 1-16
1-9. Performance and Specifications of This Unit ...........................................1-16
1-10. Unleaded Solder ........................................................................................ 1-16
1-11. Warning on Power Connection .................................................................1-17
FWD-42LX1
2. Electrical Alignment
2-1. Required Equipment....................................................................................2-1
2-2. Electric Adjustment in Service Mode .........................................................2-1
2-2-1. Service Mode .............................................................................2-1
2-2-2. Picture Mode ..............................................................................2-1
2-2-3. Adjust Picture (Picture quality adjustment) ...............................2-2
2-2-4. Adjust Sound (Sound quality adjustment) ................................. 2-2
2-2-5. Vivid/Standard Save...................................................................2-2
2-2-6. White Balance Adjustment ........................................................2-2
2-2-7. AD Calibration Adjustment ....................................................... 2-3
2-2-8. Factory Reset............................................................................2-17
2-2-9. Option Switch...........................................................................2-17
1
3. Circuit Description
3-1. Outline.........................................................................................................3-1
3-2. D2 Board .....................................................................................................3-2
3-3. V Board .......................................................................................................3-4
3-4. H1 Board .....................................................................................................3-5
3-5. H2 Board .....................................................................................................3-5
3-6. H3 Board .....................................................................................................3-5
3-7. K Board .......................................................................................................3-5
3-8. SP Board......................................................................................................3-5
3-9. S Board........................................................................................................3-5
3-10. FA Board.....................................................................................................3-6
3-11. JT Board ...................................................................................................... 3-6
3-12. F Board........................................................................................................3-6
3-13. G1 Board .....................................................................................................3-6
4. Troubleshooting
4-1. Judgment When No Image is Displayed ..................................................... 4-1
4-2. Self-Diagnosis Function..............................................................................4-1
5. Semiconductor Pin Assignments
6. Spare Parts
6-1. Notes on Repair Parts..................................................................................6-1
6-2. Exploded Views ..........................................................................................6-2
6-3. Electrical Parts List .....................................................................................6-8
6-4. Packing Materials & Supplied Accessories .............................................. 6-40
6-5. SS-SP42FW...............................................................................................6-40
6-6. SU-42FW .................................................................................................. 6-40
7. Block Diagrams
Overall.........................................................................................................7-1
2
FWD-42LX1
8. Schematic Diagrams
D2 ................................................................................................................ 8-2
F.................................................................................................................8-11
FA..............................................................................................................8-12
G1 .............................................................................................................. 8-13
H1 .............................................................................................................. 8-16
H2 .............................................................................................................. 8-16
H3 .............................................................................................................. 8-16
S.................................................................................................................8-16
SP ..............................................................................................................8-16
JT...............................................................................................................8-17
K ................................................................................................................ 8-18
U1 .............................................................................................................. 8-20
U2 .............................................................................................................. 8-21
V ................................................................................................................ 8-22
Frame Wiring ............................................................................................8-31
9. Board Layouts
D2 ................................................................................................................ 9-1
G1 ................................................................................................................ 9-4
F...................................................................................................................9-6
FA................................................................................................................9-8
JT.................................................................................................................9-8
H1 ................................................................................................................ 9-9
H2 ................................................................................................................ 9-9
H3 ................................................................................................................ 9-9
K ................................................................................................................ 9-10
V ................................................................................................................ 9-12
U1 .............................................................................................................. 9-14
U2 .............................................................................................................. 9-16
S.................................................................................................................9-18
SP ..............................................................................................................9-18
FWD-42LX1
3
1-1. Appearance Figure
Section 1
Service Overview
1 2 3
4 5 6
7 8 9
0
ON SET OFF
1-2. Board Location
H1 board
K board
G1 board
D2 board
H3 board
V board
U1 board
U2 board
JT board
FA board
S board
H2 board
SP board
F board
FWD-42LX1
1-1
1-3. Removing/Reinstalling the Cabinet
n
When removing/installing the cabinet and replacing the board, place the unit on the conductive cushion.
1-3-1. Cabinet Assembly
Removal
1. Open the cable side cover on the right side (viewed from backside) and loosen the four panel securing
screws, then remove the U1 block assembly and U2 block assembly.
2. Remove the four screws (PSW M6 x 20), then remove the four knobs.
3. Remove the ten screws (PSW4 x 10) and the screw (PSW3 x 12), then hold the two handles and
remove the cabinet assembly.
Knobs
PSW
4 x 10 (Black)
Cabinet
assembly
PSW
M6 x 20 (Black)
Handle
Cable side cover
Handle
U1 block
assembly
PSW
3 x 12 (Black)
Panel securing
screws
U2 block
assembly
Conductive cushion
Installation
4. Reattach the cabinet assembly in the reverse order of steps 1 to 3.
1-2
FWD-42LX1
1-3-2. Bezel Assembly
m
. When removing the chassis assembly, be sure to work with more than two persons.
. Place the removed chassis assembly on the conductive cushion.
Removal
1. Remove the cabinet assembly. (Refer to Section 1-3-1.)
2. Disconnect the harness from the connector (CN9200) on the H2 board.
3. Disconnect the harness from the connector (CN9300) on the H3 board.
4. Remove the sixteen screws, then hold the arm (left side) and two portions A of the frame (V), and
remove the chassis assembly.
Arm
(on the left side when viewed from
backside of the unit)
BVTP4 x 10
Portions A
Frame (V)
Chassis assembly
Bezel assembly
Harnesses
CN9200
CN9300
H2 board
H3 board
Installation
5. Reattach the chassis assembly in the reverse order of steps 2 to 4.
6. Reattach the cabinet assembly. (Refer to Section 1-3-1.)
FWD-42LX1
Conductive cushion
1-3
1-4. Replacing the Board
Removal
1. Remove the cabinet assembly. (Refer to Section 1-3-1.)
2. Remove the eight screws (BVTT4 x 8), then remove the two arms.
3. Remove the four screws (BVTT3 x 6), then remove the LVDS cable shield assembly.
4. Remove the ten screws (BVTT3 x 6), then remove the shield cover G assembly.
5. Remove the fifteen screws (BVTT3 x 6), then remove the shield cover D.
BVTT
4 x 8
Shield cover G
assembly
BVTT
3 x 6
Arm
(on the left side when viewed
from backside of the unit)
LVDS cable
shield assembly
Shield cover D
BVTT
3 x 6
BVTT
3 x 6
Arm
(on the right side when viewed
from backside of the unit)
BVTT
4 x 8
Conductive cushion
Installation
6. Reattach the LVDS cable shield assembly, shield cover G assembly, shield cover D and two arms in
the reverse order of steps 2 to 5.
7. Reattach the cabinet assembly. (Refer to Section 1-3-1.)
1-4
FWD-42LX1
1-4-1. D2 Board/V Board/JT Board
m
After replacing the D2 board or V board, be sure to perform the “2-2-6. White Balance Adjustment” and
“2-2-7. AD Calibration Adjustment”.
Removal
1. Remove the cabinet assembly. (Refer to Section 1-3-1.)
2. Remove the arm on the right side and shield cover D. (Refer to steps 2 and 4 of Section 1-4.)
3. Remove the screw (BVTT3 x 6), then remove the connector cover assembly.
4. Disconnect the fourteen harnesses connected to the D2 board.
5. Disconnect the three harnesses from the connectors (CN3901-CN3903) on the V board.
6. Remove the five screws (BVTT3 x 6) securing the D2 board.
7. Remove the four screws (BVTT3 x 6) securing the V board and two screws (BVTT3 x 6) securing
the JT board.
8. Remove the nine screws (BVTT3 x 6), then remove the connector bracket assembly.
9. Remove the V board from the connector (CN1000) on the D2 board in the direction shown by the
arrow B.
10. Remove the JT board from the connector (CN3001) on the V board in the direction shown by the
arrow C.
11. Remove the six hexagonal screws and the screw (BVTP3 x 12), then remove the D2 board.
CN1203
CN1204
CN2202
CN1004
D2 board
Harnesses
Conductive
cushion
CN1206
CN1905
CN2200
Harnesses
BVTT
3 x 6
CN1209
CN2203
CN1003
BVTT
3 x 6
Connector
bracket
CN1001
CN1008
D2 board
CN1000
BVTT
3 x 6
CN1005
CN1002
Connectors
CN3900
Hexagonal
screws
BVTP
3 x 12
B
Harnesses
V board
BVTT
3 x 6
CN3903
CN3902
V board
BVTT
3 x 6
BVTT
3 x 6
Connectors
CN3001
BVTT
3 x 6
BVTT
3 x 6
CN3901
BVTT
3 x 6
C
CN2701
Connector cover
JT board
FWD-42LX1
1-5
Installation
1-4-2. S Board/FA Board
12. Install the D2 board, V board and JT board in the
reverse order of steps 3 to 11.
m
. Be sure to securely connect the connector (CN1000)
on the D2 board and the connector (CN3900) on the
V board.
. Be sure to securely connect the connector (CN3001)
on the V board and the connector (CN2701) on the
JT board.
. Be sure to securely fix the LVDS harness with the
harness retainers to prevent the LVDS harness from
contacting the shield cover D. (Refer to Fig. A.)
No contact with shield case D
Harness retainers
LVDS
harness
LVDS
harness
Shield case D
D2 board
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the two arms, shield cover G assembly and
shield cover D. (Refer to steps 2 to 4 of Section 1-4.)
3. Disconnect the harness from the connector (CN9400)
on the S board.
4. Remove the screw, then remove the S board.
5. Disconnect the two harnesses from the connectors
(CN5900 and CN5901) on the FA board.
6. Remove the two screws, then remove the FA board.
CN9400
S board
Harness
Harness
BVTT
3 x 6
CN5900
BVTT
3 x 6
Harness
CN5901
FA board
Harness retainers
Fig. A.
. When attaching the connector cover assembly, be
sure to securely insert the two notches into the
portion A of the D base chassis. (Refer to Fig. B.)
D base
chassis
Portion A
notch
Fig. B.
BVTT
3 x 6
Connector
cover assembly
notch
Portion A
13. Reassemble this unit in the reverse order of steps 1 and 2.
1-6
Conductive cushion
Installation
7. Install the S board and FA board in the reverse order
of steps 3 to 6.
8. Reassemble this unit in the reverse order of steps 1 and 2.
FWD-42LX1
1-4-3. G1 Board
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the left side and shield cover G
assembly. (Refer to steps 2 and 3 of Section 1-4.)
3. Disconnect the twelve harnesses from the connectors
(CN6000, CN6400-CN6410) on the G1 board.
4. Remove the five screws.
5. Remove the G1 board from the four board spacers.
CN6408
CN6410
CN6400
G1 board
BVTT
3 x 6
CN6401
CN6404
Harnesses
CN6409
CN6406
CN6407
CN6402
CN6405
CN6403
CN6000
Harnesses
G1 board
FWD-42LX1
Board spacers
Conductive cushion
Installation
6. Install the G1 board in the reverse order of steps 3 to 5.
7. Reassemble this unit in the reverse order of steps 1 and
2.
1-7
1-4-4. K Board
1-4-5. F Board
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the left side and shield cover G
assembly. (Refer to steps 2 and 3 of Section 1-4.)
3. Disconnect the three harnesses from the connectors
(CN5000-CN5002) on the K board.
4. Remove the four screws, then remove the K board.
Harness
BVTT
3 x 6
CN5002
Conductive
cushion
K board
Harness
CN5000
Harness
CN5001
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the left side and shield cover G
assembly. (Refer to steps 2 and 3 of Section 1-4.)
3. Disconnect the three harnesses from the connectors
(CN8001-CN8003) on the K board.
4. Remove the four screws, then remove the F board.
Harnesses
BVTT
3 x 6
F board
CN8003
Conductive
cushion
CN8001
CN8002
Installation
5. Install the K board in the reverse order of steps 3 and
4.
6. Reassemble this unit in the reverse order of steps 1 and
2.
1-8
Installation
5. Install the F board in the reverse order of steps 3 and 4.
6. Reassemble this unit in the reverse order of steps 1 and
2.
FWD-42LX1
1-4-6. H1 Board
1-4-7. H2 Board
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the two screws (BVTT3 x 6), then remove
the control button panel.
3. Remove the three screws (BVTP3 x 8), then remove
the H1 board.
4. Disconnect the harness from the connector (CN9100)
on the H1 board.
Opening
Control panel assembly
Harness
BVTT
3 x 6
Control button
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the bezel assembly. (Refer to Section 1-3-2.)
3. Remove the hook from the rib in the center of the
lower portion on the bezel assembly.
4. Slowly incline the H2 board in the direction shown by
the arrow, then remove it from the bezel assembly.
H2 board
Hook
(upper portion)
CN9200
Openings
Hook (upper portion)
Hook
(lower portion)
CN9100
Control
button panel
Conductive cushion
H1 board
BVTP
3 x 8
Harness
Installation
5. Install the H1 board in the reverse order of steps 2 to 4.
n
When attaching the control panel assembly, route the
harness through the opening.
6. Reattach the cabinet assembly.
(Refer to Section 1-3-1.)
FWD-42LX1
Rib
Conductive cushion
Bezel assembly
Bezel
assembly
H2 board
Installation
4. Install the H2 board.
n
When installing the H2 board, insert the two hooks
(upper portion) into the openings of the cabinet
assembly and push in the hook (lower portion).
5. Reassemble this unit in the reverse order of steps 1 and
2.
1-9
1-4-8. H3 Board
1-4-9. SP Board
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the screw, then remove the light pipe and H3
board.
3. Disconnect the harness from the connector (CN9300)
on the H3 board.
Harness
CN9300
Light pipe
BVTP
3 x 12
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the left side and shield cover G
assembly. (Refer to steps 2 and 3 of Section 1-4.)
3. Disconnect the harness from the connector (CN9500)
on the SP board.
4. Remove the two screws, then remove the SP board.
Harness
CN9500
SP board
Conductive cushion
H3 board
H3 board
Bezel assembly
Installation
4. Install the light pipe and H3 board in the reverse order
of steps 2 and 3.
5. Reattach the cabinet assembly.
(Refer to Section 1-3-1.)
n
When attaching the cabinet assembly, be careful not to
catch the harness.
BVTP
3 x 12 (Black)
Installation
5. Install the SP board in the reverse order of steps 3 and
4.
6. Reassemble this unit in the reverse order of steps 1 and
2.
1-10
FWD-42LX1
1-4-10. U1 Board/U2 Board
Installation
Removal
1. Remove the U1 block assembly and U2 block
assembly. (Refer to step 1 of Section 1-3-1.)
U1 block assembly
2. Expand the four portions A of the U1 block assembly,
then remove the cover.
3. Remove the screw (BVTP3 x 8) and two screws
(PSW3 x 8), then remove the U1 board from the U1
panel assembly.
U2 block assembly
4. Expand the four portions A of the U2 block assembly,
then remove the cover.
5. Remove the screw (BVTP3 x 8) and two screws
(PSW3 x 8), then remove the U2 board from the U2
panel assembly.
. U1 block assembly
Portions A
Cover
6. Install the U1 board and U2 board in the reverse order
of steps 2 to 5.
7. Reattach the U1 block assembly and U2 block
assembly to this unit.
(Refer to step 1 of Section 1-3-1.)
. U2 block assembly
Portions A
Cover
Portions A
U1 board
Portions A
BVTP3 x 8
(Black)
PSW3 x 8
(Black)
U1 panel assembly
BVTP3 x 8
(Black)
PSW3 x 8
(Black)
FWD-42LX1
U2 board
U2 panel assembly
1-11
1-5. Replacing the Main Parts
1-5-2. Lithium Battery
1-5-1. DC Fan
n
When attaching the DC fan, be careful of the orientation of
the imprinting.
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the left side and shield cover G
assembly. (Refer to steps 2 and 3 of Section 1-4.)
3. Remove the harness from the clamper.
4. Remove the connector connecting the harness removed
in step 3 to the DC fan.
5. Remove the two screws, then remove the DC fan.
Harness
PSW
3 x 14
DC fan
Connector
n
Before replacing the battery, be sure to read “1-8.
Replacing the Battery”.
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the arm on the right side and shield cover D.
(Refer to steps 2 and 4 of Section 1-4.)
3. Remove the lithium battery from the battery holder on
the D2 board.
Lithium battery
Battery holder
D2 board
Conductive
cushion
Imprintings
Conductive cushion
Clamper
Installation
6. Reattach the DC fan in the reverse order of steps 3 to
5.
7. Reassemble this unit in the reverse order of steps 1 and
2.
Installation
4. Reattach the lithium battery.
5. Reassemble this unit in the reverse order of steps 1 and
2.
1-12
FWD-42LX1
1-5-3. LCD Module
m
. When replacing the LCD module, be sure to work with two persons.
. After replacing the LCD module, be sure to perform the “2-2-6. White Balance Adjustment”.
Removal
1. Remove the cabinet assembly.
(Refer to Section 1-3-1.)
2. Remove the bezel assembly. (Refer to Section 1-3-2.)
3. Remove the two arms, shield cover G assembly and
shield cover D. (Refer to steps 2 to 4 of Section 1-4.)
4. Disconnect the harness from the control panel.
(Refer to steps 2 and 4 of Section 1-4-6.)
G base chassis assembly
BVTT
3 x 6
Connector
DC fan
BVTT
3 x 6
PSW
5 x 10
5. Remove the four screws (BVTT3 x 6), then remove
the D base chassis assembly.
6. Disconnect the connector from the DC fan.
7. Remove the six screws (BVTT3 x 6), then remove the
G base chassis assembly.
8. Disconnect the two harnesses from the LCD module.
9. Remove the two screws (PSW4 x 10) and twelve
screws (PSW5 x 10), then remove the frame assembly.
D base chassis assembly
PSW
4 x 10
PSW
4 x 10
Conductive cushion
Installation
10. Reattach the LCD module in the reverse order of steps 5 to 9.
11. Reassemble this unit in the reverse order of steps 1 to 4.
FWD-42LX1
Frame assembly
LCD module
Harnesses
1-13
1-6. Service Position
1-6-1. Service Position of D2 Board/FA Board/G1 Board/F Board/K Board/V
Board/JT Board
m
. When attaching this unit to the stands, be sure to work with two persons.
. After attaching this unit to the stands, make sure that the knobs are securely inserted into the holes of
the stands.
Removal
1. Remove the cabinet assembly. (Refer to Section 1-3-1.)
2. Remove the two arms, shield cover G assembly and shield cover D. (Refer to steps 2 to 4 of Section 1-4.)
3. Reattach the two arms removed in step 2 with eight screws.
4. Reattach the four knobs to this unit removed in step 1 with four screws.
5. Insert the four knobs into the holes of the two stands.
D2 board
V board
JT board
F board
K board
FA board
G1 board
Unit
Insert the four knobs
into the holes of stands.
Knobs
PSW
M6 x 20
Unit
Stands
Arm
Arm
PSW
M6 x 20
Knobs
Unit
Installation
6. Remove the two stands, four knobs and two arms in the reverse order of steps 3 to 5.
Stands
7. Reassemble this unit in the reverse order of steps 1 and 2.
1-14
FWD-42LX1
1-7. Packing of the LCD Module
. Send it to the SAMSUNG repair center providing service in eachcountry.
2 Capron sheet
1 LCD module
*The glass surface must face the capron sheet.
7 Individual packing carton
6 Cushion
8 Carton
5 Lid
4 LCD module
3 PP box
6 Cushion
FWD-42LX1
1-15
1-8. Replacing the Battery
The lithium battery for clock is mounted on the D2 board.
c
When replacing the part, be sure to use the specified one
below.
Replacement with a part other than the specified part will
result in fire hazards and electric hazards.
3. Frame lock during two-screen display
During two-screen display, the image on the main screen
or left screen is frame-locked. The other image is not
frame-locked. Therefore, the display below may appear
when the vertical sync frequencies of both signals differ.
. Flicker occurs remarkably.
. Movement does not become smooth during motion
picture display.
Replacement part
Part name: Lithium battery (CR1220)
Part No.: ! 1-756-157-11
Replacing procedure
Refer to Section 1-5-2.
1-9. Performance and Specifications of
This Unit
1. Wide zoom
. No screen adjustment can be performed when the wide
zoom mode is selected.
→ Set wide switching to another mode so as to perform
screen adjustment and then switch the mode to the
wide zoom mode.
. The wide zoom mode can be selected only for an RGB
signal in which the component and composite signals
and RGB mode during one-screen display are set to
“DTV”.
In the RGB signal in which the wide zoom mode is set,
wide switching is also set to the full mode when the
RGB mode is switched from “DTV” to “PC”.
. The viewing of an image in which the wide zoom mode
is set may vary depending on the setting of a signal
format or cinema drive and the setting of an RGB mode.
In the cases described above, the trouble can be reduced by
making the vertical sync frequencies of both signals same
as each other.
1-10. Unleaded Solder
Boards requiring use of unleaded solder are printed with a
lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come
printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
m
. Be sure to use the unleaded solder for the printed circuit
board printed with the lead free mark.
. The unleaded solder melts at a temperature about 40 dC
higher than the ordinary solder, therefore, it is recommended to use the soldering iron having a temperature
regulator.
. The ordinary soldering iron can be used but the iron tip
has to be applied to the solder joint for a slightly longer
time. The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful.
2. Flicker of interlace signal
. Flicker occurs when the RGB mode of an RGB signal is
set to “PC”.
→ Set the RGB mode to “DTV”.
. During two-screen display, flicker occurs when the
vertical resolution of the displayed image becomes less
than a half. In a motion picture signal, however, the
flicker causes no problem during operation.
1-16
FWD-42LX1
1-11. 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 –
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.
1)
VM1296
FWD-42LX1
1-17
Section 2
Electrical Alignment
n
Be sure to perform adjustment in the service mode when making the repairs below.
Contents of repair Adjustment item
Repair related to picture quality AD Calibration Adjustment (Refer to Section 2-2-7.)
White Balance Adjustment (Refer to Section 2-2-6.)
When the panel module is replaced White Balance Adjustment (Refer to Section 2-2-6.)
When the D2 or V board is replaced AD Calibration Adjustment (Refer to Section 2-2-7.)
White Balance Adjustment (Refer to Section 2-2-6.)
2-1. Required Equipment
. VG (Programmable video signal generator)
VG-828 or the equivalent
. Remote commander RM-980 (Supplied for this unit)
. Chromaticity meter
2-2. Electric Adjustment in Service
Mode
Electric adjustment is performed using a remote
commander (RM-980) supplied for this unit.
2-2-1. Service Mode
In addition to the ordinary user menu, “Service Mode” is
displayed when this unit is put into the service mode.
“Service Mode” is used for electric adjustment.
Start
To enter the service mode using RM-980, press the
[DISPLAY] → [5] → [VOL+], and [POWER|ON] keys
sequentially with this unit put into the standby state.
Cancellation
To cancel the service mode, put the unit into the standby
state again using a “STBY” key or turn off the power.
Viewing the screen
Service Mode
←
Picture Mode
Adjust Picture
Adjust Sound
Vivid/Standard Save
White Balance
AD Calibration
Factory Reset
Option Switch
1
2
3
4
5
6
7
8
1 Change in Picture Mode (Refer to Section 2-2-2.)
2 Picture quality adjustment (Refer to Section 2-2-3.)
3 Sound quality adjustment (Refer to Section 2-2-4.)
4 Change in initial values of Adjust Picture and Adjust
Sound (Refer to Section 2-2-5.)
5 White balance adjustment (Refer to Section 2-2-6.)
6 AD calibration adjustment (Refer to Section 2-2-7.)
7 Reset to factory-setting value
(Refer to Section 2-2-8.)
8 Special functions (Refer to Section 2-2-9.)
Commander function in service mode
Like user adjustment, six keys ([MENU], [ENTER], [&],
[*], [(], and [)]) are used for basic operation.
Other keys can also be operated in the same way as during
user adjustment.
2-2-2. Picture Mode
FWD-42LX1
Changes the picture mode as in the ordinary operation.
2-1
2-2-3. Adjust Picture
(Picture quality adjustment)
Adjusts the picture quality.
Unlike ordinary operation, adjustment can be performed
even if the picture quality mode is “Vivid” and “Standard”.
2-2-4. Adjust Sound
(Sound quality adjustment)
Adjusts the sound quality.
Unlike ordinary operation, adjustment can be performed
even if the picture quality mode is “Vivid” and “Standard”.
2-2-5. Vivid/Standard Save
3. Start the service mode, select “Picture Mode” and then
“User1” by “Adjust Picture”, and set the items below.
n
After adjustment is completed, write down the setting
value before change so as to return the setting value of
“User1” to the former value.
Backlight: 50
Contrast: 50
Brightness: 75
Chroma: 50
Phase: 50
Noise Reduct.: Off
Dynamic Picture: Off
Color Correct: Off
Gamma Correct: Mid
Power Saving: Standard
This is a “Vivid/Standard” mode.
Saves the value, obtained when “Adjust Picture/Adjust
Sound” is changed and adjusted, to the factory-setting
value.
“Adjust Picture” must be saved for each entry.
The adjustment value of “Adjust Sound” is copied to all
entries once it is saved.
Execution (ENTER) is done after “Cancel” is changed to
“OK”.
2-2-6. White Balance Adjustment
n
To correctly adjust the white balance, perform aging in the
aging mode for 30 minutes before adjustment.
(Refer to Section 2-2-9.)
1. Connect this unit and a signal generator to which DVI
can be output.
2. Enter a full white screen of 70% to this unit.
Select DVI for input switching.
4. Select “White Balance”, “Color Temp”, and then
“Cool” by “PICTURE/SOUND CONTROL” in a
service mode menu. (Adjust color temperature “Cool”.)
←
R Drive: 100
G Drive: 100
B Drive: 100
R BackGround: 100
G BackGround: 100
B BackGround: 100
5. Set the DVI input to a full white screen of 70%.
6. Using a chromaticity meter, adjust so that “G Drive”
and “B Drive” satisfy the values below while
monitoring the measurement value.
“R Drive” is usually fixed to “100”.
. R Drive (red gain adjustment):
Adjustment range: 0 to 100
. G Drive (green gain adjustment):
Adjustment range: 0 to 100
. B Drive (blue gain adjustment):
Adjustment range: 0 to 100
Color Tolerance
temperature
Cool Neutral Warm
Specifications 11000K 9300K 6500K
x 0.276 0.285 0.314 0.9JND
y 0.282 0.294 0.324
2-2
7. Set the DVI input to a full white screen of 20%.
FWD-42LX1
8. Adjust “R Background”, “G Background”, and “B
Background” so that the values in step 6 are satisfied.
. R BackGround (red brightness adjustment):
Adjustment range: 0 to 255
. G BackGround (green brightness adjustment):
Adjustment range: 0 to 255
. B BackGround (blue brightness adjustment):
Adjustment range: 0 to 255
9. Adjust steps 6 to 8 repeatedly so that the specified
values in step 3 are satisfied on a full white screen of
70% and 20% while making tracking.
10. Select “White Balance”, “Color Temp”, and then
“Neutral” by “PICTURE/SOUND CONTROL” in a
service mode menu. (Adjust color temperature “Neutral”.)
11. Perform the adjustment in steps 5 to 9.
12. Select "White Balance”, “Color Temp”, and then
“Warm” by “PICTURE/SOUND CONTROL” in a
service mode menu. (Adjust color temperature “Warm”.)
13. Perform the adjustment in steps 5 to 9.
NTSC/PAL
Adjusts NTSC/PAL signal calibration.
..
. NTSC/PAL
..
←
Composite Cal.
Y/C Cal.
Compornent Cal.
. Composite Cal.
Adjusts the Composite signal.
. Y/C Cal.
Adjusts the Y/C signal.
. Component Cal.
Adjusts the Component signal.
14. After adjustment is completed, return the setting value
of “Adjust Picture” to the former value (value written
down in step 3) and exit the menu.
2-2-7. AD Calibration Adjustment
This unit has two slots (OPTION1 and OPTION2). AD
calibration adjustment is required for each input. Install
BKM-FW10/FW11 in the slot to be adjusted as required
and adjust it.
n
To correctly adjust the AD caribration, perform aging in
the aging mode for 30 minutes before adjustment.
(Refer to Section 2-2-9.)
AD calibration start-up screen
←
NTSC/PAL
SECAM
Analog RGB
AD Service Save
..
. Composite Cal.
..
Menu configuration
NTSC/PAL → Composite Cal.
←
Auto Cal.
Manual Control
. Auto Cal.
Performs the auto adjustment.
. Manual Control
Performs the manual adjustment.
n
The same screen is displayed in “Y/C Cal” and
“Component Cal”.
FWD-42LX1
2-3
..
. Auto Cal.
..
Menu configuration
NTSC/PAL → Composite Cal. → Auto Cal.
SECAM
Adjusts the calibration of SECAM signal.
←
Auto Cal.
Target Y Cont.
Target Color
. Auto Cal.
Performs the auto adjustment.
After changing from “Cancel” to “OK”, press the
“ENTER” key.
. Target Y Cont.
Sets the threshold value of Y of the auto adjustment.
Setting range: 2,000 to 4,000
. Target Color
Sets the threshold value of C of the auto adjustment.
Setting range: 2,000 to 4,000
..
. Manual Control
..
Menu configuration
NTSC/PAL → Composite Cal. → Manual Control
..
. SECAM
..
←
Composite Cal.
Y/C Cal.
. Composite Cal.
Adjusts the Composite signal.
. Y/C Cal.
Adjusts the Y/C signal.
..
. Composite Cal.
..
Menu configuration
SECAM → Composite Cal.
←
Auto Cal.
Manual Control
←
Y Contrast: 230
C Level: 180
. Y Contrast
Adjusts the Y level.
Adjustment range: 0 to 255
. C Level
Adjusts the C level.
Adjustment range: 0 to 255
. Auto Cal.
Performs the auto adjustment.
. Manual Control
Performs the manual adjustment.
m
. The same screen is displayed in Y/C Cal.
. The operations of Auto Cal and Manual Control are the
same as NTSC/PAL.
2-4
FWD-42LX1
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