Sony LMD-2041W Schematic
LCD MONITOR
LMD-2041W
SERVICE MANUAL
1st Edition
!警告
このマニュアルは，サービス専用です。
お客様が，このマニュアルに記載された設置や保守，点検，修理などを行うと感電や火災，
人身事故につながることがあります。
危険をさけるため，サービストレーニングを受けた技術者のみご使用ください。
! WARNING
This manual is intended for qualifi ed service personnel only.
To reduce the risk of electric shock, fi re or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualifi ed to do so. Refer all servicing to
qualifi ed service personnel.
! WARNUNG
Die Anleitung ist nur für qualifi ziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifi ziertem 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. Afi n
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 qualifi é pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
LMD-2041W
警告
万一，異常が起きた際に，お客様が電源を切ることがで
きるように，設置の際には，機器近くの固定配線内に専
用遮断装置を設けるか，機器使用中に，容易に抜き差し
できるコンセントに電源プラグを接続してください。
本機をラックに設置するとき
熱の適切な排気・発散を得るために，ラックと本機の
間には，以下の空間を確保してください。
.上面 4cm 以上
.後面 10cm 以上
WARNING
When installing the unit, incorporate a readily accessible
disconnect device in the fi xed wiring, or connect the
power cord to a socket-outlet which must be provided
near the unit and easily accessible, so that the user can
turn off the power in case a fault should occur.
WARNUNG
Beim Einbau des Geräts ist daher im Festkabel ein
leicht zugänglicher Unterbrecher einzufügen, oder
das Netzkabel muß mit einer in der Nähe des Geräts
befi ndlichen, leicht zugänglichen Wandsteckdose
verbunden werden, damit sich bei einer Funktionsstörung
die Stromversorgung zum Gerät jederzeit unterbrechen
läßt.
安全のために，周辺機器を接続する際は，過大電圧を持
つ可能性があるコネクターを以下のポートに接続しない
でください。
: PARALLEL REMOTE コネクター
: SERIAL REMOTE コネクター
上記のポートについては本書の指示に従ってください。
For safety, do not connect the connector for peripheral device wiring that might have excessive voltage to the following ports.
: PARALLEL REMOTE connector
: SERIAL REMOTE connector
Follow the instructions for the above port.
Attention-when the product is installed in Rack:
1. Prevention against overloading of branch circuit
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
make sure that the rack does not overload the supply
circuit.
2. Providing protective earth
When this product is installed in a rack and is
supplied power from an outlet on the rack, please
confi rm that the outlet is provided with a suitable
protective earth connection.
3. Internal air ambient temperature of the rack
When this product is installed in a rack, please make
sure that the internal air ambient temperature of the
rack is within the specifi ed limit of this product.
4. Prevention against achieving hazardous
condition due to uneven mechanical loading
When this product is installed in a rack, please
make sure that the rack does not achieve hazardous
condition due to uneven mechanical loading.
5. Install the equipment while taking the operating
temperature of the equipment into consideration
For the operating temperature of the equipment, refer
to the specifi cations of the Operating Instructions
6. When performing the installation, keep the following space away from walls in order to obtain
proper exhaust and radiation of heat.
Top: 4 cm (1.6 inches) or more
Rear: 10 cm (4 inches) or more
.
LMD-2041W
1 (P)
Table of Contents
Manual Structure
Purpose of this manual ............................................................ 3 (E)
Related manuals ...................................................................... 3 (E)
Trademarks .............................................................................. 3 (E)
1. Service Overview
1-1. Appearance Figure ....................................................1-1 (E)
1-2. Board Location ..........................................................1-1 (E)
1-3. Disassembly ..............................................................1-2 (E)
1-3-1. Rear Cover ....................................................... 1-2 (E)
1-3-2. DC Fan .............................................................1-3 (E)
1-3-3. BI Board ........................................................... 1-4 (E)
1-3-4. G1 Board .......................................................... 1-5 (E)
1-3-5. G2 Board .......................................................... 1-6 (E)
1-3-6. G3 Board .......................................................... 1-7 (E)
1-3-7. QB Board ......................................................... 1-8 (E)
1-3-8. Bezel Assembly................................................1-9 (E)
1-3-9. H1 Board and X Board ..................................1-10 (E)
1-3-10. H2 Board and Speaker ................................... 1-11 (E)
1-3-11. LCD Panel......................................................1-12 (E)
1-4. Software Update ......................................................1-13 (E)
1-4-1. System Software ............................................1-13 (E)
1-4-2. FPGA Software .............................................. 1-16 (E)
1-5. Lead-free Solder ......................................................1-25 (E)
1-6. Circuit Description .................................................. 1-26 (E)
1-6-1. G1 Board ........................................................ 1-26 (E)
1-6-2. G2 Board ........................................................ 1-26 (E)
1-6-3. G3 Board ........................................................ 1-26 (E)
1-6-4. QB Board ....................................................... 1-26 (E)
1-6-5. BI Board ......................................................... 1-26 (E)
1-6-6. H1 Board ........................................................ 1-26 (E)
1-6-7. H2 Board ........................................................ 1-26 (E)
1-6-8. X Board .......................................................... 1-26 (E)
3. Troubleshooting
3-1. Backlight Does Not Light .........................................3-1 (E)
3-2. System Does Not Start ..............................................3-2 (E)
3-3. Control Operation of This Unit Is Abnormal ............3-2 (E)
3-4. Image Is Abnormal ....................................................3-3 (E)
3-5. TALLY Lamp Is Not Lit ............................................ 3-3 (E)
3-6. Fan Is Abnormal ........................................................3-4 (E)
4. Spare Parts
4-1. Notes on Repair Parts ...................................................... 4-1
4-2. Exploded Views ...............................................................4-2
4-3. Packing Materials & Supplied Accessories ..................... 4-6
5. Block Diagrams
Overall ............................................................................. 5-1
6. Frame Wiring
Frame Wiring...................................................................6-1
2. Electrical Alignments
2-1. Preparation ................................................................2-1 (E)
2-2. White Balance Adjustment ........................................ 2-1 (E)
2-3. A/D Adjustment (COMPOSITE) .............................. 2-2 (E)
LMD-2041W
1 (E)
Purpose of this manual
Related manuals
Trademarks
Manual Structure
This manual is the Service Manual of the LCD Monitor LMD-2041W.
This manual contains the service overview, electrical alignments, troubleshooting,
spare parts, block diagrams, and frame wiring.
The service of this unit is basically performed by the replacement of board.
Therefore, the schematic diagram, board layout and electrical parts list are not
contained.
In addition to this Service Manual the following manual is provided.
. “Operating Instructions” (supplied with this unit)
This manual is necessary for application and operation of this unit.
Trademarks and registered trademarks used in this manual are as follows.
. Ethernet is a registered trademark of Xerox corporation.
Other system names, product names, and company names appearing in this manual
are trademarks or registered trademarks of their respective holders.
LMD-2041W
3 (E)
1-1. Appearance Figure
Section 1
Service Overview
1-2. Board Location
G1 board
G3 board
X board
QB board
G2 board
H2 board
BI board
H1 board
LMD-2041W
1-1 (E)
1-3. Disassembly
m
. In this section, remove parts in the order of numbers shown in the fi gure.
. When removing/installing the cabinet and replacing the board, place the unit on the conductive cushion.
1-3-1. Rear Cover
5 Two screws
(B4 x 10)
9 Eleven screws
(3 x 6)
Upper side
7 Two screws
(3 x 6)
6 Two screws
(B4 x 10)
8 VESA bracket
0 Screw
(3 x 6)
!- Rear cover
3 Three screws
(B3 x 8)
1-2 (E)
Conductive cushion
4 Stand (*)
1 Three screws
(B3 x 8)
2 Stand (*)
*: Supplied with this unit
LMD-2041W
1-3-2. DC Fan
. Remove the rear cover. (Refer to Section 1-3-1.)
9 Two screws
(P3 x 20)
5 DC fan
2 Two screws
(PWH3 x 6)
3 Fan bracket
1 Harness
Upper side
4 Two screws
(P3 x 20)
J5
G3 board
7 Two screws
(PWH3 x 6)
8 Fan bracket
6 Harness
J1
0 DC fan
Conductive cushion
LMD-2041W
1-3 (E)
1-3-3. BI Board
. Remove the rear cover. (Refer to Section 1-3-1.)
2 Two harnesses
Upper side
1 Harness
J1
J4
J2
3 Two screws
(PWH3 x 6)
4 BI board
Conductive cushion
1-4 (E)
LMD-2041W
1-3-4. G1 Board
. Remove the rear cover. (Refer to Section 1-3-1.)
3 Three harnesses
1 Harness
5 G1 board
Upper side
2 Two harnesses
CN702
J52
4 Six screws
(PWH3 x 6)
CN601
CN701
CN703
J51
LMD-2041W
Conductive cushion
1-5 (E)
1-3-5. G2 Board
. Remove the rear cover. (Refer to Section 1-3-1.)
1 Harness
3 Two screws
(PWH3 x 6)
Upper side
CN801
4 G2 board
CN802
2 Flexible flat cable
Conductive cushion
1-6 (E)
LMD-2041W
1-3-6. G3 Board
. Remove the rear cover. (Refer to Section 1-3-1.)
1 Two harnesses
J6
2 Harness
Upper side
J1
J5
J2
3 Two screws
(PWH3 x 6)
4 G3 board
2 Harness
LMD-2041W
Conductive cushion
1-7 (E)
1-3-7. QB Board
. Remove the rear cover. (Refer to Section 1-3-1.)
7 QB board
J20J21 J14 J22 J7
1 Four screws
(PWH3 x 6)
6 Five screws
(PWH3 x 6)
J17
J9
J19
J18
2 QB shield assembly
3 Five harnesses
8 Two cushions
7 QB board
When removing the LVDS cable,
remove it in the direction of the
arrow C while holding the two
hooks in the direction of the
arrows A and B.
Hook
4 LVDS cable
A
C
4 LVDS cable
5 Three harnesses
B
Hook
Upper side
Conductive cushion
1-8 (E)
LMD-2041W
Loading...