Samsung T260HD - SyncMaster - 25.5" LCD Monitor User manual

LCD-Monitor
Chassis : LS26TDV / LS24TDV
Model : T260HD / T240HD
SERVICEManual
TFT-LCD Monitor Contens
T260HD / T240HD
Refer to the service manual in the GSPN (see the rear cover) for the more information.
1. Precautions
2. Product specications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram

Contents
1. Precautions.............................................................................................................. 1-1
1-1. Safety Precautions ......................................................................................................... 1-1
1-2. Servicing Precautions..................................................................................................... 1-2
1-3. Static Electricity Precautions .......................................................................................... 1-2
1-4. Installation Precautions .................................................................................................. 1-3
2. Product specications............................................................................................ 2-1
2-1. Feature & Specications................................................................................................. 2-1
2-2. Spec Comparison to the Old Models.............................................................................. 2-3
2-3. Accessories .................................................................................................................... 2-4
3. Disassembly and Assembly ................................................................................... 3-1
3-1. Disassembly ................................................................................................................... 3-1
4. Troubleshooting ...................................................................................................... 4-1
4-1. First Checklist for Troubleshooting ................................................................................ 4-1
4-2. No Power........................................................................................................................ 4-2
4-3. No Video (Analog PC) ................................................................................................... 4-4
4-4. No Video (Digital-HDMI) ................................................................................................. 4-7
4-5. No Picture (Tuner_CVBS) ............................................................................................ 4-10
4-6. No Picture (Tuner_DTV) ............................................................................................... 4-13
4-7. No Sound...................................................................................................................... 4-16
4-8. Faults and Corrective Actions....................................................................................... 4-19
4-9. Adjustment.................................................................................................................... 4-20
4-10. How to Access Service Mode ..................................................................................... 4-20
4-11. Service Adjustment ..................................................................................................... 4-21
4-12. Software Upgrade....................................................................................................... 4-23
5. Exploded View & Part List ...................................................................................... 5-1
5-1. Exploded View (260HD) ................................................................................................. 5-1
5-2. Parts List (T260HD)........................................................................................................ 5-3
5-3. Exploded View (T240HD) ............................................................................................... 5-6
5-4. Parts List (T240HD)........................................................................................................ 5-8
6. Wiring Diagram........................................................................................................ 6-1
6-1. Wiring Diagram - Main Board ......................................................................................... 6-1
6-2. Wiring Diagram - IP Board.............................................................................................. 6-2
6-3. Connector Functions ...................................................................................................... 6-3
6-4. Cables ............................................................................................................................ 6-3

GSPN (Global Service Partner Network)
Area Web Site
North America http://service.samsungportal.com
Latin America http://latin.samsungportal.com
CIS http://cis.samsungportal.com
Europe http://europe.samsungportal.com
China http://china.samsungportal.com
Asia http://asia.samsungportal.com
Mideast & Africa http://mea.samsungportal.com
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© 2009 Samsung Electronics Co.,Ltd.
All rights reserved.
Printed in Korea
P/N: BN82-00605A-00

3-1
3. Disassembly and Assembly
3. Disassembly and Assembly
This section describes the disassembly and reassembly sequences for this monitor.
Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them.
3-1. Disassembly
Caution: 1. Turn the monitor off before beginning the disassembly process.
2. When disassembling the monitor, do not use any metal tools except for the provided jig.
3. Remove the signal cable and the power cord before beginning the disassembly.
Description Photo Screws
1. Place monitor face down on cushioned table.
Remove Stand, then remove 4 marked screws
from the rear cover.
Caution : If you do not tilt the stand and use too
much force to remove it, the connection
pin may break.

3-2
3. Disassembly and Assembly
Description Photo Screws
2. Remove the cover and the LCD panel using the
provided jig on both grooves at the bottom.
Caution : Remove the cover and the LCD panel
using the provided jig on both grooves
at the bottom.
If you disassemble the product with
only one side opened, it may be
damaged.
3. Insertaatscrewdriverintothegrooveandthen
lift up and remove the cover.

3-3
3. Disassembly and Assembly
Description Photo Screws
4. After remove COVER-REAR, then disconnect
SPEAKER , FUNCTION wire.
5. Disconnect LVDS cable from panel.

3-4
3. Disassembly and Assembly
Description Photo Screws
6. After disconnecting SHIELD-LAMP of left side,
disassemble lamp wire between panel and IP
Board.
Caution : When removing the SHIELD-LAMP, do
not remove the GASKET-SHEET from
the SHIELD-LAMP.
If the GASKET-SHEET is damaged,
you will not be able to receive free
service.
Shield Lamp
GASKET-SHEET
7. Remove 8 marked SCREW of left picture.
Disconnect IP board.
※Reassembly procedures are in the reverse order
of disassembly procedures.

3-5
3. Disassembly and Assembly
Description Photo Screws
8. Remove the LCD panel.
9. Remove the IR module by tilting the left snap to
the right.
10. Remove the LED module by sliding the snap
designatedintherightgurebackwards.
11. Remove the holders from the four (4) snaps
designatedintherightgureusingtheprovided
jig.

3-6
3. Disassembly and Assembly
Description Photo Screws
12. Remove the two (2) connectors.
Caution : Servicing is not supported for the PCB.
▶Assembly
13. The assembly is in the reverse order of the
disassembly.
14. Connect the disassembled snap and the LED
module again.
15.Fixtheconnectingwirewithlamenttape
Caution : If the wire is damaged when closing the
cover, an operating error may occur.
Therefore, make sure to close the
coverafterxingitwithlamenttape.
lamenttape
※ The assembly is in the reverse order of disassembly.

5-1
5. Exploded View & Part List
5. Exploded View & Part List
5-1. LS26TDVSUV/EN Exploded View (260HD)
T0003
M0215
M0014
M0006 M0523
M0013
M0174
BN63-04446A
STD
M0027
BN63-04852C

5-2
5. Exploded View & Part List
5-1-1. LS26TDVSUV/EN Parts List (T260HD)
Location No. Code No. Description & Specication Q’ty SA/SNA Remark
M0006 BN96-07745J ASSY SHIELD P-COVER;LS26TD(MFM),EUROPE,S 1 S.N.A
M0013 BN96-07744A ASSY COVER P-REAR;LS26TD(MFM),Europe,PMM 1 S.A
M0014 BN94-02507X ASSY PCB MAIN;LS26TDVSUV/EN 1 S.N.A
M0027 BN96-07604A ASSY STAND P-BASE;T260,PMMA+ABS HB,RD02, 1 S.A
M0174 BN44-00226A IP BOARD;IP-58155A(M),T 26” MFM,1.4 ~2.8 1 S.A
M0215 BN07-00722A LCD-PANEL;M260J3-L01-C2 1 S.A
M0523 BN96-07409A ASSY COVER P-JACK;LS22TD,PC+ABS,5V,BK23, 1 S.A
STD BN96-07605D ASSY STAND P-BODY;LS24TD(MFM),ABS HB,BK2 1 S.A
T0003 BN96-07743A ASSY COVER P-FRONT;LS26TD(T260HD),PMMA+A 1 S.A
BN63-04446A SHIELD-LAMP;T(25.5W MFM ),SPTE,T 0.3 1 S.N.A
BN63-04852C GASKET-TCO SHIELD;T-MFM,Polyester+Cu+Ni+ 1 S.N.A

5-3
5. Exploded View & Part List
5-2. LS26TDVSUV/EN Parts List (T260HD)
Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE)
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
LS26TDVSUV/
EN T260HD,WUM2/S26A1-LTD,26,LCD-MO,NETHERLA
0.1 M0001 BN90-01678A ASSY COVER FRONT;LS26TW(T260),ROSE BLACK 1 S.N.A
..2 T0175 BN96-06823C ASSY SPEAKER P;16ohm,T-project,MFM,3W,11 1 S.A
0.1 M0002 BN90-01679A ASSY COVER REAR;LS26TW 1 S.N.A
..2 M0013 BN96-07744A ASSY COVER P-REAR;LS26TD(MFM),Europe,PMM 1 S.A
...3 C/F+H/BOSS 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW 4 S.N.A
...3 BN61-03947A GUIDE-CONTROL;T200D / T220D / T240D / T2 2 S.N.A
...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.05,680mm,20 0.6 S.N.A
...3 M0006 BN63-04445A COVER-REAR;T260HD,PMMA ABS,HB,BK23,H/GLO 1 S.N.A
...3 T0071 BN64-00860A INLAY-TERMINAL;T220D,PS SHEET,T0.3,(Euro 1 S.N.A
...3 T0530 BN96-08056A ASSY COVER P-DOOR CONTROL;LS26TD,PMMA AB 1 S.A
....4 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.05,680mm,20 0.07 S.N.A
....4 T0151 BN64-00858A DOOR-CONTROL;T260HD,PMMA ABS HB,BK23,H/G 1 S.N.A
..2 C/F+C/R 6003-001086 SCREW-TAPTYPE;BH,+,-,B,M3,L12,ZPC(BLK),S 4 S.A
0.1 M0017 BN91-03919J ASSY CHASSIS;LS26TDVSUV/EN 1 S.A
..2 IP/BO+SH/C 6003-001023 SCREW-TAPTYPE;PWH,+,-,B,M3,L10,ZPC(WHT), 3 S.N.A
..2 MAIN+SH/
CO 6003-001023 SCREW-TAPTYPE;PWH,+,-,B,M3,L10,ZPC(WHT), 4 S.N.A
..2 IP/BO+SH/C 6003-001439 SCREW-TAPTYPE;BH,+,S,M4,L8,ZPC(WHT),SWRC 1 S.N.A
..2 T0562 6046-001014 STAND OFF;#4-40,L6,NI PLT,C3601 4 S.N.A
..2 M0174 BN44-00226A IP BOARD;IP-58155A(M),T 26” MFM,1.4 ~2.8 1 S.A
..2 CCMM1 BN73-00125A SILICON/RUBBER;SPL07,SILICON+ALUMINA,W20 1 S.N.A
..2 M0014 BN94-02507X ASSY PCB MAIN;LS26TDVSUV/EN 1 S.N.A
...3 CIS3 BN40-00137A TUNER;DNOQ403SH151A(S),DNOQ403SH151A(S), 1 S.A
...3 M0014 BN94-02792D ASSY PCB MISC-MAIN;LS26TDVSUV/EN,BN94-02 1 S.N.A
...3 TUNER_
GASK AA63-01388A GASKET-EMI,SPONGE;SP-P300M,Conductive Fa 1 S.A
..2 M0230 BN96-07252Q ASSY CABLE P-FFC;T-MFM 26,FFC Cable,FC64 1 S.A
..2 M0006 BN96-07745J ASSY SHIELD P-COVER;LS26TD(MFM),EUROPE,S 1 S.N.A
...3 M0162 6502-001067 CABLE CLAMP;DAFC-1300,ID2.2,T5.2,NYLIN6/ 1 S.N.A
...3 T0073 AA63-00822A GASKET-EMI;71TSVK-15-5-15-13,Conductive 1 S.N.A
...3 M0131 BH63-00104A GASKET;POSEIDON,CONDUCTIVE FABRIC,2MM,10 3 S.N.A
...3 BN61-02429C STUD-PEM;PNB,M2.8,D7,L10,ZPC(SIL),SUM24L 2 S.N.A
...3 BN61-02429D STUD-PEM;PNB,M2.8,D7,L20,ZPC(SIL),SUM24L 2 S.N.A
...3 BN61-02429F STUD-PEM;PNB,M2.8,D7,L28,ZPC(SIL),SUM24L 1 S.N.A
...3 M0114 BN61-02500A HOLDER-WIRE;NYLON6.6,NATURAL 1 S.N.A
...3 BN61-03944A BRACKET-STAND FRAME;T260HD,HGI,T 2.3 1 S.N.A
...3 BN61-04216A SPRING ETC-STAND;LS26TW,SUS 304,T0.3,SIM 1 S.N.A
...3 M0131 BN63-00515A GASKET;MB15ES,Conductive Fabric,4mm,10mm 1 S.N.A
...3 M0131 BN63-00995A GASKET;GY17MS,Conductive Fabric,4MM,15MM 1 S.N.A
...3 M0107 BN63-04448A SHIELD-COVER;T(25.5W MFM ),SECC,T 0.8 1 S.N.A
...3 T0073 BN63-04800A GASKET-EMI;T-MFM,Fabric Type,1.5mm,20mm, 1 S.N.A
..2 CCMM1 BN73-00152A SILICON/RUBBER;LNT4661FX/XAA,FILLER,19x1 2 S.N.A

5-4
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
0.1 M0113 BN92-03452N ASSY P/MATERIAL;LS26TDDSUV/EN 1 S.N.A
..2 T0081 HA83-00057B LP-TAPE-CELLULOSE;,HA02-030010,T0,046,W7 1.68 S.N.A
..2 T0524 6902-000996 BAG PE;HDPE/NITRON,T0.015/T0.5,W800,L600 1 S.N.A
..2 BN81-02321A BAG-AIR;LIGHT FLEX PLASTIK,PE WHITE,L120 0.006 S.N.A
..2 BN69-03934A WRAP STRETCH FILM;All,HDPE,0.012,500,300 0.75 S.N.A
0.1 BN98-01249A ASSY K/D-SKD;LS26TDDSUV,HANIL_KIT,FRONT 1 S.N.A
..2 AA01-00004A FOIL;2000,2000,NTR,SEH 0.017 S.N.A
..2 M0027 BN96-07604A ASSY STAND P-BASE;T260,PMMA+ABS HB,RD02, 1 S.A
...3 6003-001001 SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SWRC 4 S.N.A
...3 M0963 BN61-00251A FOOT;GH17BS,RUBBER,T1.6 4 S.N.A
...3 CIS4 BN61-01717A HOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5) 1 S.N.A
...3 BN61-03914A BRACKET-STAND BOTTOM;T24W,SECC,T 0.8 1 S.N.A
...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.05,680mm,20 0.3 S.N.A
...3 T0004 BN63-04400A COVER-STAND BASE;T260,PMMA+ABS,HB,RD02,H 1 S.N.A
...3 M0412 BN63-04525A COVER-SWIVEL BASE;T260,HIPS,HB,BK07 1 S.N.A
...3 BN63-04526A COVER-SWIVEL RING;T260,POM,HB,BLK 1 S.N.A
...3 BN96-06529A ASSY HOLDER P-WIRE;MCKINLEY,ABS HB,BK23 1 S.N.A
....4 6902-000336 BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,-,-,-, 1 S.N.A
....4 M0114 BN61-03555A HOLDER-WIRE;MCKINLEY,ABS HB,BK26 1 S.N.A
...3 BN68-01519A MANUAL FLYER-QSG;COMM,SyncMaster,WW,Mojo 1 S.N.A
...3 T0524 6902-000109 BAG PE;HDPE,T0.015,W350,L430,TRP,28,2,4. 1 S.N.A
..2 STD BN96-07605D ASSY STAND P-BODY;LS24TD(MFM),ABS HB,BK2 1 S.A
...3 6003-000275 SCREW-TAPTYPE;BH,+,B,M3,L10,ZPC(BLK),SWR 6 S.N.A
...3 BN63-04413A COVER-STAND REAR;T240HD,PMMA+ABS,HB,BK23 1 S.N.A
...3 BN63-04414A COVER-STAND FRONT;T240HD,PMMA+ABS,HB,BK2 1 S.N.A
...3 T0054 BN96-07589B ASSY HINGE P;T260,SM50C T2.3 1 S.N.A
...3 T0524 6902-000956 BAG PE;HDPE/NITRON,T0.015/T0.5,W200,L200 1 S.N.A
..2 T0003 BN96-07743A ASSY COVER P-FRONT;LS26TD(T260HD),PMMA+A 1 S.A
...3 C/F+H/BOSS 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW 4 S.N.A
...3 M0960 BN61-03948A HOLDER-BOSS;T260,PMMA+ABS HB,WH15 1 S.N.A
...3 M0112 BN63-04444F COVER-FRONT;T260HD(Europe),PMMA+ABS,HB,R 1 S.N.A
...3 BN64-00843A KNOB-GUIDE;T220HD,PMMA ABS,HB,BK23,H/GLO 1 S.N.A
...3 T0022 BN64-00845A KNOB CONTROL;T220HD,PMMA ABS,HB,BK23,H/G 1 S.N.A
...3 M0145 BN96-07556C ASSY BOARD P-FUNCTION;T-MFM,CT5000-5800C 1 S.A
...3 BN81-01805B A/S-TAPE-FILAMENT;ELMATIT,T0.1,W12,L1200 0.18 S.N.A
...3 M0102 BN96-07569B ASSY BLU P;T220HD,A7-10040180-A0,WHITE,B 1 S.A
...3 CCM1 BN63-02183E COVER-SHEET;Rhcm,PE Vinyl,T0.05,750mm,20 1 S.N.A
..2 BN69-03934A WRAP STRETCH FILM;All,HDPE,0.012,500,300 1.99 S.N.A
0.1 M0003 BN92-04933B ASSY BOX;LS26TDVSUV/EN 1 S.N.A
..2 BN69-03824A BOX-SET;T26-MFM,CB,A-01,SW-55,W690,D555, 1 S.N.A
..2 BN96-02895A ASSY MISC P-01,HANDLE PACKING;ALL MODEL, 1 S.N.A
...3 M0103 BN66-00007A LEVER-TOP;ALL MODEL,LDPE,WHITE,5.8g 1 S.N.A
...3 M0102 BN66-00008A LEVER-BOTTOM;ALL MODEL,LDPE,WHITE,4.01g 1 S.N.A
0.1 M0107 BN91-02220K ASSY LCD-CTZ;LS26TDVSUV/EN 1 S.N.A
..2 M0215 BN07-00722A LCD-PANEL;M260J3-L01-C2 1 S.A
0.1 M0045 BN92-04824W ASSY ACCESSORY;LS26TDVSUV/EN 1 S.N.A
..2 M0045 BN96-10918A ASSY ACCESSORY;LS26TDVSUV/EN 1 S.N.A

5-5
5. Exploded View & Part List
Level Location No. Code No. Description & Specication Q’ty SA/SNA Remark
...3 BH68-00633B MANUAL FLYER-03,WARRANTY CARD;comm,Samsu 1 S.N.A
...3 BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* 1 S.N.A
...3 T0128 BN39-00061C CBF SIGNAL-STEREO;Mckinley,1,male,1.5m,B 1 S.A
...3 M9889 BN63-01798B CLOTH-CLEAN;cloth,180,200,sea blue,ToC 1 S.N.A
...3 BN68-00907D MANUAL FLYER-WEEE BATTERY;COMM,SAMSUNG,2 1 S.N.A
...3 M0215 BN96-11045A ASSY MANUAL P-IB+QSG;T200HD,T220HD,T240H 1 S.N.A
....4 BN59-00904A S/W DRIVER-00,IB;T220HD, T200HD,Europe,S 1 S.N.A
....4 BN68-02096A MANUAL FLYER-QSG;T200HD T220HD,SyncMaste 1 S.N.A
...3 T0091 HA83-00047A LP-TAPEACETATE;T0.1MM,W20MM,L200MM 0.1 S.N.A
...3 BN68-00907F MANUAL FLYER-00,WEE;comm,Samsung,23Lang, 1 S.N.A
...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,10 L 1 S.N.A
..2 T0268 3903-000042 CBF-POWER CORD;DT,EU,FP3/YES,IEC320 C13/ 1 S.A
..2 M0114 BN39-00244G CBF SIGNAL;D-sub cable,15P/15P,20276N,15 1 S.A
..2 T0238 BN68-01925E MANUAL FLYER-WARRANTY CARD;comm,Samsung, 1 S.N.A
..2 T0074 BN59-00865A REMOCON;DLP,CRT,TM940,EUROPE,39,92g 1 S.A
0.1 M0019 BN92-02414P ASSY LABEL;LS26TDV 1 S.N.A
0.1 M0112 BN91-02471K ASSY SHIELD;LS26TDV_MFM,TOC,EUROPE 1 S.N.A
..2 BN63-04446A SHIELD-LAMP;T(25.5W MFM ),SPTE,T 0.3 1 S.N.A
..2 BN63-04852C GASKET-TCO SHIELD;T-MFM,Polyester+Cu+Ni+ 1 S.N.A
..2 BN81-01805A A/S-TAPE FILAMENT;ELMATIT,T0.1,W49,L1200 0.05 S.N.A
..2 FUNCTION BN81-01805B A/S-TAPE-FILAMENT;ELMATIT,T0.1,W12,L1200 1 S.N.A
..2 LVDS BN81-01805B A/S-TAPE-FILAMENT;ELMATIT,T0.1,W12,L1200 1 S.N.A
..2 M0523 BN96-07409A ASSY COVER P-JACK;LS22TD,PC+ABS,5V,BK23, 1 S.A
...3 T0279 BN63-04402A COVER-JACK;T220D / T200D,PC+ABS,5V,BK23, 1 S.N.A
...3 T0578 BN64-00862A INLAY AV;T220HD,PS SHEET, T0.5 1 S.N.A

1-1
1. Precautions
1. Precautions
1-1. Safety Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as
electrical shock.
1-1-1. Warnings
For continued safety, do not attempt to modify the circuit board.
Disconnect the AC power and DC power jack before servicing.
1-1-2. Servicing the LCD Monitor
When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet.
It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of
this meter periodically.
1-1-3. Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks:
Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the
chassis and other metal parts in the monitor.
Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and
compartment covers or shields, isolation resistorcapacitor networks, mechanical insulators, etc.
Leakage Current Hot Check (Figure 1-1):
WARNING : 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 Publication UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit’s AC switch
rst in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit,
etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts.
The current measured should not exceed 0.5 milliamp.
Reverse the power-plug prongs in the AC outlet and repeat the test.
1-1-4. Product Safety Notices
Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual
inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage,
wattage, etc. Parts that have special safety characteristics are identied by on schematics and parts lists. A substitute
replacement that does not have the same safety characteristics as the recommended replacement part might create
shock, re and/or other hazards. Product safety is under review continuously and new instructions are issued whenever
appropriate.
1.
2.
1.
2.
1.
2.
3.
4.
DEVICE
UNDER
TEST
(READING SHOULD)
NOT BE ABOVE 0.5mA
LEAKAGE
CURRENT
TESTER
TEST ALL
EXPOSED METAL
SURFACES
2-WIRE CORD
*ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED) EARTH
GROUND Figure 1-1. Leakage Current Test Circuit

1-2
1. Precautions
1-2. Servicing Precautions
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of
this manual.
Note: If unforeseen circumstances create conict between the following servicing precautions and any of the
safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
Always unplug the unit’s AC power cord from the AC power source and disconnect the DC Power Jack before
attempting to:
(a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test
component in parallel with an electrolytic capacitor.
Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes
used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such
elements to their original position.
After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that
the area around the serviced part has not been damaged.
Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels,
input terminals and earphone jacks).
Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON.
Connect an insulation resistance meter (500 V) to theblades of the AC plug.
The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be
greater than 1 megohm.
Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead;
always remove the instrument’s ground lead last.
1-3. Static Electricity Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly
called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some eld-effect
transistors. The following techniques will reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your
body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard,
be sure to remove the wrist strap before applying power to the monitor.
After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent
accumulation of an electrostatic charge.
Do not use freon-propelled chemicals. These can generate electrical charges sufcient to damage ESDs.
Use only a grounded-tip soldering iron to solder or desolder ESDs.
Use only an anti-static solder removal device. Some solder removal devices not classied as “anti-static” can generate
electrical charges sufcient to damage ESDs.
Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs
are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive
materials.
Immediately before removing the protective material from the leads of a replacement ESD, touch the protective
material to the chassis or circuit assembly into which the device will be installed.
Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together,
or lifting your foot from a carpeted oor can generate enough static electricity to damage an ESD.
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1. Precautions
1-4. Installation Precautions
For safety reasons, more than two people are required for carrying the product.
Keep the power cord away from any heat emitting devices, as a melted covering may cause re or electric shock.
Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal
temperature may cause re.
Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed
to moisture. Otherwise, it may cause a re or electric shock.
Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check
the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause re or electric
shock.
Keep the antenna far away from any high-voltage cables and install it rmly. Contact with the highvoltage cable or the
antenna falling over may cause re or electric shock.
When installing the product, leave enough space (10cm) between the product and the wall for ventilation purposes.
A rise in temperature within the product may cause re.
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1. Precautions
Memo

2-1
2. Product specications
2. Product specications
2-1. Feature & Specications
Model T260HD / T240HD
Feature
Supreme Digital Interface & Networking
- With a built-in HD digital tuner, it supports HD broadcasting with no particular set-top box and provides simple
access with a single remote control.
Excellent Picture Quality
- DNIe technology provides life-like clear images.
Dynamic Contrast
- Automatically detects the input visual signal and adjusts to create optimum contrast.
SRS TruSurround XT
- SRS TruSurround XT provides a virtual Dolby surround system.
Convenience
-The TV utilizes the HDMI system to implement perfect digital sound and picture quality.
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Specications
Item
Description
T260HD T240HD
LCD Panel TFT-LCD Panel, RGB Vertical strip,
normaly White, 26-Inch viewable,
0.2865(H) X 0.2865(V)mm Pixel Pitch
TFT-LCD Panel, RGB Vertical strip,
normaly White, 24-Inch viewable,
0.270(H) X 0.270(V)mm Pixel Pitch
Scanning Frequency Horizontal : 30KHz ~ 81KHz(Automatic)
Vertical: 56Hz ~ 75Hz(Automatic)
Horizontal :30KHz ~ 81KHz(Automatic)
Vertical:56Hz ~ 75Hz(Automatic)
Display Colors 16.7 Million colors 16.7Million colors
Maximum resolution Horizontal: 1920pixels
Vertical: 1200pixels
Horizontal : 1920pixels
Vertical: 1200pixels
Input Signal Analog 0.7Vp-p±10% positive at
75Ω,internally terminated
Analog 0.7Vp-p±10% positive at
75Ω,internally terminated
Input Sync Signal Type: separate H/V,composite
Level : TTL Level
Type: separate H/V,composite
Level : TTL Level
Maximum Input Signal Clock
rate 154MHz 154MHz
Active Display
(Horizontal/Vertical) 550.08(H) X 343.8(V) 518.4(H) X 324.0(V)
AC power voltage &
Frequency AC 110 ~ 240V, 50 ~ 60 Hz AC110 ~ 240V, 50 ~ 60Hz
Power Consumption 57W(Typ.), 67 W(Max)<2W 55W(Typ.), 67 W(Max)<2W
Dimensions Set
(W x D x H)
610 x 502.5 x 245mm (After installation stand)
610 x 435 x 86.5mm (Without stand)
573 x 477 x 245mm (After installation stand)
573 x 409 x 87mm (Without stand)
Weight Set
(After installation Stand) 8.6kg 7.3kg
TV System Tuning Frequency Synthesize
System PAL, SECEM
Sound MONO, STEREO, NICAM

2-2
2. Product specications
Specications
Item
Description
T260HD T240HD
Environmental
Considerations
Operating Temperature: 50˚C ~ 104˚F(10˚C ~ 40˚C)
Operating Humidity : 10% ~ 80%
Storage Temperature: -4˚C ~ 113˚C(-20˚C ~ 45˚C)
Storage Humidity: 5% ~ 95%
Antenna Input 75Ω
Sound Characteristic -MAX Internal speaker Out : Right : 3W / Left : 3W
-BASS Control Range : -8 dB ~ + 8dB
-TREBLE Control Range : -8 dB ~ +8 dB
-Headphone Out : 10 mW MAX
-Output Frequency : RF : 80 Hz ~ 15 kHz
A/V : 80 Hz ~ 20 kHz