Westinghouse LTV-27w7 HD Service Manual

27”, 32” & 37” color lcd tv display

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Page 1 Westinghouse Digital Electronics www.westinghousedigital.com SE-SG-2704-0601 Santa Fe Springs, CA LTV-27w7 HD, LTV-32w6 HD and LTV-37w2 HD Service Guide 10/1/06...
Page 2 S E R V I C E G U I D E Model No.: LTV-27w7 HD LTV-32w6 HD LTV-37w2 HD 27”, 32” & 37” Color LCD TV Display...
Page 3: Table Of Contents
COLOR LCD TV DISPLAY Table of Contents 1. Precautions and Safety Notices ........... . 2 2.
Page 4: Precautions And Safety Notices
COLOR LCD TV DISPLAY 1. Precautions and Safety Notices Prior to using this manual, please ensure that you have carefully followed all the proce- dures outlined in the user manual for this product. • Read all of these instructions. • Save these instructions for later use.
Page 5: Specifications
COLOR LCD TV DISPLAY 2. Specifications 2.1 LTV-27w7 HD Specifications Item Specifications for LTV-27w7 HD Display Area 27" Viewable Diagonal 1366 x 768 Native Resolution 1280 x 1024, 1024 x 768, 848 x 480, 832 x 624 480i, 480P, 720P, 1080i...
Page 6: Ltv-32W6 Hd
COLOR LCD TV DISPLAY 2.2 LTV-32w6 HD Specifications Item Specifications for LTV-32w6 HD Display Area 32" Viewable Diagonal 1366 x 768 Native Resolution 1280 x 1024, 1024 x 768, 848 x 480, 832 x 624 480i, 480P, 720P, 1080i Aspect Ratio 16:9 Lamp Life 60,000 hrs...
Page 7: Ltv-37W2 Hd
COLOR LCD TV DISPLAY 2.3 LTV-37w2 HD Specifications Item Specifications for LTV-37w2 HD Display Area 37" Viewable Diagonal 1366 x 768 Native Resolution 1280 x 1024, 1024 x 768, 848 x 480, 832 x 624 480i, 480P, 720P, 1080i Aspect Ratio 16:9 Lamp Life 60,000 hrs...
Page 8: User Controls & Connectors
COLOR LCD TV DISPLAY 3. User Controls & Connectors 3.1 User Control Use the MENU on the right side of the LCD TV or on the remote control to initiate the On Screen Display (OSD). The OSD controls are defined in the following section. Control keys Speaker IR receiver...
Page 9: Connectors
COLOR LCD TV DISPLAY 3.2 Connectors 1. S-Video Input Connect to an external video device such as a digital cable/satellite receiver, VCR, DVD or video game system. 2. Video Input Connect the Composite Video to an external video device such as VCR, DVD and video game system.
Page 10: On-Screen Display Menu (Osd)
COLOR LCD TV DISPLAY 3.3 On-Screen Display Menu (OSD): All the functions can be adjusted either by the remote control or using the control keys on the right side of LCD TV. To display the OSD main menu, press the Menu button on the right side of front control keys of the LCD TV or the MENU key on the remote control.
Page 11 COLOR LCD TV DISPLAY DISPLAY SETTING: Function Name Function MAIN SOURCE Select main screen sources: “TV”,”HDTV”, ”VIDEO”, ”S-VIDEO”, ”YPbPr1”, ”YPbPr2”, “VGA”, “HDMI” PIP SOURCE Select sub screen sources ASPECT RATIO Select “STANDARD”, ”FILL” PIP MODE Select “OFF”, ”PIP”, ”PBP”, ”POP”. SWAP Swap main screen and sub-screen source.
Page 12 COLOR LCD TV DISPLAY AUDIO SETTING: Function Name Function BASS Bass adjustment TREBLE Treble adjustment BALANCE Balance adjustment Select STEREO, MONO, or SAP MUTE Select audio “OFF” or “ON” SPEAKER Select “internal”, “external”, or “Both” speakers AUDIO OUT Select SPDIF OUT for 2.1 channel or 5.1 channel RESET Select “NO”...
Page 13 COLOR LCD TV DISPLAY TV/HDTV SETTING: Function Name Function TV SYSTEM CABLE STD CABLE IRC ANTENNA AUTO SCAN Select “NO” or “YES” CHANNEL EDIT Select “ADD” or “DELETE” LOCAL TIME Select local time: “CANADA”, “EASTERN”, “CENTRAL”, “MOUNTAIN”, “PACIFIC”,”ALASKA”,“HAWAII”, “SAMOA”, “NEWFOUNDLAND” DAYLIGHT SAV Day light saving: On mode: “daylight saving “...
Page 14 COLOR LCD TV DISPLAY PARENTAL CONTROL: The parental controls feature prevents viewers from watching programs that are not age- appropriate, such as programs containing violence or adult language. Function Name Function PASSWORD The factory default password is “0000”. Use remote control to key in the number and enter the parental controls sub-menu.
Page 15 COLOR LCD TV DISPLAY GENERAL SETTING: Function Name Function TRANSPARENCY Set OSD transparency level MENU POSITION OSD horizontal/vertical position adjustment SYSTEM INFO Display input source, type and signal CLOSED CAPTION Turn the closed caption OFF or CC1, CC2, CC3, CC4, TEXT1, TEXT2, TEXT3, TEXT4 LANGUAGE OSD language selection SLEEP TIMER...
Page 16: Servicing Environment And Tools
COLOR LCD TV DISPLAY 4. Servicing Environment & Tools Servicing Environment This LCD TV should be used only with the power source type identified on the package and User’s Guide Service the LCD TV in a room with low humidity and free of dust. Place the LCD TV on a firm, level surface.
Page 17: Assembly/Disassembly Procedures
COLOR LCD TV DISPLAY 5. Assembly/Disassembly Stand Cover Plate 1. Remove base stand cover plate 2. Remove base stand (6 screws). 3. Remove rear cover (10 screws). 4. Remove top (4 screws) and bottom (4 screws) shields. Main Board Power Supply 5.
Page 18 COLOR LCD TV DISPLAY 1 Cable 8 Cables 7. Remove and replace main board (4 screws & 8. Remove and replace power supply (4 screws 8 cables). and 1 cable). www.westinghousedigital.com...
Page 19: Appendix A. Spare Parts List
COLOR LCD TV DISPLAY APPENDIX A. Spare Parts List LTV-27w7 HD PART NUMBER DESCRIPTION Power 991206224 BATTERY ZN-CHLORIDE 1.5V AAA 3090107601 AC POWER CORD 3P #18*3C L1800 BLK 4900214080 SMPS 100~132VAC 187.5W LT32B-2 PCBA 3368250200 BASE ASSY LT27GGN 43AAB W7VBA1LS...
Page 20 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Screws 3100300600 SCREW M M3*0.5*6 PAN C S+P S20C ZN 3100431600 SCREW M M3*0.5*16 PAN C S20C ZN BLK 3105051501 SCREW M #4-40*7 HEXH HEXI S18C NI 3105124700 SCREW M M4*0.7*16 FF C S18C ZN BLK NL 3105126600 SCREW M M4*0.7*6.5 FF C S18C NI NL 3105221000...
Page 21 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Mechanical (continued) 3460228700 BRACKET POWER EXTEND SECC 224*86*4*1 ZN 3460245101 BRACKET PANEL-MID-X240 SECC 401*400*52*1 3460252400 BRACKET D-SUB IO-L SECC 382*45.5*30*1 3460253500 BRACKET RIGHT-X240-HDMI SECC 328*47*36*1 3461261800 SHIELD UP-SHIELDING SPEC 225*119.7*44.7* 3461261900 SHIELD DOWN-SHIELDING SPEC 225*171.6*44* 3461265803 SHIELD INV SPEC 326.96*132.74*0.9*0.3 3613100302...
Page 22 COLOR LCD TV DISPLAY Spare Parts List LTV-32w6 HD PART NUMBER DESCRIPTION Power 3090107601 AC POWER CORD 3P #18*3C L1800 BLK 4900214080 SMPS 100~132VAC 187.5W LT32B-2 PCBA 5600600039 PWB ASSY MAIN BD LT32EGN 43AAB 5600600041 PWB ASSY IR BD LT32EGN 43AAB 5600600042 PWB ASSY FUNCTION KEY BD LT32EGN 43AAB 3368250300...
Page 23 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Screws (continued) 3109016100 SCREW T 3*1.27*8 FPH C S18C ZN YEL 3109020500 SCREW T 4*3.2*10 FLAT C S20C ZN YEL 3109028000 SCREW T 4*1.6*26 PAN C S18C ZN BLK 3109168700 SCREW T 3*2.7*6 FF C S18C ZN BLK Mechanical Parts 3360262102 CABINET BACK ABS 94V0 W2VRA1AT 433C...
Page 24 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Packing Materials 3500145801 END BLOCK EPS 575*264*197 3500145901 END BLOCK EPS 575*264*197 3500148801 END BLOCK EPS 885*263*210 3500955700 BAG PE 1040*880*0.3 3500972800 BAG PE 275*205 3517012301 CARTON KRAFT 896*274*812 3520130500 DRYER SILICA 80*60 3241191201 INSULATOR PC 94V0 161*13*0.43 BLK www.westinghousedigital.com...
Page 25 COLOR LCD TV DISPLAY Spare Parts List LTV-37w2 HD PART NUMBER DESCRIPTION Power 3080341501 CABLE SIGNAL RCA L200 BLK 3090107601 AC POWER CORD 3P #18*3C L1800 BLK 4900250180 SMPS 100~240VAC 214W DPS-214AP A PCBA 5600110519 PWB ASSY MAIN BD LT37CGN 43AAB 5600110520 PWB ASSY IR BD LT37CGN 43AAB 5600110521...
Page 26 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Accessory (continued) 3200958000 LABEL LOGO NICKEL 18mm T0.1 LT40ADN 43AA 3202011000 LABEL BARCODE PAPER 42*11 T0.05 3202815600 LABEL SPEC POLYESTER 119.5*59.5 T0.15 LT 3202815700 LABEL SPEC PAPER 165*25.4 T0.1 LT37CGN 4 3211048800 MYLAR FILM 880*520 T.1 3240959301 PAD RUBBER 20*4 GRAY 3261009500...
Page 27 COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION Mechanical (continued) 3460241700 BRACKET D-SUB-R SECC 249.7*56.5*16.7*1 3460241800 BRACKET BASE SECC 573*193*7*2 3460242001 BRACKET SUPPORT PANEL SECC 542.6*46.4*15 3460243400 BRACKET SOCKET SECC 63.5*17*19.2*1 3460259000 BRACKET SUPPORT PANEL L SECC 542.6*46.4* 3791009200 OTHER ASSY SPEAKER-R LT32AAN 43AAB 3791009300 OTHER ASSY SPEAKER-L LT32AAN 43AAB 50537002WD...
Page 28: Appendix B. Exploded Diagram
COLOR LCD TV DISPLAY APPENDIX B. Exploded Diagram LTV-27w7 HD Part # Description Part # Description 50527001XX Panel 32006757XX Label Connector-R 33660003XX Front Bezel 33682502XX Stand Base Assembly 32009579XX Name Plate 34602451XX Bracket Panel 33605086XX IR Lens 34602068XX Bracket Side-Mount-Right...
Page 29 COLOR LCD TV DISPLAY Exploded Diagram LTV-32w6 HD Part # Description Part # Description 3361O997XX FRONT BEZEL 33605083XX LED LENS 5600110349 FUNCTION KEY BOARD 32110452XX MYLAR FILM-R 33607383XX FUNCTION KEY 32110453XX MYLAR FILM-L 34610401XX PLATE SPEAKER GILL 50532000XX PANEL MODULE 33620139XX FRONT DECORATE-R 33682326XX...
Page 30 COLOR LCD TV DISPLAY Exploded Diagram LTV-37w2 HD Part # Description Part # Description 3361508000 BEZEL 3460241600 D-SUB BRACKET L 3361220100 DECORATION KEY 3460241201 PANEL BRACKET 3360740800 FUNCTION KEY 3200875301 CONNECTOR LABEL L 5600110521 3360262900 BACK CABINET 3360505500 LED LENS 3460241700 D-SUB BRACKET R 3360508800...
Page 31: Appendix C. Block Diagram
COLOR LCD TV DISPLAY APPENDIX C. Block Diagram www.westinghousedigital.com...

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Westinghouse LTV-27w7 HD Service Manual

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