Westinghouse LTV-27w2 Service Manual
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Westinghouse LTV-27w2 Service Manual

27” & 32” color lcd tv display
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Model No.
LTV-27w2
LTV-32w1
Type No. :
SLT27A
SLT32A
27" & 32" Color LCD TV Display

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Summary of Contents for Westinghouse LTV-27w2

  • Page 1 Model No. LTV-27w2 LTV-32w1 Type No. : SLT27A SLT32A 27” & 32” Color LCD TV Display...

  • Page 2: Table Of Contents

    27" & 32" COLOR LCD TV DISPLAY Table of Contents 1. Precautions and Safety Notices ........... . 2 2.

  • Page 3: Precautions And Safety Notices

    27" & 32" COLOR LCD TV DISPLAY 1. Precautions and Safety Notices Prior to using this manual, please ensure that you have carefully followed all the procedures outlined in the user manual for this product. • Read all of these instructions. •...

  • Page 4: Specifications

    27" COLOR LCD TV DISPLAY 2. Specifications 2.1 General Item Specifications for LTV-27w2 27” diagonal (26.97” viewable) Display Area 23.5” (H) x 13.2” (V) 640x480, 800x600, 1024x768, Resolution 1280x720 (Native), 1280x768 Aspect Ratio 16:9 Pixel Pitch 0.1555mm(H) x 0.4665mm(V) Display Panel...
  • Page 5 32" COLOR LCD TV DISPLAY 2. Specifications 2.1 Gener Item Specifications for LTV-32w1 32” diagonal (32.02” viewable) Display Area 27.9” (H) x 15.7” (V) 640x480, 800x600, Resolution 1280x768, 1280x1024, 1360x768 (Native) Aspect Ratio 16:9 Pixel Pitch 0.1730mm(H) x 0.5190mm(V) Lamp Life 60,000 hrs Display Panel Display Color...

  • Page 6: Testing

    27" & 32" COLOR LCD TV DISPLAY 3. Testing 3.1. Environment Test Condition 30 Minutes Warm-Up Viewing Distance Input Characteristics Input voltage range. 90Vac to 264Vac. Input frequency range 50 or 60Hz ± 3Hz. Power board output voltage 24V, 12V, 5VC, 5VSB +/-5% Input current 50/60 Hz (auto switch), 0.8A/1.8A Inrush current...
  • Page 7 27" & 32" COLOR LCD TV DISPLAY Audio Test Test Condition Base input audio waveform Sine wave 0.5Vr.m.s. (1.414Vp-p) @ 1KHz Video setting Purity white at 1280 x 768 @ 60Hz Contrast and Brightness Default Balance = 0, Bass = 10, Treble = 10. Connect an audio source to each audio input (VGA, DVI, AV x 2, and component x 2) and the speakers should output sound.
  • Page 8 27" & 32" COLOR LCD TV DISPLAY Video Performance Test The following tests should be conducted by connecting the video signal to one port at a time. VIDEO PORTS TO TEST AV port S-Video port YCbCr/YPbPr TV Composite Video* Color Bar •...
  • Page 9 27" & 32" COLOR LCD TV DISPLAY Video Performance Test Connect a cable TV or RF pattern generator signal and set the RF sensitivity to 45 ~85dBµV. An image should be displayed. If under 60dBµV, some snow noise is acceptable but there should not be any color loss.

  • Page 10: Factory Settings

    27" & 32" COLOR LCD TV DISPLAY 3.3 Factory Settings S-Video Component1 Component2 DVI Video DVI PC Mode Mode Brightness Contrast Saturation Color Temp. Color 3 Sharpness None None Aspect Ratio FILL Backlight Volume Bass Treble Balance Stereo None None None None None...

  • Page 11: Front Panel Controls

    27" & 32" COLOR LCD TV DISPLAY 4. Front Panel Controls 4.1 User Control Use the MENU on the right side of the LCD TV or on the remote control to display the On Screen Display (OSD). The OSD controls are defined in “OSD Functions” on page 12. “IR”...
  • Page 12 27" & 32" COLOR LCD TV DISPLAY 1. S-Video Input Connect to an external video device such as a digital cable/satellite receiver, VCR, DVD or video game system. 2. AV1 Video Input Connect an external video device such as a VCR, DVD or video game system.

  • Page 13: Internal Function Key

    27" & 32" COLOR LCD TV DISPLAY 4.2 Internal Function Key Special Keys (Hot key) Function Hot Key Remark Turn on Burn-in Mode “VOL -” + “Input” + “Power Button” ISP Mode “MENU” + “VOL +” + “Power Button” Factory Mode While in the Burn-in mode, press the “RETURN”...
  • Page 14 27" & 32" COLOR LCD TV DISPLAY Picture Parameters: Function Name Function Brightness Brightness adjustment Contrast Contrast adjustment Saturation Saturation adjustment Hue adjustment Color Temp Color temperature adjustment (Color 1, Color 2, Color 3) Sharpness adjustment Sharpness (Sharpness cannot be adjusted in PC mode) Aspect Ratio Set display to “STANDARD”...
  • Page 15 27" & 32" COLOR LCD TV DISPLAY PC Parameters: Function Name Function Auto Adjust Automatically adjust the horizontal phase of the image Clock Clock adjustment Phase Phase adjustment Position Adjust the horizontal and vertical position of the image NOTE: The GRAPHIC menu is only available when VGA source is selected. www.westinghousedigital.com...
  • Page 16 27" & 32" COLOR LCD TV DISPLAY Audio Settings: Function Name Function Volume Volume adjustment Bass Bass adjustment Treble Treble adjustment Balance Balance adjustment MTS Selection NOTE: This function depends on the type of broadcast being received. Mute Select Audio OFF or ON Speaker Select internal or external speaker Reset...
  • Page 17 27" & 32" COLOR LCD TV DISPLAY Picture-in-Picture: Function Name Function Display Mode OFF➝PIP➝PBP➝POP Select main screen sources Main Source TV➝AV1➝AV2➝S Video➝YPbPr1➝YPbPr2➝VGA➝DVI Select sub screen sources PIP Source See PIP/PBP/POP specification in Table 1 Swap Swap main screen and sub-screen source PIP Position Sub-screen display horizontal/vertical position adjustment Sub-screen display size adjustment...
  • Page 18 27" & 32" COLOR LCD TV DISPLAY Channel Settings: Function Name Function TV / CATV Select TV source type (ANTENNA➝ Cable STD➝ Cable HRC➝ Cable IRC) Auto Scan Automatically detect available TV channels Channel EDIT Add/Delete the selected TV channel Turn the Close Caption OFF or CC1, CC2, CC3, CC4, Close Caption TEXT1, TEXT2, TEXT3, TEXT4...
  • Page 19 27" & 32" COLOR LCD TV DISPLAY Function Name Function MPAA Rating NONE: Not available G: General audience PG: Parental guidance suggested PG-13: Parents strongly cautioned R: Restricted NC 17: No one 17 and under admitted X: Adult audience only TV PG Rating TV PG Rating TV Y: All children TV Y7: For older children...
  • Page 20 27" & 32" COLOR LCD TV DISPLAY General Settings: Function Name Function Menu Position OSD horizontal/vertical position adjustment Menu Timeout Set the time to turn off the OSD automatically Language OSD language selection. Sleep Timer Set sleep timer to turn off the power automatically Transparency Set OSD transparency level DPMS...

  • Page 21: Appendix A. Part Numbers

    SCREW T 3x2.7x6 FF C S18C ZN BLK 3110250000 WASHER SPRING SWRT Mechanical Parts 3200667500 NAME PLATE NI WDE LOGO OD16.5 T.1 3200667601 LABEL CONNECTOR-L 231.4x43.25 WDE 3200668001 LABEL CONNECTOR-R 231.4x43.25 WDE 3201994101 LABEL ID 119.5x59.5 WESTINGHOUSE L 3240046600 WASHER NYLON66 94V-2 10x4x5 www.westinghousedigital.com...
  • Page 22 27" COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION QUANTITY Mechanical Parts (continued) 3360258700 R/C ABS LT27BAN43AAB W7VRA1LS 3360738300 FUNCTION KEY ABS W7VFA1LS 3361099100 F/B ABS SILVER LT27BAN43AAB W7VFA1 3361216000 COVER EARPHONE ABS W7VRA1LS 3368225001 CABINET ASSY LT27AAN43AAB W7VFA1LS 3368232502 BASE ASSY LT27BAN43AAB W7VBA1LS 3369014700 SPK COVER ASSY LT27AAN43AAB W7VFA1 3460204400...
  • Page 23 32" COLOR LCD TV DISPLAY Appendix A. Part Numbers PART NUMBER DESCRIPTION QUANTITY Power 3090107601 AC POWER CORD L=1800 BLK NA #18x3C 4900211680 POWER SUPPLY 90-264 VAC TV USE PCBA 5600110347 PWB ASSY MAIN BD LT32AAN 43AAB 5600110348 PWB ASSY FRONT BD LT32AAN 43AAB 5600110349 PWB ASSY FUN.
  • Page 24 32" COLOR LCD TV DISPLAY PART NUMBER DESCRIPTION QUANTITY Mechanical Parts (continued) 3460206201 BRACKET SIDE-L SECC 472.5x64.7x30. 3460207100 BRACKET ARM-BASE2 SECC 214x77.7x47 3460215300 BRACKET SECC 225x130 T2 3461040100 PLATE SPEAKER GILL SECC 789.7x74.2 3461261000 SHIELD CAN TOP SECC 226x114.5x47.8 3461261600 SHIELD CAN BOTTOM SECC 226x144x1.9 3790187700 SPEAKER-R ASSY LT32AAN43AAB...

  • Page 25: Appendix B. Exploded Diagram

    27" & 32" COLOR LCD TV DISPLAY Appendix B. Exploded Diagram www.westinghousedigital.com...

  • Page 26: Appendix C. Block & Schematic Diagram

    27" & 32" COLOR LCD TV DISPLAY Appendix C. Block & Schematic Diagram www.westinghousedigital.com...
  • Page 27 Westinghouse Digital Electronics www.westinghousedigital.com SE-SG-2702-0501 Service Manual for 27” & 32” Color LCD TV Display 4/15/05 City of Industry, CA...

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Ltv-32w1

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