Westinghouse LTV-27w2 User manual

Model No. LTV-27w2

LTV-32w1

Type No. : SLT27A

SLT32A

27” & 32” Color LCD TV Display

27" & 32" COLOR LCD TV DISPLAY

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Table of Contents

1. Precautions and Safety Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1. Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4. Front Panel Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 User Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Internal Function Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.3 OSD Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Appendix A. Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Appendix B. Exploded Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Appendix C. Block & Schematic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-

27" & 32" COLOR LCD TV DISPLAY

1. Precautions and Safety Notices

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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.

• Save these instructions for later use.

• Follow all warnings and instructions marked on the product.

• Do not use this product near water.

• This display should be installed on a solid horizontal base.

• When cleaning, use only a neutral detergent cleaner with a soft damp cloth. Do not

spray with liquid or aerosol cleaners.

• Do not expose this display to direct sunlight or heat. Hot air may cause damage to the

cabinet and other parts.

• Adequate ventilation must be maintained to ensure reliable and continued operation and

to protect the display from overheating. Do not block ventilation slots and openings with

objects or install the display in a place where ventilation may be hindered.

• Do not install this display near a motor or transformer where strong magnetism is gener-

ated. Images on the display will become distorted and the color irregular.

• Do not allow metal pieces or objects of any kind to fall into the display from ventilation

holes.

Slots and openings in the cabinet and the back or bottom are provided for ventilation. To

ensure reliable operation of the product and to protect it from overheating, those openings

must not be blocked or covered. The openings should never be blocked by placing the prod-

uct on a bed, sofa rug, or other similar surface. This product should never be placed near or

over a radiator or heat register. This product should not be placed in a built-in installation

unless proper ventilation is provided.

27" COLOR LCD TV DISPLAY

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2. Specifications

2.1 General

Item Specifications for LTV-27w2

Display Area 27” diagonal (26.97” viewable)

23.5” (H) x 13.2” (V)

Resolution 640x480, 800x600, 1024x768,

1280x720 (Native), 1280x768

Aspect Ratio 16:9

Pixel Pitch 0.1555mm(H) x 0.4665mm(V)

Lamp Life 60,000 hrs

Display Color 16.7 M

Transmissive Mode Normally black

Viewing Angle 170° (H) / 170° (V)

Brightness

(Luminance) 550cd/m2

Contrast Ratio 600:1

Response Time 16 ms

Separate Sync TTL Level

Horizontal Sync Positive/Negative

Vertical Sync Positive/Negative

Composite (Video In) 2xRCA

(Yellow, Red, White)

S-Video In S-Video

Component In YPbPr RCA,

Tuner In TV System

Antenna/NTSC

Audio In (2) RCA (Red/White)

(Audio L/R In)

Audio Out 3.5mm Stereo

(Headphone)

Compatibility Color System NTSC

Audio Output Built-in Speaker 2 x 9 watt speakers

Physical Dimensions 26.8"W x 22"H x 7.3"D (w/ Base)

26.8"W x 20.5"H x 4.0"D (w/o Base)

Weight 30 lbs w/Base

26 lbs w/o Base

Power Adapter Input – AC 90-240VAC

50/60 Hz (auto switch), 1.6A, universal

Power Consumption Normal Mode: Under 150W

Power off Mode : Under 3W

Operating Temperature 32°F to 95°F (0°C to 35°C)

Regulation Safety/EMC UL/C-UL, FCC-B

DDC Plug & Play VESA DDC1 and DDC2B

Function Function Key 7 keys

Preset Timing Mode (Pre-adjusted to reduce blinking: 1280 x 720 at 75Hz)

Warning: Do not set the graphics card in your computer to exceed these refresh rates; doing so may result in permanent

damage to the LCD TV.

Note: Product Specifications are subject to change without notice.

Graphic

Display Panel

Other

Connectors

Item Specifications for LTV-32w1

Display Area 32” diagonal (32.02” viewable)

27.9” (H) x 15.7” (V)

Resolution 640x480, 800x600,

1280x768, 1280x1024, 1360x768 (Native)

Aspect Ratio 16:9

Pixel Pitch 0.1730mm(H) x 0.5190mm(V)

Lamp Life 60,000 hrs

Display Color 16.7 M

Transmissive Mode Normally black

Viewing Angle 170° (H) / 170° (V)

Brightness

(Luminance) 550cd/m2

Contrast Ratio 1000:1

Response Time 8 ms

Separate Sync TTL Level

Horizontal Sync Positive/Negative

Vertical Sync Positive/Negative

Composite (Video In) 2xRCA

(Yellow, Red, White)

S-Video In S-Video

Component In YPbPr RCA,

Tuner In TV System

Antenna/NTSC

Audio In (2) RCA (Red/White)

(Audio L/R In)

Audio Out 3.5mm Stereo

(Headphone)

Compatibility Color System NTSC

Audio Output Built-in Speaker 2 x 9 watt speakers

Physical Dimensions 31.3"W x 25.5"H x 8"D (w/ Base)

31.3"W x 23.5"H x 3.8"D (w/o Base)

Weight 34 lbs w/Base

30 lbs w/o Base

Power Adapter Input – AC 90-240VAC

50/60 Hz (auto switch), 1.6A, universal

Power Consumption Normal Mode: Under 150W

Power off Mode : Under 3W

Operating Temperature 32°F to 95°F (0°C to 35°C)

Regulation Safety/EMC UL/C-UL, FCC-B

DDC Plug & Play VESA DDC1 and DDC2B

Function Function Key 7 keys

Preset Timing Mode (Pre-adjusted to reduce blinking: 1360 x 768 at 60Hz)

Warning: Do not set the graphics card in your computer to exceed these refresh rates; doing so may result in permanent

damage to the LCD TV.

Note: Product Specifications are subject to change without notice.

32" COLOR LCD TV DISPLAY

2. Specifications

2.1 Gener

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Graphic

Display Panel

Other

Connectors

27" & 32" COLOR LCD TV DISPLAY

www.westinghousedigital.com

3. Testing

3.1. Environment

Test Condition

30 Minutes Warm-Up

Viewing Distance 1m

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 < 50A @ 115VAC, < 100A (MAX) @230VAC.

Operating Temperature 0° C to + 35° C (32° F to + 95° F)

Operating Relative Humidity 10% to 90% (no condensation)

Storage Temperature -20° C to + 60° C (-4° F to + 140° F)

Storage Relative Humidity 10% to 95% (no condensation)

Operating Altitude 0 meters to +3,000 meters

Storage Altitude 0 meters to +12,000 meters

Test Fixture & Equipment

Video Generator CHROMA & VCD/DVD/VCR/GAME/DVHS PLAYER

Pattern Generator CHROMA2225/VG828/VG848/VG858

3.2 Tests

Component 1&2, AV 1&2, S-Video, TV Function & Function Key test

YPbPr & Composite AV port & S-Video Port Toggle Test

Connect a YPbPr video signal to the Component port, and a composite video signal

to the AV port, and a S-Video Signal Source to the S-Video port. Using the OSD,

toggle through all the sources, and confirm that an image is displayed.

RF Signal Test

NTSC Cable Test. (Standard cable 125 Channel)

NTSC Air Test. (Antenna 69 Channel)

With a RF cable connected, a picture should be displayed.

27" & 32" COLOR LCD TV DISPLAY

Audio Test

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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.

Speaker Specifications

Line Input Connection 3.5 mm stereo Jack x 1, RCA Jack (L/R) x 5

Line Input Signal 0.5Vrms (1.414Vp-p)

Line Input Impedance 10KΩ

Maximum Power Output (electric) 9W x 2 @ 10 % THD at Freq.= 200Hz ~ 15KHz

Frequency response 200Hz – 15KHz into 8ΩLoad

Distortion < 10 % THD

Audio DPMS Speakers must be mute when the display is in power

saving mode

27" & 32" COLOR LCD TV DISPLAY

www.westinghousedigital.com

Video Performance Test

VIDEO PORTS TO TEST

AV port S-Video port YCbCr/YPbPr TV Composite Video*

• The color from left to right should be White, Yellow, Sky Blue, Green, Magenta,

Red, and Blue.

• Some smearing or dot crawl between color

bars is acceptable.

• Use the Blue color filter to check Hue and

Saturation are in the optimized point.

(Saturation - Blue and White color should be

the same when seen through a blue color

filter.)

(Hue - Magenta and Sky Blue color should

be the same when seen through a Blue

color filter.)

• Crosshatch pattern should have no visible noise.

• In low bandwidth pattern, there shouldn’t

be any dots on the transition edges.

• In high bandwidth pattern, there shouldn’t

be any loss of resolution and the scaling

should be correct.

• This is a sample with no visible noise.

• There shouldn’t be any visible noise at transition edges.

• The gray scale should not be saturated at default value

The following tests should be conducted by connecting the video signal to one port at a time.

Color Bar

Pattern

(COL_SMPTE)

Multi Burst

Pattern

Black & White

Pattern

Gray Scale

Pattern

Crosshatch

27" & 32" COLOR LCD TV DISPLAY

Video Performance Test

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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.

TV Channel Auto Scan

• The auto scan process should take less than 3 minutes.

• Pressing the “Menu” key should exit the TV channel scanning.

V-Chip & Close Caption Function Test

• Close Caption:

• Select “Close Caption” (In main picture OSD) to CC1, CC2, CC3, CC4, TT1, TT2, TT3, TT4.

• Using a FLUKE 54200 or VG848/858, test CC number 1, CC number 2, CC number 3, CC

number 4, CC number 5, CC number 6, CC number 7, CC number 8.

• Parental Control:

• Select the “Parental Control” in OSD and enter the password “0000”. Enter the TV

rating and setting all the rating to “LOCKED”.

• Using a FLUKE 54200 or VG848/858, test the CC Sequence, the image should be

locked and should show the “enter password” and rating message. After entering

the password and the image should display again.

Power Supply Tests

Power Consumption Test Table:

Audio Test

Connect a VGA audio input source to VGA audio input. The audio function of Balance, Bass,

and Treble should be working normally.

Connect AV1 & AV2 (AV & S-Video) audio input source to AV L/R audio input. The audio

function of Balance, Bass, and Treble should be working normally.

Connect Component 1 & 2 audio input source to Component 1 & 2 L/R audio input. The audio

function of Balance, Bass, and Treble should be working normally.

Audio Output Test: When each audio input has a source, then the audio output RCA jack

(L/R) should output 0.5Vrms (1.414Vp-p).

Note:

1. “Green” color for 00AAB, “Blue” color for 43AAB.

2. Amber (1sec) ➝Green (1sec) ➝Amber (1sec) ➝ Green (1sec)… continuously.

3. The power saving status is only for VGA / DVI PC mode (DMPS is on).

Power saving time is 30 seconds; in factory mode it is 3 seconds.

TV Status LED Color Video Signal Power Consumption Recover Time

Power On Green1Active <180W

Aging Note2NA <180W

Power Saving Amber3NA <3W

DC Power Off Off NA <3W

AC Power Off Off NA -

27" & 32" COLOR LCD TV DISPLAY

www.westinghousedigital.com

3.3 Factory Settings

TV AV S-Video Component1 Component2 DVI Video DVI PC VGA

Mode Mode

Brightness 50 50 50 48 50 44 50 50

Contrast 45 45 45 50 50 50 50 50

Saturation 50 50 50 40 55 55 50 50

Hue 0

Color Temp. Color 3

Sharpness 0 0 0 0 0 0 None None

Aspect Ratio FILL

Backlight 100

Volume 30

Bass 10

Treble 10

Balance 0

MTS Stereo None None None None None None None

Mute OFF

Speaker Internal

Display Mode OFF

Main Source TV

PIP Source VGA

PIP Position H-position: 100, V-position: 100.

PIP Size SMALL

Audio From TV

TV/CATV CABLE STD

Closed Caption OFF

Sleep OFF

MPAA Rating None

TV PG Rating None

MENU Position H-position: 0, V-position: 0.

MENU Timeout 10 second

Language English

Transparency 3

DPMS ON

DC Power OFF

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