LG L15V26 Installation guide

Service
Digital Display
TRAINING MANUAL
LCD DIRECTVIEW TELEVISION - 2006

Published February 2006 by LG Education & Product Engineering
Customer Service (and Part Sales): 1-800-243-0000
Technical Support (and Part Sales): 1-800-847-7597
USA Website: www.lgusa.com
Customer Service Website: us.lgservice.com
B2B Service Website: aic.lgservice.com
Training Website: www.LGCSAcademy.com
IMPORTANT SAFETY NOTICE
This manual was prepared for use only by properly trained audio-visual service technicians. When servicing this product, under no circumstances
should the original design be modified or altered without permission from LG Electronics. Unauthorized modifications will not only void the
warranty, but may lead to property damage or user injury. All components should be replaced only with types identical to those in the original
circuit and their physical location, wiring, and lead dress must conform to original layout upon completion of repairs. If any fuse (or Fusible
Resistor) in this TV receiver is blown, replace it only with the factory specified fuse type and rating. When replacing a high wattage resistor (Oxide
Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Always keep wires away from high voltage or high temperature parts. Do not
attempt to modify this product in any way.
Special components are also used to prevent shock and fire hazard and are required to maintain safe performance. No deviations are allowed
without prior approval by LG Electronics. Service work should be performed only after you are thoroughly familiar with these safety checks and
servicing guidelines. Circuit diagrams may occasionally differ from the actual circuit used. This way, implementation of the latest safety and
performance improvement changes into the set is not delayed until the new service literature is printed.
GENERAL SAFETY GUIDANCE
An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a
transformer of adequate power rating to protect against personal injury from electrical shocks. It will also protect the receiver and its components
from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. Before returning the
receiver to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals,
etc., to be sure the set is safe to operate without damage of electrical shock.
With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on
position, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic
parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be
between 1MΩand 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. Any other abnormality that
exists must be corrected before the receiver is returned to the customer.
ELECTROSTATICALLY SENSITIVE DEVICES
Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically
Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip” compo-
nents. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on the body
by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be
removed for potential shock reasons prior to applying power to the unit under test. After removing an electrical assembly equipped with ES
devices, place the assembly on a conductive surface such as an ESD mat, to prevent electrostatic charge buildup or exposure of the assembly. Use
only a grounded-tip soldering iron to solder or unsolder ES devices. Use only an anti-static solder removal device. Some solder removal devices
not classified as “anti-static” can generate electrical charges sufficient to damage ES devices. Do not use freon-propelled chemicals which can
generate electrical charge sufficient to damage ES devices. Do not remove a replacement ES device from its protective package until immediately
before you are ready to install it. Minimize bodily motions when handling unpackaged replacement ES devices (Otherwise, seemingly harmless
motion, such as the brushing together of your clothing or the lifting of your foot from a carpeted floor, can generate static electricity sufficient
to damage an ES device).
REGULATORY INFORMATION
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may
cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna;
Increase the separation between the equipment and receiver; Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected; Consult the dealer or an experienced radio/TV technician for help.
The responsible party for this device’s compliance is:
LG Electronics of Alabama, Inc.
201 James Record Road
Huntsville, AL 35824, USA
Digital TV Hotline: [phone]

Directview LCD Training 3Contents
TABLE OF CONTENTS
OVERVIEW..................................................5
INTRODUCTION ........................................ 5
MOUNTING INTERFACE .............................. 5
COMPUTER CONNECTION ............................ 6
REMOTES ................................................ 6
TERMINOLOGY ............................................7
VIEWING ANGLE ....................................... 7
IPS (IN-PLANE SWITCHING) ....................... 7
PEAK BRIGHTNESS ................................... 7
CONTRAST RATIO ...................................... 7
RESPONSE TIME ....................................... 7
A/V CONNECTIONS .................................... 8
THEORY .....................................................9
LIQUID CRYSTALS ..................................... 9
LIQUID CRYSTAL DISPLAY .......................... 9
LIQUID CRYSTAL PANEL ........................... 10
LCD VERSUS CRT .................................... 11
LCD VERSUS PLASMA .............................. 11
MODEL OVERVIEW ..................................... 12
MODEL NUMBERS ................................... 12
MODEL DESCRIPTIONS ............................. 15
CIRCUIT DESCRIPTIONS ............................. 20
15”CIRCUIT DESCRIPTIONS (L15V26) ........ 20
30”CIRCUIT DESCRIPTIONS (L30W26) ....... 23
32” CIRCUIT DESCRIPTIONS (CABLECARD MODELS)
28
FIRMWARE UPDATES .................................. 33
FIRMWARE UPDATES VIA MEMORY CARD ..... 33
DISASSEMBLY ........................................... 37
SMALL SCREEN MODELS ........................... 37
LARGE SCREEN MODELS - PART 1 .............. 37
LARGE SCREEN MODELS - PART 2 .............. 39
EXPLODED VIEWS ................................... 40
CABLECARD .............................................. 62
DIGITAL CABLE READY (DCR) .................... 62
CEA-NCTA AGREEMENT ............................. 62
TERMS ................................................. 63
VENDORS .............................................. 63
DCR ARCHITECTURE ................................ 64
HOST-CABLECARD INTERFACE ................... 64
IN-BAND/OOB SPECIFICATION ................... 66
CABLE MENU & MMI ............................... 67
DIGITAL CERTIFICATES DATA ..................... 70
CABLECARD RESET .................................. 70
EAS (EMERGENCY ALERT SYSTEM) .............. 70
HOST DIAGNOSTICS ................................ 71
ERROR REPORTING ................................. 71
CABLE CARD TROUBLESHOOTING ............... 72
IN-HOME TROUBLESHOOTING ................... 77
CABLECARD TROUBLESHOOTING ................ 80
TV GUIDE ................................................. 82
OVERVIEW ............................................ 82
OPERATION ........................................... 82
SYSTEM INFO ........................................ 83
SYSTEM FLOWCHART ............................... 85

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Directview LCD Training 5Overview
OVERVIEW
OVERVIEW
INTRODUCTION
All LCD TV models are module level repair in and out of warranty. They are
covered by a one year parts and labor warranty. For service, the end user
should call 1-800-243-0000 for complete shipping and handling
instructions. Refer to the last page of the owner’s manual for more warranty
information. For models under 30”, the Sevice Level is Factory Service
Repair. Larger models are Field Service. Although, warranty repair by an
ASC is approved in certain situations for smaller screen models. Contact
the LG Warranty department for more information.
Most models are similiar in function and internal layout with the exception of models over 23". For
example, the 30" inch LCD has more fluorescent lamps than normal (16 lamps) and some additional
user functions.
Note that not all models support HDTV (High Definiton Television). The 10”, 13”, and 20” models do
not support HDTV, but 20” models do support EDTV (Enhanced Definiton Television). The section on
Models has more information about the specifications of each model.
MOUNTING INTERFACE
The Video Electronics Standards Association (VESA) Flat Display Mounting Interface Standard (FDMI)
outlines mounting interface standards for flat-panel displays. VESA FDMI Standards are 75 x 75 mm,
100 x 100 mm, and 100 x 200 mm mounting hole pattern with 4, 4 mm x 10 mm screws. Most new
models feature a VESA mount, except large screen models. Large screen models use mounting hole
patterns similar to PDPs.
75MM MOUNT
10” Models
100MM MOUNT
13” to 23”
200MM MOUNT
26” to 32” Models
NO VESA MOUNT
37, 42, & 55” models
100mm
100mm
10mm
4mm

Directview LCD Training 6Overview
OVERVIEW
COMPUTER CONNECTION
Most models except the 10”, 13”, and 20” support
computer video. Set the monitor output resolution
and vertical frequency on the PC before connecting
to the TV (see table). Connect the TV to the computer
with a VGA cable. Connect the computer’s audio
output to the TV’s PC SOUND input.
The TV has been pre-adjusted to use XGA 1024x768,
60Hz format. If possible, use one of the XGA formats
to obtain the best image quality for your TV/LCD
monitor. LCD monitors should be used at their native
(normally their max) resolution. If set up under
other resolutions, a slightly distorted picture may
appear on the screen. If the message “OUT OF
RANGE” appears on the screen, adjust the PC output
to a format listed in the chart.
power
flashbk
menu mute
sleep
ch
enter
vol vol
ch
cc
tv/video
0
23
564
897
1
mts
pip
ch
pip input
position
powermute
tv/video multimedia mts
fcr
ch
ch
vol
enter
123
456
789
0
vol
exit menu
audio
flashbkcc sleep
video
pip position
pip input ch
0
23
56
4
89
7
1
REMOTES
2001/2002
SMALL SCREEN MODELS
123
456
78
0
9
SLEEP INPUT SELECT
POWER
APC DASP
ARC PIP ARC
PIP TWIN PICTURE
SWAP SUB INPUT
MENU MUTE
VOLVOL
ZOOM+
ENTER
ZOOM-
WIN.SIZE
WIN.POSITION
Mode Resolution Hor iz ontal
Frequency (KHz)
Vertical
Frequency (KHz)
640x400 31.5KHz 70Hz
640x400 37.9KHz 85Hz
640x480 31.5KHz 60Hz
640x480 35.0KHz 67Hz
640x480 37.9KHz 72Hz
640x480 37.5KHz 75Hz
640x480 43.3KHz 85Hz
720x400 31.5KHz 70Hz
800x600 35.2KHz 56Hz
800x600 37.9KHz 60Hz
800x600 48.1KHz 72Hz
800x600 46.9KHz 75Hz
800x600 53.7KHz 85Hz
(MAC) 832x624 49.7KHz 75Hz
1024x768 48.4KHz 60Hz
1024x768 56.5KHz 70Hz
1024x768 60.2KHz 75Hz
1024x768 68.67KHz 85Hz
XGA
SVGA
VGA
Computer Video Modes
2003+
SMALL SCREEN MODELS 30” LCD STYLE
REMOTE
2005+
LARGE SCREEN MODELS

Directview LCD Training 7Terminology
TERMINOLOGY
TERMINOLOGY
This section explains some of the terminology used with LCD TVs.
VIEWING ANGLE
Viewing angle is the angle at which the display’s brightness begins to noticeably diminish. Viewing
angle used to be a major factor when choosing an LCD but they have improved enough on current
models that it is not an issue anymore. This is due to advancements like In-Plane Switching, High-
efficiency Backlights, and reflective Polarizers. Some smaller screen LCDs (under 15”) may still have
limited viewing angles to keep costs down.
IPS (IN-PLANE SWITCHING)
In-Plane Switching provides more control over the
Liquid Crystals in an LCD. It uses an electric field to
line up the Liquid Crystals in an arc formation. This
directs light out at angles which improves the viewing
angle.
PEAK BRIGHTNESS
Peak brightness is the maximum amount of brightness that a display can produce. It is often measured
in candella per square meter (cd/m2). Most
LG and Zenith LCDs are 400-450 cd/m2.
CONTRAST RATIO
Contrast Ratio is the ratio of a display’s
brightest white to its darkest black. Higher
Contrast Ratios are better and will allow a
TV to reproduce a more realistic picture
and make text easier to read. One of the
limitations of LCDs has been contrast ratio.
With recent improvements, our LCD TVs have a contrast ratio up to 450:1.
RESPONSE TIME
The speed at which the pixels can react or change. Slower response times can cause fast moving video
to “ghost” or distort because the scene changes faster than the LCD can display the video (especially
with video games). Response times of new LCDs isn't a factor for most uses, but older models could
experience noticable ghosting due to slower response times.
Liquid Crystal
Electrode
Conventional TFT-LCD IPS Mode TFT-LCD

Directview LCD Training 8Terminology
TERMINOLOGY
A/V CONNECTIONS
Below are connections you may find on LCD TVs. SD = Standard Definition and HD = High Definition.
P R
P B
Y
Component Video
Normally labeled "Component/
DTV/DVD". Supports HD.
RS-232
Normally labeled "Calibration Port", "Service
Port", and/or "RS-232". A.k.a. serial port.
or externalUsed for uploading firmware
DVI
Normally labeled "DVI", "PC/DTV", or "HDMI".
Digital instead of analog (Digital version of
VGA). Supports HD.
VGA
Normally labeled "RGB" and/or
"PC/DTV". Supports HD.
Antenna
Normally labeled "Antenna".
Supports HD. A.k.a. Coax, Cable.
Composite
Normally labeled "Composite"
. SD Only.
and/or
"Video"
S-Video
Super Video. Normally labeled "S-Video". SD
Only. A little better quality than Composite. Digital Audio
Normally labeled "Digital Audio (coaxial)".
Better quality then normal audio. Supports
Surround Sound.
Optical Audio
Normally labeled "Digital Audio (optical)".
Better quality then normal audio. Supports
Surround Sound. Uses a fiber optic cable.
HDMI
Normally labeled "HDMI". Newer version
of DVI. Supports HD and Digital Audio.
IEEE 1394
Normally labeled "IEEE 1394" or "DTV Link".
Supports HD and Digital Audio.
control of the unit (no video or audio).

Directview LCD Training 9Theory
THEORY
THEORY
This section covers what Liquid Crystals are and how an LCD Display works.
LIQUID CRYSTALS
In school you learned that matter has three distinct states; solid, liquid, and gas. However, there are
states of matter that may fall between these states, like liquid crystals. Basically they are crystals
that hold their orientation (shape) but can flow similar to liquids. Their molecules point in same
direction with respect to each other like in a solid, but they are free to change position like in a
liquid. Think of a handful of pencils. They collectively hold their shape at rest, but change shape when
you squeeze or let go of them.
There are different phases and types of liquid crystals that perform differently. Small amounts of
pressure, heat, and/or electricity can cause liquid crystals to change in some way. For LCDs we are
interested in the electricity aspect, but pressure and heat are side effects that have to be dealt with.
This is why LCDs have a limited operating range and distort when you press on the screen.
LIQUID CRYSTAL DISPLAY
A Liquid Crystal Display is composed of a light source (backlight), a Liquid Crystal Panel, and a driving
circuit. We start with a light source at the back of the panel composed of thin fluorescent bulbs
(CCFLs - Cold Cathode Flouresent Lamps). This light passes through filters to help create a uniform
light source. Then the light passes through the Liquid Crystal Panel which is composed of thousands
of pixels that control the flow of light throught the panel to make images.
SOLID LIQUID LIQUID CRYSTAL
Data Driver IC
Printed Circuit Board
Gate Driver IC
Inverter
Driving
Circuit
Power Supply
for Video Signal
Pixel Array & Wiring
Liquid Crystal
Panel
Polarizer
CF Panel
Liquid Crystal
TFT Panel
Lamp
Prism
Diffuser
Light Guide
Backlight Unit
Polarizer
Reflector
Inverter

Directview LCD Training 10 Theory
THEORY
TFT Element
Pixel Electrode
(Transparent)
Insulator
Semi-conductor
Source Gate Drain
Glass Panel
Liquid Crystal Panel
Frame
Prism
Diffusers
Reflector
Light Guide
Data Line
Gate Line
Pixel Electrode
Liquid Crystal
Common Electrode
Color Filter
Polarizer
Polarizer
Transistor
LIQUID CRYSTAL PANEL
Below (on the left) is a cross section of a liquid crystal panel. The key to an LCD's operation is the
polarizers. The polarizers only allow a certain wavelength of light to pass through. The two polarizers
are mounted at a 90 degree angle with respect to each other, which prevents light from passing
through. The liquid crystals are used to twist the light beam 90 degrees and allow light to pass
through that cell. Color comes from a simple light filter.
An LCD panel from a 15" LCD TV.
Each sub-pixel or cell (a red, green, and blue sub-pixel equals one pixel) is controlled by a Thin Film
Transistor (TFT). This provides accurate control of each cell and makes for an accurate picture. Some
methods used in the past that didn't involve a switch and current could leak to surrounding cells
resulting in a blurred image. A TFT is a semiconductor (bottom-right picture), it behaves like a relay
switch.

Directview LCD Training 11 Theory
THEORY
LCD VERSUS CRT
One disatvantage LCDs have is having fixed
pixels which makes it more difficult to scale
video than a CRT. A CRT can change the pixel
size by adjusting the size of the beam, LCDs
use a processor called a Scalar. LCDs feature
their best picture quality at their native
resolution (or max res) and CRTs feature good
quality at any resolution up to their maximum
resolution.
Scaled
video
example
LCD ADVANTAGES OVER CRT
Uses less power
Less heat ouput
Smaller and lighter
Unaffected by Magnetic Fields
CRT ADVANTAGES OVER
LCD
Better scaling
Less expensive
LCD ADVANTAGES OVER PLASMA
Uses less power
Smaller and lighter
Replaceable backlight
PLASMA ADVANTAGES OVER LCD
Less expensive (for same screen size)
Brighter
Better contrast
LCD VERSUS PLASMA

- 12 -

Directview LCD Training 13 Models
MODELS
MODEL OVERVIEW
This section covers some of the past and present LG and Zenith LCD TVs. Most LCD TVs feature similar
features and specifications. They support High Definition and computer input, except for the 10”,
13”, 20”, and the wireless 15” models. The 2005 models 26" and larger have built-in ATSC tuners and
support CableCARDTM. Note that Commerical models don't have CableCARDTM support since it is not
needed in a distribution network.
KEY TERMS
SDTV - Standard Definition (480i).
EDTV - Enhanced Definition (480p).
HDTV - High Definition (720p, 1080i).
XD Engine™ - Six distinct processes contribute to picture improvement.
CableCARDTM - Decoder card for digital cable.
HDMI - High Definition Multimedia Interface. Alternative to DVI. Smaller connector and
supports audio.
HDCP - High-bandwidth Digital Content Protection.
MODEL NUMBERS
OLDER ZENITH PRODUCTS (02-04)
L 1 5 V 2 6
Display Type
L = LCD
P = Plasma
R = CRT
Rear Projo
D = Micro
Display
Old Zenith Structure:
Screen Size Aspect Ratio
V= 4:3
W = 16:9
Model Year
2 = 2002
3 = 2003
4 = 2004
Feature Level
2 = Consumer
4 = Commercial
6 = Consumer

Directview LCD Training 14 Models
MODELS
OLDER LG PRODUCTS
M U – 5 0 P Z 9 0 V
Product Type
M= Monitor
D = ATSC Tuner
K = DVD Player
R = NTSC Tuner
T = DVR
Old LG Structure:
Screen Size Aspect Ratio
A B C = 4:3
X Y Z = 16:9
Feature Level
Options
H = High Altitude
V = Pivot
M = Altitude & Pivot
Q = Home Security
Network
D = DLP
L = LCD
Region
U = North America
Z = Europe
T = NA & EU
P = South America
J = Japan
N = Korea
Display Type
F = Flat CRT
L = LCD
P = Plasma
S = Micro Display
CURRENT LG/ZENITH PRODUCTS
Current (2005) LG & Zenith Structure:
6 0 P Y 2 D R
Product Type
R= NTSC Tuner
D = ATSC Tuner
M = No tuner
Screen Size
Feature
A = 4:3
P = 16:9
X Y Z = 16:9
L = LCOS
S = Slim
W = Wireless Series
Options
R = DVR
V = DVD
C = Commercial
Display Type
F = Flat CRT
L = LCD
P = Plasma
S = Micro Display
Brand
Z= Zenith
Blank = LG

Directview LCD Training 15 Models
MODELS
NEW LG/ZENITH PRODUCTS
New (2006) LG & Zenith Structure:
5 0 P A 1 D R - U A
Tuner
R= NTSC Tuner
D = ATSC Tuner
M = No tuner
Screen Size
Feature Level
C,F,J = Good
B,E,H = Better
A,D,G = Best
Series
Options
R = DVR
P = DVD
C = Commercial
H = High Altitude
Display Type
P = Plasma
L = LCD
M = LCD RPTV
D = DLP RPTV
S = LCoS RPTV
F = Flat CRT
N = CRT RPTV
J = Projector
C = Directview CRT
Brand
Z= Zenith
Blank = LG
Region
U = North America
B = Europe & NA
Chassis Version
The exception to the model rules on the previous pages are the ZLD models and a couple of special
commercial models. The ZLD models are our original/oldest LCD TVs and there are two 15" models
and one 20" model that use this nomenclature.
You should now be able to determine the approximate age of an LCD TV by its model number. Below
is an example using 15” LCD TVs.
New Models (2006): 15LC1R
Current models (2005): 15LA6R and Z15LA7R
Older models (2003-2004): RU-15LA61 and L15V36
Older models (2002-2003): L15V26
Original Model (1999-2002): ZLD15A1
MODEL NUMBER OVERVIEW

Directview LCD Training 16 Models
MODELS
10" MODELS
The 10” models do not support HDTV and don't support computer input like most LCDs. The new V34
models are commercial models. They feature an MPI/RF card like some of the CRT commercial sets
and also offer an optional RS-232 add-on card. The V22 has component inputs, but the V34 does not.
ZENITH L10V34H
ZENITH L10V34S
Brightness - 350 cd/m2
Contrast Ratio - 180:1
Viewing Angle - 120° x 95°
ZENITH L10V22
Brightness - 200 cd/m2
Contrast Ratio - 250:1
Viewing Angle - 90° x 90°
ZENITH L13V36
LG RU-13LA60
Type - SDTV
Resolution - 640 x 480
Viewing Angle - 140º x 120º
13" MODELS
The L13V36 is an standard definition TV and has a
resolution of 640x480 and features the new brighter LCD
panel technology. It accepts component input but does
not accept computer input.
15" MODELS
All 15" models support HDTV, computer input (VGA), and have the basic features that a normal TV
would have (e.g. v-chip, stereo, trilingual menus, on/off timer, closed captions). They have a built-in
NTSC tuner but no ATSC tuner. The L15V26, ZLD15A1b, and L15V36 feature picture-in-picture. Note
that PIP on these models only works in PC mode (main source set to RGB-PC).
The L15V26C has 120V power input instead of 12V. The power supply is located inside the TV instead
of being external like the 12V versions. The V24S model is a commercial model that features RS-232
input and has no component inputs (removed to make room for the RS-232 input). The L15V36
features an improved LCD display panel featuring Super IPS Technology. It is brighter, has a larger
viewing angle, and a higher contrast ratio than previous models.
L15V26
L15V26B
L15V26C
L15V26D
L15V24S L15V36
ZLD15A1
ZLD15A1b
ZENITH
MODELS
LG
MODELS
Z15LA7R
RU-15LA61 15LA6R 15LW1R Wireless TV 15LC1RB
OLDER NEWER
MODEL DESCRIPTIONS

Directview LCD Training 17 Models
MODELS
17" MODELS
The 17" widescreen models feature 1280 x 768 WXGA Resolution and support for HDTV. They also
feature Super IPS Technology which allows for distortion-free viewing from almost any angle. In
addtition to normal A/V inputs, they feature one VGA input (no DVI). The L17W36DVD is the same as
L17W36 but features a built-in slot load DVD player mounted vertically behind the screen. The
commercial model (RU-17LZ50C) features RS-232.
ZENITH
L17W36
L17W36DVD (built-in DVD)
LG
RU-17LZ22
KU-17WDVD (built-in DVD)
20" MODELS
The 20" models do not support HDTV. They will accept EDTV input (480p) and have component
inputs. They have no VGA connector like most LCDs.
RU-20LA61
RU-20LZ61
LG
MODELS
ZLD20A1
ZENITH
MODELS
L20V26
L20V26C
HCL20A12
L20V36
LG
17LX1R
ZENITH Z17LZ5R
LG RU-17LZ50C
20LA6R
Z20LA7R L20V34

Directview LCD Training 18 Models
MODELS
30" MODELS
The 30” widescreen models support HDTV and feature RS-232. The L30W36 does not have a built-in
tuner.
Type - HDTV
Resolution - 1280 x 768 (16:9)
Viewing Angle - 176º x 176º
DVI & VGA
RS-232
ZENITH
L30W26
L30W36
LG
MW-30LZ10
MW-30LZ12
26/27" MODELS LG 26LX1D/2D
1366 x 768p Resolution
1200:1 Contrast Ratio
NTSC/ATSC/QAM w/CableCARD
HDMI with HDCP
IEEE 1394 w/ DTV link
Memory Card Reader
TV Guide On Screen®
RGB (VGA) & RS-232
XD EngineTM
LG RU-30LZ50C
NTSC TUNER
DVI
RS-232
LG DU-30LZ30
ATSC TUNER
VGA & DVI
RS-232
Z26LZ5R
L27W46
RU-27LZ50C
1280 x 768p
176° x 176°
NTSC Tuner
DVI with HDCP
RS-232
23" MODELS
The 23" widescreen models have the same features as the 17" models including 1280 x 768 WXGA
resolution. They also feature Super IPS Technology which allows for distortion-free viewing from
almost any angle. The two on the right feature DVI w/ HDCP and RS-232 the other two have RGB
(VGA) and no RS-232.
LG RU-23LZ21
ZENITH L23W36
23LX1R/2R
23LX1RV (BUILT-IN DVD)
Z23LZ5R
RU-23LZ50C

Directview LCD Training 19 Models
MODELS
32" MODELS
37" MODELS
1366 x 768p Resolution
1200:1 Contrast Ratio
NTSC/ATSC/QAM w/CableCARDTM
HDMI with HDCP
IEEE 1394 w/ DTV link
Memory Card Reader
TV Guide On Screen®
RGB (VGA) & RS-232
XD EngineTM
1366 x 768p Resolution
1200:1 Contrast Ratio
NTSC Tuner
DVI with HDCP
RGB (VGA) & RS-232
Zenith
Z32LZ5R
LG
RU-32LZ50C
32LP1D
32LX1D/2D
LG DU-37LZ30
1366 x 768p Resolution
1000:1 Contrast Ratio
NTSC/ATSC/QAM
DVI with HDCP
XD EngineTM
RGB (VGA) & RS-232
LG 37LC2D
1366 x 768p Resolution
1600:1 Contrast Ratio
NTSC/ATSC/QAM
HDMI with HDCP
XD EngineTM
RGB (VGA) & RS-232

Directview LCD Training 20 Models
MODELS
55" MODEL
LG 55LP1M
1920x1080p Resolution
1200:1 Contrast Ratio
NTSC/ATSC/QAM
HDMI with HDCP
RGB (VGA) x2 & RS-232
42" MODELS
LG DU-42LZ30
1366 x 768p Resolution
1000:1 Contrast Ratio
NTSC/ATSC/QAM
DVI with HDCP
RGB (VGA) & RS-232
XD EngineTM
LG 42LP1D
1366 x 768p Resolution
1200:1 Contrast Ratio
NTSC/ATSC/QAM w/CableCARDTM
HDMI with HDCP
RGB (VGA) & RS-232
Memory Card Slot
XD EngineTM
LG 42LB1DR
Built-in DVR (160GB)
1366 x 768p Resolution
1600:1 Contrast Ratio
NTSC/ATSC/QAM w/CableCARDTM
HDMI with HDCP x2
RGB (VGA) & RS-232
XD EngineTM