Philips BDL4221V/00, BDL4221V/27, 420WN6QS/93, BDL4221VS/00, 420WN6QS/97 Service Manual

Horizontal frequencies 30 - 63kHz

Service

TABLE OF CONTENTS

Published by BCU Monitors Printed in suzhou Copyright reserved Subject to modification F May .23 2006

Description Page Important Safety Notice---------------------------------- 2 Technical Data/Installation----------------------------3~7 On-Screen Display------------------------------------8~11 Aging Mode/OSD LOCK/UNLOCK--------------------12

Trouble shooting-------------------------------------15~17 Failure Mode Of Panel-----------------------------------18

Factory Mode/Warning message-----------------13~14

Safety Test Requirements ------------------------------19 Mechanical Instructions----------------------------20~21 Electrical Instructions-------------------------------22~25 Display adjustment----------------------------------26~27 DDC DATA/Instructions-----------------------------28~36 ISP Instructions --------------------------------------37~38 Block Diagram---------------------------------------------39

Description Page Scaler Diagram--------------------------------------40~55 Scaler Board C.B.A---------------------------------56~57 Power Diagram/C.B.A -----------------------------58~60 IR&Control Diagram/C.B.A -----------------------61~62 DSUB Diagram/C.B.A------------------------------63~65 Tuner Diagram/C.B.A------------------------------66~68 Exploded View -------------------------------------------69 Recommended/Spare parts list -----------------70~75 Circuit description---------------------------------------76 Repair Tips-------------------------------------------77~78 General product specification------------------79~123 Different Parts List-------------------------------------124 Updated for 420WN6QS-----------------------125~126 Revision List--------------------------------------------127

REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES

CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

SAFETY NOTICE

3138 106 10490

BDL 42" LCD Monitor/TV

BDL4221V/00 BDL4221V/27 BDL4221VS/00 420WN6QS/93 420WN6QS/97

Important Safety Notice

420WN6 LCD TV

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Proper service and repair isimportant to the safe, reliable

operation of all HPConsumer Electronics Company**

Equipment. The service procedures recommended by HP and

described in this service manual are effective methods of

performing service operations. Some ofthese service

operations require the use of tools specially designed for the

purpose. The special tools should be used when and as

recommended.

It is important to note that this manual contains various

CAUTIONS and NOTICES which should be carefully read in

order to minimize the risk of personal injury to service

personnel. The possibility exists that improper service

methods may damage the equipment. It is also important to

understand that these CAUTIONS and NOTICES ARE NOT

EXHAUSTIVE. HP could not possibly know, evaluate and

advise the service trade of all conceivable ways in which

service might be done or of the possible hazardous

consequences of each way. Consequently, HP has not

undertaken any such broad evaluation. Accordingly, a

servicer who uses a service procedure or tool which is not

recommended by HP must first satisfy himself thoroughly that

neither his safety nor the safe operation of the equipment will

be jeopardized by the service method selected.

* * Hereafter throughout this manual, HP Consumer

Electronics Company will bereferred to as HP.

Critical components having special safety characteristics are

identified with a bythe Ref. No. inthe parts list and

enclosed within a broken line*

(where several critical components are grouped in one area)

along with the safety symbol on the schematics or

exploded views.

Use of substitute replacement parts which do not have the

same specified safety characteristics may create shock, fire,

or other hazards.

Under no circumstances should the original design be

modified or altered without written permission from Philips.

Philips assumes no liability, express or implied, arising out of

any unauthorized modification of design.

Servicer assumes all liability.

*BrokenLine

WARNING

Take care during handling the LCD module with backlight

unit

- Must mount the moduleusing mounting holes arranged infour

corners.

- Do not press onthe panel, edge of theframe strongly or electric

shock as this will result in damage to the screen.

- Do not scratch orpress on the panel withany sharp objects, such

as pencil or pen asthis may result in damage to the panel.

- Protect the module fromthe ESD as it maydamage the electronic

circuit (C-MOS).

- Make certain that treatment person s body are grounded through

wrist band.

- Do not leave themodule in high temperature andin areas of high

humidity for a long time.

- Avoid contact with water as it may ashort circuit within the module.

- If the surface ofpanel become dirty, please wipe it off with a soft

material. (Cleaning with a dirty or rough cloth may damage the

panel.)

FOR PRODUCTS CONTAINING LASER :

DANGER- Invisible laser radiation when open.

AVOID DIRECT EXPOSURE TO BEAM.

CAUTION- Use of controls or adjustments or

performance of procedures other than

those specified herein may result in

hazardous radiation exposure.

CAUTION- The use of optical instruments with this

product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS

PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S

REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART

NUMBERS IN THE PARTS LIST SECTION OF THIS

SERVICE MANUAL.

Technical Data

420WN6 LCD TV

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1. General

1.1. Product description

This 42 LCD TV Monitor is specified as a display peripheral with PC

analog video signal input and includes TV/ DTV function with 42 TFT LCD display.

Horizontal scan range is 30~63KHz and refresh range is 50~75 Hz.

This scan range allows it to display resolution up to 1366x768 non-interlaced at 60 Hz refresh rate. The image can be adjusted through OSD control; these adjustments can be stored on a board memory including 12 factory pre-set modes.

1.2 Destination : WE (PAL B/G/D/K /I ; SECAM L /L? )

1.3 B asic data

1.3.1 LCD panel

1.3.1.1 LPL Panel

Type NO : LC420W02 B6 (Supplier LPL)

Display area(mm) : 930.25mm x 523.01mm Number of Pixels : 1366(H) x 768(V) Pitch ( mm ) : 0.227mm(H) x 0.681mum(V) Color pixel arrangement : RGB vertical stripe Display operating mode : Normally black Color depth : 16,777,216 colors ( 8 bits) Brightness (cd/m^2) : 500(Center 1 points, Typ.) Viewing angle(CR>10) : Viewing angle free(R/L 178(Typ.),

U/D 178(Typ.))

Surface treatment : Hard coating(3H),Anti-glare treatment of

the front polarize Electrical interface : LVDS Response Time (ms, Typ) : TrR:8,TrD:10(Gray to Gray) Contrastratio :Typical1100:1withAI Outline Dimension : 1006 mm(H) x 610 mm(V) x 56(D) mm (Typ.) Module weight (g) : 11,800(Typ.) Backlight : 20 CCFL

1.3.2. Power supply AC-input : 90V ~ 264VAC,50/60±2Hz Power consumption : 140W/Typ(at PC mode),220W/Typ

(atTVmode).

Power cord length : 1.8M Power cord type : European type and UK type

Power indicator : LED (On: Blue ,Sleeping mode: Amber ) Auto power saving : < 5W

1.3.3. Horizontal scan : 30 ~ 63KHz

1.3.4. Vertical scan : 50 ~ 75 Hz

1.3.5. Input signals

1.3.5.1 PC Signal type

a. Analog Video : 15 pin D-Sub

0.7 Vp-p linear, positive polarity and

separate Sync ( TTL level, positive or negative polarity )

b. Audio signal : Mini-jack audio input

c. Signal source : Pattern generator format refer to the SPEC

d. Reference generator : CHROMA 2135 or 2250

1.3.5.2 TV Signal type: (Video Model : without RF signal input)

Signal type Video signal Audio signal Remark

Composite Input / Output

SCART connector

Input / output, L /R

SCART connector

R,G,B Input

SCART connector

Input

SCART connector

CVBS Input

RCA connector, Yellow

Share with S-Video

S-Video Input

S-terminal, Black

Input, L/R

RCA connector, white,

Red

Component

Y, Pb, Pr

Input

RCA connector,

Green, Blue, Red

Input, L/R

RCA connector, white,

Red

CVBS Output Output ( from CVBS )

RCA connector, Yellow

Output ( from CVBS ),

L/R

RCA connector, white,

Red

DVI IN Digital TV signal support

HDCP

DVI connector

Input, VGA audio in

RF Signal Antenna input or Cable input * Option

1.3.6 PC input connectors A. PC Analog Video input with D-SUB connector

D-SUB Pin assignment

Signal interface

1.8M 15 Pins, D-SUB male.

Sync polarity

-Hori. sync positive/negative

-Vert. sync positive/negative

PIN No. SIGNAL b(PC)

1Red

2Green

3Blue

4GND

5GND

6RedGND

7GreenGND

8BlueGND

9 +5V (Supply from PC)

10 Sync GND

11 GND

12 Bi-directional data

13 H-sync

14 V-sync

15 Data clock

420WN6 LCD TV

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B. Output analog D-sub connector pin assignment

PIN No. SIGNAL

1 Red_OUT

2 Green_OUT

3 Blue_OUT

4GND

5GND

6RedGND

7GreenGND

8BlueGND

9GND

10 Sync GND

11 GND

12 GND

13 H-sync_OUT

14 V-sync_OUT

15 GND

C. DVI-D : Pin assignment (for PC DVI and Video HDCP)

Signal interface

- 1.8M 24 Pins, DVI-D male.

Signal type - Digital interface with 4 channels TMDS signal

(2) PC Audio input with 3.5 Mini stereo jack

Specification

Audio L/R input

-Nominal :0.5Vrms.

- Maximum : 1.5 V rms.

-Impedance > 10 k ? .

1.3.7 TV video input /output connectors

(1 ) TV Tu ner with RF connector (Option)

TV Input from Aerial or Cable Specification

Pin No. Description

1RX2-

2RX2+

3GND

4GND

5GND

6 DDC clock

7 DDC data

8GND

9RX1-

10 RX1+

11 GND

12 GND

13 GND

14 +5V

15 GND

16 +5V

17 RX0-

18 RX0+

19 GND

20 GND

21 GND

22 GND

23 RXC+

24 RXC-

-AerialorCable

- Impedance 75 ohm.

(2) HD / Com ponent Y Pb Pr with RCA connector ( Video , Audio input )

Specification

Video - Y : 700mV, Pb, Pr, : ± 350mV,

- Impedance : 75ohm

Audio: L/R input

- Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

- Impedance > 10 kohm.

Note : the input will be overloaded when the signal > 1.5 V rms.

(3) S-Video with S terminal (Video, Audio input)

Specification

Video - Y : 1Vpp , C : 300 mV pp

- Impedance : 75ohm.

Audio L/R input (share with Composite Audio input)

-Nominal :0.5Vrms.

- Maximum : 1.5 V rms.

- Impedance > 10 kohm.

Note : the input will be overloaded when the signal > 1.5 V rms.

(4) CVBS inpu t with RCA Jack (Video, Audio input)

Specification

Video - CVBS Source signal 1 Vpp

- Impedance : 75ohm.

Audio L/R input (share with S-Video Audio input)

-Nominal :0.5Vrms.

- Maximum : 1.5 V rms.

-Impedance > 10 kohm.

Note : the input will be overloaded when the signal > 1.5 V rms.

(5) CVBS output with RCA Jack (Video, Audio output

from CVBS source)

Specification

Video - CVBS output. 1 Vpp ( from TV Tuner )

- Impedance : 75ohm.

Audio L/R output ( from TV Tuner )

- Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

-Impedance < 1Kohm.

(6) SCART ( Video , Audio input /output ) this is for WE model only

Specification

Video - CVBS Source signal 1 Vpp

Impedance : 75ohm.

-Y:1Vpp,C :300mVpp Impedance : 75ohm.

- RGB source signal 1Vpp Impedance : 75ohm

Audio L/R input (share with S-Video Audio input )

- Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

-Impedance > 10 kohm.

(7) DVI input with DVI connector, support HDCP

Specification

Video - Digital interface with 4 channels TMDS signal

- Impedance : 100ohm.

Audio L/R input

- Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

-Impedance > 10 Kohm.

(8) Headphone with 3.5 mm stereo jack

Specifications : L/R Output

10 mW / 32 ohm

Note : Headphones with impedance between 8 ~ 600ohm

when headphone plug is connected, loudspeaker

sound is muted.

Technical Data

Installation

420WN6 LCD TV

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Side View(left)

1 INPUT Selecting input source

2. Increase or decrease the channelnumberor

moving up or down to highlight thefunction in OSD

3. Increase or decrease the levelof audio volume or

moving left or right to highlight the sub-menu in the

selected function of OSD

4. Openthe OSDorconfirm the selected function

5. DC powerswitch On/Off

Side View(Right)

1Audio input for composite input Audio (leftand right) in put for

compo site signal in put. 2 Composite input Composite(CVBS) signal input 3 S-Video input S-Video signal input 4 Earphone output Earphone output 5TVtunerTVtuner input (available in TV

version only)

Rear View

1 ACin ACpowerin

2ACpowerACpowerswitch

3 Speakers output External speakers output

4D-Sub output PC analog D-Sub output

5 DVI-D input PC digital input

6D-Sub input PC analog D-Sub input

7 RS232 input RS232 network connection Input

8 RS232 output RS232 network conne ction output for the use of

loop through function

9PCaudio PC stereoaudio input

10 Audio input for component signal Audio (leftand right) input

for component signal input

11 Component input Component (YPbPr ) signal input

12 Composite output Composite(CVBS) output for the use

of loop through function

13 Audio output for composite output Audio (leftand right) out put

for compo site signal out put.

14 External / EURO-AV SCARTconnection (for the use of

European modelonly)

15 Kensington lock Kensington lock

420WN6 LCD TV

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Installation

Accessory Pack

Unpack all the parts

Power cable Remote control &batteries

DVI-D Cable VGA signal cable

Setting up and connecting your monitor/TV

CAUTION: Ensure that the power to the monitor/TV is switched off before The installation.

- Connecting the monitor/TV

l Connect the cables to the rear of your monitor/TV according to the numbers:

TV mo del

-Connect toPC

l Connect the cables to the back of your computer by following step 1~5. l If your monitor displays the computer image the installation has been completed successfully. l If installation was not successful, see the Troubleshooting section. l For installation of the monitor driver for Microsoft Windows® , see the Monitor Driver Installation section

(Getting Started).

- Connect to DVD/VCD/VCR

Connect to DVD/VCR/VCD throu gh S-VIDEO

l Connect to DVD/VCR/VCD through S-VIDEO

Connect to DVD/VCR /VCD through SCART (for Europe only)

Connect to DVD/VCR /VCD through composite video (CVBS)

Connect to DVD/VCR /VCD through component video (YPbPr)

Installation

420WN6 LCD TV

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Connecting to Cable TV

Antenna

Progressive video and HDTV connections for digital high-definition picture

420WN6 LCD TV

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Philips' LCD Panel Pixel Defect Policy

Philips strives to deliver the highest quality products.We use some of the industry's most advanced manufacturing processes and practise stringent quality control. However, pixel or sub pixel defects on the TFT LCD panels used in flat panel monitors are sometimes unavoidable. No manufacturer can guarantee that all panels will be free from pixel defects, but Philips guarantees that any monitor with an unacceptable number of defects will be repaired or replaced under warranty. This notice explains the different types of pixel defects and defines acceptable defect levels for each type. In order to qualify for repair or replacement under warranty, the number of pixel defects on a TFT LCD panel must exceed these acceptable levels. For example, no more than 0.0004% of the sub pixels on a 15" XGA monitor may be defective. Furthermore,Philips sets even higher quality standards for certain types Or combinations of pixel defects that are more noticeable than others. This policy is valid worldwide. Pixels and Sub pixels A pixel, or picture element, is composed of three sub pixels in the primary colors of red, green and blue. Many pixels together form an image. When all sub pixels of a pixel are lit, the three coloredsubpixels together Appear as a single white pixel. When all are dark, the three colored sub pixels together appear as a single black pixel. Other combinations of lit and dark sub pixels appear as single pixels of other colors.

Types of Pixel Defects Pixel and sub pixel defects appear on the screen in different ways. There are two categories of pixel defects and several types of sub pixel defects within each category.

Bright Dot Defects Bright dot defects appear as pixels or sub pixels that

are always lit or 'on'. That is, a bright dot is a sub-pixel that stands out on the screen when the monitor displays a dark pattern. There are the types of bright dot defects:

One lit red, green or blue

sub pixel

Twoadjacentlitsubpixels:

- Red + Blue = Purple

- Red + Green = Yellow

- Green + Blue = Cyan (Light Blue)

Three adjacent lit sub

Pixels (one white pixel)

A red or blue bright dot must be more than 50 percent brighter than neighboring dots while a green bright dot is 30 percent brighter than neighboring dots.

Black Dot Defects Black dot defects appear as pixels or sub pixels that

are always dark or 'off'. That is, a dark dot is a sub-pixel that stands out on the screen when the monitor displays a light pattern. These are the types of black dot defects:

One dark sub pixel Two or three adjacent dark sub pixels

Proximity of Pixel Defects Because pixel and sub pixels defects of the same type that are near to one another may be more noticeable, Philips also specifies tolerances for the proximity of pixel defects. Pixel Defect Tolerances In order to qualify for repair or replacement due to pixel defects during the warranty period, a TFT LCD panel in a Philips flat panel monitor must have pixel or sub pixel defects exceeding the tolerances listed in the following tables.

BRIGHT DOT DEFECTS ACCEPTABLE LEVEL

MODEL

420WN6

1litsubpixel 0

2 adjacent lit sub pixels 0

3 adjacent lit sub pixels (one white pixel) 0

75% ~ 50% of Dot 0

50% ~ Less Dot (Weak Dot) Max 7

Distance between two bright dot defects* N/A

Total bright dot defects of all types 0

Tiny bright dots less then 50% R/B, 30% G Ma

Max4

*Bright Dot is defined as dots (sub-pixels) which appeared brightly in the screen when the LCM displayed with whole pattern & Bright Dot's brightess is defined over 50% of the brightness against around. (but, Green bright dot is over 30% of brightness against around) *Here in Tiny Bright Dot is defined as "for Red and Blue" the bright area should be no longer than1/2 sub-pixel and for green the bright area should be no larger than 1/3 sub-pixel.

BLACK DOT DEFECTS ACCEPTABLE LEVEL

MODEL 420WN6

1 dark sub pixel 5 or fewer

2 adjacent dark sub pixels 1 or fewer

3 adjacent dark sub pixels 0

Distance between two black dot defects* 15 mm or more

Total black dot defects of all types 5 or fewer

TOTAL DOT DEFECTS

ACCEPTABLE L EVEL

MODEL

420WN6

Total bright or black dot defects of all types 5 or fewer

Note:

* 1 or 2 adjacent sub pixel defects = 1 dot defect

All Philips monitors are ISO13406-2 Compliant

Philips Pixel Defect Policy

On Screen Display

420WN6 LCD TV

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PICTURE

SMART PICTURE FEATURES

NORMAL PIP

WARM SIZE

COOL

OFF

PC MAIN MENU

BRIGHTNESS SMALL

CONTRAST MEDIUM

AUTO ADJUST LARGE

YES

PBP

STORE VIDEO

YES

NO AV

MANUAL ADJUST S-VIDEO

PHASE

EXT

CLOCK AUDIO

HORIZON

TAL

VERTICA

PIP

DISPLAY

AUDIO

ICON1

SMART SOUND ICON2

MUSIC SOURCE ICON3

THEATRE

ICON4

NEWS DVI

PERSONA

L TV

SETTINGS AV

TREBLE S-VIDEO

BASS HD

BALANCE

EXT

VIRTUAL

SURROUND ZOOM

ON ZOOM ID

OFF ZOOM TYPE

AVL

OFF

YES 4X4

NO INSTALL 3X3

LANGUAGE 2X2

ENGLISH

1X5

DEUTSCH

FRANÇAIS

1.pc signal control

On Screen Display

Magnavox LCD TV

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PICTURE INSTALL

SMART PICTURE LANGUAGE

SPORTS

ENGLISH

MOVIES DEUTSCH

WEAK SIGNAL FRANÇAIS

TV MAIN MENU

NIGHT ITALIANO

MULTIMEDIA ESPAÑOL

PERSONAL

BRIGHTNESS MONITOR ID

CONTRAST DCR

COLOR

SHARPNESS

OFF

TINT LIGHT SENSOR

AUDIO

SMART SOUND

OFF

MUSIC REMOTE CONTROL

THEATRE

NEWS

OFF

PERSONAL FACTORY RESET

SETTINGS

TREBLE

YES

BASS

BALANCE SETUP

VIRTUAL SURROUND AUTO PROGRAM

ON START

OFF MANUALSTORE

AVL SYSTEM

YES

FRANCE

FEATURES

WEST EUROPE

SOURCE

MANUAL

STORE

DVI

HDCP

PROGRAM

NUMBER

TV FINE TUNE

AV STORE

S-VIDEO YES

HD STORE

EXT

YES

PICTURE FORMAT CHANNEL SETTING

AUTOMATIC

CHANNEL

EDIT

4:3 CHANNEL

ZOOM 16:9 SKIP

WIDESCREEN

ACTIVATE

SUPER WIDE

SKIP

PICTURE

ALIGNMENT

CHANNEL

SWAP

AUTO LOCK FROM

LOCK PROGRAM TO

CHANGE CODE EXCHANGE

YES EXCHANGED

2.TV signal control WE/AP/China

On Screen Display

420WN6 LCD TV

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PICTURE SETUP

SMART PICTURE TUNER MODE

SPORTS

ANTENNA

BRIGHTNESS MOVIES CABLE

CONTRAST WEAK SIGNAL

AUTO

TV MAIN MENU

COLOR NIGHT AUTO PROGRAM

SHARPNESS MULTIMEDIA START

TINT

PERSONAL CHANNEL EDIT

AUDIO CHANNEL

SMART SOUND

MUSIC SKIP

THEATRE

ACTIVATE

NEWS

SKIP

PERSONAL MANUAL F INE TUNE

SETTINGS RATING

TREBLE BLOCK OPTION

BASS

BALANCE

OFF

VIRTUAL SURROUND

ON MOVIE RATING

OFF G

AVL

YES

OFF

NO PG

FEATURES

PC PG13

SOURCE

DVI

HDCP R

TV NC17

AV X

S-VIDEO

HD TV RATING

EXT TV Y

TV Y7

PICTURE FORMAT

AUTOMATIC BLOCK

4:3 FV

ZOOM 16:9 TV G

WIDESCREEN TV PG

SUPER WIDE BLOCK

PICTURE ALIGNMENT V

AUTO LOCK S

LOCK PROGRAM L

CHANGE CODE D

YES TV 14

CLEAR ALL BLOCK

ON V

ZOOM

OFF S

ZOOM ID L

ZOOM TYPE

OFF D

INSTALL 4X4 TVMA

LANGUAGE

ENGLISH 3X3 BLOCK

DEUTSCH 2X2 V

FRANÇAIS

1X5 S

ITALIANO L

ESPAÑOL CLOSED CAPTION

NAFTAMODE

420WN6 LCD TV

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AGING...

After 55 seconds, bring up:

After 5 seconds, bring up:

AGING...

After 55 seconds, bring up:

----------

---------repeatly Connect Signal cable again=> go back to normal display

Access Aging.. Mode

Step 1 : Select the source "PC" and then turn off LCD-TV, and disconnect

Interface Cable between Monitor and PC.

Step 2 : [Push "power " button and then push the "Left " and "Right"

buttons at the same time immediately and hold it] untill comes out " AGING screen" then release all buttons.

Bring up:

OSDLock

OSD function can be locked by

· Pressing Menu button for more than 10 seconds while there is

video signal in. The screen automatically shows OSD MAIN MENU

LOCKED for 3 seconds.

When users press Menu button, OSDLock MENU will appear,

and the default cursor location will be on unlock.

OSD can be unlocked by

· Pressing front panel Menu button for more than 10 seconds

while there is video signal in. As the menu button is pressed, the

screen will keep showing OSD MAIN MENU LOCKED until OSD

function unlocked. Then, OSD MAIN MENU UNLOCK will

automatically show for 3 seconds.

Aging Mode/OSD LOCK/UNLOCK

Factory Mode

420WN6 LCD TV

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Access factory. Mode how to get into factory mode menu Step 1 :Select the source "PC" andthen turn off LCD-TV.

Step 2 : [Push "power "button andthen push the "VOL-"and "VOL+"

buttons at the sametime immed

iatelyand hold it] about five seconds

then releaseall buttons.

Press "menu"button and bringupfactory mode indication asshown in Fig.1

Usethe "UP" and "DOWN" to select the "last line" andthenpre

the "Right"button

MAINCONTROLS

SMART PICTURE AUDIO BRIGHTNESS FEATURES CONTRAST INSTALL AUTOADJUST

MANUAL ADJUST

NEWMODE

PICTURE

BDS 32*420WN6 EU VO.42.60505OLC 32 *A6K3*A1

Fig.1

Menu Item Description

Scalar Gain R G B Scalar Gain for Normal/Warm/CoolinPC

mode.

Auto-Color Adjustcolor from received signal (either in

PCorHDTV mode).

ADC Offset RGB Adjust AD 9883 for PC ADC offset.

ADC Gain R G B Adjust AD 9883 for PC ADC gain.

PC Offset RGB PCanalogscalar offset.

711X SDTV Brightness Adjust SA 7119 SDTV brightness.

711X SDTV SAT.Adjust SA 7119 SDTV saturation.

711X SDTV Contrast Adjust SA 7119 SDTV contrast.

711X SDTV TINT Adjust SA 7119 SDTV tint(hue).

TV Shift H V AdjustTV screenposition

horizontally/vertically.

HD Shift H V Adjust HDTV screenposition

horizontally/vertically.

Show Lock Message ShowOSD lock message.

HDTV ADC Offset RGB Adjust AD 9883 for HDTV ADC offset.

HDTV ADC Gain R G B Adjust AD 9883 for HDTV ADC gain.

Video Scalar Gain R G B Adjust scalar gain for Video mode.

Scalar Hue Adjust scalar hue.

Warning Message

420WN6 LCD TV

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1.Automatic adjustment (for factory only) Press Volume+ and Volume- on front key at the same time (PC mode only). It adjusts PC image to the best and save the screen automatically.

2.OUTOFRANGE If PC input timing is out of range, it shows OUT OF RANGE warning message on the center of the screen. The range of horizontal frequency is between 14 - 63 KHz. The range of vertical frequency is between 45 - 76 Hz. The OSD won t timeout.

3.NO VIDEO INPUT When PC input timing has either horizontal frequency or vertical frequency. Or neither has horizontal frequency nor vertical frequency. It shows on the center of the screen for 30 seconds, then it will enter sleep mode.

Trouble Shooting

420WN6 LCD TV

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Common Problems

Symptoms Having this problem? Check these items

No Video/ Power

LED off

No picture, the LCD

Monitor TV is not

working

*Check connection integrity at both ends of the video cable

and/or power cord.

* Electric outlet verification

* Ensure AC power at the rear of the monitor TV is switched on.

No Video/ Power

LED on

No picture or no

brightness

*Increase brightness and contrast controls.

* Perform the LCD Monitor TV self-test feature check.

* Check for bent or broken pins in video cable connector.

Poor Focus Picture is fuzzy,

blurry or ghosting

*Auto adjust image through Menu -> Image Setting -> Auto

Adjust.

*Adjust Phase and Clock controls via OSD.

*Eliminate video extension cables.

*Perform the LCD Monitor TV factory reset (via Menu -> Factory

Reset -> All Settings).

*Lower video resolution or increase font size.

Shaky/Jittery Video Wavy picture or

fine movement

*Auto adjust image through Menu -> Image Setting -> Auto

Adjust

*Adjust Phase and Clock controls via OSD

*Perform the LCD Monitor TV factory reset (via Menu -> Factory

Reset -> All Settings)

*Check environmental factors

*Relocate and test in other room

Missing Pixels LCD screen has spots *Cycle power on-off

* These are pixels that are permanently off and is a natural

defect that occurs in LCD technology

Stuck-on Pixels LCD screen has

bright spots

*Cycle power on-off

* These are pixels that are permanently on and is a natural

defect that occurs in LCD technology

Brightness Problems Picture too dim or

too bright

*Perform the LCD Monitor TV factory reset (via Menu -> Factory

Reset -> All Settings)

*Auto adjust image through Menu -> Image Setting -> Auto

Adjust

*Adjust brightness & contrast controls

Note: When operating in DVI mode, the

contrast adjustment is not available.

420WN6 LCD TV

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Trouble Shooting

Geometric Distortion Screen not

centered correctly

*Perform the LCD Monitor TV reset on "Position Settings Only"

*Auto adjust image through Menu -> Image Setting -> Auto

Adjust

*Adjust the centering controls

*Ensure the LCD Monitor TV is in proper video mode

Note: When operating in DVI mode, the

positioning

adjustments are not available.

Horizontal/Vertical

Lines

Screen has one or

more lines

*Perform the LCD Monitor TV reset

*Auto adjust image through Menu -> Image Setting -> Auto

Adjust

*Adjust Phase and Clock controls via OSD

*Check for bent or broken pins in the video cable connector

Note: When operating in DVI mode, the Pixel

Clock and Phase

adjustments are not available.

Sync Problems Screen is

scrambled or

appears torn

*Perform the LCD Monitor TV reset

* Push Auto Adjust button

* Adjust Phase and Clock controls via OSD

* Check for bent or broken pins

* Boot up in the "safe mode"

LCD Scratched Screen has scratches

smudges

*Turn the LCD Monitor TV off and clean the screen

Safety Related

Issues

Visible signs of

smoke or sparks

*Do not perform any troubleshooting steps

*The LCD Monitor TV needs to be replaced

Intermittent Problems The LCD Monitor

TV malfunctions

on & off

*Ensure the LCD Monitor TV is in proper video mode

* Ensure video cable connection between computer and the

LCD monitor TV is secured

*Perform the LCD Monitor TV factory reset (via Menu ->

Factory Reset -> All Settings)

* Perform the LCD Monitor TV self-test feature check to

determine if the intermittent problem occurs in self-test mode

TV and Audio Problems

Poor TV signal

reception

Abnormal picture

seen from the

screen

*The proximity of mountains or high buildings may be

responsible for ghost pictures, echoing or shadows. In this

case, try manually adjusting your pictures: see 'fine tuning' or

adjust the direction of the outside aerial.

Trouble Shooting

420WN6 LCD TV

Go to cover page

No TV picture No picture when

TV input was

selected

*Have you connected the aerial socket properly? Have you

chosen the right system? Poorly connected SCART cables or

aerial sockets are often the cause of picture or sound problems

(sometimes the connectors can become half disconnected if the

LCD Monitor TV set is moved or turned). Check all

connections.

No sound No sound output

when a program

with sound was

playing

*Ensure that the audio cables are firmly connected to both the

audio input connectors on your the LCD Monitor TV and audio

output connectors on your PC or Video player.

*If on certain TV channels you receive a picture but no sound,

this means that you do not have the correct TV system. Modify

the SYSTEM setting.

Video Problems

No Video No signal indicator

is displayed.

*Check Video Input Selection

Composite: Yellow colored RCA jack

S-Video: Typically a round 4 pin jack

Component: Typically 3 RCA jacks of Green, Red and Blue.

*Make sure you did not plug the video cable to video output port

behind the LCD monitor TV.

Low Quality DVD

playback

Picture not crisp

and some color

distortion

*Check DVD connection

Composite gives good picture

S-Video gives better picture

Component gives best picture

No sound See video but no

audio

*Check if the LCD Monitor TV volume is turn off of muted.

*Connect the audio cable securely.

*Audio cable is connected incorrectly.

*Verify that the audio source is selected correctly in the OSD.

Remote Control Problems

Remote control does

not work properly

No response from

the LCD Monitor

TV when remote

is pressed

*Point the remote control directly at the remote sensor on the

LCD Monitor TV.

* Replace both batteries with new ones.

* Make sure the remote control is not disabled (for

disable/enable the remote control, please refer to the section of

Remote Control).

Produc t Spec ific Pr obl ems

Screen image is too

small

Image is centered

on screen, but

does not fill entire

viewing area

Perform the LCD Monitor TV factory reset (via

Menu -> Factory Reset -> All Settings).

Cannot adjust the

LCD Monitor TV with

the buttons at the

side of the unit

OSD does not

appear on the

screen

Turn the LCD Monitor TV off and unplug the

power cord and then plug back and power on.

420WN6 LCD TV

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Failure description

Phenomenon

Vertical block defect

Vertical dim lines

Vertical lines defect (Always bright or dark)

Horizontal block defect

Horizontal dim lines

Horizontal lines defect (Always bright or dark)

Has bright or dark pixel

Polarizer has bubbles

Foreign material inside polarizer. It shows liner or dot shape.

Concentric circle formed

Bottom back light of LCD is brighter than normal

Back light un-uniformity

Backlight has foreign material. Black or white color, liner or circular type

Quick reference for failure mode of LCD panel

this page presents problems that could be made by LCD panel. It is not necessary to repair circuit board. Simply follow the mechanical instruction on this manual to eliminate failure by replace LCD panel.

Failure Mode Of Panel

420WN6 LCD TV

Go to cover page

All units that are returned for service or repair must pass the original manufactures safety tests. Safety testing requires both

and testing.Hipot Ground Continuity

HI-POT TEST INSTRUCTION

1.Application requirements

1.1 All mains operated products must pass the Hi-Pot test as described in this instruction.

1.2This test must be performed again after the covers have been refitted following the repair, inspection or modification of the product.

2.1Connecting conditions

2.1.1The test specified must be applied between the parallel-

blade plug of the mainscord and all accessible metal parts of the product.

2.1.2 Before carrying out the test, reliable conductive

connections must be ensured and thereafter be maintained throughout the test period.

2.1.3 The mains switch(es) must be in the "ON" position.

2.2Test Requirements

All products should be HiPot and Ground Continuity tested as follows:

Test 2820VDC 1700VDC Test current:

voltage (2000VAC)(1200VAC) 25A,AC

Test time:

Test time 3 seconds 1 second 3 seconds(min.)

(min.) Resistance

required: Trip set at 100 uA 5 mA <=0.09+Rohm, current for Max. R is the (Tester) limitation; set resistance of

at 0.1 uA for the mains cord.

Min. Limitation Ramp set at 2 time seconds (Tester)

Test method

Condition HiPot Test for HiPot Test for Ground Continuity

products where products where Test requirement

the mains input the mains input is

range is Full 110V AC(USA

range(or 220V type)

AC)

2.2.1The minimum test duration for Quality Control Inspector must be 1 minute.

2.2.2The test voltage must be maintained within the specified voltage + 5%.

2.2.3 There must be no breakdown during the test.

2.2.4The grounding blade or pin of mains plug must be

conducted with accessible metal parts.

3. Equipments and Connection

3.1. Equipments For example :

- ChenHwa 9032 PROGRAMMABLEAUTO SAFETY

TESTER

- ChenHwa 510B Digital Grounding Continuity Tester

- ChenHwa 901 (AC Hi-pot test), 902 (AC, DC Hi-pot test)

Withstanding Tester

3.2. Connection

4. Recording

Hipot and Ground Continuity testing records have to be kept for a period of 10 years.

* Turn on the power switch of monitor before Hipot and

Ground Continuity testing.

Connect the "video cable" or "grounding screw" to the CLIP onyourtester.

Video cable

(Rear view of monitor)

Connect thepower cord to the monitor.

Grounding screw

Power outlet

(ChenHwa 9032 tester)

Clip

420WN6 LCD TV

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Mechanical Instructions

Front View

Back view

Remove the base, unscrew the screws

Remove all the screws on the four sides

After unscrew all the screws ,rise the back cover slowly and carefully then you will see the following picture. you should disconnect all the connector carefully and the remove the back cover.

Remove the scaler board and power board and TV BOX

Unscrew all the screws and disconnect the connectors on the power

board and unscrew the screws on the side as shown in following

Mechanical instructions

420WN6 LCD TV

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Then removethepower board

Remove the scaler board:

-unscrew all the screwsonthescalerboard and on the side

-disconnect the connectors

-then remove the scaler board and the TV BOX

After you removetheTVBOX then unscrew the screws

Unscrew the screwsand open the click to remove the control board

420WN6 LCD TV

Go to cover page

Electrical Instructions

1. General points

1.1During the test and measuring, supply a distortion free AC mains voltage to the apparatus via an isolated transformer with low internal resistance.

1.2 All measurements mentioned hereafter are carried out at a Normal mains voltage (90 - 142 VAC for NAFTA version, 195 -264 VAC for EUROPEAN version, or 90 - 264 VAC for the model with full range power supply, unless otherwise stated.)

1.3 All voltages are to be measurement or applied with respect to ground, unless otherwise stated.

1.4 The test has to be done on a complete set including LCD panel in a room with temperature of 25 +/- 5 degree C.

1.5 All values mentioned in these test instruction are only applicable of a well aligned apparatus, with correct signal.

1.6 The letters symbols (B) and (S) placed behind the test instruction

denotes (B): carried out 100% inspection at assembly line (S): carried out test by sampling

1.7 The white balance (color temperature), has to be tested in subdued lighted room.

1.8 Repetitive power on/off cycle are allowed except it should be

avoided within 6 sec.

2. Input and output signal

2.1.1 PC Signal type a.Analog Video : 15 pin D-sub ,0.7 Vp-p linear, positive

polarity & separate sync.( TTL level, positive or negative polarity)

b.Digital Video : DVI-Digital interface with 4 channels TMDS signal

c.Audio signal : 3.5mm stereo mini-jack

Level: Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

-Impedance > 10 k ohm.

d.Signal source: Pattern generator format as the SPEC.

Reference generator : CHROMA 2200 or 2250

2.1.2 TV Signal type(Video Model: w/o RF signal input ) RF Signal : Aerial input / 10mV(80dBuV) Video signal : CVBS input ( RCA jack) / 1Vpp (300mV-sync,

700mV-video.)

S video input / 1VppY-signal, 300mVpp C-signal

SCARTx1: CVBS, RGB signal

HD in(YPbPr input)/ 1Vpp Y signal, 350mVpp Pb,Pr signal

HDCP:Digital interface with 4 channels TMDS signal

Audio signal : Audio (1) R/L for AV IN(AV and S-Video).

Level: - Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

- Impedance > 10 kohm.

Audio (2) R/L for SCART IN

Level: - Nominal : 0.5 V rms.

- Maximum : 1.5 V rms. Impedance > 10 k ohm.

Audio (3) R/L for HD Video IN.

Level: - Nominal : 0.5 V rms.

-Maximum : 1.5 V rms.

- Impedance > 10 k ohm.

2.1.3 CVBS output: Video: CVBS output 1Vpp / Impedance : 75ohm

Audio: R/L output (from CVBS)

Level: - Nominal : 0.5 V rms.

- Maximum : 1.5 V rms.

- Impedance < 1 kohm.

2.1.4 Headphone Audio: R/L output -10mW at 32ohm.

3.5mm stereo jack with switch

Impedance is between 8 and 600 ohm.

2.2 PC Input signal mode

2.2.1 PRESET VIDEO RESOLUTION

The analogue color LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 50 - 75 Hz, and horizontal scan range of 30 - 63 KHz .

Use the CHROMA-2250 generator as the standard signal timing source.

Dot rate

(MHz)

H.freq

(KHz)

Mode Resolution V.freq

(Hz)

Remark

1 25.175 31.469 VGA-1 640*350 70.086

2 25.175 31.469 IBM VGA 640 * 480 59.940

3 31.500 37.500 VGA 640 * 480 75.000

4 28.322 31.469 VGA 720*400 70.087

5 36.000 35.156 VESA 800 * 600 56.250

6 40.000 37.879 VESA 800 * 600 60.317

7 49.500 46.875 VESA 800 * 600 75.000

8 65.000 48.363 VESA 1024 * 768 60.004

9 78.750 60.023 VESA 1024 * 768 75.029

10 74.500 47.772 WXGA 1280 * 720 59.855 CVT

11 79.500 47.776 WXGA 1280 * 768 59.870 CVT

12 84.75 47.720 VSEA 1360 * 768 59.799 CVT

Resolution recommend on 1360x768 @ 60Hz

Remark:Mo de 1,3,4,5,7,9,11 will run aut o adjustmen t only , and W/O QA check ing

2.3 TV input signal Channel and pattern

2.3.1 Table 2.3.1 for NAFTA model

Signal Distribution Table (NTSC)

Frequenc y Carrier s

Video So und

TV System

Pattern

A03 61.25MHz 65.75MHz NTSC M Color Circle

A06 83.25MHz 87.75MHz NTSC M Red Raster

A09 187.25MHz 191.75MHz NTSC M Circle Pattern

A11 199.25MHz 203.75MHz NTSC M Cross Hatch

A13 211.25MHz 215.75MHz NTSC M

Two White

Window

A52 699.25MHz 703.75MHz NTSC M Color Bar

A69 801.25MHz 805.75MHz NTSC M 100% White

C70 499.25MHz 503.75MHz NTSC M Checkerboard

Table 2.3.1

Electrical Instructions

420WN6 LCD TV

Go to cover page

2.3.2 Table 2.3.2 f or WE m odel Signal Distribution Table ( PAL )

Frequenc y Carrier s

PRG CH

Video Sound

TV System

Pattern

1 AU37 590.25MHz 595.75MHz PAL B(UK) Pure White

2 AU2 64.25MHz 69.75MHz PAL B(UK) Circle Pattern

3 E7 189.25MHz 194.75MHz

PAL B (CCIR)

Circle Pattern

4 G47 679.25MHz 684.75MHz

PAL G (CCIR)

Circle Pattern

5 I23 487.25MHz 493.75MHz

PAL I

(UK)

Circle Pattern

6 E12 224.25MHz 229.75MHz

PAL B (CCIR)

Color Bar

7 AU7 182.25MHz 187.75MHz

PAL B

(UK)

Color Bar

8 G68 847.25MHz 852.75MHz

PAL G

(CCIR)

100% White

9 AU9 196.25MHz 201.75MHz

PAL B

(UK)

Checkerboard

AU10 209.25 MHz 214.75 MHz

PAL B

(UK)

Crosshatch

11 AU0 46.25MHz 51.75MHz

PAL B

(UK)

Color Bar

12 AU2 64.25MHz 69.75MHz

PAL B

(UK)

Color Bar

13 AU5 102.25 MHz 107.75 MHz

PAL B

(UK)

Crosshatch

14 AU5A 138.25MHz 143.75MHz

PAL B

(UK)

Color Bar

15 AU7 182.25MHz 187.75MHz

PAL B

(UK)

Pure White

16 AU9 196.25MHz 201.75MHz

PAL B

(UK)

Pure White

17 AU10 209.25MHz 214.75MHz

PAL B

(UK)

Circle Pattern

18 I23 487.25MHz 493.75MHz

PAL I

(UK)

Circle Pattern

19 G28 527.25MHz 532.75MHz

PAL G (CCIR)

Circle Pattern

20 AU37 590.25MHz 595.75MHz

PAL G

(UK)

Circle Pattern

21 I40 623.25MHz 629.75MHz

PAL I

(UK)

Color Bar

22 CH44 655.25MHz 661.75MHz

PAL DK

(UK)

Color Bar

23 I60 783.25MHz 789.75MHz

PAL I

(UK)

100% White

24 I66 831.25MHz 837.75MHz

PAL I

(UK)

Checkerboard

25 K21 471.25 MHz 477.75 MHz

SEC K1

(CCIR)

Crosshatch

28 G28 527.25MHz 532.75MHz

PAL G

(UK)

Color Bar

Table 2.3.2

2.3.3 Table 2.3.3 for AP-Multi model

Signal Distribution Table (PAL and NTSC)

Frequenc y Carrier s

PRG CH

Video Sound

TV System

Pattern

1 AU37 590.25MHz 595.75MHz PAL B(UK) Pure White

2 AU2 64.25MHz 69.75MHz PAL B(UK) Circle Pattern

3 E7 189.25MHz 194.75MHz

PAL B

(CCIR)

Circle Pattern

4 G47 679.25MHz 684.75MHz

PAL G

(CCIR)

Circle Pattern

5 I23 487.25MHz 493.75MHz

PAL I

(UK)

Circle Pattern

6 M58 735.25MHz 739.75MHz

NTSC M

(CCIR)

Color Bar

7 AU7 182.25MHz 187.75MHz

PAL B

(UK)

Color Bar

8 K21 471.25MHz 477.75MHz

PAL G

(CCIR)

100% White

9 AU9 196.25MHz 201.75MHz

PAL B

(UK)

Checkerboard

10 AU10 209.25 MHz 214.75 MHz

PAL B

(UK)

Crosshatch

11 E12 224.25MHz 229.75MHz

PAL B

(CCIR)

Color Bar

12 G34 575.25MHz 580.75MHz

PAL G

(CCIR)

Color Bar

13 G62 799.25 MHz 804.75 MHz

PAL G

(CCIR)

Crosshatch

14 C4 77.25MHz 83.75MHz

PAL D

(CCIR)

Color Bar

28 G28 527.25MHz 532.75MHz

PAL G

(UK)

Color Bar

2.3.4 TV Table 2.3.4 for Chi na model Signal Distribution Table (PAL D) table 2.3.4

Frequenc y Carrier s

PRG CH

Video Sound

TV System

Pattern

1 C4 65.25MHz 71.75MHz PAL D

(CCIR)

Full Write

2 E7 184.25MHz 190.75MHz PAL D

(CCIR)

Circle

Pattern

3 E12 224.25MHz 230.75MHz

PAL D (CCIR)

Color Bar

4 K21 471.25MHz 477.75MHz PAL D

(CCIR)

Full Write

5 G34 511.25MHz 517.75MHz PAL D

(CCIR)

Circle

Pattern

6 G62 547.25MHz 553.75MHz

PAL D (CCIR)

Color Bar

7 M58 551.25MHz 557.75MHz PAL D

(CCIR)

Crosshatch

8 G47 615.25MHz 621.75MHz

PAL D (CCIR)

Color Bar

420WN6 LCD TV

Go to cover page

Electrical Instructions

2.4 HD input mode

2.4.1 HD detail timing

(For Quantune Data setting with Q801GD or 802G in YpbPr mode)

Item 1920X108

0i 60Hz

1280X720P 60Hz

1920X1080i 50Hz

1280X720 P

50Hz Pixel rate

74.25MHz (13.468 ns)

74.25MHz ( 13.468ns )

74.25MHz

(13.468

ns) Horizont al Frequen cy

33.75KHz 45KHz 28.125KHz 37.5KHz

Active 1920

pixels

(25.859

us)

1280 pixels

(17.239 us)

1920 pixels

(25.859 us)

1280

pixels

(17.239

us) Blank 280 pixels

(3.771 us)

370 pixels

(4.983 us)

720 pixels

( 9.697 us )

700 pixels

(9.428 us)

Period 2200

pixels

(29.630

us)

1650 pixels

(22.222 us)

2640 pixels

( 35.556

us )

1980

pixels

(26.667

us)

Pulse delay

44 pixels

(0.593 us)

70 pixels

(0.943 us)

484 pixels

( 6.519 us )

400 pixels

(5.387 us) Pulse width

44 pixels

(0.593 us)

40 pixels

(0.539 us)

44 pixels

( 0.593 us )

40 pixels

(0.539 us) Vertical Frequen cy

60 Hz 60 Hz 50 Hz 50 Hz

Active 1080 lines

(42.000

ms)

720 lines

(16.0 ms)

1080 lines

( 38.4 ms )

720 lines

(19.2 ms)

Blank 45 lines

(1.333

ms)

30 lines

(0.667 ms)

45 lines

(1.6 ms )

30 lines

(0.8 ms)

Period 1125 lines

(33.333

ms)

750 lines

(16.667 ms)

1125 lines

(40ms)

750 lines

(20 ms)

Pulse delay

2 lines

(0.059

ms)

5 lines

(0.111 ms )

2 lines

( 0.071 ms )

5 lines

(0.133

ms ) Pulse width

5 lines

(0.148

ms)

5 lines

(0.111 ms)

5 lines

(0.178 ms )

5 lines

(0.133

ms) EQ before

0 line 0 line 0 line 0 line

EQ after 1 line 0 line 1 line 0 line Scan Interlace Progressive Interlace Progressiv

e Sync type

ACS ACS ACS ACS

Video kind

Analog YPbPr (ITU-R BT.709)

Analog YPbPr (ITUR BT.709)

Analog YPbPr (ITURBT.709)

Analog

YPbPr

(ITU-R

BT.709)

Item 720X576P

50Hz

720X480P 60Hz

720X576i 50Hz

720X480i 60Hz

Pixel rate 27 MHz

(37.037

ns)

27.027MHz (37.000 ns)

13.5MHz ( 74.074 ns )

13.5MHz ( 74.074

ns ) Horizontal Frequency

31.25 KHz 31.5KHz 15.625KHz 15.734KHz

Active 720 pixels

(26.667

us)

720 pixels

(26.640

us)

720 pixels

(53.333 us)

720 pixels

(53.333

us)

Blank 144 pixels

(5.333 us)

138 pixels

(5.106 us)

144 pixels

( 10.667

us )

138 pixels

( 10.222

us )

Period 864 pixels

(42.000

us)

858 pixels

(31.746

us)

864 pixels

( 64.00 us )

858 pixels

( 63.556

us )

Pulse delay

12 pixels

(0.444 us)

16 pixels

(0.592 us)

12 pixels

( 0.889 us )

19 pixels

( 1.407 us ) Pulse width

64 pixels

(2.370 us)

62 pixels

(2.294 us)

63 pixels

( 4.667 us )

62 pixels

( 4.593 us ) Vertical Frequen cy

50 Hz 60 Hz 50 Hz 59.94 Hz

Active 576 lines

(18.442

ms)

480 lines

(15.238

ms)

576 lines

( 36.864

ms )

480 lines

( 30.507

ms )

Blank 49 lines

(1.568

ms )

45 lines

(1.429

ms)

49 lines

(3.136 ms )

45 lines

(2.860 ms )

Period 625 lines

(20.000

ms)

525 lines

(16.667

ms)

625 lines

(40ms)

525 lines

( 33.367

ms )

Pulse delay

5 lines

(0.160

ms)

9 lines

(0.287

ms)

2 lines

( 0.128 ms )

4 lines

( 0.254 ms )

Pulse width

5 lines

(0.160

ms)

6 lines

(0.190

ms)

3 lines

(0.192 ms )

3 lines

(0.191 ms )

EQ before

0 line 0 line 2 line 3 line

EQ after 0 line 0 line 2 line 3 line Scan ProgressiveProgressiveInterlace Interlace

Sync type

ACS ACS ACS ACS

Video kind

Analog YPbPr (SMPTE RP177)

Analog YPbPr (SMPTE RP177 )

Table 2

3. Power supply

3.1 Setup the AC I/P at 264 VAC and 90VAC , and power board provide two DC Output

1. The DC output voltage is 24V +/-1V DC for Inverter and Scaler board Measured point between pin3(+24V) and pin6(GND) at item 1001 of scaler board

2. The DC output voltage is 16V +/-1 V DC for Scaler and Audio board Measured point between pin1(+16V) and pin6(GND) at item

1001 of scaler board

3.2 Any adjustment is not needed.

4. PC mode Display Adjustment

4.1 Displ ay quality ad jus tment

Use timing mode as describe in 2.2, and use the POPO (pixel

on pixel off) pattern to adjust the clock until no stripe and adjust

the phase until clear picture.

Adjust all pre-load 12 modes, but ignore the wave interference

on non-60 Hz modes.

4.2 WHITE-D adjust ment (B)

4.2.1 At factory mode apply 1360X768 @60Hz mode with 32 gray

pattern. Set smart picture at Normal , and Brightness to 50% and

Contrast to 50%.

Set AUTO-COLOR function for auto ADC offset and gain setup.

4.2.2 Apply full white pattern , adjust the Cool,

Normal & Warm SCALER GAIN RG B

to reach W/D and luminance in factory mode.(See fig.1)

1. Check (X, Y) co-ordinates as below :

Electrical Instructions

420WN6 LCD TV

Go to cover page

Cool/9300°K Normal/6500°K Warm/5700°K

x (center) 0.283 ± 0.005 0.313 ± 0.005 0.328 ± 0.005

y (center) 0.297 ± 0.005 0.329 ± 0.005 0.344 ± 0.005

Table 4.2.2.1: Reading with Minolta CA-110.

2. Check the gray level color poor & noise condition and chromaticity Note:

1. Use Minolta CA-110 for color coordinates and luminance check.

2.Set Light Senor off before W-D adjustment.

3. Lumin ance> 400 cd/m

in the center of the screen at 6500(NORAML)color and PC Brightness control; Contrast control at 100%

4.Set smart picture at normal ,brightness &contrast to 50% after alignment.

5.Set Light senor off after Light senor check.

4.3 Check th e digital interface cable (B )

Check the 32 gray level color poor & noise condition.

FACTORY ADJUST MENU NORMAL

30?C

SCALARGAINRGB

AUTO-COLOR

ADC OFFSET R G B ADC GAIN R G B PC OFFSETRGB

711X SDTV ? SAT.

FACTORY ADJUST MENU COOL

30?C

SCALARGAINRGB

AUTO-COLOR ADC OFFSET R G B

ADC GAIN R G B

PC OFFSETRGB

711X SDTV ? SAT.

Fig.1

Fig.2

5. TV Mode display adjust

5.1 White balance adjustment (B)

5.1.1 General set-up : Equipment Requirements: Color analyzer.

Input requirements:

Input Signal Type : RF signal

1. Set to NTSC system, frequency=187.25MHZ ( for NAFTA model ), with white pattern of 100%

2. Set to PAL B/G system, frequency=64.25MHz ( for WE

model ) with white pattern of 100% Input Signal Strength : 10mV (80 dBuV) terminal voltage.

Input Injection Point : TV Tuner input

Alignment method:

Initial Set-up :

1.Set 711X SDTV Brightness=135; Sat. =64, Contrast =50

in Factory mode(can be fine tuned).

2. Set Smart picture as Personal

3. Apply 100% Full White pattern by TV pattern generator.

Alignment :

Set the VIDEO SCALER GAIN R G B

=SCALERGAINRGB

in Factory Mode(See Fig 2.)

[ Enter factory menu : press VOL+ and VOL- keys together around

six seconds or use factory command by Industrial PC.

1. Check (X, Y) co-ordinates in factory mode as below:

Table 5.1.1 Reading with Minolta CA-110.

2.Set TV Color temperature in Factory model as Cool, and check smart picture at Sports after factory alignment.

3.Check the gray pattern should be distinguished and color bar is correct.

4.SetTVDCRatON.

Cool/9300°K Nor mal/6500°K Warm /5700°K

x (center) 0.283 ± 0.015 0.313 ± 0.015 0.328 ± 0.015

y (center) 0.297 ± 0.015 0.329 ± 0.015 0.344 ± 0.015

6. HDTV Mode display adjust

6.1 White balance adjustment (B)

General set-up: Equipment : Quantum Data Pattern Generator 801GD or 802G.

Apply 1080i, RGBW(Infocus2) gray pattern.

Or FLUKE 54200, apply 576i(PAL B/G), DIGITAL SCAN/DIGI_ADC1 pattern.

Alignment method: Initial Set-up

: 1.Set Smart picture as Personal , Brightness=50, Color=50,

Contrast=50)

2.Set AUTO-COLOR function for HDTV ADC offset & gain setup.

Alignments : 1. Apply 100% Full White pattern by Quantum

DATA 802G pattern generator.

Check (X, Y) co-ordinates as below:

If chromaticity (X, Y) co-ordinates is out of specification, re-alignment Video scalar R/G/B gain from 127/127/127.

2. Set smart picture at sports after HDTV alignment.

3. Check the gray pattern should be distinguished and color bar is correct.

Picture Mode x y Personal

0.283 ± 0.015 0.298 ± 0.015

Display Adjustment

420WN6 LCD TV

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Fig. 1

Fig.7

Clear image

Measurement/viewing selector

Display adjustment

Access factory.Mode how toget intofactorymode menu Step 1:Selectthesource "PC" and then turn off LCD-TV.

Step 2 :[Push"power"button and then push the "VOL-"and "VOL+"

buttons at the same time immediately and hold it] about fiveseconds

then release all b

uttons.

Press "menu"button and bring up factorymode indicationasshownin Fig.1

Use theDOWN and UP to selectthe "

" and then press the "VOL +" button

BDS32*420WN6 EU VO.42.6

0505OLC32*A6K3*A1

PCmode WHITE-D adjustment (B)

1 Apply 1024X768/60Hz mode with5block patternasFig3.Set

main controls brightness controlat50% and contrast to50% on

User mode.Set color setting at natural color on User mode.Move

cursor to"AUTO-color" item on fact

orymode, press "menu" key

to activethis function, then scalerwill adjust RGB and Color

RGB automatically byitself.

Fig.2

Fig.3

2. Apply a 1024x768/60Hz signal withwhite pattern.Set

brightness controlat50% and contrast controlat50%. Adjust the

R.G.B gain toreach special color temperature on centerof

screen.

2.1 Aim theprobeCA-A30atthe centerofscreen as Fig. 4

2.2 Removethe lens p

rotective coverofprobeCA-A30.

2.3 Set Measuring/viewing selector toMeasuring position for reset

analyzer. (Zero calibration) as Fig. 5

2.4Turn onthe colour analyzer (CA-110).

2.5 Press 0-CAL buttonto start reset analyzer. See Fig. 6

Cover (black)

Measurement viewing selector

O-CAL

Fig.4

Fig.6

Fig.5

2.6 Switch lightprobeto Viewing position.

2.7 Movethe Lens barrel forward or backwardtoget clear imageas

showninFig. 7

2.8 Switch lightprobetoMeasuring position. It should beable to

indicate colourvalue ontheCA-11

MAIN CONTROLS

SMART PICTURE AUDIOBRIGHTNESS FEATURES CONTRAST INSTALL AUTO ADJUST

MANUAL ADJUST

NEW MODE

PICTURE

BDS32*420WN6 EU VO.42.60505OLC32*A6K3*A1

Display adjustment

420WN6 LCD TV

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2.9 WHITE-D adjustment (B)

2.9.1 At factory mode apply 1360X768@60Hz mode with 32 gray pattern. Set smart picture at Normal , and Brightness to 50%andContrast to 50%. Set AUTO-COLOR function for auto ADC offset and gain setup.

2.9.2 Apply full white pattern , adjust the Cool, Normal & Warm SCALER GAIN RG B to reach W/D and luminance in factory mode.(See fig.1)

1. Check (X, Y) co-ordinates as below :

Reading with Minolta CA-110.

2. Check the gray level color poor & noise condition and chromaticity

Note:

1. Use Minolta CA-110 for color coordinates and luminance check.

2.Set Light Senor off before W-D adjustment.

3. Luminance> 400 cd/m

in the center of the screen at 6500(NORAML)color

and PC Brightness control; Contrast control at 100%

4.Set smart picture at normal ,brightness &contrast to 50% after alignment.

5.Set Light senor off after Light senor check.

Cool/9300°K Normal/6500°K Warm /5700°K

x (center) 0.283 ± 0.005 0.313 ± 0.005 0.328 ± 0.005

y (center) 0.297 ± 0.005 0.329 ± 0.005 0.344 ± 0.005

420WN6 LCD TV

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Fig. 3Fig. 3

General

Pin assignment

A. 15-pin D-Sub Connector

DDC Data Re-programming

Analog DDC IC, & EEPROM

Additional information

In case the DDC data memory IC or main EEPROM which storage all factory settings were replaced due to a defect, the serial numbers have to be re-programmed" ". It is advised to re-soldered DDC IC and main EEPROM from the old board onto the new board if circuit board have been replaced, in this case the DDC data does not need to be re-programmed.

Additional information about DDC (Display Data Channel) may be obtained from Video Electronics Standards Association (VESA). Extended

Display Identification Data(EDID) information may be also obtained from VESA.

1. An i486 (or above) personal computer or compatible.

2. Microsoft operation system Windows 95/98 .

Y o Install the EDID_PORT_Tool under Win2000/XP . As

Fig. 1 .

A. Cody the "UserPort.sys" to C:\WINNT\system32\drivers(win2000)

C:\WINDOWS\system32\drivers(winXP)

B. Running " io.exe" everytime, Before you start to programming

edid data .

4.A/D Alignment kits (3138 106 10396): inclusion : a. Alignment box x1 (as Fig.

b. Printer cable x1 c. (D-Sub) to (D-Sub) cable x1

System and equipment requirements

ou have t

3. EDID45.EXE program .

Note: The alignment box has already build-in a batteries socket for

using as power source. Pull out the socket by remove four screws at the rear of box. Please do not forget that remove batteries after programming. The energy of batteries can only drive circuits for a short period of time.

batteries (8~12V)

Fig. 2Fig. 2

Fig. 1Fig. 1

To Printer port

To Monitor D-sub cable

ToPC

DDC INSTRUCTIONS

PINNo. SIGNAL b(PC)

1Red

2Green

3Blue

4GND

5 GND

6 Red GND

7Green GND

8 Blue GND

9 +5V (Supply from PC)

10 Sync GND

11 GND

12 Bi-directional data

13 H-sync

14V-sync

15 Data clock

DDC INSTRUCTIONS

420WN6 LCD TV

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Method 1: Start on DDC program

Fig. 5

Fig. 4

1=Power connector

2= D-SUB connector

To printer port (

TP1)

Printer Port

To Monitor

ToPC

----->

Fig. 8

Note 1: If the connection is improper, you will see the following error

message (as shown in Fig. 8) before entering the main menu.

Meanwhile, the (read EDID) function will be disable. At this

time,

please make sure all cables are connected correctly and

Fig. 9

4. Click button. The main menu appears (as shown in Fig. 7).OK This is for initialize alignment box.

Fig. 7

Fig. 6

3. At the submenu, type the letter of your computer's hard disk drive followed by :EDID45 (for example, C:\EDID45, as shown in Fig. 6).

TO VIDEOCARD

420WN6 LCD TV

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DDC INSTRUCTIONS

Re-programming DDC IC

Step 1: After initialize alignment box, connecting all cables and

box as shown in Fig. 10

Fig. 11

Step 2: Read DDC data from monitor

1. Click icon as shown in Fig. 11 from the tool bar to bring up the Channels "Configuration Setup" windows as shown in Fig. 12.

Step 3: Modify DDC data (verify EDID version, week, year)

1. Click (new function) icon from the tool bar, bring up Step 1 of 9 as shown in Fig. 14 . EDID45 DDC application provides the function selection and text change (select & fill out) from Step 1 to Step 9.

Step 4: Modify DDC data (Monitor Serial No.)

Next1. Click , bring up Fig. 15.

2. Click , bring up Fig. 16.Next

3. Click OK button to confirm your selection.

4. Click icon (Read EDID function) to read DDC EDID data from

monitor. The EDID codes will display on screen as shown in Fig. 13.

Fig. 15

Fig. 16

2. Select the DDC2Bi as the communication channel. As shown in Fig. 12.

Fig. 10

1=Power connector 2= D-SUB connector

To printer port (

TP1)

Printer Port

To Monitor

ToPC

----->

Fig. 12

ToPCVideo port (D-sub)

Fig. 13

Fig. 14

Don't close this screen. --->

3138106 10396

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Philips BDL4221V/00, BDL4221V/27, 420WN6QS/93, BDL4221VS/00, 420WN6QS/97 Service Manual

Specifications and Main Features

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User Manual