HITACHI P42T01EA, P42T01UA, P50T01EA, P50T01UA, P50TP01EA Service Manual

...

SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH

SM016

P42T01E P42T01EA P42T01U P42T01UA

P42TP01E P42TP01U P50T01E

CAUTION:

Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual.

ATTENTION:

Avant d’effectuer l’entretien du châassis, le technicien doit lire les «Précautions de sécurité» et les «Notices de sécurité du produit» présentés dans le présent manuel.

VORSICHT:

Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“ und „Hinweise zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.

P50T01EA P50T01U P50T01UA

P50TP01E P50TP01U P50TP01EA

P50TP01UA

Data contained within this Service manual is subject to alteration for improvement.

Les données fournies dans le présent manuel d’entretien peuvent faire l’objet de modifications en vue de perfectionner le produit.

Die in diesem Wartungshandbuch enthaltenen Spezifikationen können sich zwecks Verbesserungen ändern.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

Plasma TV

May 2007

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

Contents

1. Features -----------------------------------------------2

2. Speciﬁ cations -----------------------------------------4

3. Servicing ----------------------------------------------- 5

4. Component names ----------------------------------6

5. Adjustment -------------------------------------------- 9

6. Troubleshooting ------------------------------------ 14

7. Self-diagnosis function --------------------------- 26

8. Block diagram -------------------------------------- 28

9. Connection diagram ------------------------------ 29

10.Wiring diagrams ----------------------------------- 30

11.Disassembly diagrams -------------------------- 34

12.Replacement parts-------------------------------- 36

13.Circuit diagrams ------------------------------------ 37

CAUTION FOR SAFETY

Please read this page before repairing the monitor. This page explains the following items for keeping the safety of the set and preventing accidents during repair.

Symbols used:

Warning

Caution

This symbol means "CAUTION"

This symbol means "POSSIBILITY of

ELECTRIC SHOCK"

This symbol means "possibility of death or heavy damage"

This symbol means "possibility of damage or break age"

Follow instructions.

Special attention parts are indicated on cabinet, chassis and parts by label.

Please follow the notes in [Safety Instructions] in the User’s Manual.

Prevent electric shock.

Take care during working because the monitor has high voltage parts

and power supply parts. Possibility of electric shock if these

parts are touched. Disconnect the mains plug during overhaul, reassembly or parts change. Death or injury by electric shock may occur if live parts are touched.

Use recommended components.

Components and parts with special

characteristics for safety or reliability

are indicated in parts lists and circuit

diagrams by the

Electric shock or fire may occur if non-

recommended components or parts

are used.

mark.

This symbol means "MUST"

This symbol means "DO NOT"

WARNING

Keep the same style of wiring.

The Monitor uses insulating tubes or tapes for safety and some components are kept at a distance from PCB surfaces for safety.

Internal leads are kept from hot- or high voltage parts by clampers or styling.

Return wiring to original condition after repair to prevent electric shock or fire.

Perform safety check after finishing.

Every part (removed screws, components and wiring) should be returned to its original condition. Check around the repair position for damage and measure insulation impedance by using a meg-ohm meter. Confirm that the value of impedance is more than 4M ohm. Electric shock or fire may occur if the value is less than 4M ohm.

The code and combination circuit of the HDCP is not a repairable item.

Never remove the shield case that is assembled to the code and combination circuit of the HDCP.

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PRECAUTIONS

Cleaning the plasma screen panel of the monitor

Before cleaning the monitor, turn off the monitor and disconnect the power plug from the power outlet. To prevent scratching or damaging the plasma screen face, do not knock or rub the surface with sharp or hard objects. Clean the screen with a soft cloth moistened with warm water and dry with a soft cloth. If this is not sufficient, use a cloth with mild detergent. Do not use harsh or abrasive cleaners.

Cleaning the cabinet of the monitor

Use a soft cloth to clean the cabinet and control panel of the monitor. When excessively soiled dilute a neutral detergent in water, wet and wring out the soft cloth thenwipe with a dry soft cloth. Never use acid/alkaline detergents, alcoholic detergents, abrasive cleaners, soap powder, OA cleaners, car wax, glass cleaners, etc. because these cause discoloration, scratches or cracks.

Information for users applicable in European Union countries

This symbol on the product or on its packaging means that your electrical and electronic equipment should be disposed at the end of its life separately from household waste. There are separate collection systems for recycling in EU. For more information, please contact the local authority or the dealer where you purchased the product.

1. Features

Large-screen, high-definition plasma display panel

The 50-inch colour plasma display panel, with a resolution of 1280 (H) x 1080 (V) pixels, and the 42-inch colour plasma display panel, with a resolution of 1024 (H) x 1080 (V) pixels, creates a high-definition, large-screen (aspect ratio: 16:9) and low-profile flat display. Free from electromagnetic interferences from geomagnetic sources and ambient power lines, the panel produces high-quality display images free from colour misconvergence and display distortion.

High Performance Digital Processor

A wide range of input signals can be handed, including composite, component and HDMI. High Definition Digital Processor creates the fine-textured image with dynamic contrast.

Easy-to-use remote control and on-screen display system

The remote control included eases the work of setting display controls. Further, the on-screen display system displays the status of signal reception and display control settings in an easy-to-view fashion.

Connecting to an Audio Visual Device

• Three Scart terminals added. A composite video output terminal is also provided as a monitoring output.

AV1 scart applies composite/ S-video

AV2 and 3 scart applies composite/ RGB

AV5 composite/S-Video=Side Input

AV4 can be connected to the equipment with either component or composite Output.

SD card slot installed

, composite/S terminal*2, a component terminal*3and two HDMI terminals have been

Power Swivel Feature

Allows turning the plasma display left or right within ±30 degree using the remote control.

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Digital Terrestrial Television Broadcasting

Converting to digital signal enables more channels and add various useful features, such as Electric Programme Guide, Digital Teletext and so on. Further, digital signal can create a high quality picture.

This logo indicates that the product is compliant with European Digital Broadcasting. DVB is a registered trademark of the DVB Project.

This logo indicates that the product is set up to view digital terrestrial TV. FREEVIEW and the FREEVIEW logo are trade marks of DVT Services Ltd and are used under license. FREEVIEW Logo © DTV Services Ltd 2002.

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2. Specifications

Panel

Net dimensions

Net weight

Ambient conditions

Display dimensions

Resolution 1280(H) x 1080 (V) pixels 1024(H) x 1080 (V) pixels

Temperature Operating: 5°C to 35°C, Storage: 0°C to 40°C

Relative humidity Operating: 20% to 80%, Storage: 20% to 90% (non-condensing)

Power supply Power consumption/ at standby

Audio output Speaker total 20W

(VIDEO input)

Input terminals

Input signals

Output Signals

(RF input)

Input terminal / Receiving range ANT: 75 Unbalanced / 40~870MHz

Approx. 50 inches (1106(H) x 626(V) mm, diagonal 1270mm)

including Stand: 1240(W)x883(H)x423(D) mm excluding Stand: 1240(W)x821(H)x128(D) mm

including Stand: 47.0kg excluding Stand: 41.0kg

AC 220~240V, 50Hz

451W / <0.8W 353W / <0.8W

AV1 : composite video input terminal (SCART)

S video input terminal (SCART) L/R audio input terminal (SCART)

AV2•3 : composite video input terminal (SCART)

RGB video input terminal (SCART) L/R audio input terminal (SCART)

AV4 : composite video input terminal (RCA)

component video input terminal.(RCA) L/R audio input terminal (RCA)

AV5 : composite video input terminal (RCA)

S video input terminal (Mini DIN) L/R audio input terminal (RCA)

HDMI 1•2 : HDMI input terminal

Audio input terminal (3.5mm Stereo Mini Jack)

Photo Input : Photo Input terminal / SD card slot

Composite video: PAL, SECAM, NTSC3.58, NTSC4.43, PAL60 Component video: 480i, 576i, 480p, 576p, 720p/50, 720p/60, 1080i/50, 1080i/60 HDMI: 480i, 576i, 480p, 576p, 720p/50, 720p/60, 1080i/50, 1080i/60, 1080p/50,

1080p/60

OUTPUT (MONITOR): composite video monitor-output terminal (RCA) OUTPUT (MONITOR): L/R audio monitor- output terminal (RCA) OUTPUT (HEADPHONE): L/R audio monitor- output terminal (3.5mm Stereo Mini Jack) AV1 : composite video output terminal (SCART)

L/R audio output terminal (SCART)

AV2•3 : composite video output terminal (SCART)

L/R audio output terminal (SCART)

Optical Out: PCM

Approx. 42 inches (930(H) x 523(V) , diagonal 1060mm)

including Stand: 1060(W)x780(H)x360(D) mm excluding Stand: 1060(W)x710(H)x110(D) mm

including Stand: 36.2kg excluding Stand: 29.2kg

RF Video System

• The unit takes at least 30 minutes to attain the status of optimal picture quality.

PAL B, G, H / I / D, K SECAM B, G / K1 / L, L' / D,K DVB-T

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3. Service points

Lead free solder

This product uses lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work.

Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead

free solder can splatter at high temperatures (600˚C).

Lead free solder indicator

Printed circuit boards using lead free solder are engraved with an "F."

Properties of lead free solder

The melting point of lead free solder is 40-50˚C higher than leaded solder.

Servicing solder

Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.)

Precautions when using leaded solder

Remove all lead free solder from soldered joints when replacing components. If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the

lead free solder has been completely melted (do not apply the soldering iron without solder).

Servicing soldering iron

A soldering iron with a temperature setting capability (temperature control function) is recommended. The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high stable temperature (large heat capacity), and that allows temperature adjustment according to the part being serviced, to avoid poor servicing performance.

Recommended soldering iron:

Soldering iron with temperature control function (temperature range: 320-450˚C)

Recommended temperature range per part:

Part Soldering iron temperature Mounting (chips) on mounted PCB 320˚C±30˚C Mounting (chips) on empty PCB 380˚C±30˚C

Chassis, metallic shield, etc. 420˚C±30˚C

Boards which use lead free solder

CONTROL PCB (Control PCB, Slot PCB, SD PCB)

TERMINAL PCB (Terminal PCB, LED PCB, Swivel PCB) FILTER PCB MAIN PCB

Readjustment Power supply voltage When a PANEL or a Power Unit is exchanged, power supply voltage needs to be adjusted. Please adjust to

make the values of Va and Vs of as should on the label currently stuck on the panel back upper parts. Adjustment is performed by VR in the power supply unit. Please refer to the procedures of “Va” and “Vs” adjustments on page 10.

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4. Component names

[Main unit]

Front Panel

1 Cabinet

2 Panel 3 Remote Control Receiver 4 Indicating Lamp 5 Main Power Switch (on the bottom surface) 6 Control Panel and Front Input (see below for

details) 7 Desktop Stand 8 Speaker

Rear Panel

42” models

50” models

Control Panel (including front input)

Do not place your fingers into the gap of the opened door. If your fingers are caught in the front door, you may be injured.

Push here to open the door.

A Push the bottom centre of

the front door to unlock.

B Lift it up from the

underside of the door.

1 Terminal Board (External Device Connection) 2 Power Cord Socket 3 Handgrips

CAUTION

42” models

50” models

1 Front Input 2 Menu/Return button 3 Input Select/OK button

4 Volume Down/Żbutton 5 Volume Up/Źbutton 6 Channel Down/źbutton 7 Channel Up/Ÿbutton 8 Sub Power button

[Remote control]

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Sub Power

Function Select (TV/DTT, DVD, SAT)

Press these buttons to select function mode. The selected button blinks once. Normally, select “TV/DTT”.

Programme Select/Input Mode [Page Select]

Press these buttons to select a TV programme directly. You can also use these buttons when changing the Input mode.

Freeze/Multi Mode [Hold]

Press this button to change the picture to freeze mode. Press it again to return to normal picture. In addition, during multi-picture mode, this changes the type of 2-Picture mode. (Also, it holds the page in teletext mode.)

CHI/II

This is exclusively for TV audio A2/NICAM mode. Also, press this button to select Audio Language in DTT mode.

Volume Up/Down

Colour [Colour]

These coloured buttons are for teletext and other functions as detailed later in this book.

TV/Text [TV

This switches between the TV mode and the Teletext mode.

[Cancel]

Press this button to select Main Menu.

Cursor [Item Select]

Function Menu

Press this button to select Function Menu.

DVD Control

You can use these buttons whilst operating the selected brand of DVD player.

Audio Mode

Audio mode can be changed each time pressed in the following sequence. MovieĺMusicĺ SpeechĺFavourite

Recall

Press this button to show the input signal status.

Picture Mode

Picture mode can be changed each time pressed in the following sequence. DynamicĺNaturalĺCinema

Swivel (with Desktop Stand)

This function is to rotate TV. Select the degree of rotation with cursor key.

Input Select

You can use this to change the input mode.

Multi Picture [Text

Press this button to change the picture to multi-picture mode. Press it again to return to normal picture.

Channel Up/Down [Page Select]

Mute

[Reveal]

[Subtitle]

Guide [Index]

It displays EPG screen in DTT mode.

Return

You can use this to return to the previous menu.

Photo Input

This button is to display and control the pictures from digital still camera, USB card reader, or SD (MMC) card.

Zoom

Press this button to change picture size.

Text]

TV+Text]

The function indicated by [ ] are only for Teletext mode.

[Terminal Positions]

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Rear

Power Cord Socket

Aerial Socket

AV1

AV2

AV3

AV4

Monitor Out

Service use only

Power Swivel Terminal

Optical Out (Digital Audio)

HDMI 2

Mini stereo for Audio

Common interface slot

[Example: 50’’ models]

42’’ models

678

2 9

Front

AV5

Headphone terminal

HDMI 1

SD Memory Card slot

18 19

Photo Input terminal

50’’ models

Connecting Procedure

This unit is ready for various kinds of connections. Make a connection in the following steps. Be sure to turn off the Main Power first when connecting external equipment.

1. Connect Power Cord to the rear panel.

2. Connect Aerial Lead.

3. Connect your external equipments to the unit if any.

4. Connect the Power Plug to the Wall Socket.

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5. Adjustment

Ɣ Activating Adjustment Mode

Use the remote controller with the set turned on to activate adjustment mode. Press the Programme Select button “1”, “GREEN” and “YELLOW” colour button at the same time and hold for more than 3 seconds. The set displays adjustment mode.

Ɣ Changing data and Selecting Adjustment code

When the set is in adjustment mode, the cursor used as adjustment keys.

buttons are used for selecting adjustment code.

, buttons are used for changing data values. OK button is used for confirming data. After finishing adjustments press, the RETURN button. Adjustment mode is released and the set returns to normal condition.

Ɣ Memory Initialise operation NOTE: The execution of this function returns the adjustment codes to preset values, therefore, adjust-

ment data will be lost. When performing MEMORY INITIALISE, the following items are not initialised.

• WHITE/BALANCE ADJUSTMENT DATA

• SUB CONTRAST ADJUSTMENT DATA

• CLANP OFFSET ADJUSTMENT DATA

However, the following items are initialised.

• OTHER ADJUSTMENT DATA

• FACTORY RESET ITEM

Procedure

(1) Enter Adjustment Mode. (2) Select MEMORY INIT. (3) Activate MEMORY INIT by pressing cursor “Right” button for more than 3 seconds. (4) As for the whole Memory Initialise, the cyan screen becomes a green screen. It becomes a red screen in the case of abnormality.

, , , and OK buttons of the remote control may be

Ɣ Checking accumulated time of panel.

Mentioned in the menu of the last item.

Factory Reset

After all of adjustments of the main chassis are finished, perform a FACTORY RESET.

Procedure

(1) Enter Adjustment Mode. (2) Select FACT RESET. (3) Activate FACT RESET by pressing cursor Right button for more than 3 seconds. The unit is set to factory settings.

Ɣ When flicker is present set contrast mode of picture menu to Normal and set Black enhancement

to off.

Caution: After upgrading software of the main microcomputer, display a teletext screen

and confirm whether a screen position is right.

If an indication point is unusual, adjust using the following method:

Procedure

(1) Enter Adjustment Mode. (2) Select DEVICE. (3) When indication is replaced, input a device number into DEVICE and press OK or [

Next, input an item number into ITEM and press OK or [ Lastly, change data by pressing [ ] or [ ] into DATA and press OK. Continue input for the next DEVICE, then push [ź] after the DATA input.

Perform the above for the following items: (If you make a mistake entering the input number, push RETURN to go to the previous step.)

DEVICE ITEM DATA

9 107 f8

16 4 b

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50PDP Vs and Va Adjustment

Item Power Unit Vs, Va Adjustment

Preparation Procedure

(1) Turn on the set and perform

pre-heat run for more than 1 min on burn-in screen.

(1) Turn Vs ADJ to adjust Vs voltage

to within ±0.1V of the value specified in the label on the panel.

Adjust within ±1V at Vs1

Adjust within ±0.1V at Vs2

(2) Turn Va ADJ to adjust Vs voltage

to within ±0.1V of the value specified in the label on the panel.

Adjust within ±1V at Va1

Adjust within ±0.1V at Va2

(2) Receive full back pattern signal.

(or Video silence signal; it will automatically turn off after a few seconds by the power save function)

(3) Connect voltmeter leads to the Vs (or Va) and

GND test points of the power unit.

Label example

<LOT>N6 Vs=80.0V Va=60.0V Vw=140.0V Vx=60.0V

Vs1: Vs coarse adjustment VR

(3) Reconﬁ rm that Vs voltage remains within

±0.45V of the speciﬁ ed value. Readjust if outside of the margin.

(4) Reconﬁ rm that Va voltage remains within

±0.55V of the speciﬁ ed value. Readjust if outside of the margin.

Vs2: Vs fine adjustment VR

CN99: Vs,Va test points

GND

3 2

Va2: Va fine adjustment VR

Caution: 42PDP does not require adjustment. ( 42PDP is self-adjustmenting.)

Va1: Va coarse adjustment VR

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RGB Amplitude Adjustment (AV Component Input)

Item

Composite video Adjustment

Preparation Procedure

(1)

Allow the set to heat-run for more than 20 minutes before the final adjustment.

(2)

Input composite video adjustment signal into AV1 terminal.

Adjustment signal for CVBS format

White

Black

0.7V

Item

Component 480p/480i Adjustment

Preparation Procedure

(1)

Allow the set to heat-run for more than 20 minutes before the final adjustment.

(2)

Input component 480p adjustment signal into AV4 terminal.

Adjustment signal for 480p/480i format

White

Black

(1)

Receive composite video adjustment signal at AV1 terminal input. Characters must not be present in both patterns of Black and White.

(2)

Go into Service Adjustment Menu and select “RGB”.

(3)

Press [►] for over 2 seconds then RGB Amplitude Adjustment starts automatically. OSD disappears while the adjustment is operating. OSD appears again when the adjustment is completed.

(1)

Receive 480p adjustment signal at AV4 terminal input. Characters must not be present in both patterns of Black and White.

(2)

Go into Service Adjustment Menu and select “RGB”.

(3)

Press [►] for over 2 seconds then RGB Amplitude Adjustment starts automatically. OSD disappears while the adjustment is operating. OSD appears again when the adjustment is completed.

0.7V

(4)

Change signal formal from 480p to 480i.

(5)

Press [►] for over 2 seconds again, then RGB Amplitude Adjustment starts automatically. OSD disappears while the adjustment is operating. OSD appears again when the adjustment is completed.

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Video Colour Temperature Adjustment

Item

Video Colour Temperature Adjustment (Cool)

Preparation Procedure

(1)

Set the signal generator output to white raster. (Window ratio: 100%)

(2)

Component signal (576i or 480i) Video level: 0.700Vp-p Sync level: 0.300Vp-p Setup level: 0V

(3)

Input white raster signal into AV4 Component input terminal.

(4)

Set Picture Menu to Natural mode.

(5)

Check that the mode is set as Factory Adjustment mode.

(6)

Set aspect to Full mode.

(1)

Perform the following adjustment with the remote control:

(2)

Set the CRT colour analyzer (CA-100) at the centre of the panel.

(3)

Set colour temperature to “Cool”.

(4)

Ensure that the adjustment R/G/B DRIVE (COOL) is all set as 255. If the values are not 255, set them to 255.

(5)

Receive white raster signal. Step down either R DRV_COOL, G DRV_COOL or B DRV_COOL of the two (or, one) values and adjust to the following value.

(Note) At least one of the data items should be 255.

Specification

Video colour temperature (Cool)

x=0.266±0.005 y=0.270±0.005

14000K + 0MPCD

[Remarks] (1) Colour temperature should be adjusted under the condition in which the screen is the brightest, thus the initial value of adjustment is set at maximum. (2) This adjustment only decreases brightness. (3) Beware there is RESET in each Picture mode.

Item

Video Colour Temperature Adjustment (Normal)

Preparation Procedure

(1)

Set the signal generator output to white raster. (Window ratio: 100%)

(2)

Component signal (576i or 480i) Video level: 0.700Vp-p

(1)

Perform the following adjustment with the remote control:

(2)

Set the CRT colour analyzer (CA-100) at the centre

of the panel. Sync level: 0.300Vp-p Setup level: 0V

(3)

Input white raster signal into AV4 Component input terminal.

(3)

Set colour temperature to “Normal”.

Ensure that the adjustment R/G/B DRIVE (NORMAL)

(4)

is all set as 255.

If the values are not 255, set them to 255.

(4)

Set Picture Menu to Natural mode.

Receive white raster signal. Step down either

(5)

Check that the mode is set as Factory Adjustment mode.

R DRV_NORMAL, G DRV_NORMAL or B

DRV_NORMAL of the two (or, one) values and

adjust to the following value.

(6)

Set aspect to Full mode.

(Note) At least one of the data items should be 255.

Specification

Video colour temperature (Normal)

x=0.285±0.005 y=0.293±0.005

9300K + 0MPCD

[Remarks] (1) Colour temperature should be adjusted under the condition in which the screen is the brightest, thus the initial value of adjustment is set at maximum. (2) This adjustment only degreases brightness. (3) Beware there is RESET in each Picture mode.

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Item

Video Colour Temperature Adjustment (Warm)

Preparation Procedure

(1)

Set the signal generator output to white raster. (Window ratio: 100%)

(2)

Component signal (576i or 480i) Video level: 0.700Vp-p Sync level: 0.300Vp-p Setup level: 0V

(3)

Input white raster signal into AV4 Component input terminal.

(4)

Set Picture Menu to Natural mode.

(5)

Check that the mode is set as Factory Adjustment mode.

(6)

Set aspect to Full mode.

(1)

Perform the following adjustment with the remote

control:

(2)

Set the CRT colour analyzer (CA-100) at the centre

of the panel.

(3)

Set colour temperature to “Warm”.

(4)

Ensure that the adjustment R/G/B DRIVE (WARM)

is all set as 255.

If the values are not 255, set them to 255.

(5)

Receive white raster signal. Step down either

R DRV_WARM, G DRV_WARM or B DRV_WARM

of the two (or, one) values and adjust to the following

value.

(Note) At least one of the data items should be 255.

Specification

Video coloor temperature (Warm)

x=0.314±0.005 y=0.323±0.005

6500K + 0MPCD

[Remarks] (1) Colour temperature should be adjusted under the condition in which the screen is the brightest, thus the initial value of adjustment is set at maximum. (2) This adjustment only degreases brightness. (3) Beware there is RESET in each Picture mode.

Item

Video Colour Temperature Adjustment (B&W)

Preparation Procedure

(1)

Set signal generator output as All White. (Window ratio: 100%)

(2)

Component signal (480i) Video level: 0.700Vp-p

(1)

Perform the following adjustment with remote

control:

(2)

Set the CRT Colour Analyzer (CA-100) at the centre

of the panel. Sync level: 0.300Vp-p

(3)

Setup level: 0V

(3)

Input white raster signal into AV4 Component input terminal.

Set colour temperature to “Black&White”.

Ensure that the adjustment R/G/B DRIVE (B/W) is all

(4)

set as 255.

If the values are not 255, set them to 255.

(4)

Set Picture Menu to Natural mode.

Receive white raster signal. Step down either

(5)

Check that the mode is set as Factory Adjustment

(5)

mode.

Set aspect to Full mode.

(6)

R DRV_B/W, G DRV_B/W or B DRV_B/W of the

two (or, one) values and adjust to the following value.

(Note) At least one of the data items should be 255.

Specification

Video colour temperature (B/W)

x=0.335±0.005 y=0.343±0.005

5400K + 0MPCD

[Remarks] (1) Colour temperature should be adjusted under the condition in which the screen is the brightest, thus the initial adjustment value is set at maximum. (2) This adjustment only degreases brightness. (3) Beware there is RESET in each Picture mode.

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6. Troubleshooting

Burn-in mode

This mode displays test patterns of some single colour rasters in turn. These signals are produced by the built-in generator of the panel. So it can be presumed that the panel has a problem when the Burn-in mode screen

is abnormal. Using the remote control with the set turned on can activate the mode. Press the “MENU”, “recall”, “9”, “OK” in turn for less than 2 seconds. The set turns on with single colour raster and the OSD off [BURN IN: ON]. To escape from this mode, press the “MENU”, “recall”, “9”, “OK” in turn for less than 2 seconds.

[no picture, no sound]

C onfirm the LED state and examine according to the following Flowcharts:

LED does not light.

Is AC Fuse

F9A2 T6.3AH 250V of Filter

PCB normal?

Yes

Is the voltage of pin1(+5.0V)

of PPM1 connector of MAIN

PCB normal?

Yes

Are the voltages of

pin6(+5.0V)/7(+3.3V) of PPM1

connector of MAIN

PCB normal?

Yes

Are the voltages of pin1/2/3(+5.6V) of PPM2 connector of MAIN PCB

normal?

Yes

Change AC Fuse of Filter PCB

Change MAIN PCB or EPM1 (cable).

If no improvement, go to

Power Supply Unit Troubleshooting

Change MAIN PCB or EPM1 (cable)

Change MAIN PCB or EPM2 (cable).

If no improvement, go to

Power Supply Unit Troubleshooting

B C

Go to Picture Troubleshooting

Go to Sound Troubleshooting

LED lights blue.

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

Are the voltages of PPM1 and PPM2

connector of MAIN PCB normal?

Ye s

Does PDP Burn-In mode

operate normally?

[PPM1] Pin1/4/5/6 (+5.0V)

[PPM2] Pin1/2/3 (+5.6V)

Ye s

B C

Pin7/8 (+3.3V)

Pin7 (+10V) Pin9 (+16V)

Pin13/14/15 (+12V)

PDP module

Change MAIN PCB or EPM1/2 (cable).

If no improvement, go toto

Power Supply Unit Troubleshooting

Go to PictureTroubleshooting

LED blue blinks blue.

Go to Sound Troubleshooting

It is in video input power save mode. This is not a problem.

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[50PDP Power unit]

Is input voltage

applied to Power supply unit ?

(CN61 (1),(3))

㪰㪼㫊

㩷㩷

Caution: To take off a PPU1 connector,

[42PDP Power unit]

Are the voltages

applied to CN63 (1)(3),

and CNPPS (1)(7)(9)(13) of

Power supply unit ?

㪰㪼㫊

Go to Picture troubleshooting

first take off the filter board and pull up PPU1 connector.

㪥㫆

Change AC Fuse F9A2 T6.3AH

㪥㫆

[CN63] (1) +5.3V / (3) +3.3V [CNPPS] (1) +5.6V / (7) +10.6V

(9) +16.5V / (13) +11.2V

Change Power supply unit

*Re-adjustment is reqired. Refer to 'Power Unit Vs ,Va Adjustment' page.

applied to Power supply unit ?

Is input voltage

(CN61 (1),(3))

Yes

Are voltages

applied to CN631),

and CNPPS (1)(7)(9)(13) of

Power supply unit ?

Yes

Go to Picture troubleshooting

Caution: To take off a PPU1 connector.

First take off the filter board and pull up PPU1 connector.

AC Fuse F9A2 T6.3AH 250V

[CN63] 䇭(1) +5.3V [CNPPS] (1) +5.6V / (7) +10.6V

(9) +16.5V / (13) +10.6V

Change Power supply

*Re-adjustment is not required. Vs ,Va Adjustment is automatic

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

Picture troubleshooting]

No picture, no colour or dark

Analog format signals

Are all Analog format

signals abnormal?

Yes

Are all inputs not reflected?

Change MAIN PCB

Which input is abnormal?

Yes

HDMI

Digital format signals

Which Digital format

signal is abnormal?

DTT

Change MAIN PCB.

Go to RF (analog tuner)

troubleshootin

Go to Composite

troubleshootin

Go to HDMI

troubleshooting

Which input is

abnormal?

Go to S-video

troubleshootin

Go to DTT

troubleshooting

Go to RGB

troubleshootin

Go to Component

troubleshootin

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[Picture: RF (analog) troubleshooting]

RF (analog tuner)

Are voltages of pin3(+5V)/15(30.7) of

UT01(tuner) of Terminal PCB normal?

Yes

Are waveforms at

pin10 (SCL) /11(SDA) of UT01 (tuner) of

Terminal PCB normal?

Yes

Are waveforms at

pin17 (VIDEO_OUT) of UT01(tuner) of

Terminal PCB normal?

Yes

Are waveforms at

Pin6(CV output) of IM06 of MAIN PCB

normal?

Yes

Change UT01 of Terminal PCB

Change Terminal PCB

If no improvement, change MAIN PCB

Change UT01 of Terminal PCB

Change MAIN PCB

If no improvement,

change Terminal PCB

Change MAIN PCB

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[Picture: Composite & S-video troubleshooting]

Composite and S-video

Does a phenomenon appear

if you change a RCA or Mini

DIN cable?

Yes

Are waveforms at

Pin6(CV output) of IM06 of MAIN PCB

normal?

Yes

Change MAIN PCB

[Picture: RGB & Component troubleshooting]

RGB

Change RCA or Mini DIN cable

Change MAIN PCB

If no improvement,

change Terminal PCB

Component

Does a phenomenon appear

if you change a SCART

cable?

Yes

Are waveforms at

Pin5(R output), 6(G output),

3(B output) of IM04 of MAIN

PCB normal?

Yes

Change MAIN PCB

Change SCART cable

Change MAIN PCB

If no improvement,

change Terminal PCB

Does a phenomenon appear

if you change a RCA cable?

Yes

Are waveforms at

Q002 (Pb output)/Q003 (Pr

output)/Q005 (Y output) of MAIN

PCB normal?

Yes

Change MAIN PCB

Change RCA cable

Change MAIN PCB

If no improvement,

change Terminal PCB

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

)

[Picture: DTT troubleshooting]

DTT

[IWP1] Pin4 (+3.3V)/5(+5.6V) [IWP2] Pin2/3 (+5.6V)/7/8(+3.3V) [IW02] Pin2 (+5.6V)/4(+3.3V) [IW03] Pin1/3 (+2.5V)/5(+1.2V) [IW04] Pin1/5 (+3.3V)/4(+2.5V)

Check if DW01 of SLOT PCB lights?

Are the voltages of IWP1, IWP2, IW02,

IW03, IW04 of SLOT PCB

normal?

Yes

Are the signals of

pin14(SDA)/15(SCL)/17(IF02)/18(IF01) of

UT02 of Terminal PCB

normal?

Yes

Are the signals of

pin37(MCLKo)/35(Mdo0)/27(MoVAL)/26(M

oSYNC)/46(MPEG_PD7) of PW01 of

SLOT PCB normal?

Yes

Are the signals of

pin44(MCLKo)/45(Mdo_0)/46(MoVAL)/48

(MoSYNC)/61(MPEG_PDAT_7) of IW01 of

SLOT PCB normal?

Yes

Change MAIN PCB or SLOT PCB

Change SLOT PCB

Change UT02 of Terminal PCB

Change MAIN PCB

If no improvement,

change SLOT PCB or EMP0 (FFC

Change SLOT PCB

cable

Yes

Change MAIN PCB

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[Picture: HDMI troubleshooting]

HDMI

HDMI1

pin13/14/16/17/20/21/23/24 of I405 of

Are waveforms at

MAIN PCB normal?

Yes

Change MAIN PCB

Change SD PCB or EMH (FFC cable)

Does a phenomenon appear

if you change a HDMI

cable?

Are both inputs abnormal?

Which input is abnormal?

If no improvement, chan

e MAIN PCB

Yes

Change HDMI cable

Yes

Change MAIN PCB

HDMI2

Change MAIN PCB

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[Sub Picture troubleshooting]

[Teletext troubleshooting]

No picture, no colour or dark

Change MAIN PCB

If no improvement,

change Terminal PCB

No Teletext (analog)

Are the signals of

QM14/15(CV input) of MAIN

PCB normal?

Yes

Change MAIN PCB

If no improvement,

change Terminal PCB

Change MAIN PCB

P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E

[Sound troubleshooting]

Sound is abnormal

RF (analog)/ AV1/2/3/4/5

Are all analog inputs

with no sound?

Are all inputs no sound?

Which input is abnormal?

HDMI

Same as HDMI (Picture)

troubleshooting

Yes

DTT

Same as DTT (Picture)

troubleshooting

Yes

Change MAIN PCB

If no improvement,

change Terminal PCB

AV1/2/3/4/5

Change Terminal PCB

If no improvement,

change MAIN PCB

Which input is abnormal?

RF (analog tuner)

+ 53 hidden pages