Pioneer PDP42_TrainingGuide Datasheet

42 Inch Plasma Display

Training &

Trouble Shooting Guide

G-5

PDP-42A3HD

PDP-4214HD

Technical Training Department 1925 E. Dominguez Street Long Beach, CA 90810

DTT and Analog Block……..….…..…12~13 Display Block Description & Factory Mode…………………….…14~15 Signal Flow Block Diagrams………16~28 Analog Tuner Input Main Flow……..…16 Analog Tuner Input Sub Block…….….17 Composite Input Main…………………18 Composite Input Sub…………………..19 S Input Main………………………….…20 S Input Sub……………………………..21 ATSC (HD Signal) Main……………….22 ATSC (HD Signal) Sub………………..23 Component Input Main………………..24 Component Input Sub…………………25 HDMI Input Main……………………….26 HDMI Input Sub………………………..27 Caption Input…………………………..28 Input and Tuner Board Locations……29

.

White Balance Adjustment.…….…...30 Power Down Tip………….…………..31 Troubleshooting (Tuner Module)...32~73 No Power………………………………32~33

No HDMI………………..………..…....34~35

No Component Signal………….…....36~37

No TV Signal………...………….…….38~39 No Video or No S Video Signal….….40~43 No Audio…………………………….…44~50 No Caption………………………….…52~53 No Remote Control Operation………54~55 No Key Control………………………..56~57 DTT Board Troubleshooting…………58~73 Disassembly………………………...…74~77 Troubleshooting (PDP Panel)….….78~99 Required Tools…………………….….78 Parts List (Boards & Versions)………79 Basic Troubleshooting Flow Chart.….81 Model & Serial Number Location….…82 Panel Crack Identification…………….82 Connectors and Cables……………...83~86 Vertical or Horizontal Lines………..…87 No Picture………………………….…..88~90 Abnormalities in the Picture……….…91 Power Off………………………………92~95 Detaching Connectors & Boards……96~99 Adjustments……………………….…100~101

Plasma Display

DTV TV VCR DVD HDMI

STANDBY

4

Front view

STANDBY

POWE R

DTV TV VCR DVD HDMI

WE

PO

R

1

1 POWER button 2STANDB Y indicator 3 Current input source indicators 4 Remote control sensor 5INPUT button

STANDBY

/ON

342

S

T

A

ND

B

Y

/O

N

5910

6

78

6OK button 7MENU button 8 VOLUME –/+ buttons 9 CHANNEL –/+ button s

10 ST ANDB Y/ON button

Rear view

5

INPUT

VIDEO 3

L

R

AUDIO

S-VIDEO 3

1

234 8 9

DTVANTENNA IN

ANTENNA / CABLE IN

VIDEO

MONITOR OUT

5

L

R

OPTICAL

AUDIO

DIGITAL OUT

6 7

VIDEO 2 L-AUDIO-R

VIDEO 1

L-AUDIO-R S-VIDEO 1

S-VIDEO 2

L-AUDIO-R Y

The terminals have faced downward.

1 VIDEO 3 terminals (AUDIO/VIDEO/S-VIDEO) 2 DTV-ANTENNA IN terminal 3 ANTENNA/CABLE IN terminal 4 MONITOR OUT terminals (AUDIO/VIDEO) 5 DIGITAL OUT terminal (OPTICAL) 6 VIDEO 1/VIDEO 2 terminals (AUDIO/VIDEO/

S-VIDEO)

10

CB/PB

CR/PR

COMPONENT 2

COMPONENT 1

CB/PB

CR/PR

INPUT

7 COMPONENT 1/COMPONENT 2 terminals

(COMPONENT VIDEO/AUDIO)

8 HDMI terminal (AUDIO/HDMI) 9 RS-232C terminal (service only) 10 AC IN terminal

L

R

AUDIOHDMI

HDMI

SERVICE ONLY AC IN

Remote control unit

6

10 11

12

13

1 2

AV SELECTION

3 4

5

6 7

FAVORITE

8

9

CH

RETURN

HD WIDEINPUT

SCREEN SIZESOUND EFFECT

11 3322

44 6655

77 9988

00

C.C.

SLEEP

CH

OK

EXIT BACK

VOLCH

MUTING

SPLIT SPLIT P IN P SWAP

INPUT SHIFT

SPLIT SPLIT

CH+ CH–

DTV

SIGNAL MTS LIST

TV

CH

ENTER

DISPLAY

MENU

CH

DELETE

14

15

16 17

18

19

20 21

22

1

HD WIDE : Adjusts the picture to fit the 16:9

wide aspect ratio. Available in DTV mode.

2

INP UT : Displays all available input sources.

Press the

or \ button to select the required

\

input source.

3 AV SELECTION

: Selects the picture mode

(Standard, Dynamic, Movie, Game or User).

4

SOUND EFFECT : Selects the sound effect

(Flat, Speech, Movie, Music or User).

5

0-9 : Select the channel.

6



(dot): Selects the sub-channel of DTV.

7

C.C.: Display captions while in the closed-

caption source.

8 FAVORITE CH 9

/|/|/\: Controls the cursor in the on-

\

: Selects the favorite channel.

screen menu.

10

CH RETURN : Returns the selected channels.

11

EXIT : Exits from any display.

12 CH +/

13

–: Changes the channel.

MUTING: Mutes the sound. To turn the sound back on, press the MUTING, VOL+ or VOL – buttons.

14 TV

: Switches between operation and

standby mode.

15 S

CREEN SIZE: Changes the aspect ratio of

the screen (Zoom/Cinema/Full/4:3/Wide).

16 CH ENTE 17

SLEEP: Sets the sleep timer.

18

DISPL AY: Shows the display.

19 OK 20

: Executes a command.

MENU : Displays the on-screen menu .

21 BACK 22 VOL

R: Enters channels.

: Returns to the previous menu screen.

+/–:Sets the volume.

MUTING

VO LCH

7

SPLIT SPLIT P IN PSWAP

INPUT SHIFT

SPLIT SPLIT

CH+ C H–

MTS LIST

FAVORITE

CH DELETE

SIGNAL

DTV

Slid e

23

24 25

SPLIT SPLIT P IN PSWAP

INPUT SHIFT

SPLIT SPLIT

CH+ CH–

DTV

SIGNAL MTS LIST

CH

DELETE

26 27

23 SPLIT Function Buttons

SPLIT : Selects the SPLIT mode (Off, PIP, Twin1

or Twin2). SPLIT INPUT : Selects an input source for the

sub picture.

P IN P/SHIFT : Selectsa position for the sub-

picture.

SWAP : Interchanges the main picture and sub-picture.

SPLIT CH +, SPLIT CH – : Changes the channel of the sub-picture.

24 DTV SIGNAL : Displays the signal strength

and quality.

25 MTS : Selects the sound mode . 26 CH DELETE: Deletes a channel in Edit Chan-

nel List.

27 LIST : Displays the channel list. Press the

button to select the required channel.

|

or

•When using the remote control unit, point it at the Plasma Display.

8

(Power Supply)

(Tuner Block Analog & HDTV)

(Main CPU)

(RGB Block)

(Front Panel LED's)

+3.3V

ATS

/PDIF

9

ATSC Block

Operating System

Customer Settings

CPU & MPEG Decoder

(480I Out)

ATSC = Advanced Television Systems Committee (Digital Television Standards)

NTSC = National Television System Committee (Analog Television Standards)

ATSC

Jack Ant

NTSC

CVBS NTSC

SIF_A

EEPROM 16KB

Digital Tuner

Analog Tuner

Flash 4MByte

Channel Decoder

DDR SDRM 32MByte

CPU

MDIN

150

(TL955B2-SH)

150

+2.5V +1.2V

+5.0V

+2.5V

+1.2V

3

. DC-DC Converter

Linear Reg.

UART0 (Commu nication)

UART1 (RS232C)

UART2 (RS232C) For Deb ug

ATSC YPbPr Out (720P/108 0i)

ATSC CVBS Out

IIS (ATSC)

Audio

DAC

L/R ATSC

+3.3V

+A6VCC

+2.5V

Communication To Disp lay Board

ATS

C S/PDIF

Digital-

SW

S/PDIF Out

1. Digital PCB Block

10

F

E

A : Component Video input Block(BA7657) B : ADC and HDMI receiver Block(MST3388M) C : Real Timer Block(M41T81) D : RS232 communication part E : Micom Block(SDA6001+K4S641632H-TC60+AM29LV160DT) F : Deinterlace Block(MDIN150+K4S643232H-TC60) G : Sub-Video Decoder Block(VPC3230) H : Scaler Block(ASI510) I : LVDS transmitter Block(DS90C387)

A

C

G

B

H

I

D

Block Description of DTT

11

1. DC-DC Block is composed of Regulators(BA05(5V), LP3965ES(1.2V), LP2995MX(VREF,VTT)) and SMPS powers(2V5VCC,3V3VCC,A6VCC).

2. UART Communication is composed of UART1(Communication), UART2(RS232), UART3(RS232 for debug)

3. The EEPROM block stores the current states, channels, and other user setting values.

4. The Flash Rom block stores operation source.

5. ATSC input block is composed of Digital tuner(DTT7608) and channel Decorder(LGDT3303).

6. NTSC input block is composed of Analog Tuner and connects in Video decorder(uPD64012).

7. DDR SDRAM block is composed of 4 32MByte and stores the current Video and information instantly.

8. The CPU block functions MPEG decoder, converts the video format and controls the related IC's.

9. The Audio DAC converts from IIC Audio to L/R Analog Audio.

10. The SPDIF outputs 5.1Ch Dolby Digital audio signal.

2. DTT & Analog PCB Block

12

I

H

A : Channel Demodulator Block(LGDT3303) B : ATSC Tuner Block(DTT7608) C : Analog Tuner Block(FQ1236) D : DDR SDRAM Block(HY5DU281622ET-H x 4) E : MPEG Decoder Block(TL955B2-SH) F : Audio Decoder Block(MSP4440) G : Video Switch Block(CX2069Q) H : Flash Rom Block(E28F320J3A) I : Power input Block J : Main Video decoder Block(uPD64012+HY57V161610DTC-7)

D

A

E

B

J

C

F

G

3. Digital PCB Block

13

A : Indication LED Block B : Audio AMP Block(TA2024B) C : AV input Block D : Control key Block

A

B

C

D

Block Description of Display

14

Normally no adjustments are required to this product, even after a repair or PCB has been changed.

1. The ADC & HDMI receiver used on this board (MST3388-110).

2. The Video Decoder is composed of uPD64012 and VPC3230, converts from analog signal to digital video signal. UPD64012 is used for 480I sub picture only.

3. The CXA2069 switches input signal and selects the signal. Analog Only (Tuner,YC and composite).

4. The MDIN150 is de-interlacer, it functions that interlaced signal converts de-interlaced signal and improves picture quality. (I/P Converter)

5. The ASI510 is scaler IC, scaling video signal it interfaces with related IC and outputs 24 bit RGB format video.

The SDA6001 is composed of micom and closed caption block, it controls related IC, power on/off

6. system, and signal flowing system.

7. IO expander functions that it increases the IO port from receiving IIC communication signal.

8. The real timer(M41T81) is timer with using the clock generator.

Factory Mode

1. •To enter the test mode press keys on remote control in sequence as below. TV/AV 0 9 1 7

•You can make adjustments, but proper settings are very critical for set operations

.

2. Self-check mode and error code is not applicable in this set.

Display BLOCK

15

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

9886

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main Audio R-Main

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R CVBS1

L/R CVBS2

L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decode)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

MICOM_CVBS

RGB/FB

IIC

Bat.

232C

MAX232

Rx/Tx

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

SDA6000M

Tele-text

C/C

4

IIC

LED

Key

I/R

30

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC

L/R DTV1 L/R DTV2

From MSP4440 Output

I/O

Expender

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

P

MAX232

Amp

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

Speaker

ATV Input(Main)

16

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

MDIN

150

4

A-H/V Sync & clk

D-INO[23:0]

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

(~SOG)

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

MSP44X0

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6001

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

ATV Input(Sub)

17

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

4

30

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

CVBS Input(Main)

18

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

(~DE)

30

4

HDMI I2S ATSC I2S

SIF _A L/R Main

(CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

J-

LVDS Tx

L003

DS90C387

(~SOG)

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

CVBS Input(Sub)

19

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

(~DE)

30

4

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

J-

LVDS Tx

L003

DS90C387

(~SOG)

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

HDMI

20

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

S Input(Main)

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

RGB/FB

For CC

LPF

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

D-INO[23:0]

MDIN

150

4

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

HDMI I2S ATSC I2S

SIF _A L/R Main

(CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

MSP44X0

Panel

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

S Input(Sub)

21

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

(~DE)

30

4

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

J-

LVDS Tx

L003

DS90C387 (~SOG)

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

ATSC Input(Main)

22

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

D-INO[23:0]

MDIN

150

4

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC

L/R DTV1

L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

MSP44X0

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

Amp

TA2024B

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

ATSC Input(Sub)

23

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

MDIN

150

4

A-H/V Sync & clk

D-INO[23:0]

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

MSP44X0

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

Component Input(Main)

24

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

4

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

(~DE)

30

(~SOG)

SIF _A

L/R Main (CXA2069)

L/R ATSC

L/R DTV1

L/R DTV2

LVDS Tx

DS90C387

HDMI I2S ATSC I2S

J-

L003

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

Component Input(Sub)

25

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

4

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

(~DE)

30

(~SOG)

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

LVDS Tx

DS90C387

HDMI I2S ATSC I2S

J-

L003

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

HDMI Input(Main)

26

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

MDIN

150

4

A-H/V Sync & clk

D-INO[23:0]

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

HDMI I2S

ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

J-

LVDS Tx

L003

DS90C387

(~SOG)

MSP44X0

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

HDMI Input(Sub)

27

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

L/R CVBS1 L/R CVBS2 L/R CVBS3

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R SC2 L/R CVBS1 L/R CVBS2 L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

MICOM_CVBS

RGB/FB

IIC

Bat.

232C

MAX232

Rx/Tx

D-H/V Sync & clk

A-INE[23:0]

A-H/V Sync & clk

MDIN

150

D-INO[23:0]

150

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

SDA6000M

Tele-text

C/C

4

LED

IIC

Key

I/R

30

DS90C387 (~SOG)

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

From MSP4440 Output

I/O

Expender

(~DE)

J-

LVDS Tx

L003

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

MAX232

Amp

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

Caption Input

28

HDMI

ATSC

YPbPr 1

YPbPr 2

NTSC_CVBS

ATSC_CVBS

CVBS 1

CVBS 2

CVBS 3

Y/C 1

Y/C 2

Y/C 3

CVBS & Audio

LINE_OUT

BA7657

7657

CXA2069

(A_S/W)

MST3388

-110

~ 480P

CVBS1

Y1/C1

MICOM_CVBS

CVBS2/Y2

C2

Audio L-Main

Audio R-Main

RGB

HDMI I2S & S/PDIF

uPD

64012

(Video

Decode,

C/C & 3D)

To MSP

L/R SC2

L/R CVBS1

L/R CVBS2

L/R CVBS3

L/R DVI

LPF

RGB/FB

For CC

5Vst

MDIN

(I/P)

VPC3230

(Decoder)

Real

Timer

(M41T81)

RS232C

150

24

4

5

8 Bit MUX

24

8 Bit MUX

16

D-H/V Sync & clk

A-INE[23:0]

MDIN

150

4

A-H/V Sync & clk

D-INO[23:0]

ASI510

(Scaler)

V-H/V Sync & clk

V-IN [15:0]

30

(~SOG)

HDMI I2S ATSC I2S

SIF _A

L/R Main (CXA2069)

L/R ATSC L/R DTV1 L/R DTV2

(~DE)

LVDS Tx

L003

DS90C387

J-

Audio

(2069,

MSP44X0,

4052)

Audio

4052)

MSP44X0

Panel

L/R SC2 (CXA2069)

L/R Aux. (Headphone)

L/R Main (Power Amp)

From

IIC

MICOM_CVBS

RGB/FB

Bat.

232C

MAX232

Rx/Tx

SDA6000M

Tele-text

C/C

IIC

LED

Key

I/R

MSP4440 Output

I/O

Expender

MAX232

Amp

Speaker

. M7V . A6VCC . A12VCC . 12VCC . 2V5VCC . 3V3VCC

Tuner / Digital / Input & SMPS Power Modules

29

21

11

10

12

10

3

10

4

10

9

10

To "2.5 Rear Section

1

22

To "2.2 Exterior Section(1)

10

12

7

6

10

1 SMPS Assy 150-2040 2 DTT_ANALOG Assy 010-2640 3 DIGITAL Assy 010-2741 4 EMI FILTER PCB Assy 010-2742 5• • • •

6 BRKT FAN-TOP 30172-01-001 7FAN D05X12TL(50x50x10) 10511-07-001 8 Screw M3x14, SEMS,ZNW M1040301415 9 ASSY SHIELD MAIN 01434-0010 10 Screw M3x8, SEMS,ZNW M1040300815

11 BRKT N-FILTER 30173-01-000 12 Screw M3x8, SEM(E),ZNW M1033400615 13 BRKT REAR BOTTOM 30104-03-001 14 Screw T4x16,SS,T/T,BH,BLK M1305401617 15 BRKT MAIN AV-USA 30165-02-001

16 Screw T3x8,2S,T/T,BH,BLK M1305300817 17 Screw M3x8,3S,HH,FNI M1116300805 18 Screw M4x8,BH,BLK M1015400817 19 Wsher (Ø10) M1231111002 20 NUT UNF 3/8INCH832 M1211210002

21 ASSY SHIELD MAIN TOP M1305300817 22 ASSY BRKT MAIN SUPPORTER 01433-0060

8

10

Description

16

17

18

10

14

2

16

18

16

19

20

14

ar

P

t No.

15

13

ADJUSTMENT

30

1. At shipment, the unit is adjusted to its best conditions. Normally, it is not necessary to readjust even if an assembly is replaced. If the

adjustment is shifted or if it becomes necessary to readjust because of part replacement, etc., perform the adjustment as described below.

2. Any value changed in Service/Factory mode will be stored in memory as soon as it is changed. Before readjustment, take note of the

original values for reference in case you need to restore the original settings.

3. Use a stable AC power supply.

ADJUSTMENT OF WHITE BALANCE

Adjustment of White Balance

1. Equipment

• MIK7255 or Pattern Generator

• CA-210 Display Color Analyzer

• Remote Control.

2. Pattern adjustment

• ADC Calibration : Mik pattern #240

• Auto-Calibration Mode ; 480p/60Hz ; 720p/60Hz ; 480i/60Hz

• White Balance adjustment pattern: Mik pattern #446

• Color coordinate adjustment Mode: 720p/60Hz(Component)

Composite NTSC

3. STEP1: ADC-Calibration

1) At 480p, do Auto-Calibration of ADC-cut off & Gain(1 ) on Mosaic pattern(ex Mik pattern #240)

2) At 720p/60Hz, repeat 1)

3) At 480i, repeat 1).

STEP2: Adjustment of White - Balance

4.

1) At Component input 1. 720p/60Hz, adjust white Balance Mid , High ,Low at pattern Full white 70% (Ex; Mik pattern #446)

2) At Composite NTSC, repeat 1)

3) White Balance coordination (enter White Balance in Factory Mode)

How to enter; TV/AV -> 0 -> 9 -> 1-> 7 (press buttons one at a time to enter factory mode)

-> ASI510 W/B -> Done (it shows R,G,B adjustment toolbar)

(1) Mid : x=0.283 , y=0.298 +/- 0.02 (9300k) (2) High : x=0.276 , y=0.283 +/- 0.02 (11000k) (3) Low : x=0.313 , y=0.329 +/- 0.02 (6500k)

Power Down – Quick Troubleshooting Tip

31

Plasma Panel shuts down immediately

After power on.

First unplug the two connectors on the SMPS Assembly (the connectors with all brown wires). Next unplug the TMDS connector from the Display to the panel assembly (silver shielded connector).

Try to power the set on in this condition. If the power stays on you will need to troubleshoot the Panel assembly PCB’s. If the power still shuts down you need to troubleshoot the Display, DTT, SMPS Audio or Thermal sensor assemblies.

1. No Power

32

(Power Supply Board)

Preliminary Checkpoints

Check the condition of the input power &cable connection. (JP730,JP701(DTT&Analog, JP709(Digital),JP230(AMP)) Check the condition of on-board regulators. Check for short circuits between each power terminal and the ground.

No Power

When Powered ON

#1(M-7V)

at JP730

In Digital B/D

#3(Power)

at JP730

In digital Board

#5(POMUTE)

at JP730

In digital Board

#74,75

at U29

in digital B/D

The signal waveform

of X3

in digital B/D

Waveform 1

Waveform 2

Waveform 3

Waveform

4,4 - 1

Waveform 5

NG

Check SMPS

Check SMPS &Micom

Block(U29)

Check SMPS &Power Line

in Digital B/D

Check the state of soldering

in U401,U800,U29

Check the input power

part in U29

The data line waveform

of U28

Change Digital B/D

Waveform

6,6 - 1

NG

Check the U28 and

related Circuit

33

2. No HDMI Signal

34

Preliminary Checkpoints

Check the condition of Conection of the HDMI input Connector Check the condition of Soldering state in HDMI input part. Check for short circuits between each power terminal and the ground.

No HDMI

signal

#37,38

at U401

in digital B/D

#108,109,111,112,

114,115,117,118

DC level At U401

In digital Board

EDID data

at U4

In digi tal Board

No sound

in HDMI mode

Check the signal

at JP4(HDMI Connector)

Waveform 7

Waveform 8

NG

Check the state of soldering

at U401,U800,U29

Check input signal part of

U401

Check HDMI_PWR

&5VSTB

Check the EDID data

&Audio output at U401

Change JP4

Change Digital B/D

35

3. No Component Video Signal

36

Preliminary Checkpoints

Check the condition of connectin of the input component video signal. Check the condition of soldering state in U401 Check the short point in signal l ine. Check for short circuits between each power terminal and the ground.

No Component

signal (SMPTE Color Bars)

#22,25,27

at U1

in digital B/D

The output signal

At U401

In digital Board

Dose the signal

appear at PR14~19

In digital B/D

Dose the signal

appear at

PR29,31,34,35,38,39

In digital B/D

Waveform 9

Waveform 10

Waveform 11

Waveform 12

NG

Check the state of soldering

at JP1 &input signal part

Check U401 and

Y400 and related circuit

Check U16 and

Y2 and related circuit

Check U20 and

X2 and related circuit

Check the LVDS Cable

and JP500

in Digital B/D

Change Digital B/D

NG

Change the LVDS Cable

&LVDS chip

Test Patterm : SMPTE Color Bats

< Waveform 9 #22 >

37

< Waveform 10 >

< Waveform 9 #25 >

< Waveform 9 #27 > < Waveform 12 >

< Waveform 11 >

4. No TV Signal

38

Preliminary Checkpoints

Check the condition of connectin of the input TV signal. Check the condition of soldering state in Tuner & input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No TV

signal (SMPTE Color Bars)

#63

at U706

in DTT & Analog B/D

#119

At U711

In DTT&Analog Board

Dose the signal

appear at PR22,24

25,26 In DTT&Analog

B/D

Dose the signal

appear at

PR29,31,34,35,38,39

In digital B/D

Waveform 13

Waveform 14

Waveform 11

Waveform 12

NG

Check A_CVBS1 input

part

Check U706 &

input part of U711

Check U16 and

Y2 and related circuit

Check U20 and

X2 and related circuit

Check the LVDS Cable

and JP500

in Digital B/D

Change Digital B/D

NG

Change the LVDS Cable

&LVDS chip

< Waveform 13 >

39

< Waveform 14 >

< Waveform 12 >

< Waveform 11 >

5. No Video Signal (CVBS)

40

Preliminary Checkpoints

Check the condition of connectin of the input CVBS signal. Check the condition of soldering state in CVBS & input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No CVBS

signal (SMPTE Color Bars)

#8(1),15(2),22(3)

at U706

in DTT & Analog B/D

(1):VIDEO01 (2):VIDEO01 (3):VIDEO01

Waveform 15

NG

Check CVBS input

part

#119

At U711

In DTT&Analog Board

Dose the signal

appear at PR22,24

25,26 In DTT&Analog

B/D

Dose the signal

appear at

PR29,31,34,35,38,39

In digital B/D

Check the LVDS Cable

and JP500

in Digital B/D

Waveform 14

Waveform 11

Waveform 12

NG

Check U706 &

input part of U711

Check U16 and

Y2 and related circuit

Check U20 and

X2 and related circuit

Change the LVDS Cable

&LVDS chip

Change Digital B/D

< Waveform 15 >

41

< Waveform 14 >

< Waveform 12 >

< Waveform 11 >

6. No Video Signal (S-VHS)

42

Preliminary Checkpoints

Check the condition of connectin of the input S-VHS signal. Check the condition of soldering state in S-VHS & input part Check the short poi nt in signal line. Check for short circuits between each power terminal and the ground.

No S-VHS

signal (SMPTE Color Bars)

#10,12(1),17,19(2),24,26(3)

at U706

in DTT & Analog B/D

(1):S-VIDEO01 (2):S-VIDEO01 (3):S-VIDEO01

Waveform

16,16-1

NG

Check CVBS input

part

#121,128

At U711

In DTT&Analog Board

Dose the signal

appear at PR22,24

25,26 In DTT&Analog

B/D

Dose the signal

appear at

PR29,31,34,35,38,39

In digital B/D

Check the LVDS Cable

and JP500

in Digital B/D

Waveform

17,17-1

Waveform 11

Waveform 12

NG

Check U706 &

input part of U711

Check U16 and

Y2 and related circuit

Check U20 and

X2 and related circuit

Change the LVDS Cable

&LVDS chip

Change Digital B/D

< Waveform 16 C >

43

< Waveform 17 Y >

< Waveform 16 Y >

< Waveform 17 C >

< Waveform 12 >

7. No Sound DVI Audio (Sine wave input)

44

Preliminary Checkpoints

Check the condition of connectin of the input DVI Audio R/L. Check the condition of soldering state in DVI Audio R/L &input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No Sound in

DVI Audio R/L

#29,31

at U706

in DTT & Analog B/D

#56,57

At U751

In DTT&Analog Board

#11,15

At U200

In Audio Amp Board

#28,31,27,24

At U200

Waveform 18

Waveform 19

Waveform 20

Waveform 21

NG

Check DVI Audio input

part

Check U706 &

input part of U751

Check U751 and

Y800 and related circuit

Check U20 and

X2 and related circuit

Change Speaker

< Waveform 18 >

45

< Waveform 19 >

< Waveform 21 >

< Waveform 20 >

8. No Sound in CVBS (Sine wave input)

46

Preliminary Checkpoints

Check the condition of connectin of the input CVBS Audio R/L. Check the condition of soldering state in CVBS Audio R/L & input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No Sound in

CVBS Audio R/L

#9,11(1),16,18(2),23,25(3)

at U706

in DTT & Analog B/D

Waveform 18

(1):VIDEO01 Audio (2):VIDEO01 Audio (3):VIDEO01 Audio

NG

Check CVBS Audio input

part

#56,57

At U751

In DTT&Analog Board

#11,15

At U200

In Audio Amp Board

#28,31,27,24

At U200

Change Speaker

Waveform 19

Waveform 20

Waveform 21

NG

Check U706 &

input part of U751

Check U751 and

Y800 and related circuit

Check U200 and

X2 and related circuit

< Waveform 18 >

47

< Waveform 19 >

< Waveform 21 >

< Waveform 20 >

9. No Audio in Component Input (Sine wave input)

48

Preliminary Checkpoints

Check the condition of connectin of the input Component Audio R/L. Check the condition of soldering state in Component Audio R/L &input part Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No Sound in

Component Audio R/L

(1):Component1 Audio (2):Component2 Audio

#50,51(1),47,48(2)

at U751

in DTT & Analog B/D

Waveform 19

NG

Check Component Audio

input part

#11,15

At U200

In Audio Amp Board

#28,31,27,24

At U200

Change Speaker

Waveform 20

Waveform 21

NG

Check U751 and

Y800 and related circuit

Check U20 and

X2 and related circuit

< Waveform 19 >

49

< Waveform 20 >

< Waveform 21 >

10. No TV Sound (Sine wave input)

50

Preliminary Checkpoints

Check the condition of connectin of the input TV SIF. Check the condition of soldering state in TV SIF input part. Check the short point in signal line. Check for short circuits between each power terminal and the ground.

No Sound in

TV input

#67

at U751

in DTT & Analog B/D

#11,15

At U200

In Audio Amp Board

#28,31,27,24

At U200

Change Speaker

Waveform 22

Waveform 20

Waveform 21

NG

Check TV SIF input part

Check U751 and

Y800 and related circuit

Check U20 and

X2 and related circuit

< Waveform 22 >

51

< Waveform 20 >

< Waveform 21 >

11. No Caption

52

Preliminary Checkpoints

Check the back Solding state in 96 pin connector(JP12(Digital),JP701(DTT&Analog)) Check the CC_RD,GD,BD,FB,VD,HD signal in I C. Check the I2C between Micom and uPD64012 or EEPROM. Check the Flash Memory or SDRAM.

CC in Remocon is

O.K. but the CC Does

Not display

OK

Check the Micom_CVBS

(Pin 121)

of IC SDA6001(U29)

OK

Check CC_R,G,B,FB,H,V-sync

of IC SDA6001(U29)

OK

Change the uPD64012

Waveform 23

NG

Waveform 24

R,G,B,FB,H-sync

V-sync

NG

Check Micom CVBS

Connection part

Check the crystal(X2)

and related parts on U29

< Waveform 24 R >

53

< Waveform 24 FB >

< Waveform 24 G >

< Waveform 24 B >

< Waveform 24 H-sync >

< Waveform 24 V-sync >

12. Remocon

54

Remocon switch push but the key does not function

Preliminary Checkpoints

Check the Solder state and pin of Connector JP10 Check the Solder state in LED Board. Check the I2C between Micom and EEPROM. Check the Flash Memory or SDRAM.

Remocon is O.K. but

the Function does not

operate.

OK

Check the IR Micom(Pin 76)

of IC SDA6001(U29)

OK

Check the Micom part

(IIC Comunication, other

Control line)

OK

When you power

switch off,

the set off

OK

Exchange the Digital Board

Waveform 25

NG

Check Remocon output

and Power in LED Board

Exchange the IC(U29)

Exchange the IC(UP1)

< Waveform 25 >

55

13. Key

56

Key switch is OK but the key does not function

Preliminary Checkpoints

Check the Solder state and pin of Connector JP10 Check the Solder state in Key Board. Check the I2C between Micom and EEPROM. Check the Flash Memory or SDRAM.

Control key is O.K. but

the Function does not

operate.

OK

Check the key1,key2

(Pin 124,125)

of IC SDA6001(U29)

OK

Check the Micom part

(IIC Comunication, other

Control line)

OK

Check IR processor

(UP1)

OK

Exchange the Digital Board

Waveform 26

NG

Check Control Key Board

and Power in LED Board

Exchange the IC(U29)

Exchange the IC(UP1)

< Waveform 26 >

57

< Waveform 26-1 >

DTT Basic Inspection

58

Not Working When Powered On

Preliminary Checkpoints

Check the condition of the input power &cable connection. (JP709) Check the condition of on-board regulators. Check for short circuits between each power terminal and the ground.

Check the Digital Board or

SMPS

Perform short circuit test on

each power lines.

NG

Not Working

When Powered On

OK

Check the voltage output

of JP709 & JP701.

OK

Check the voltage output

of JP709 & JP701 after

connecting them.

*JP 709

1. 3.3V

2. 3.3V

3. 3.3V

4. GND

5. GND

6. GND

7. 2.5V

8. 2.5V

9. 2.5V

10. GND

11. GND

12. GND

*JP 701

9. A6VCC

10. A6VCC

OK

Check the power line path

from connector

to on-board regulators.

Check the soldering status of

on-board regulators.

Perform short circuit test on

each power lines.

Note) Please refer to the power diagram of PAU-42THD for detail power connectivity information. Note) Each input power of DTT comes via the digital board of SMPS directly. So, please check the digital board prior to SMPS when power input is not working properly.

NG

Check the input voltage

of on-board regulators

OK

Check the output voltage

of on-board regulators

OK

Check the power line path

from on-board regulators

to each components.

Basic Inspection

59

Mulfunction or Not Working of Remote Control Unit

Preliminary Checkpoints

Check the battery condition of the Remote Control Unit. Check against the a set that works normally to see if the RCU (Remote Control Unit) is working. Check whether the connector between Digital Board and DTT&Analog Board is connected. (JP701) Note that DTT board does not receive the key directly from RCU. Instead, MCU of digital board gets the keys and passes them to DTT through the UART0. (Pin 34 &35 of JP701)

Mulfunction or Not

Working of Remote

Control Unit

Check the battery of the RCU.

Check the RCU.

OK

Check the connector

(JP701)

OK

Check the UART0_RX signal

(Pin 33 of JP701)

OK

Check signal line path to the

main CPU of DTT board

(U2)

Waveform 1 (When 'OK' key is pressed)

NG

Replace the battery/RCU

Secure the connector

Check the digital board /

Check the IR & LED board

< Waveform 1 >

Basic Inspection

60

Power Supply is O.K. but the DTT Does Not Wake Up

Preliminary Checkpoints

Check the System Clock (27MHz)and the RESET terminal of CPU. Check the UART communication terminals between CPU and digital board (UART0). Check the I2C between CPU and LGDT3303 or EEPROM. Check the Flash Memory or DDR-SDRAM.

Power Supply is O.K.

but the STB Does Not

Wake up

Waveform 2

Check the System

Clock 27MHz (Pin 15) of IC

MK2475-33G (U261)

OK

Check DDR-SDRAM Clock

(Pin 45 and 46) of DDR-SDRAM

(U5, U6, U7 and U8)

OK

Check system reset of Pin1 on

U281

OK

Check RESET, CS and OE

signals of Flash Memory

OK

Ch:CLK, Ch2:CLK~

Ch:3.3V, Ch2:Reset

Ch1:Reset, Ch2:CS/ Ch3:OE/

Waveform 3

Waveform 4

Waveform 5

NG

Check X-Tal(Y261) and

related parts

Check the Vref and VTT voltage

and clock of

DDR-SDRAM or related parts

Check the soldering state of

U281 or Replace U281

Check Flash Memory (U40) or related parts

Check for other defective

modes

Useful Tips

1. An Unstable 27 MHz clock may be due to defect of X-TAL or clock generator (U261). Replace the X-Tal or U261.

2. DDR-SDRAM have difference clock inputs which are positive and others are negative signal (Double Data Rate).

3. Vref and VTT are have Vcc/2 and check the power source whether defected.

4. When replacing parts, be cearful of static charges from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.

5. If the problems are caused by CPU, change CPU board and download Serial Number.

< Waveform 2 > < Waveform 5 >

61

< Waveform 3 >

< Waveform 4 >

Basic Inspection

62

Does Not Boot after Power-On or System Reset

Preliminary Checkpoints

The system clock 27MHz must be stable during the System Reset or the Power On Reset. However, if X-TAL is defective, the clock may not become stable until RESET is released. To check reset timing, turn the main power off and back on, and check if the following waveform is maintained.

System/Power-On Reset

Does Not Boot after

Check the Reset and

clock timing of CPU

Waveform 2 Waveform 4

27 MHz Clock problemReset timing promlem

Check the reset signal of

Flash and Pin1 of U281

Check the soldering status

of U40(Flash Memory)

and U62

Check the soldering state of

EFPROM

Useful Tips

NG

OK

Check the communication

between DTT and

digital board

OK

Check Flash Memory

OK

Check the 12C Line

(Pin 6, 5 of U31)

OK

Check for other defective

modes

Waveform 5

NG

Waveform 6

Ch1:SLC, Ch2:SDA

Check the soldering status

of X-TAL(Y261) and U261

Check the soldering status

of JP282.

Check the digital board

Check the waveform CS

and OE of Flash Memory

1. The CPU have two 12C for system controller. One is communicate with system 12C(TDA10046) and the other is communicate with serial EFPROM for storing data.

2. When the system will not operate even though the basic inspection results were normal, check Flash Memory which contains channel data and program contents.

3. Additionally check for Local DATA and Local ADDRESS buses between CPU and Flash Memory.

4. When replacing parts, be careful of static changes from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.

5. If the problems are caused by CPU, change CPU board and download Serial Number.

< Waveform 2 > < Waveform 6 >

63

< Waveform 4 >

< Waveform 5 >

CPU / SYSTEM MEMORY INSPECTION

64

CPU /System Memory Inspection

Error Occurs During S/W Installation or Update through BOOTROM Board. System Stops During Initial Booting or Operation.

Preliminary Checkpoints

If the system does not respond even though no problem was found after basic inspection, you need to check the flash memory that contains program codes for the proper system operation, Flash Memory Control signals that look similar to below waveforms will be repeated. The main cause of the problems related to System Memory (i.e.Flash and DDRSDRAM)is the soldering of parts. Therefore, first check the soldering condition and the power supply of IC.

Error Occurs During S/W

Installation or Update

through BOOTROM Board.

Waveform 5

NG OK

Check CPU

and Flash Memory

(Incorrect insertion, poor

soldering, etc.)

OK OK

Re-check the basic inspection

items

Check Flash Access

signal CE(Pin 14), OE(Pin 54)

NG

Waveform 7

Ch:DDR0A0

CH:DDR0D0

Check the Data and

Addresses of DDR-SDRAM

Check for other defective

modes

Useful Tips

1. Check CE, OE and WE of Flash Memory when system does not operate or cannnot update for new software.

2. When the system will not operate even though the basic inspection results were normal, check Flash Memory which contains channel data and program contents.

3. Additionally check for Local ADDRESS buses between CPU and Flash Memory.

4. Check the Memory interface of DDRSDRAM if the Flash Memory is not defected.

5. When replacing parts, be careful of static charges from the tip of the solder iron that can easily damage the parts. Also, check for assembly condition, soldering condition, or for incorrect or reverse insertion of parts.

6. If the problems are caused by CPU, change CPU board and download Serial Number.

< Waveform 5 >

65

< Waveform 7 >

MPEG INSPECTION

66

MPEG Inspection

No problems Found during Basic and CPU/System Memory Inspections, but MPEG Does Not Play.

- Check DDR SDRAM Interface/Transport Stream(TS).

Preliminary Checkpoints

If the system does not respond even though no problems were found during the basic inspection and the CPU/Flash inspection, you will need to check the DDR-SDRAM interface. Check control lines between DDR-SDRAM and CPU also data/address lines. The main cause of the problems related to System Memory (i.e.Flash and DDR-SDRAM)is the soldering of parts. Therefore, in the event of a problem, first check the condition of the soldering and the power supply of IC.

No problems Found on

during Basic/Memory

Inspections but MPEG Play

Does Not Work

Ch1:RAS/, Ch2:CAS/, Ch3:WE/

NG OK

Check the solding

status of DDR-SDRAM

(U5, U6, U7 and U8)

OK OK

Recheck the basic inspevtion

items

Useful Tips

1. Make sure that basic function of the system is normal by checking that the VFD toggles each time you press the Front power key.

2. Check the interface between CPU and DDR-SDRAM U5, U6, U7 and U8. The interface is composed of clock(133MHz), address, data and control signals.

3. If all connections are complete, replace the DDR-SDRAM.

4. If the problems are caused by CPU, change CPU board and download Serial Number.

Check the output of DDR SDRAM control interface

NG

Waveform 8

Check the adress and data lines

of between CPU and DDR-SDRAM

Waveform 7

Check for other defective

modes

< Waveform 7 >

< Waveform 8 >

A/ V INSPECTION

67

A/V Inspection

No Video Output - CVBS/YPbPr

Preliminary Checkpoints

If no video is output while the UI(User Interface)and key controls are normal, first check the video output signal of CPU. If no video signal found,check the TS parallel data between CPU and U531. If no output of TS data,check the U531 and relevant components.

U2(PIN:A9):CVBS

U2(PIN:B9, C9):

S-VHS

JP141(PIN1, 3, 5,):YPbPr

Waveform 9-1 (CVBS)

Waveform 9-2 (YPbPr)

No video Output

OK

Check the Video output

of CPU

OK

Check the TS line between

CPU and U531

NG

Check the path between

CPU and JP705, JP706 (Incorrect

insertion, poor soldering, short

circuits, damage, etc.)

Check the TS signal path from

tuner to U531.

OK

Check for other defective

Useful Tips

1. If no output of TS data but tuner is good, check the U531 and relevant components.

modes

< Waveform 9-1 >

< Waveform 9-2 >

A/V Inspection

68

No Audio Output

Preliminary Checkpoints

If no audio is output through JP800 while the system is normal, first check the CPU AUDIO output and clock. [I2S interface ]. If no problems were found, check the U671 for Audio DAC.

Waveform 10

Ch1:SCLK,

Ch2:LRCLK,

Ch3:ADATA0

No Audio Output

OK

Check the CPU

12S output

OK

NG

Check the path between

CPU and Clock

(Incorrect insertion, poor soldering,

short circuits, damage, etc.)

Waveform 11

Check the Audio clock

Pin 9 of U261

OK

Check the Audio DAC for

Useful Tips

1. The Audio problem largely from the defect of CPU, Audio DAC or incomplete soldering of the parts located along the audio output path.

2. Audio DAC pins represent serial data, LR clock, Bit clock and system clock, respectively.

U761

OK

Check for other

defective modes

NG

Check the X-TAL and U261

(Incorrect insertion, poor soldering,

short circuits, damage, etc)

Check the path between

Audio DAC and CPU

(Incorrect insertion, poor solding,

short circuits, damage, etc)

< Waveform 10 >

< Waveform 11 >

A/V Inspection

69

No digital audio output

Preliminary Checkpoints

If the SPDIF output is not working while the system is normal (Including MPEG play and A/V output), check for any problems with the SPDIF output of CPU.

No IEC958 Digital Output

Waveform 13

Check the IEC958 output

signal J5 of U2

OK

Check for other

defective modes

NG

Check the path between

CPU and IEC958 line

(Incorrect insertion, poor soldering,

short circuits, damage, etc.)

< Waveform 13 >

CHANNEL INSPECTION

70

Channel Inspection

No Channel Locking with No Problems with Power/CPU

Preliminary Checkpoints

If channel locking fails even though there is no problems with the system, check the Interface between Tuner, LGDT3303 and CPU.

Channel locking failure

- LDGT3303 Input Power * +3.3V Pin21, 35, 61, 93 * +1.8V PIN16, 19, 32, 42, 47, 55, 63, 68, 74, 81, 85, 89, 100

Check the LGDT3303

input voltage

NG

After the basic inspection, check the

path between U501 and LGDT3303 (Incorrect insertion, poor soldering,

short circuits, damage, etc)

- LDGT3303 PIN26 * low : reset on * high : reset release

- LGDT3303 Pin 79, 80 * 25MHz clock

- 12C CLOCK [PIN48]

- 12C DATA[PIN49]

Check the LGDT3303 input

Waveform 14

OK

(Reset) = high

OK

Check the LGDT3303

input clock

OK

Check the 12C control

Check other related

part

NG

Check the path between CPU and LGDT3303 (Incorrect insertion, poor soldering, short

circuits, damage, etc.)

Check the path between

LGDT3303 and X-Tal (Incorrect

insertion, poor soldering, short

circuits, damage, etc.)

Check the path between

devices the LGDT3303 and EEPROM

Also, check Incorrect insertion, poor

soldering, short circuits, damage, etc.)

Useful Tips

1. Check the power byU532 are properly provided to the U531.

2. Check the 12C interface between tuner and 10046. If no problem, inspect along the tuner output path to TDA10046. Whether the components of R, L, C's soldering status.

3. If no problem, replace the Tuner.

4. If the problems are founded by CPU, replace the CPU board and also download SN.

< Waveform 14 >

71

CHANNEL INSPECTION 2

72

Channel Inspection

No Channel Locking with No Problems with Power/CPU

Preliminary Checkpoints

If channel Locking fails even though there is no problems with the system, check the TUNER 12C BUS and IF signals. If the Tuner 12C and IF signals are good but cannot search, check TS data goes to CPU

Channel locking failure

* +5VDT of PIN 3, 7

* PIN48 [SCL] of LGDT3303 * PIN49 [SDA] of LGDT3303

* VIN+ * VIN-

* PIN22(TUNER_AGC) of LGDT3303

Waveform 15

Waveform 16

Waveform 17

Check the TUNER power

OK

Check the 12C DATA and

CLOCK of TUNER

OK

Check the TUNER output

(VIN+, VIN-)

OK

Check the TUNER

AGC

OK

NG

After the basic inspection, check the

path between SMPS and TUNER

(Incorrect insertion, poor soldring, short

circuits, damage, etc)

Check the path between CPU and LGDT3303 (Incorrect insertion, poor soldering, short

circuits, damage, etc.)

Check the path between

LGDT3303 and TUNER (Incorrect

insertion, poor soldering, short

circuits, damage, etc.)

Check the path between

LGDT3303 and Tuner

(Incorrect insertion, poor soldering,

short circuits, damage, etc.)

* PIN46(VSB_CLK) of LGDT3303 high : lock low : unlock

* VSB_D [7 : 0] of LGDT3303

Check the output of Pin46

is high, also check clock

and valid of LGDT3303

OK

Check the TS DATA output

and goes to CPU

Check for other defective

modes

NG

Replace the related parts

(demodulator)

Replace the related parts

(demodulator)

< Waveform 15 >

73

< Waveform 16 >

DISASSEMBLY

74

1

Rear Case(42a3HD), Stand and Shield Assys

Remove the 15 screws (T4 x 16).

1

Remove the two screws (M4 x 12).

2

Remove the 17 screws (M4 x 8).

3

1

1 1 1 1 1

3

1 3

3

1

3

1 3

3

1

3 3 3 3 3

3

1

3

SHIELD ASSY and STAND ASSY

Remove the nine screws (M3 x 8).

4

Remove the four screws (M4 x 12).

5

Remove the stand.

6

1

4

4 4

12 21

1

4

4 4

4

5

4

5 5

5

6

STAND ASSY SHILED ASSY

2

75

ANALOG, DIGITAL and EMI FILTER

Remove the six screws (M3 x 8).

7

Remove the eight screws (M4 x 8).

8

Remove the connector (right → center → left).

9

Remove the ANALOG DIGITAL EMI FILTER.

10

Remove the Assy Brkt V-supporter L and R.

Remove the four screws (M3 x 8) to release

11

the ASSY BRKT MAIN. Remove the four screws (M5 x 12).

12

Remove the eight screws (T4 x 16).

13

Remove the five screws (M3 x 8) to release

14

the SMPS.

12

13

7

9

7

9

7

8

8 8 8

9

7

13

14

SMPS

14

12

14

11

ASSY BRKT MAIN

14

13

3

76

SHIELD SIDE

Remove the SHIELD SIDE

Remove the three screws (T4 x 16).

15

Remove the screw (M4 x 10).

16

Remove the three screws (M4 x 8).

17

15

17 16

1513

13

PDP PANEL

4

77

SPEAKERS

LED PCB

Remove the two screws to release the LED PCB.

18

Remove the eight screws (T4 x 14) to

20

release the SPEAKER L/R.

SPEAKER R SPEAKER L

20

18

20

HOW TO DIAGNOSE THE PDP MODULE

78

HOW TO DIAGNOSE THE PDP MODULE (PDP-NP42H5MF01PA/PB)

1. List of tools required for repair

2. Points of failure diagnosis for a Board Assy (PKG)

3. Replacement method of a Board Assy (PKG) and notes on replacement

4. Adjustments after replacement of parts in the module

5. Operation check

1. List of tools required for repair

a) Phillips screwdriver:For detaching/reattaching PKGs b) Antistatic wrist strap:

To be used when electronic components, such as PKGs, are to be handled c) Signal generator (PC, etc.) :For voltage adjustment and display check d)DVM:For voltage adjustment. f)DVMTester:For cable check, voltage adjustment, etc. g) Cushion:To be used when the PKGs are to be replaced

Note: Be sure to wear a wrist strap when you detach/reattach PKGs (Board Assy) to protect

electronic components from being damaged by electrostatic charges.

PARTS LIST

L

79

NP42H5MF01PA/PB

SYMBO

PKG42H5G1 03B 9S899891

1

PKG42H5C1 17C-08 9S890002

2

PKG42H5J7 02A 9S899895

3

PKG42H5J8 02A 9S899896

4

PKG42H5J5 02A 9S899893

5

PKG42H5J6 02A 9S899894

6

PKG42H5E1 02A 9S899897

7

PKG42H5E1 02C 9S899862 PKG42H5E2 02A 9S899898

8

PKG42H5E2 02C 9S899863

10 11 12

PKG42H5E3/50X6E3 02A 9S899899 PKG42H5J4 02A 9S899919 PKG42H5J3 02A 9S899918

Notes: • The version of a board assy (PKG) is indicated on the label on the board assy.

TYPE NAME VERSION

• When replacing the scanning relay board assys (PKG-C), make sure that the PKG-U and PKG-D of the same version are used, to ensure correct scanning timing.

PART NAME

PART NO

QTY

1 1 1 1 1 1 1 1 1 1 1 1

1

NOTE

High Voltage Board Digital Board Data Relay Board(Left Down) Data Relay Board(Right Down) Data Relay Board(Left Up) Data Relay Board(Right Up) Scan Relay Board(Up)

Scan Relay Board(Down)

Scan Relay Board(Center) Common Connection Board Common Relay Board

11

12

5

Data Relay (Left up)

Data Relay (Right up)

6

1

Scan Relay Board (Up)

7

Common Relay Board

10

High Voltage Board

Common Connection

Digital Board

8

2

Data Relay Board (left)

Data Relay Board (right)

Scan Relay Board (Down)

3

Version label of the board assy (PKG)

• Part name

• Serial number

• HW version • SW version

Digital PKG

• Part name

• Serial number

• Version number

Other PKG

4

Compatible table of the board version

80

NP42H5MF01PA/PB

Upper compatible if no terms.

Name of (board) Version Replaceable Version

High Voltage Board

PKG42H5G1

03B

NoteConditions

03B

Common Connection Board

PKG42H5J4

Data Relay Board(Left Down)

PKG42H5J7

Data Relay Board(Right Down)

PKG42H5J8

Data Relay Board(Left Up)

PKG42H5J5

Data Relay Board(Right Up)

PKG42H5J6

Common Relay Board

PKG42H5J3

Scan Relay Board(Center)

PKG42H5E3/50X6E3

Scan Relay Board(Up)

PKG42H5E1

Scan Relay Board(Down)

PKG42H5E2

Digital Board

PKG42H5C1

01A

02A

01A

02A

01A

02A

01A

02A

01A

02A

01A

02A

01A

02A

01A

02A

01A

02C

01A

02A

01C

02C

01C-07/02C-07 11C-07/12C-07

13C-07

14C-07

12C-08

14C-08

15C-08

16C-08

17C-08

01A/02A

01C/02C

01A/02A

01C/02C

17C-08

Scan Relay Board(up) should be combined with the same version of Scan Relay Board(Down) .

Scan Relay Board(Down) should be combined with the same version of Scan Relay Board(Up).

Follow the procedure below for failure diagnosis. Keep wearing Antistatic wrist Band

81

H Line

TROUBLE SHOOTING

until all work and testing has finished.

Procedure FOR BASIC Service TROUBLE SHOOTING

From Service

Manual of the

product

Exchange PDP

Reconnect or

exchange

Reuse

V Line

Page 87

NG

H Line

Model, Serial No. and Panel ID.

Page 82 (1)

Panel Crack

OK

Connectors/Cables

OK

Page 82 (2)

Page 83 - 85

(Page 87-92)

Phenomenon

NG

Picture

Reproductio

Power-off

Page 91

Page 92-95

Page 119-126

V Line

Page118

Page119-122

Page123-126

(1) Model, Serial No., and Panel ID

82

Exercise Caution when moving a product with damaged glass.

Refer to the photographs below to find Model, Serial No. and Panel ID.

Model/Serial No.

Panel ID

NEC

MODEL NP42H5MF01

408200943 MADE IN JAPAN

CODE AA-C3

NEC Plasma Display Corporation

Above Example Model:NP42H5MF01AA Serial No.: 408200943

(2) Panel Crack

Refer to the photographs below to check panel for crack.

222407145612

Panel may be cracked due to handling during or after transportation.

(3) Connectors/Cables

83

(3-1) Check connectors and cables for breakage or disconnection referring to the photos below.

Data Relay Flexible Cable (UP)

Common Voltage Flexible Cable

Data Relay Flexible Cable (Down)

Scan Voltage Flexible Cable

(Caution) Take care for the cable handling. Careless handling inproduction line may cause this Failure.

(3-2) Check connectors and cables whether they are connected and locked right. See Page 114-115 for the right procedure of connection.

Data Relay Board (LU)

Common Relay Board

Digital Board

Common Connection Board

Data Relay Board (RU)

High Voltage Board

Data Relay Board (LD)

Scan Relay Board (D) Scan Relay Board(U)

Data Relay Board (RD)

Right Connection (Part 1)

84

Locked

Unlocked

High voltage Board( Photo)

- Digital Board

Scan Relay Board (Photo)

- Panel

Common Relay Board (Photo)

- Panel

Right Connection (Part 2)

Digital Board (Photo)

-High Voltage Board

Locked

Unlocked

High Voltage Board (Photo)

-Data Relay Board

High Voltage Board (Photo)

-Scan Relay Board(Photo)

Right Connection (Part 3)

85

Locked

Unlocked

Data Relay Board (Photo)

-Panel

Common Connection Board (Photo)

-Common Relay Board

High Voltage Board (Photo)

-Common Relay Board (Photo)

Right Connection (Part 3)

86

Locked

Unlocked

Data Relay Board (Photo)

-Panel

Common Connection Board (Photo)

-Common Relay Board

High Voltage Board (Photo)

-Common Relay Board (Photo)

Symptom : Vertical line Block

87

(Note)Typical Symptom are only shown. Another Symptom might appear.

Cause/Countermeasure: 1 Open or contact failure of Data flexible Cable

] Clean, Reconnect or exchange connector.

2 Failure in Data IC

] Exchange PDP.

Horizontal Line

Symptom : Horizontal lines

Cause/Countermeasure:

1 Open or contact failure of connector between Data Relay Board

and Digital Board/High Voltage Board

] Clean, Reconnect or exchange connector.

2 Open or contact failure of multiple Data flexible Cables

] Clean, Reconnect or exchange connector.

3 Failure in Data Relay Board

] Exchange the Data Relay Board.

4 Failure in multiple Data IC

] Exchange PDP.

Cause/Countermeasure:

1 Failure in Scan IC on Scan Relay Board - Exchange Scan Relay Board.

2 Open or contact failure of Scan Flexible Cable (CN01-CN04) at output side of Scan Relay Board (U,D)

] Clean, Reconnect or exchange connector.

3 Contact failure of connector between Scan Board and Scan Relay Board

] Clean, Reconnect or exchange connector.

4 Short between terminals of Scan IC due to screw dust

] Clean around the terminals.

Picture Defect

88

(Note) Typical symptom are only shown. Another Symptom might appear.

Symptom:No Picture(Priming flash).

Cause/Countermeasure: 1F302 open ]

Exchange High Voltage Board.

High Voltage Board

Glass Fuse (F302)

OK: Short NG: Open

Cause/Countermeasure:

89

2 If the connector CN7709 disconnected from Data Relay Board (RU )is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) ] Data IC is broken ]Exchange PDP. 3 If the connector CN7709 disconnected from Data Relay Board (RU) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) ] Data Relay Board (LU) or (RU) is failed ]

a) If the connector CN7608 disconnected from Data Relay Board (LU) is short-circuited between Pin 1

and GND (Pin 2 or 6) ]Data Relay Board (LU) is failed ]Exchange Data Relay Board (LU).

b) If the connector CN7708 disconnected from Data Relay Board (RU) is short-circuited between Pin 1

and GND (Pin 2 or 6) ]Data Relay Board (RU) is failed ]Exchange Data Relay Board (RU).

Data Relay Board (LU)

CN7608 CN7708 CN7709

Cause/ Countermeasure : 4 If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) ] Data IC is broken ] Exchange PDP. 5 If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) ] Data Relay Board (LD) or (RD) is failed ]

a) If the connector CN7808 disconnected from Data Relay Board (LD) is short-circuited between Pin 8

and GND (Pin 3 or 7) ] Data Relay Board (LD) is failed ] Exchange Data Relay Board (LD).

b) If the connector CN7908 disconnected from Data Relay Board (RD) is short-circuited between Pin 8

and GND (Pin 3 or 7) ] Data Relay Board(RD) is failed ] Exchange Data Relay Board (RD).

Data Relay Board (RU)

CN7709

OK: Open NG: Short

CN7808 CN7908 CN7909

Data Relay Board (LD)

Data Relay Board (RD)

CN7909

Data Relay Board (RD)

OK: Open

NG: Short

Symptom:No Picture. (Priming doesn’t flash if W-X

90

erminals are short-circuited.)

X (112)

Cause/Countermeasure: No Diode characteristic ]Exchange High Voltage

Board.

W(109) V (107)

T (99~103)

S (93~96) R (91)

High Voltage Board; Surface

Q (86~89) P (81~84)

PH2401F

O (76~78) N (71~74)

M (66~69) L (61~64) K (57~59)

High Voltage Board; Reverse

PH2401F

Checkpoints

A-D M-L A-E N-P B-D O-P C-D Q-R E-R R-S F-N R-T G-M S-T H-I T-V I-J W-X K-L

OK: Diode characteristic NG: Other than above

A (1~4) B (6~9)

C (10~13)

D (15~18)

E (24)

F (33~35) G (39~40)

H (49~50)

I (53)

J (55~56)

Symptom:Abnormalities in a picture

91

One or more vertical bands, Multiple vertical lines

Out of synchronization or duplication

Tr ansparent vertical band

Mosaic

Rectangular color shear,color discrepancy, shear in display

Cause/Countermeasure : 1 Contact failure of connector adjacent to Digital Board or short circuit due to

conductive obstacle

] Clean or Reconnect

2 Failure in circuit on Digital Board

] Failure in Digital Board

A number of lateral lines, Regular noise

Power off

92

Symptom: No Picture(Priming doesn’t flash) ] Power off

(Note) Typical Symptom are only shown. Another Symptom might appear.

Cause/Countermeasure: 1 F301 open ] Exchange High Voltage Board.

2 FU801 open ] Exchange Digital Board.

High Voltage Board

OK: Short NG: Open

Digital Board

Glass Fuse (F301)

OK: Short NG: Open

Chip Fuse (FU801)

Cause/Countermeasure : If short-circuited, disconnect connector between High Voltage Board and Scan Relay Board and,

93

4 Short between NEGA-POSI on High Voltage Board ]Exchange High Voltage Board. 5 Short between NEGA-POSI on Scan Relay Board (U) ]Exchange Scan Relay Board (U). 6 Short between NEGA-POSI on Scan Relay Board (D) ]Exchange Scan Relay Board (D).

High Voltage Board

Scan Relay Board (U)

NEGA

POSI

Checkpoint NEGA-POSI

OK: More than kΩ NG: Short

Scan Relay Board (D)

POSI

Checkpoint NEGA-POSI

OK: More than kΩ NG: Short

NEGA

Symptom: No Picture ] Power off(Priming flash)

94

Cause/Countermeasure: R91 open ] Exchange High Voltage Board.

High Voltage Board

Fuse Resistor (R91)

R91 OK: About 2.2 Ω(1W)

NG: Open

Symptom: Failure in Writing

95

] Power off

Dark and rough picture

Many light spots on dark portion

Symptom: White pattern even in no

signal ] Power off

Cause/Countermeasure: R43,R61 open

] Exchange High Voltage Board.

Cause/Countermeasure:R150 open ] ExchangeHigh Voltage Board.

Fuse Resistor (R150)

Fuse Resistor (R43),(R61)

R43 OK: About 3.3 Ω(2W)

NG: Open

R61 OK: About 4.7 Ω(2W)

NG: Open

R150 OK: About 4.7 Ω(2W)

NG: Open

METHOD OF DISASSEMBLY

96

Follow the procedure below for diagnosis.

Disassembly

Prepare tools.

Prepare product.

Disconnect connectors and cables on failed Board.

Detach failed Board.

Put on good Board.

Connect connectors and cables.

Right photo

Page 128

Page129-130

Page129

Page 128

(Caution) Put cushion under failed PDP to cover general surface of glass before laying it’s screen down.

Detach connectors and cables on failed Board.

97

(Caution) Be careful of handling cables and connectors to avoid Failure. Be sure to take off Heat Sink before detach Data Relay Board. See Page 30 for the procedure.

Data Relay Board (LU)

8 connectors

5 connectors

Common Connection Board

Digital Board 7 connectors

Data Relay Board (LD)

8 connectors

Data Relay Board (RU)

Common Relay Board

1 connector

9 connectors

High Voltage

Board

6 connectors

Data Relay Board (RD)

9 connectors

5 connectors

Scan Relay Board (U)

5 connectors

Scan Relay Board (D)

Loosen screws of failed Board and put on good Board.

(Caution) Be careful not to leave screwdriver, screw or screw dust. Be sure to take off Heat Sink before detach Data Relay

Board. See the next page for the procedure.

Data Relay Board (LU); 3 screws

9 screws

Common Connection Board

Digital Board 4 screws

Common Relay

Board15

screws

Data Relay Board (RU); 3 screws

High Voltage

Board15

screws

2 screws

Scan Relay Board (U)

2 screws

Scan Relay Connection Board

Data Relay Board (LD)

3 screws

Scan Relay Board (D)

Data Relay Board (RD)

3 screws

Put on connectors and cables of good Board.

98

(Caution) Be sure to put on Heat Sink after assembling Data Relay Board.

Data Relay Board (LU)

8 connectors

5 connectors

Common Connection Board

Digital Board 7 connectors

Data Relay Board (LD)

8 connectors

Data Relay Board (RU)

Common Relay Board

1 connector

9 connectors

Data Relay Board (RD)

9 connectors

High Voltage

Board

6 connectors

5 connectors

Scan Relay Board (U)

5 connectors

Scan Relay Board (D)

How to detach Heat Sink

99

Before detaching

(Caution) Stress on detaching easily breaks flex cable because Data TCP is sticking with Heat Sink (heat-conductive silicone sheet).(See Photo4)

1. Slowly swing Heat Sink back and forth.(1,2)

2. Gently lift Heat Sink up from Data TCP.(1,2)

3. Repeat1 and 2 until Heat Sink is taken off.(3)

Heat Sink and Data TCP

1

2

4

Heat-conductive silicone sheet

Reverse of Heat Sink

3

Be careful of sticking.

Data TCP mounted on Flexible cable

Heat Sink

(1) Adjustments

100

Follow the procedure below.

1-1)Conduct “(3)Adjustment of Vsw1 & Vsw2”and“(4)Adjustment of Vbw& Vp”, when High Voltage Board is replaced. 1-2) There is no need of adjustment if Board other than High Voltage Board.

(2) Voltage Label Check

Voltage Label

Be sure to confirm voltages on Voltage label before conducting adjustment.

Example Vbw : 115.2 Vsw1 : 220.2 VP : 249.8 Vsw2 : 210.1

(3) Adjustment of Vsw1 & Vsw2

Vsw1 : Adjust VR3 so that the voltage between Test Pad (TP328) and GND becomes

“Rated Voltage on Label ± 0.5V”.

Vsw2 : Adjust VR4 so that the voltage between Test Pad (TP310) and GND becomes

“Rated Voltage on Label ± 0.5V”.

(Caution) Use the nearest chassis for grounding.

High Voltage Board

VR3 Vsw1

(s190.0/d70.0)115.2/220.2/249.8/210.1 *************************************

408200943

Vbw Vsw1

TP310 Vsw2

Vp

Vsw2

VR4 Vsw2

TP328 Vsw1

Pioneer PDP42_TrainingGuide Datasheet

Contents

Front view

Rear view

Caption Input

No Power

No HDMI

No Component

DISASSEMBLY

Power off