Daewoo DP-42SM Manuel utilisateur

Nov. 2003

DAEWOO ELECTRONICS Corp.

http ://svc.dwe.co.kr

42” PLASMA PDP MONITOR

CHASSIS : SP-115

MODEL : DP-42SM

(FOR LG MODULE)

S/M NO. : DSP115BEF2

Contents

I. Parts with the exception of MODULE

1. Safety Precautions 3

2. Product Specification

2-1. SPECIFICATION 4

2-2. Available Input Signal 6

3. BLOCK DIAGRAM 8

4. Description Of Each BLOCK

4-1. A/V BLOCK 9

4-1-1. A/V BLOCK DIAGRAM 9

4-1-2. VIDEO PCB 10

4-1-3. JACK PCB 14

4-1-4. KEY PCB 15

4-1-5. LED PCB 15

4-2. POWER PCB 16

4-3. BASIC CONGIFURATION 17

5. SERVICE MODE

5-1. Entering SERVICE MODE 18

5-2. Default Values For SERVICE MODE Items 18

5-3. Description Of SERVICE MODE Items 19

6. Adjusting Method

6-1. Adjusting WHITE BALANCE 23

6-2. Adjusting POWER PCB 23

7. SOFTWARE UPGRADE Method 25

8. Main PCB Trouble Diagnosis 28

8-1. VIDEO & JACK PCB Trouble Diagnosis 28

8-2. POWER PCB Trouble Diagnosis 33

9. TROUBLE SHOOTING

9-1. Facts You Must Know When Diagnosing And Repairing 34

9-2. Representative Symptoms When Each PCB Breaks Down 34

9-3. Trouble Diagnosis And Repairing Method For Representative Symptoms 35

10. ASSEMBLY LIST 39

11. EXPLODED VIEW 42

II. Parts of MODULE

1. Safety Precautions 43

2. Formation and Specification of Module 46

3. Adjustment 47

4. Trouble Shooting 52

4-1 Checking for No Picture 52

4-2 Hitch Diagnosis Following Display Condition 54

-1-

4-2-1. 4/7 or 3/7 of the screen doesn’t be shown 54

4-2-2. Screen doesn’t be shown as Data COF 54

4-2-3. It is generated unusual pattern of Data COF IC unit 55

4-2-4. Regular Stripe is generated about the quantity of one Data COF IC or more 56

4-2-5. Screen doesn’t be shown at all as scan COF 56

4-2-6. Regular stripe is generated at regular internal on the whole screen 57

4-2-7. Data copy is generated to stripe direction 57

4-2-8. One or more stripe is generated on the screen 58

4-2-9. One or more horizontal line is generated on screen 58

4-2-10. Lightness of screen is wholly darken though there is input-signal-pattern 58

4-2-11. Different color is shown partially during full-white-screen or electric discharge is

generated during full-black-screen 59

4-2-12. Full-white pattern it happened that the lightness of middle is darken while full-white

pattern 59

4-2-13. Some lightness of some color doesn’t not generated well 59

5. Block Diagram of Module 60

-2-

-3-

1. Safety Precautions

I. Parts with the exception of MODULE

1. Safety Precautions

(1) When moving or laying down a PDP Set, at least two people must work. Avoid any impact towards

the PDP Set.

(2) Do not leave the broken PDP Set on for a long time. To prevent any further damages, after check the

condition of the broken Set, make sure to turn the power (AC) off.

(3) When opening the BACK COVER, turn off the power (AC) to prevent electric shock. When a PDP

is on, high voltage and high current exist inside the Set.

(4) When loosening screws, check the connecting position and type of the screw. Sort out the screws

and store them separately. Because screws holding PCB are working as electric circuit

GROUNDING, make sure to check if any screw is missing when assembling.

(5) If you open the BACK COVER, you will see a

Panel Gas Exhaust Tube (Fig. 1). If this part is

damaged, entire PDP PANEL must be replaced.

Therefore, when working, be careful not to

damage this part.

Fig 1. Panel Gas Exhaust Tube

(6) A PDP Set contains a different kind of connector cables. When connecting or disconnecting

connector cables, check the direction and position of the cable beforehand.

(7) When disconnecting connectors, unplug the connectors slowly with care. Especially when

connecting/disconnecting FFC (film) cables or FPC cables, do not unplug the connectors too much

instantaneously or strongly, and always handle the cables with care.

(8) Connectors are designed so that if the number of pins or the direction does not match, connectors

will not fit. When having problem in plugging the connectors, make sure to check their kind,

position, and direction.

-4-

2. Product Specification

I T E M S P E C I F I C A T I O N REMARK

1. GENERAL

1-1. MODEL NO DSP-4280LVS(G, W)

1-2. CHASSIS NO SP-115

1-3. SCREEN SIZE 42 (16:9)

1-4. COUNTRY America

1-5. RESOLUTION 852(H) X 480(V)

1-6. REMOCON TYPE R-V28A(E)

1-7. SAFETY STANDARD UL,C-UL,FCC(CLASS B)

2. MECHANICAL

2-1. APPEARANCE

1) WITHOUT STAND WxHxD=1,044 x 631 x 82.8 mm

2) WITH STAND WxHxD=1,044 x 705.9 x 310 mm

3) CARTON BOX WxHxD=1,256 x 800 x 327 mm

2-2. WEIGHT

1) WITHOUT STAND 27.7 Kg

2) WITH STAND 34.6 Kg

3. ELECTRICAL

3-1. VIDEO INPUT COMPOSITE (NTSC, PAL, SECAM, PAL-M/N, NTSC4.43)

& S-VHS (50/60Hz Y/C) 2 PORTS

3-2. DTV/DVD INPUT 1080i, 720P, 480P , 480i

(Y, Pb/Cb, Pr/Cr, COMPONENT SIGNAL) 2 PORTS

3-3. PC INPUT VGA ~ UXGA (15 PIN D-SUB) 1 PORT

3-4. SOUND INPUT VIDEO 2 PORTS, DTV/DVD 2 PORTS,PC 1 PORT

3-5. SPEAKER OUTPUT 8W(R) + 8W(L)

3-6. POWER REQUIREMENT AC 100V~240V, 50/60Hz

3-7. POWER CONSUMPTION 320W

3-8. RS-232 CONTROL COMMUNICATION (EXTERNAL UPGRADE)

3-9. FUNCTION

1) SCREEN MODE *PC: H/V SIZE AND POSITION ADJUSTMENT

*VIDEO : AUTO,16:9,PANORAMA,ENLARGE LB, ENLARGE LBS

*DTV/DVD : NOMAL,16:9

2) ZOOM 20 STEP ZOOM

3) OSD 11 LANGUAGES (ENGLISH,KOREAN,GERMAN,ITALIAN,

DUTCH,PORTUGUESE,SPANISH,MEXICAN,RUSSIAN,

CHINESE,FRANCH)

4) OTHERS STILL, SLEEP MODE , SOUND MODE

2-1. SPECIFICATION

-5-

Product Specification

I T E M S P E C I F I C A T I O N REMARK

4. OPTICAL

4-1. SCREEN SIZE 42 (106Cm) DIAGONAL

4-2. ASPECT RATIO 16:9

4-3. NUMBER OF PIXELS 852(H)X480(V)

4-4. DISPLAY COLOR 16,700,000 COLOR( EACH 8BITS FOR RGB )

4-5. CELL PITCH 1.08(H)X1.08(V)

4-6. PEAK LUMINANCE 360cd/ (WITH FILTER GLASS)

4-7. CONTRAST RATIO 1000:1

4-8. VIEWING ANGLE 160(VERTICAL/HORIZONTAL)

5. USERCONTROL & ACCESSORIES

5-1 CONTROL BUTTON(SET) AC POWER BUTTON(PUSH-PULL S/W)

MENU, SELECT, UP, DOWN, LEFT, RIGHT(SOFT S/W)

5-2. REMOTE CONTROL POWER, INPUT SELECT, CONFIRM (or OK),

( R-28A(E) ) EXTENSION -, EXTENSION +, MENU, UP, DOWN,

VOLUME UP, VOLUME DOWN, SILENCE, PICTURE

MODE, PICTURE STILL, PICTURE SIZE, SOUND

MODE, TIMER SLEEP

5-3. ACCESSORIES REMOTE CONTROLLER,BATTERY,INSTRUCTION MANUAL,

A/V CABLE, PC CABLE, POWER CORD

OPTION : STAND WALL HANGER, SPEAKER R/L

-6-

Product Specification

Resolution H Freq. (KHz) V Freq. (Hz) Remark Patt No.

640x350 31.469 70.1 IBM 203

37.861 85.1 VESA 11

640x400 24.823 56.4 NEC 15

30.48 60.0 PGA 871

31.469 70.1 IBM (DOS) 204

37.861 85.1 VESA 16

640x480 31.469 59.9 DOS 17

35 66.7 Macintosh 18

37.861 72.8 VESA 19

37.5 75.0 VESA 20

39.375 75.0 IBM 21

43.269 85.0 VESA 22

720x400 31.47 60.0 VGA 876

31.469 70.1 IBM 13

37.927 85.1 VESA 14

720X480 31.54 60.0 480P 953

720X576 15.63 25.0 PAL 950

800x600 35.156 56.3 VESA 23

35.16 57.2 VESA 24

37.879 60.3 VESA 24

48.077 72.2 VESA 25

46.875 75.0 VESA 26

53.674 85.1 VESA 27

832x624 49.726 74.0 Macintosh 28

1024x768 48.193(48.077) 59.3(59.8) Macintosh(OAK) 29

48.363 60.0 VESA 30

53.95 66.1 XGA 890

56.476 70.1 HP&VESA 31

60.241 74.9(74.6) Macintosh 32

60.023 75.0 VESA 33

68.677 85.0 VESA 34

80.66 100.0 Fujitsu 939

70.84 84.0 SUN 926

1152X864 54 60.0 VAX 936

63.851 70.0 VESA 35

67.5 75.0 VESA 36

77.094 85.0 VESA 37

1152x900 61.796 66.0 SUN 38

71.713 76.0 SUN 39

1280X720 45 60.0 720P 954

1280X960 60 60.0 VESA 40

75 75.0 VESA 41

85.938 85.0 VESA 42

2-2. Available Input Signal

(1) PC

-7-

Product Specification

Resolution H Freq. (KHz) V Freq. (Hz) Remark Patt No.

1280X1024 46.433 43.4 VESA 205

63.981 60.0 VESA 44

70.66 66.5 VAX 937

74.88 70.0 NEC 921

78.125 72.0 HP & HITA 206

78.855 74.1 Sony & NEC 46

79.976 75.0 VESA 47

81.13 76.1 SUN 927

91.146 85.0 VESA 48

1600X1200 62.5 48.0 VESA

75 60.0 VESA 50

81.25 65.0 VESA 862

87.5 70.0 VESA 863

93.75 75.0 VESA 864

100 80.0 VESA 865

(2) DTV

-1080i/ 60 Hz

-720P / 60 Hz

-480P / 60 Hz

(3) VIDEO

-PAL, PAL-M, PAL-N

-NTSC , NTSC4.43

- SECAM

-8-

POWER PCB

VIDEO PCB

JACK PCB

X-RIGHT PCB

CONTROLLER PCB

KEY PCB

LEDPCB

AC SWITCH

FLASH

MEMORY

P601 P602

DEINTERLACER

[DPTV-MVS]

Crystal : 14.3 MHz

20 MHz

24.57 MHz

PLL CLK : 128 MHz

33.5 MHz

P502

PA502

P212

DTV/DVD

SWITCH

[CXA2151] SOUND AMP

Crystal : 4 MHz

P604

PA4 PA5

DSP-4280LVS BLOCK DIAGRAM

KEY PCB LED PCB

PWR

Y-SUB PCB

PWR

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

DATA DRIVERIC

DATA COF

P4 P3

P31 PWR

P1P800

P1P2

P211 P210P110

P7P8 P5P6 P3P4 P1P2

SCAN

DRIVER

PWR

Y DRV UPPERY DRV UPPER

Z-SUB PCB

PWR

Clock Oscillator : 100 MHz

PA6

IMAGE

PROESSOR

[PW171]

ADC

[CXA3516]

AV SWITCH

[CXA2069]

SOUND

PROESSOR

[MSP3420]

P111P112P113

P300 P101

SCAN

DRIVER

SCAN

DRIVER

SCAN

DRIVER

SCAN

DRIVER

SCAN

DRIVER

SCAN

DRIVER

SCAN

DRIVER

VIDEO

PROCESSOR

[SAA7118]

3D COMBFILTER

[UPD64083]

3. BLOCK DIAGRAM

-9-

4. Description Of Each BLOCK

4-1. A/V BLOCK

4-1-1. A/V BLOCK DIAGRAM

to PWR

DIGITAL

P602P601

P12V

GND

SCL

GND

TXD

RXD

GND

VIN

FB_SC

S_MUTE

MSP_RST

R_SC

G_SC

B_SC

SDA

SEL1

SEL2

SEL3

VPC

HPC

GND

BPC

RPC

GND

B/PB

GND

R/PR

Y_DVD

GND

G/Y_DTV

GND

GPC

GND

!P502

1!PA6

1432

!PA502

!JACK

PCB

GND

VVS

VHS

VPEN1

GBLKSLP GPEN GSOG

GHSFOUT

DCLKB

DEN

S_RESET

V_MUTE

DVS

DHS

GCLK

GHS

GVS

GCOAST

VIN

R_OUT L_OUT

RIGHT

LEFT

GREF

VPEN

DECOE

YCOMB

CCOMB

LED_P

GND

E33V

STB5V

COLUM1

COLUM2

COLUM3

DATA1

DATA2

PA4

PA5

P603

!NUL

P12V

GND

P5V

GND

LED_P

POWER_CLT

GND

RD2-

RD1+ RD1-

RD2-

RD2+

DISPEN

SCLK

GND

RC2-

RB2+

RC2+

RB1- RB+

RA1-

RB2-

RA2-

RA1+

RC+ RC-

RA2+

RCLK2-

RCLK1+

RCLK2+

RCLK1-

STB5V

SLE

SDATA

STB5V

IC600

PW171

IC406

DPTV-MVS

IC401

SAA7118

IC400

u64083

IC500

CXA3516

PA602LED

15432 6

15432

PA601

KEY PCB

IC706

CXA2151

IC704

CXA2069

IC700

MSP3420

IC702

TDA7480

IC701

TDA7480

6 7 8

26 50

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