BGH BP4201S SERVICE MANUAL

SER

VICE MANUAL

Model : BP4201S(NTSC-PAL M/N)

PLASMA DISPLY PANEL

CONTENT

- 1 -

SAFETY INSTRUCTIONS.........................................................................................2

FUNCTIONAL OVERVIEW.......................................................................................3

BLOCK DIAGRAM..................................................................................................6

PDP TV BOARD LOCATION....................................................................................7

PIN CONFIGURATIONS..........................................................................................8

TROUBLESHOOTING..............................................................................................9

SPECIFICATIONS....................................................................................................13

PCB LAYOUT..........................................................................................................20

SCHEMATIC DIAGRAM..........................................................................................22

PARTS LIST.............................................................................................................36

EXPLODED VIEW ...................................................................................................43

SAFETY INSTRUCTIONS

- 2 -

IMPORTANT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Parts list. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug of the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part. Any voltage measured must not exceed 0.75 volt RMS, which is, corresponds to 0.5mA. In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

FUNCTIONAL OVER

VIEW

- 3 -

FRONT VIEW

Œ Input source selection button ´ Menu selection button ˇ Volume adjustment buttons

(also select items on the OSD)

¨ Channel selection buttons

(also move items on the OSD)

ˆ Enter button

(Confirm your choice, 42” only)

Ø Power On / Off button ∏ Power Indicator

” Remote Control Sensor

REAR VIEW

Œ SERIAL Input ´

DVI Input

ˇ PC RGB Input ¨ Component 1 & 2(Y/Pb/Pr, Audio(L/R)) ˆ Speakers Out (8Ω) : Connect external speakers. Ø AV Input 1 ∏ AV Input 2 ” RF IN : 75ΩCoaxial connector for Aerial / Cable Network. ’ AV Input 3 ˝ S-Video Input Ô Audio Output(L/R)  PC DVI Audio in Ò Power Input : Connect the supplied power cord.

SERIAL Input DVI Input

PC RGB Input

Y Pb Pr L R

Component 2 Component 1

Speakers OUT(8 )

RL

AV Input 1 V L R

AV Input 2 V L R

RF IN

AV Input 3 V L R

Audio

L

PC DVI

S-Video Input

Output

R

Audio in

Power

(AC100-240V-, 50/60Hz)

3

FUNCTIONAL OVER

VIEW

- 4 -

REMOTE CONTROLLER

1. POWER

Power On/Off.

2. MUTE

Toggles speaker/headphone sound mute status.

3. SLEEP

Displays current sleep timer value by minute when no sleep timer OSD activated. Setup minimum sleep timer value more than current sleep timer value when sleep timer OSD activated. If sleep timer is maximum value, disables sleep timer.

4. Dual I-II

Displays MTS of sound format when MTS OSD is not activated. Changes sound format when MTS OSD is activated.

5. ARC

Displays aspect ratio of image when aspect ratio OSD is not activated. Changes aspect ratio when aspect ratio OSD is activated.

6. 0~9

Enters digit value to change program directly.

7. 100

Setting TV channel.

8. SWAP

Swaps main input source and PIP input source.

9. PC

Changes to PC / DVI source. If current input source is PC, input source is changed to DVI.

10. MENU

You can use this button to have the menu display on the screen

11. VOL+/VOL-

Volume up/down adjust

12. ENTER

While using on-screen menus, press this button to activate or change a particular item.

13. CAPTION

If current input mode is Video or TV, Display the CAPTION or change the CAPTION mode.

14. SOURCE

Activates source change OSD when source change OSD is not activated. Deactivates source change OSD when source change OSD is activated.

POWER

MUTE

SLEEP STILL INFO

DUAL I-II

PRE-CH

CH+

MENU

CAPTION

ADD/ERASE

EXIT

CH-

VOL-

VOL+

ARC PSM SSM

PIP

P.INPUT

P.POSITION

P.SIZE

SOURCE

P

C

S

W

A

P

S

.

S

E

L

E

C

T

V

1 2 3

4 5 6

7 8 0 9

100

ENTER

!

“ ‘

+ =

Q

@ # $ %

^

& *

(

)

1

2 3

4

5 6

7 8

0

9

FUNCTIONAL OVER

VIEW

- 5 -

REMOTE CONTROLLER

15. INFO

Displays input source information.

16. STILL

Toggles status between motion and still image.

17. SSM(Sound Standard Mode)

Displays sound standard when sound standard OSD is not activated. Changes sound standard when sound standard OSD is activated.

18. PSM(Picture Standard Mode)

Displays picture standard when picture standard OSD is not activated. Changes picture standard when picture standard OSD is activated.

19. PIP

Toggles PIP status

- P.INPUT Changes PIP input sources when PIP is on.

- P.POSITION Changes PIP position when PIP image size is not double screen.

- P.SIZE Changes PIP image size when PIP is on.

20. PRE-CH

Changes to last tuned program.

21. S.SELECT

Selects main / PIP sound source when PIP is on.

22. TV

If current input source is not TV, changes to TV input source.

23. EXIT

Exit from the OSD menu.

24. CH+/CH-

Channel up/down

25. ADD/ERASE

Add TV channel or Erase when editing TV channels.

POWER

MUTE

SLEEP STILL INFO

DUAL I-II

PRE-CH

CH+

MENU

CAPTION

ADD/ERASE

EXIT

CH-

VOL-

VOL+

ARC PSM SSM

PIP

P.INPUT

P.POSITION

P.SIZE

SOURCE

P

C

S

W

A

P

S

.

S

E

L

E

C

T

V

1 2 3

4 5 6

7 8 0 9

100

ENTER

!

“ ‘

+ =

Q

@ # $ %

^

& *

(

)

1

2 3

4

5 6

7 8

0

9

BLOCK DIAGRAM

- 6 -

MAIN/RF BOARD’S BLOCK DIAGRAM

DTV1_Y / Pb / Pr

PC (R / G / B / H / V)

G [9:2]

AV1 CVBS

MUX_LU1 / CH1

TA6422

VCT49xyi

MST3788

(ADC/TMDS)

R / G / B [9:2]

AV 1 L/R

PANEL

LVDST

X

THC63LVDM83

R

C

H

1

C

H

2

RX 0 / 1 / 2 / CLK / -, +

I2C

Display Output

(R/G/B [9:2]

/H/V/EN/CLK)

LVDS

(CLK/A/B/C/D -, +)

FLASH MEMORY

8MBit

Memory Interface

(A0-19/D0-15/ CE/OE/WE)

DDR SDRAM

DDR SDRAM Interface

(MA0-12/MD0-31)

I

MAG

E

PROCESSOR

PW218

Satrun NTSC (USA ) BLOCK DIAGRAM

CLK/H/V/DE

DTV2_Y / Pb / Pr

AV2 CVBS

Svideo C / L

AV3 CVBS

SAW FilterTuner VIF

DTV1 L/R

AV3 ,Svideo L/R

AV 2 L/R

DTV2 L/R

Tuner SIF

TPA3002D2 Internal Speaker L /R Out

External Speaker L /R Out

PC/COMPONENT Video

RF / Video

Sound In

Audio Out

Audio L/R Out

SATURN NTSC - PAL M/N BLOCK DIAGRAM

PDP TV BOARD LOCA

TION

- 7 -

PDP TV PCB LOCATION

PIN CONFIGURA

TIONS

- 8 -

1 Tx 2

-

2 Tx 2

+

3 Grounding 4 No connection 5 No connection 6 DDC Clock (SCL) 7 DDC Data (SDA) 8 No Connection 9 Tx 1

-

10 Tx 1

+

11 Grounding 12 No connection 13 No connection 14 DDC Input Power (+5V) 15 Self-Raster

16 Hot Plug Detect 17 Tx 0

-

18 Tx 0

+

19 Grounding 20 No connection 21 No connection 22 Grounding 23 Tx CLK

+

24 Tx CLK

-

C3 No connection C5 No connection C4 No connection C2 No connection C5 No connection C1 No connection

DVI connector

Pin Signal Pin Signal

This model did not support a R,G,B signal on DVI connection

1 Red (R) 2 Green (G) 3 Blue (B)

4

Grounding 5 Grounding (DDC) 6 Red (R) Grounding 7

Green (G) Grounding

8

Blue (B) Grounding

9 Reserved

10

Sync Grounding 11 Grounding 12

Data (DDC) 13 Horizontal sync. 14 Vertical sync. 15

Clock (DDC)

RGB Input connector

Pin RGB IN Pin RGB IN

Pin Name Description 1 GND Ground(Y)

2 GND Ground(C) 3 Y Intensity(Luminance) 4 C Color(Chromiance)

At the TV(Female)

12

34

DVI CONNECTOR

RGB INPUT CONNECTOR

S-VIDEO CONNECTOR

TROUBLESHOOTING

- 9 -

Problem

No picture or sound

Poor picture, good sound

Picture is OK but there is no sound

Remote control does not operate.

No image on a specific channel

Image is not stable and may appear to vibrate; horizontal bars appear.

No color on a specific channel (a black & white image)

Only snow and noise appear on the screen

Possible solution

■ Make sure the TV is plugged in.

■ Make sure the power cord is connected to a wall socket

correctly.

■ Check the antenna connections.

■ Check the volume.

■ Adjust the brightness and contrast in the picture menu.

■ Check antenna or cable connections.

■ Press the MUTE button on the remote control.

■ Check another channel.

■ Press the VOL + button to increase the volume.

■ Batteries could be weak. Replace the batteries to a new

ones.

■ Locate the PDP at least one meter away from fluorescent lights.

■ Clean the transmission window of the remote control.

■ Make sure the channel selection is correct.

■ Change the antenna direction to the right or left.

■ Adjust the fine tuning of the channel.

■ Make sure there is no powerful electromagnetic wave

interference from the transmitting station.

■ Stop using a hair drier, electric drill or electric blender.

■ Check other channels to see if the specific channel is

broadcasting a black & white program.

■ Adjust the color in the picture menu.

■ Check the antenna and cable connections.

■ Check the another channel.

Simple check point before disassembly the back cover.

TROUBLESHOOTING

- 10 -

NO POWER

NO Power

Check power cord

change

power cord

Check Power inlet & Harness

Check Fuse

<F101>

T250V, 8A

Check SMPS

output Voltage

Change SMPS

Change Main board

or key pad board

Change the Fuse

Change

Power Inlet or Harness

o.k

no good

o.k

TROUBLESHOOTING

- 11 -

NO PICTURE

NO Picture

Check power LED color

Push

power button

Check SMPS output voltages

<VE, VS, VSCAN, VSET, VA>

Check

LVDS. DC power connection

on Main board

Check SMPS

output voltage

after disconnected

CN8003

(on SMPS)

Check SMPS

output after disconnected

CN8002

(on SMPS)

Change Main board

Change SMPS board

Change X- Main board

Change

Y- Main & Y -

buffer

boards

Re connect

LVDS. DC power

connecters

red color

blue color

good

no good

good

no good