BBK LT3209S, LT4005S Schematic

JL328/378/408-XP Service Manual

1. Precautions and Safety Notices ································· 4

2. Specification ················································· 5

3. Front Panel Function Control Description ························· 12

4. Adjusting Procedure ········································· 18

5. Trouble Shooting Flow Chart ·································· 22

6. Exploded Diagram and Spare Parts List ·························· 32

7. Block Diagrams ·········································································37

8. Schematic Diagrams ·····························································38

9. PCB Layout Diagrams ·········································55

1. Precautions and Safety Notices

Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in the user's manual for this product.

(1) Read all of these instructions. (2) Save these instructions. (3) Follow all warnings and instructions a marked on the product. (4) Unplug this product from the wall outlet before cleaning.Do not use liquid cleaners or aerosol cleaners, use

a damp cloth for cleaning.

(5) Do not use this product near water. (6) Do not place this product on an unstable cart,stand or tablle.The product may fall,causing serious

damage to the product.

(7) Do not tear up the EMI label, if the label has been destroyed,that must to past same size label on the same

position.

(8) Slots and openings in the cabinet and the back or bottom are provided for ventilation,to ensure reliable

operation of the product and to protect it from overheating,those openings must not be blocked or covered.The openings should never be blocked by placing the product on a bed,sofa, rug, or other similar surface.This product should not be placed in a built-in installation less proper ventilation is provided.

(9) This products should be operated from the type of power source indicated on the marketin label. If you are

not sure of the type of power available, consult your dealer or local power company

(10) This product is equipped with a 3-wire grounding type plug,a plug having a third (grounding) pin. This

plug will only fit into a grounding-type power outlet. This is a safety feature, if you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the purpose of the grounding-type plug.

(11) Pay attention to the code which connects with apheliotropism board of inside panel.and don’t hook it. (12) Do not allow anything to rest on the power cord.Do not locate this product where persons will walk on the

cord.

(13) If an extension cord is used with this product,make sure that the total of the ampere ratings on the

product plugged into the extension cord to the waplugged into outlet does not exceed 15 ampere.

(14) Never push objects of any kind into this product through cabinet slots as they may touch dangerous

voltage points or short out parts that could result in a risk of fire or electric shock.Never spill liquid of any kind on the product.

(15) Do not attempt to service this product yourself,as opening or removing covers may expose you to

dangerous voltage points or other risks.Refer all servicing to service personnel.

(16) Unplug this product from the wall outlet and refer servicing to qualified service personnel under the

following conditions :

a. When the power cord or plug is damaged or frayed. b. If liquid has been spilled into the product. c. If the product has been exposed to rain or water. d. If the product does not operate normally,when the operating instructions are followed.Adjust only those

controls that are covered by the operating instructions since improper adjustment of other controls may result in damage and will often require extension work by a qualified technician to restore the product to normal operation.

e. If the product has been dropped or the cabinet has been damaged. f. If the product exhibits a distinct change in performance,indicating a need for service.

2. Specification

328XP Panel

Item Specifications Display pixels 1366 (H) x 768 (V)

pixels ( 1 pixel = 1 RGB cells )

Display Area 708.954mm(H) x 398.592mm (V) Pixel Pitch 0.1730 (H) x 0.5190 (V)mm Display Colors 16.7M Pixel Arrangement R+G+B vertical stripe Display Mode Normally Black Mode Brightness 550nits Contrast Ratio 1000:1 typical Brightness Uniformity 75% min. Viewing Angle

±88° (H), ±88°(V) Typical at CR ≧ 20 Color Saturation NTSC 75% Color Chromaticity (CIE) White: x =0. 285 , y= 0.293 Frame Rate 50Hz/60Hz Response Time 8ms typical Surface Treatment AG,3H

378XP Panel:

Item Specifications Panel Name AUO

Panel Model No. T370XW01 Display pixels 1366 (H) x 768 (V) pixels ( 1 pixel = 1 RGB cells )

Display Area 819.6mm (H) x 460.89mm (V) Pixel Pitch 0.6mm Display Colors 16.7M Pixel Arrangement R+G+B vertical stripe Brightness 500nits typical Contrast Ratio 1000:1 typical Viewing Angle

±88° (H), ±88°(V) Typical at CR ≧ 10 Color Chromaticity (CIE) White: x= 0.280 , y =0. 290 Response Time 8ms (Gray to Gray) Surface Treatment Hard-Coating (3H), Anti-Glare, Reflectance < 2%

408XP Panel:

Item Specifications Panel Name SAMSUNG

Display pixels 1366 (H) x 768 (V) pixels ( 1 pixel = 1 RGB cells ) Display Area 885.168mm (H) x 497.664mm (V) Display Colors 16.7M Pixel Arrangement R+G+B vertical stripe Brightness 500nits typical Contrast Ratio 1200:1 typical Viewing Angle

±89° (H), ±89°(V) Typical at CR ≧ 10 Color Chromaticity (CIE) White: x= 0.280 , y =0. 290 Response Time 8ms (Gray to Gray) Surface Treatment

Haze 40%， Hard-Coating (3H)

INPUT Source :

Connector types

Inputs & Outputs Signals Video Format

Video Sound Main-TV PAL/ SECAM PH Type None RGB+Y/C+

CVBS(input/output)+ L/R(input/output) RGB+Y/C+

CVBS(input/output)+ L/R(input/output) Video1 + L/R Audio CVBS RCA x 1 RCA x 2(Red, White) Video2 + L/R Audio CVBS RCA x 1 RCA x 2(Red, White) S-VIDEO+ L/R Audio Y/C Mini Din 4 Pin RCA x 2(Red, White) Component1(Y,Pb/Cb,,

Pr/Cr) + L/R Audio Component2(Y,Pb/Cb2,,

Pr/Cr2) + L/R Audio VGA+ L/R Audio Analog RGB VGA15 Pin RCA x 2(White, Red) HDMI Digital signal HDMI 19Pin

RGB+Y/C+ CVBS(input/output)+

L/R(input/output) RGB+Y/C+CVBS(input

/output)+L/R(input/outp ut)

480i.576i.480p,576p.7 20p, 1080i

SCART 21pin

RCA x 3 RCA x 2(Red, White)

Note:

A. SCART connector

B. HMDI connector is a type A receptacle for video/audio mode.

1. TMDS Data 2+ 9. TMDS Data 0- 17. CEC/GND

2. TMDS Data 2 shield 10. Clock + 18. +5V Power

3. TMDS Data 2- 11. Clock shield 19. Hot Plug Detect

4. TMDS Data 1+ 12. Clock -

5. TMDS Data 1 shield 13. CEC

6. TMDS Data 1- 14. NC

7. TMDS Data 0+ 15. DDC CLK

8. TMDS Data 0 shield 16. DDC DATA

C. D-Sub Connector IN. (This function also can provides to HDTV.)

D-Sub type Connector pin assignment

1. Red Video 6. Red Ground 11. GND

2. Green Video 7. Green Ground 12. SDA For DDC1/2B

3. Blue Video 8. Blue Ground 13. H-sync.

4. GND 9. +5V from PC 14. V-sync.

5. Vdd from PC for DDC 10. Sync. GND 15. SCL For DDC1/2B

a) RCA jacks are all female type.

b) Mini DIN CNC 4 Pins (SCN570S3NS00000) for S-video, the pin assignment is

described as below:

1: Ground 2: Ground 3: Y 4: C

HDMI

Format

Level/Impedance

TMDS Mode

Frequency Fh = 31~80 kHz

Maximum Pixel Clock

DDC 1/2B

Connector

Format

Level/Impedance

DDC 1/2B

Sync H/V separate

Frequency Fh = 31~80 kHz

Maximum Pixel Clock

Connector

DVI 1.0

0.5~3.0Vp-p/100 Ohm (Differential),50 Ohm (Single ending)

Single Link

Fv = 50~75 Hz

135 MHz

Compliant with Revision 1.0

HDMI x 1

Analog HD15 PC Signal (RGB)

R, G, B Analog

0.7Vp-p / 75Ω

Compliant with Revision 1.0

3V TTL level / 1kΩ

Fv = 50~75 Hz

135 Mhz

Mini D-Sub 15 pin (female) x 1

Video (Composite) CVBS Signal

Format

Level / Impedance

Format

Level / Impedance Y: 1.0Vp-p / 75Ω

Analog HD15 Video Signal (YPbPr/YCbCr)

Format

Level / Impedance Y: 1.0Vp-p / 75Ω

NTSC, NTSC4.43, PAL_M, PAL(B,G,H,D,N), SECAM

1.0Vp-p / 75Ω

S-Video (Y/C) Signal

Y, C

C: ± 286 mV/ 75Ω

Y, Pb, Pr or Y, Cb, Cr

Pb/Cb, Pr/Cr: 0.7 ± 0.035Vp-p / 75Ω

HDMI Mode

PRESET MODES

F. V

PRESET MODES

HDMI

640X480P

HDMI

720X480P

HDMI

1280X720P

HDMI

1280X720P

HDMI

1920X1080

59.941Hz 59.941Hz 50Hz 59.941Hz 59.941Hz 50Hz HDMI

640X480P

HDMI

720X480P

HDMI

1280X720P

HDMI

720X576P

HDMI

1920X1080

HDMI

1920X1080

F. V 60Hz 60Hz 60Hz 50Hz 60Hz

RGB PC Timin

STANDARD RESOLUTION

V FREQ

H FREQ

kHz

CLK

MHz

VGA 640x480 60 31.47 25.16

VGA 640x480 75 37.5 31.5

SVGA 800x600 60 37.88 40

SVGA 800x600 75 46.9 49.5

XGA 1024x768 60 48.36 65.0

XGA 1024x768 75 60.02 78.75

SXGA 1280x1024 60 64 108

SXGA 1280x1024 75 80 135

MAC 640x480 67 35 30.24

Video & S-Video AV Timing

STANDARD RESOLUTION

V FREQ

H FREQ

kHz

CLK

MHz

NTSC 525 60 15.734 12.65

PAL(B,G,H,D,I) 625 50 15.625 14.50

SECAM 625 50 15.625 14.50

NTSC4.43 525 60 15.734 12.65

PAL-M 525 60 15.734 12.65

PAL-N 625 50 15.625 14.50

HDTV (SDTV) Mode

PRESET MODES

F. V

PRESET MODES

SDTV

480

SDTV

576I

SDTV

480P

SDTV

576P

HDTV

720P

HDTV

720P

60Hz 50Hz 60Hz 50Hz 50Hz 60Hz 50Hz

HDTV

1080I

HDTV 1080

F. V 60Hz

Power Source

AC100 – 240 V, 60/50 Hz

Sound Output Signal Connector Pin Assignment

10W X2, 4 Ohm.

Pin Assignment Pin Assignment Pin Assignment

1. Red 6. Red Ground 11. Ground

2. Green 7. Green Gro und 12. SDA

3. Blue 8. Blue Ground 13. Horizontal Sync.

4. Ground 9. Not Connected 14. Vertical Sync.

5. Self Test 10. Sync. Ground 15. SCL

3. Front Panel Function Control Description

Operation, Adjust and Programming

The operation of each OSD controls is described as following table:

Main Menu Sub Menu Option Adjustment

Audio System1Press e/f to select the audio system to be I,DK,L or BG Auto

Programme

Manual Search

Auto Search Press e/f to search program automatically Program No Press e/f to display the current program No. Audio System Press e/f to select the audio system to be I,DK,L or BG Channel Type Press e/f to select the Channel type to be V,UHF or

Channel No. Press e/f to display the prior storage information on the

Manual Search Press e/f to search channel manually Fine Tune Press e/f to fine tune the current programme No. Name To edit the channel name

Color System Press e/f to select the color system to be

Programme Edit Press e/f to edit the progamme Favourite Programme Set the favorite program Picture Mode Press e/f to select the Video mode to be Dynamic,

Black Extend Press e/f to select the Black Extend to be On or Off Color Temp. Press e/f to adjust the Color Temperature to be Cool,

Color Adjust Press e/f to adjust the Fleshone,Greentone and Bluetone

Contrast Brightness

Cable.

Tune

Auto,PAL,SECAM,PAL60,NTSC or N443

Standard, Mild, Game and User.

Normal, Warm, User. Red, Green, Blue

value Press e/f to adjust the Contrast from 0 to 100

Press e/f to adjust the Brightness from 0 to 100 Saturation Press e/f to adjust the Saturation from 0 to100 Sharpness Press e/f to adjust the Sharpness from 0 to 100 Hue Press e/f to adjust the Hue from 0 to 100(Only for NTSC) VOLUME Press e/f to adjust the Volume from 0 to 100 Sound Mode Press e/f to select the Sound mode to be Flat, Music,

Movie, Speech or User Surround Press e/f to select the Surround to be On or OFF Balance Press e/f to adjust the balance from 0 to 100

100Hz Press e/f to adjust the 100Hz from 0 to100 500Hz Press e/f to adjust 500Hz from 0 to 100

1.5KHz Press e/f to adjust 1.5KHz from 0 to 100 5KHz Press e/f to adjust 5KHz from 0 to 100 10KHz Press e/f to adjust 10KHz from 0 to 100 Clock Press e/f to adjust the current time Turn Off Press e/f to set the off time

Clock Press e/f to adjust the current time

Turn Off Press e/f to set the off time

Language OSD Time out Press e/f to select the OSD Timeout to be 15,20, 25, 30,

Turn On Press e/f to set the on time.

Blue Screen Press e/f to set the Blue Screen to be On or Off

Press e/f to select the language to be English, French,

German, Portuguese, Spanish, Polish, Italian or Dutch

40sec.

Keypad Lock Press e/f to select the Keypad Lock to be On or Off. Transparent Press e/f to select the transparent to be On or Off OSD Reset To return to the factory default Auto Config. Press e/f to set the auto config. Manual Config. Press e/f to enter into the option, use the to adjust the

Phase, Clock, H-Position and V-Position Display Mode Press e/f to select the display mode to be Spectacle, Full,

Original, 4:3, 16:9, 14:9 and Zoom. Zoom In/Out Set the current image to zoom in /out

Position Press e/f to set the image position on TV screen Cinema Press e/f to select the Cinema to be On or Off Noise Reduce Press e/f to set the 3D Noise reduce value Reset To recall to the factory default Input Press e/f to select the Source to be

TV,AV1(Scart1),AV2(Scart2),AV3(CVBS),AV4(S-Video),

AV5(YPbPr1),AV6(YPbPr2),AV7(VGA) or AV8(HDMI) Double Window Press e/f to select the Double window to be

DW1,DW2,OFF PIP Press e/f to select the PIP to be On or OFF

PIP Input Press e/f to select the PIP source to be

TV,AV1(Scart1),AV2(Scart2),AV3(CVBS),AV4(S-Video),

AV5(YPbPr1),AV6(YPbPr2),AV7(VGA), AV8(HDMI) Win.Size Press e/f to adjust the window size

Win. Position Press e/f to adjust the window position (only TV)

+ 38 hidden pages

BBK LT3209S, LT4005S Schematic

TABLE OF CONTENTS

2. Specification

F. V

HDMI

HDMI

HDMI

Video & S-Video AV Timing

F. V

HDTV

HDTV

Power Source

AC100 – 240 V, 60/50 Hz

Pin Assignment Pin Assignment Pin Assignment

1. Red 6. Red Ground 11. Ground

2. Green 7. Green Gro und 12. SDA

3. Blue 8. Blue Ground 13. Horizontal Sync.

5. Self Test 10. Sync. Ground 15. SCL

3. Front Panel Function Control Description