BGH BT2909S Schematic

MANUAL DE SERVICE

BT2909S (29M63)

CHASIS NX-56 VERSION G

BT2909S

Cod. P.T. PNE040084

Serie DCD5 EW0

Tamaño de pantalla

Tensión de alimentación 110 – 240 VCA

(W)

Entradas

Dimensiones

(en milímetros)

Peso neto 43 Kg

Sintonizador PAL-N/M, NTSC,

Total: 29” (74 cm)

Visible: 27” (68 cm)

Máximo: 105Consumo Stand by: <3

2xAV, YPbPr, S-Video

Alto: 631,0

Ancho: 850,0

Prof.: 435,0

Indice

Precauciones .......................................................................................... 3

Especificaciones ...................................................................................... 7

Menú de service ...................................................................................... 11

Diagrama en bloques .............................................................................. 20

Funcionamiento general ....................................................................... 21

Placas de circuito impreso....................................................................... 28

Circuitos esquemáticos ........................................................................... 35

Listado de componentes ........................................................................... 42

Hojas de datos ........................................................................................ 47

Vista explotada ........................................................................................ 68

Notas

Antes de salir del menu de service, se debe llevar el valor FACTORY HOTKEY, del menu 4, a 0. Despues de esto se debe apagar el televisor, volver a encenderlo y presionar el boton Menu para verificar que se accede al menu de usuario.

CAUTION:

1、

Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION: TO REDUCE THE RISK OF

CAUTION

RISK RISK OF OF ELECTRIELECTRICC

SHOCK SHOCK DO DO NOT NOT OPEN.OPEN.

The lighting flash with arrowhead symbol, with an equilateral triangle is intended to alert the user to the presence of uninsulated voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to the person.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

dangerous

WARNING: TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT

EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION:

Read all of these instructions. Save these instructions for later use . Follow all Warnings and Instructions marked on the audio equipment.

1. Read Instructions- All the safety and operating instructions should be read before the product is operated.

2. Retain Instructions- The safety and operating instructions should be retained for future reference.

3. Heed Warnings- All warnings on the product and in the operating instructions should be adhered to.

4. Follow Instructions- All operating and use instructions should be followed.

FOR YOUR PERSONAL SAFETY

1. When the power cord or plug is damaged or frayed, unplug this television set from the wall outlet and refer servicing to qualified service personnel.

2. Do not overload wall outlets and extension cords as this can result in fire or electric shock.

3. Do not allow anything to rest on or roll over the power cord, and do not place the TV where power cord is subject to traffic or abuse. This may result in a shock or fire hazard.

4. Do not attempt to service this television set yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

5. Never push objects of any kind into this television set through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the television set.

6. If the television set has been dropped or the cabinet has been damaged, unplug this television set from the wall outlet and refer servicing to qualified service personnel.

7. If liquid has been spilled into the television set, unplug this television set from the wall outlet and refer servicing to qualified service personnel.

8. Do not subject your television set to impact of any kind. Be particularly careful not to damage the picture tube surface.

9. Unplug this television set from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.

10.1. Do not place this television set on an unstable cart, stand, or table. The television set may fall, causing serious injury to a child or an adult, and serious damage to the appliance. Use only with a cart or stand recommended by the manufacturer, or sold with the television set. Wall or shelf mounting should follow the manufacturer s instructions, and should use a mounting kit approved by the manufacturer.

10.2. An appliance and car t combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.

PROTECTION AND LOCATION OF YOUR SET

11. Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a

wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall outlet and refer servicing to qualified service personnel.

12. Choose a place where light (artificial or sunlight) does not shine directly on the screen.

13. Avoid dusty places, since piling up of dust inside TV chassis may cause failure of the set when high humidity persists.

14. The set has slots, or openings in the cabinet for ventilation purposes, to provide reliable operation of the receiver, to protect it from overheating. These openings must not be blocked or covered.

Never cover the slots or openings with cloth or other material. Never block the bottom ventilation slots of the set by placing it on a bed, sofa, rug, etc. Never place the set near or over a radiator or heat register. Never place the set in enclosure, unless proper ventilation is provided.

a built-in

PROTECTION AND LOCATION OF YOUR SET

15.1. If an outside antenna is connected to the television set, be sure the antenna system is grounded so as to provide some

protection against voltage surges and built up static charges, Section 810 of the National Electrical Code, NFPA No. 70-1975, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrode, and requirements for the grounding electrode.

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS

EXAMPLE OF ANTENNA GROUNDING AS PER

NATIONALELECTRICAL CODE

ANTENNA LEAD- INWIRE

GROUND CLAMP

ELECTRIC SERVICE

EQUIPMENT

NEC-NATIONALELECTRICAL CODE

ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)

GROUNDING CONDUCTORS (NECSECTION 810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250. PARTH)

15.2. Note to CATV system installer : (Only for the television set with CATV reception)

This reminder is provided to call the CATV system attention to Article 820-40 of the NEC that provides

installer s guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

16. An outside antenna system should not be located in the vicinity of overhead power lines or other electric lights or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal.

17. For added protection for this television set during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna. This will prevent damage due to lightning and power-line surges.

OPERATION OF YOUR SET

18.

This television set should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from battery power, refer to the operating instructions.

19. If the television set does not operate normally by following the operating instructions, unplug this television set from the wall outlet and refer servicing to qualified service personnel. Adjust only those controls that are covered in the operating instructions as improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the television set to normal operation.

20. When going on a holiday : If your television set is to remain unused for a period of time, for instance, when you go on a holiday, turn the television set and unplug the television set from the wall outlet.

off

IF THE SET DOES NOT OPERATE PROPERLY

21. If you are unable to restore normal operation by following the detailed procedure in your operating instructions, do not attempt any further adjustment. Unplug the set and call your dealer or service technician.

22. Whenever the television set is damaged or fails, or a distinct change in performance indicates a need for service, unplug the set and have it checked by a professional service technician.

23. It is normal for some TV sets to make occasional snapping or popping sounds, particularly when being turned on or off. If the snapping or popping is continuous or frequent, unplug the set and consult your dealer or service technician.

FOR SERVICE AND MODIFICATION

24. Do not use attachments not recommended by the television set manufacturer as they may cause hazards.

25. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards.

26. Upon completion of any service or repairs to the television set, ask the service technician to perform routine safety checks to determine that the television is in safe operating condition.

TTE Corporation R D Center (Shen’Zhen Lab)

Model

Item

Master Data

-Version

-Customer ID

-Destination

-Brand

-BOM NO.

-Chassis

Reception

-Tuning [Channels Amt.]

-Tuning [Technology]

-Tuning [Indication]

-Frequency Bands

-IF Frequency

-TV Systems (Color+ Sound)

-AV Systems

Picture-Processing

-SCAN

-Wide Screen Switching

-Comb filter

-Picture Enhancement LTI / CTI Black Stretch

Dynamic Skin Others

-Picture Control [General] Brightness

Sharpness Contrast Tint Color

-Picture Control [Special] Smart Pictures * modes

VM Color Temperature

Others

-Picture Noise Reduction

Picture – Display

-CRT Type Normal Flat Pure Flat Super Flat

-Deflection system 1Fh

2Fh

-Tube Technology Iron AK

Black Matrix Others

-CRT Deflection ( * Deg.)

-CRT Magnetic Field

-Screen Type

-Screen Size / Vis. Size

Sound

-Audio Power Consumption

-Surround Sound

03-B185SAE-SC31 03-DM63SAE-SC31S

Antenna AND Cable Antenna AND Cable

PAL M/N NTSC M PAL M/N NTSC M

NTSC PAL NTSC PAL

NX56-LA

29185

NX56-LA

21M63US

11 EM EM EM EM

181 181 PLL PLL

Channel Channel

45.7MHz 45.7MHz

Standard Standard

4 modes 4 modes

3 modes 3 modes

110 120

4:3 4:3

29' 21' Super Slim

5W+5W 4W+4W

Chassis: NX56-LA

Version: 1.0

TTE Corporation R D Center (Shen’Zhen Lab)

Model

Item

-Nicam

-America Stereo (MTS,BTSC,MPS)

-America SAP

-Korea Stereo

-Thai Bilingual

-Super Woofer

-AVL

-Sound Control [General] Volume Mute

-Sound Control [Special] Treble

Bass Balance Equalizer

Smart Sound * modes Others

-Speakers Quantity

User Interface

-Menu Language

-Features [General] AT

Biological Clock Calendar Clock Channel Swap Channel Naming Child Lock Favorite Channel Game Hotel Mode High Sensitive Notebook On/Off Timer Preset Recall Rotation Sleep AVC

-Features [Special] V-chip / CCD

Teletext *Pages Others New Features Smart signal Voltage display

环境光检测 Easy search

English/Portugal/Espanol English/Portugal/Espanol

NX56-LA

29185

NX56-LA

21M63US

2X1 2X1

Tuning Features

-Auto Channel Program

-Auto/Manual Tuning

-Auto/Manual Store

-Fine Tuning

-Factory Mode

-Service Mode

Cabinet

-Cabinet Name

Chassis: NX56-LA

Version: 1.0

TTE Corporation R D Center (Shen’Zhen Lab)

Model

Item

-Front Cabinet Color

-Middle Cabinet Color

-Rear Cabinet Color

-Local Controls Front Mains Switch

CH+ CH- VOL+ VOL TV/AV Menu Auto Search

-Local Controls Top CH+ CH- VOL+ VOL TV/AV Menu Auto Search

-Indicator RC Received LED

Standby LED

NX56-LA

29185

NX56-LA

21M63US

Remote Controller

-Type

-Batteries

Connectors Rear

-SCART Full w/o Y/C

-SCART Full with Y/C

-SCART Single (CVBS)

-Component In (YPbPr) Cinch for 50Hz

-In Y/C+Cinch(CVBS+ Stereo)

-In Y/C+Cinch (CVBS+ Mono)

-In Cinch(CVBS+ Stereo)

-In Cinch (CVBS+ Mono)

-Out Cinch(CVBS+ Stereo)

-Out Cinch(CVBS+ Mono)

- Y,Cb,Cr input

-Super Woofer

-Digital Audio Out

-Loudspeakers

-Control Busses

-Feature Slot

-ITV Smart Port

- Antenna in 75 Ohms (F Type)

Connectors Front/Side

-In Y/C+Cinch(CVBS+ Stereo)

-In Y/C+Cinch (CVBS+ Mono)

-In Cinch(CVBS+ Stereo)

-In Cinch (CVBS+ Mono)

-Out Headphone Mini-Jack 3.5mm

Final Equipment

-Packing –Methods 2 Color Printing Carton Color

-Documents and Manuals Instruction Book Screen Sticker Plastic Bag Warranty Card

RC166 RC166

1 + 1 1 + 2

1(follow TV) 1(follow TV)

Chassis: NX56-LA

Version: 1.0

TTE Corporation R D Center (Shen’Zhen Lab)

Model

Item

Guarantee Doc. Warning Label Approbation Label Others

-Languages DFU

-Indication on BACKOVER Made-in in family sheet FCC/Elect Shock Caution Label CE/Elect Shock Caution Label Warning Label Others

Approbation

Miscellaneous

-Mains Voltage

-Mains Frequency

-Type Mains Cord

-Power Consumption TV in ON

-Power Consumption TV in Standby

100-240V 100-240V

NX56-LA

29185

NX56-LA

21M63US

IEC65 IEC65

50/60Hz 50/60Hz

75W 75W

<3W <3W

Chassis: NX56-LA

Version: 1.0

1.1. The way to enter P-Mode

a) Method one

A) Switch on the TV set.

B) Press the “MENU” key on RC to show the “PICTURE” OSD menu.

C) Move the cursor to “Contrast” item then press the “9”, “7”, “3”, “5” key

continuously on RC within 3 seconds then enter P-Mode. The “P” letter will

appear on the left low corner of the screen when enter P-Mode. Also the

“FACTORY HOTKEY” will be set to “ON ( = 1 )”.

b) Another method

Press the “RECALL” key on RC to enter P-mode directly.

*Notes:

1. This will be active only when the “FACTORY HOTKEY” had set to “ON ( = 1 )”.

2. When the power on with “FACTORY HOTKEY” had set to “ON ( = 1 )”, the set

will enter the P-Mode automatically.

1.2. Exit the P-Mode

Press the “RECALL” or “MENU” key on RC to exit the P-Mode.

1.3. Keys’ function on RC at the P-Mode

Use the RC to navigate in P-Mode:

Press “0” to “9” key to select factory adjustment page. Press “▲▼” key to select option. Press “►◄” key to adjust or select option. Press “DISPLAY” key to display software version. Press “MENU” key to exit the P-Mode. Press “RECALL” key to enter or exit the P-Mode.

All change in P-Mode will be saved in EEPROM automatically

1.4. The adjustment page list on P-Mode:

RC key Item Description

0 Screen voltage adjustment

1 Picture Geometric adjustment 1 Vertical geometry

2 Picture Geometric adjustment 2 Horizontal geometry

3 White Balance Adjustment

4 Setup 1

5 Setup 2

6 Setup 3

7 Setup 4

8 Setup 5

9 I2C Bus OFF

DISPLAY Display software version

Press this key to enter or exit BUS

OFF mode

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 4 of 12

1.0

2. Flowchart of alignment procedure

B+ adjustment Electrical

properties

checking for

chassis

Parameter setup White balance

Adjustment

Aging

Adjustment of

focus voltage

PAL geometry

adjustment

NTSC

geometry

Set shopping

status

QC checking

adjustment

1) B+ Adjustment

2) RF AGC Adjustment

3) Screen & Focus adjustment

RF AGC

adjustment

Adjustment of

screen voltaget

4) White balance adjustment

5) Producing parameter setup and option

6) Picture Geometry adjustment ( Vertical first)

7) Set Shopping status

8) QC

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 5 of 12

1.0

3. Adjustment description

*Notes: Alignment should be done after 3 minutes warm up of TV.

3.1 B+ Voltages

1. All relevant connectors and modules must be connected and inserted.

2. Main voltage is at 220VAC, 50Hz.（voltage range:110VAC~240VAC,50Hz）

3. Connect a voltmeter to B+ (Cathode of D808) and switch on the set.

4. Input Philips test pattern signal and standard mode.

5. Adjust VR801, it should as the value in below form B+ Voltage.

Table 3.1.1: The B+ value for vary tubes

CRT type (Part Number) B+ Voltage

A68ERF185X013/MS (44-29RFLT-HFCA) 125V+/-0.5V

A51QGT420X34(44-21RFLS-LGDA) 108V+/-0.5V

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 6 of 12

1.0

3.2 RF AGC alignment

3.2.1 Method 1

A. Connect the detector as shown below (Picture 3.2) to collector of Q101.

B. Receive a grey scale signal with 70dBμV amplitude.

C. Enter P-Mode, press “6” key on RC to select “AGCT”.

D. Adjust AGCT item until the output of the detector becomes 0.8Vpp

Collector

101

Picture 3.2

3.2.2 Method 2

A. Receive a grey scale signal with 60dBμV amplitude.

B. Enter P-Mode, press “6” key on RC to select “AGCT”.

C. Adjust the “AGCT” value until the hint display “AGC” just change between “0” and “1”.

3.3 Screen & Focus adjustment

*Notes: Alignment below should be done after 15 minutes warm up of TV.

1. Input cross hatch pattern signal to RF input.

2. Enter P-Mode.

2. Press “0” key on the RC and the screen will become a horizontal line.

3. Adjust the “SCREEN” VR of the FBT until the horizontal line can just be seen barely

(minimum visible intensity).

4. Press “0” key again on the RC to exit the screen voltage adjustment mode.

5. Adjust the “FCOUS” VR of the FBT until the vertical line and horizontal line becomes

clear, like picture 3.3.

Picture 3.3

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 7 of 12

1.0

3.4 White Balance Adjustment

1. Input a black and white pattern to RF input.

2. Enter P-Mode, press key “3 ” to select white balance adjustment menu.

3. Use the color analyzer to measure the black side of the screen. Adjust the value of

“RC”,”GC” and “BC” to set the reading of the color analyzer to x=274, y=280. (11500 K).

4. Then measure the white side of the screen. Adjust the value of “RD”, “GD” and “BD” to

set the reading of the color analyzer to x=274, y=280. (11500 K).

5. Repeat step 3&4 until you can get the correct reading for both black and white sides.

*Notes:

A. The “SUBB” and “SubCON” items are used to assistant the white balance adjustment.

It is the same function as the user OSD menu “Brightness” and “Contrast” items. You can

adjust these items to get the expect intensity when adjusting the white balance.

B. YUV white balance black level offset setup:

It is not need to adjust the white balance for YUV mode when production, but the

BLOR-Y, BLOG-Y and BLOB-Y items which locate in EEPROM address 0x0A, 0x0B and

0x0C need to write in the right values to set the YUV mode black level offset before

production. These offset values should be written by the PE engineer when making the

EEPROM copy for the new lot with difference tube.

Table 3.4.1: The White Balance adjustment OSD menu

OSD menu Default Value Description Remark

RC 32 R cut-off setting(BLOR) Adjust to right value

GC 32 G cut-off setting(BLOG) Adjust to right value

BC 32 B cut-off setting(BLOB) Adjust to right value

RD 37 R drive setting(WPR) Adjust to right value

GD 32 G drive setting(WPG) Adjust to right value

BD 37 B drive setting(WPB) Adjust to right value

BLOC 3 Black level offset course(BLOC) Recommended value= “8”

PWL 8 Peak White Limiting Don’t adjust, use default

BriVSD 32

Brightness of horizontal line when

adjust G2

Don’t adjust, use default

SUBB 32 Brightness

SubCON 32 Contrast

BRTC 31 Sub-Brightness Adjust to right value

BLOR-Y 64 YUV R -OFFSET

BLOG-Y 62 YUV G-OFFSET

BLOB-Y 64 YUV B -OFFSET

Same as user “Brightness”

and “Contrast” adjust

64= offset value 0 63= offset

value -1 65= offset value

＋1 Adjust to right value

3.5 Picture Geometry adjustment

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 8 of 12

1.0

3.5.1 Vertical geometry adjustment

1. Input a PAL crosshatch pattern signal to RF input.

2. Enter P-Mode, press key “1” to select vertical geometry adjustment. (The OSD menu

for this adjustment as below table 3.5.1. For NTSC signal, the “-50” will replace with “-60”.)

3. Adjust the value of the corresponding item to make the vertical geometry of the

pattern look good.

4. Apply NTSC signal to adjust these value for NTSC vertical geometry.

Table 3.5.1: The vertical geometry adjustment OSD menu

OSD menu Default Value Description Remark

VSLOPE-50 32 Vertical slope(VS) Adjust to right value

VCEN-50 32 Vertical shift (VSH) Adjust to right value

VSIZE-50 32 Vertical amplitude(VA) Adjust to right value

VZOOM-50 25 Vertical zoom(VX) Adjust to right value

VSC-50 32 S-correction(SC) Adjust to right value

VSCROLL-50 32

Vertical Scroll（VCS）

Adjust to right value

*Notes:

1. For NTSC signal, the “-50” will replace with “-60”.

2. For NTSC signal, only the “VCEN-60” and “VSIZE-60” items need the adjustment,

the other items use the same data as PAL signal.

3. On producing, please use the “AUTO OFFSET” (On page “2”) function to easy the

geometry adjustment of NTSC signal. When finished the PAL signal geometry adjustment,

press “2” key to enter page “2” to select “AUTO OFFSET” item, press “y” key to active the

automatic offset function. Then the geometry adjustment of NTSC signal will finish

automated. If the geometry of NTSC signal is look good, you don’t need to adjust the

geometry of NTSC signal any more.

3.5.2 Horizontal geometry adjustment

1. Input a PAL crosshatch pattern signal to RF input.

2. Enter P-Mode, press key “2” to select horizontal geometry adjustment. (The OSD

menu for this adjustment as below table 3.5.2. For NTSC signal, the “-50” will replace with

“-60”.)

3. Adjust the value of the corresponding item to make the horizontal geometry of the

pattern look good.

4. Apply NTSC signal to adjust these value for NTSC horizontal geometry.

Table 3.5.2: The horizontal geometry adjustment OSD menu OSD menu Default Value Description Remark

HCEN-50 32 Horizontal shift(HSH) Adjust to right value

HSIZE-50 32 EW width(EWW) Adjust to right value

HPARA-50 32 EW parabola width(PW) Adjust to right value

HTRAP-50 32 EW trapezium(TC) Adjust to right value

HCNRT-50 32 EW upper corner parabola(UCP) Adjust to right value

HCNRB-50 32 EW lower corner parabola(LCP) Adjust to right value

HBOW-50 32 Horizontal bow(HB) Adjust to right value

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 9 of 12

1.0

HPARALLEL 32 Horizontal parallelogram(HP) Adjust to right value

AUTO OFFSET 0 Automatic offset NTSC geometry See below description

*Notes:

1. For NTSC signal, the “-50” will replace with “-60”.

2. For NTSC signal, only the “HCEN-60” and “HSIZE-60” items need the adjustment,

the other items use the same data as PAL signal.

3. On producing, please use the “AUTO OFFSET” (On page “2”) function to easy the

geometry adjustment of NTSC signal. When finished the PAL signal geometry adjustment,

press “2” key to enter page “2” to select “AUTO OFFSET” item, press “y” key to active the

automatic offset function. Then the geometry adjustment of NTSC signal will finish

automated. If now the geometry of NTSC signal is look good, it not needed to adjust the

geometry of NTSC signal any more.

3.6 Producing parameter setup and option

1. Enter P-Mode, press key “4” to select page “4”.Set the corresponding item to require

value. See below table 3.6.1 for detailed description.

Table 3.6.1: Producing parameter setup and option page “4”

OSD menu Default Value Description Remark

WARM UP STATUS 0 Set aging mode

SHOP INIT 0 Set the shopping status 0=>1= Set the shopping status

DCXO 2

Crystal oscillator

frequency adjustment

Adjust this value to get the max

FACTORY HOTKEY 1 Set factory hotkey

POWER ON MODE LAST Set the power on mode

EEPROM INIT 0 EEPROM initial 0=>1=Active EEPROM initial

0=Aging mode off

1=Aging mode on

color synchronization range

0=”FACTORY HOTKEY” off

1=”FACTORY HOTKEY” on

ON=On when power on

STB=Standby when power on

LAST=Last power off status

2. Enter P-Mode, press key “5” to select page “5”. Set the corresponding item to require

value. See below table 3.6.2 for detailed description.

Table 3.6.2: Producing parameter setup and option page “5”

OSD menu Default Value Description Remark

Track. Mode 1 EHT tracking mode

0=EHT tracking only on vertical

1=EHT tracking on vertical and EW

VX Normal 25 4:3 mode vertical zoom Don’t adjust, use default

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 10 of 12

1.0

VX Compr. 0 16:9 mode vertical zoom Don’t adjust, use default

WBF 5 Wide blanking start Don’t adjust, use default

WBR 8 Wide blanking end Don’t adjust, use default

GET OFFSET 0 Get offset See below description

ColdRD 60

Cold color temperature R

ColdGD 59

and G drive offset

64= offset value 0 63= offset value

-1 65= offset value ＋1 Adjust to

right value

WarmRD 74

Warm color temperature R

WarmGD 71

and G drive offset

64= offset value 0 63= offset value

-1 65= offset value ＋1 Adjust to

right value

Description for AUTO OFFSET and GET OFFSET:

The “GET OFFSET” can use to make the EEPROM copy by PE engineer. When the

PAL and NTSC geometry adjustment had finished, trigger the “GET OFFSET” from “0” to

“1” to store the geometry offset datum between PAL and NTSC in EEPROM.

On producing, these geometry offset datum can use to easy the NTSC geometry

adjustment. When finished the PAL geometry adjustment, trigger the “AUTO OFFSET”

from “0” to “1”, then the geometry adjustment of NTSC signal will finish automated. If now

the geometry of NTSC signal is look good, it not needed to adjust the geometry of NTSC

signal any more.

3. Enter P-Mode, press key “6” to select page “6”. Set the corresponding item to require

value. See below table 3.6.3 for detailed description.

Table 3.6.3: Producing parameter setup and option page “6”

OSD menu Default Value Description Remark

AGCT 32 AGC take over point

AGC 0 AGC take over point indicate

See section “3.2 RF AGC alignment”

for detailed.

OIF 32 IF demodulator offset Don’t adjust, use default

IF 45.7 IF frequency Select the IF frequency

AGCS 1 AGC speed Don’t adjust, use default

AGNE 3 Audio gain Don’t adjust, use default

4. Enter P-Mode, press key “7” to select page “7”. Set the corresponding item to require

value. See below table 3.6.4 for detailed description.

Table 3.6.4: Producing parameter setup and option page “7”

OSD menu Default Value Description Remark

EVG 0 Enable vertical guard(RGB blanking) 1= RGB blanking

DFL 0 Disable flash protection from defletion timer Don’t adjust, use default

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 11 of 12

1.0

XDT 0 X-ray detection

Don’t adjust, use default

AKB 1 Black current stabilization Don’t adjust, use default

NBL 1 Black current loop application Don’t adjust, use default

OSVE 0

Black current measuring lines in over

scan(for vertical zoom setting <1)

Don’t adjust, use default

CL 8 Set the cathode drive level Don’t adjust, use default

CC-LINE 21 CC’s line

HSYNC

DELAY

2 CC’s position

Don’t adjust

5. Enter P-Mode, press key “8” to select page “8”. Set the corresponding item to require

value. See below table 3.6.5 for detailed description.

Table 3.6.5: Producing parameter setup and option page “8”

OSD menu Default Value Description Remark

BTSC 1 BTSC’s option 1: open

AV ALIGMENT 1 AV terminal align

SHVS ENABLE 1 S-Video terminal enable

YUV ENABLE 1 YUV terminal enable

NO COMMAND ENABLE 1

No operation within 2 hours

automatic standby enable

LANGUAGE2 1

LANGUAGE3 1

Note:

The “HEALTH FLAT” and “AC DISPLAY” options are valid only on model NX56-AP1

(example 29A41). The “LANGUAGE4” and “PIC PRESET” options are valid only on model

NX56-AP2 (example 21E26).

0:close

0=3 x 3

1=4 x 3

0=Disable

1=Enable

Chassis Name Issued on Updated on

NX56-LA

2008-05-19

Serial No. Page Version

Page 12 of 12

1.0

Chapter II Block Diagram of NX56 July5,2008

Bridge

220VAC

INPUT

Rectifier

DB801-

▽ Antenna

Tuner TU101

SCA/SDL

P901

TV/AV/SV

DB804

IF AMP

Q101

EEPROM

IC001

Power

Transistor

Q801

2SK2996

IC801

NCP1337

SAW Z2O1

Transformer

Photo-Coupler

UOC IC201

T801

IC803

Pin44-46

pin21

B 33V

+-14V

12V

P201

Pin14/15

VDA/B

Pin 56 H.OUT

R/G/B

Q501 Q503 Q505

AMP

V.AMP.

IC301

STV8172A

H.Driver AMP Q401

Q402

B+

CRT

FBT T401

200V

24V

P202

KEY &IR001

SENSOR

IC701 AN5832SA

Aout -L/R

IC702 74HC4053

Audio

AMP.

IC601

TDA7266SA

speakerX2

+ 48 hidden pages