Quadro CTV-72SF65 TXT User manual

MODEL: CTV-63N11 TXT

CTV-72D11 TXT

CTV-72SF65 TXT

CTV-72SF50 TXT

SERVICE MANUAL

Brown goods

TV SETS 25", 29" 5P19 chassis

Note

-2-

Note-----------------------------------------------------------------

Technical specification--------------------------------------------

Chassis Block Diagram--------------------------------------------

IC Block Diagram ---------------------------------------------------

Transistor mark ----------------------------------------------------

PCB Top/Bottom layer ---------------------------------------------

Service Adjustments -----------------------------------------------

Control Location ----------------------------------------------------

Input and Output Terminal-----------------------------------------27-30

Operation Instructions---------------------------------------------

Circuit Diagram-----------------------------------------------------

2

3-6

7

8-10

11

12-13

14-25

26

31-43

44

Technical Specification

-3-

SUPPLY VOLTAGE : AC 90-260V 50/60Hz

1.SYSTEM PAL / SECAM / NTSC

2.CHANNELS RECEIVED 0~199

3.SCANNING HORIZONTAL 15625Hz

VERTICAL 50Hz

4.VISION INTERMEDIATE FREQUENCY 38.9 MHz

5.SOUND INTERMEDIATE FREQUENCY 33.4 MHz B/G

6.INTER-CARRIER FREQUENCY 5.5/6.0/6.5/4.5 MHz

7.CHROMA IF FREQUENCY PAL 34.47 MHz

8.ANTENNA INPUT IMPEDANCE 75 OHM

9.CRT 29 RF/SLIM

10.VIDEO SENSITIVITY AT 30dB S/N (ACCORDING TO CCEE)

VHF 48 48 dBuV

UHF 51 51 dBuV

(50% WHITE, 1KHz-50Hz, UNWEIGHTED, SC TRAPPED)

11.FM SOUND SENSITIVITY AT 30dB S/N 25 38 dBuV

12.SYNCHRONIZING SENSITIVITY 22 26 dBuV

13.AGC CHARACTERISTIC 65 60 dB

14.SELECTIVITY 35 30 dB

15.I.F. REJECTION 50 45 dB

16.IMAGE REJECTION 50 45 dB

17.AUDIO OUTPUT POWER 1khz 6 or 10 W

(10% THD)

18.MAXIMUM OUTPUT POWER 12 W

19.THD SUPPLYING 1KHz 500mW 0.3 0.5 %

TO SPKR

20.MINIMUM VOLUME HUM 5 10 mVrms

（）

”

＜

NORMAL LIMIT UNIT

21.MAX. BRIGHTNESS 100% WHITE, 80 cd/m

CONTROLS MAX

22.H SYNC. PULL IN 400 -400 Hz

23.V.SYNC. PULL IN +5 -6 45-64 Hz

24.OVERSCAN 94 88-96 %

25.COLOUR SENSITIVITY 35 dBuV

26.LINEARITY PAL HORIZONTAL 7/8 10/12 %

VERTICAL 3/5 8/15 %

27.RESOLUTION HORIZONTAL 330 300 LINES

VERTICAL 450 LINES

28.PICTURE POSITION HORIZONTAL -5 +5 -5 +5 mm

VERTICAL -4 +4 -6 +6 mm

29.CONVERGENCE C 0.4 mm

T, B, R, L 1.6 mm

TR,TL,BR,BL 2.0 mm

2

，

100

+700 -600

26

500

0.3

1.0

1.6

，

Technical Specification

-4-

30.WHITE BALANCE(9300 K, LOW BRI <10cd/m , HI BRI >80cd/m )

(SET BURST OFF OF PATTERN GENERATOR OR SET COLOUR SAT. TO MIN

MEASURED BY MINOLTA CA-100)

0.260 x:0.288 0.015

0.302 y:0.298 0.015

31.HIGH VOLTAGE (decided by CRT Spec. ) 29 31 KV

32.X-RAY RADIATION 0.2 0.2 MR/HR

33.REMOTE CONTROL RECEPTION 6 5 m

(30 DEGREES)

34.VIDEO INPUT (AV ) 1 0.9-1.1 Vp-p

35.AUDIO OUTPUT(AV-OUT) 0.55 0.5(-0.1+0.3)Vrms

36.COLOUR LEVEL 90 80 %

(RED CATHODE, STANDARD PICTURE MODE, COLOUR BAR TEST PATTERN)

37.POWER CONSUMPTION 90 120 W

38.STANDBY POWER CONSUMPTION 2 3 W

(AT 220V AC)

39.FREQUENCY RESPONSE

(1 KHz = 0dB, REF : 1.0V) 100Hz +1.5~+8.9 +3, -6 dB (TBC)

10KHz -0.9~-20 +3, -6 dB

o22

40.DIELECTRIC STRENGTH TEST -- 6 mArms

(3 KV Vrms 2SEC)

41.OPERATING WORKING VOLTAGE RANGE 82-264 84-260V

42.AFC PULL IN RANGE +2.2, -1.75 +1 -0.75 MHz

43.TV/AV CROSSTALK (REF : 2W) 40 dB

(WEIGHTED DIN NOISE)

44.PICTURE MODE

STANDARD: Half Contrast, Half Bright.

SOFT: 1/3CONTRAST, 1/3 Bright.

RICH: MAX Contrast, Half Bright.

USER: PERSONAL PREFERENCE.

45

TL T TR

LC R

BL B BR

320mm

240mm

TEST CONDITIONS :

TEMPERATURE : 23 C 5 C

HUMIDITY : 50% +/-20

OPERATING VOLTAGE : AC220 50Hz Vrms 5V

PICTURE MODULATION DEPTH : 87.5%

SOUND MODULATION DEPTH : 100%

PICTURE TO SOUND RATIO : 10dB

VIDEO REFERENCE OUTPUT AT RED GUN : 25 Vp-p

AUDIO REFERENCE OUTPUT AT SPEAKER:1W

ANTENNA INPUT IMPEDANCE : 75 OHM UNBALANCED

WHITE BALANCE CHECKED BY MINOLTA CA-100

oo

OPERATION ON AC90-260V 50/60Hz MAIN SUPPLY

SYSTEM: PAL SECAM BG/DK/I NTSC-M

200 PROGRAMMES MEMORY

FULL ON SCREEN DISPLAY

BLUE SCREEN DISPLAY

180 MINUTES SLEEP TIMER

FULL AUTO PROGRAM

REAR YUV L+R/AV IN /AV OUT OR FULL SCART/HALF SCART

SIDE AV IN/S-VHS IN

BLACK LEVEL STRETCH

TIME SETTING

CHILD LOCK

FOUR PICTURE MODE: STANDARD RICH SOFT USER

TV SYSTEM : PAL SECAM BG/DK/I NTSC-M

RECIVE FRENQUENCY COVERAGE: 45.15MHz -863.25MHz

INTERMEDIATE FREQUENCIES

PICTURE I.F.: 38.9MHz

CHROMA SUBCARRIER: 34.47MHz/35.32MHz

MONO SOUND I.F.: FM33.4MHz/32.4MHz/32.9MHz/34.4MHz

4 ANRENNA IMPEDANCE: 75 OHM BALANCED

5 AV IN: 1 AV IN;YUV(YCbCr) IN SCART IN

6 AV IN SPECIFICATION:

Y:1.0 0.2Vp-p 75 OHM

C:0.3Vp-p 75 OHM

VIDEO IN 1.0 0.2Vp-p 75 OHM

AUDIO IN APPROX 500mv

7 TUNING SYSTEM: FREQUENCY SYNTHESISED WITH 200

PROGRAMMES MEMORY

8 POWER SOURCE: AC90-260V 50/60Hz

9 LED INDICATORS: POWER ON OR STANDBY

10 OSD LANGUAGE: ENGLISH

11 CONTROLS ON TV SET

(A) FRONT PANEL

- MAIN POWER SWITCH

- PROG+/- SOFT TOUCH

- VOL+/- SOFT TOUCH

- MENU SOFT TOUCH

- TV/AV SOFT TOUCH

-OPEN /CLOSE SOFT TOUCH

-STOP SOFT TOUCH

- PLAY SOFT TOUCH

(B)BACK PANEL

- YUV L+R/AV IN /AV OUT OR FULL SCART/HALF SCART

FEATURES:

GENERAL SPECIFICATION:

?

：

、

、；

、

1

2

3

Technical Specification

-5-

12 ANTENNA INPUT: 75 OHM AERIAL JACK

13 AV INPUT: RCA SOCKET

14 HAND SET POWER SUPPLY: BATTERY 3V(UM-3/R6/AAA) 2

15 HAND SET WEIGHT: 100g(APPROX.)

16 AUDIO OUTPUT: >6W or >10W (1KHz 0.5V , INPUT 10% THD)

17 SPEAKER: 8 OHM 15W/ 6OHM 15W

18 POWER CONSUMPTION: 120W

19 COLOUR PICTURE TUBE: RF/ SLIM

20 PACKING: 1SET PER 1 GIFTBOX

21 ACCESSORIES: OWNER S MANUAL IN ENGLISH WITH BRAND

NAME AND WITH MODE NO. REMOTE HANDSET

、

、＜

、

、'

、

≦

、0℃

、

22 DIELECTRIC STRENGTH TEST

(3KV rms 60 SEC) 6mA rms

23 OPERATING TEMPERATURE RANGE: BEST 10 TO 4

24 AC LINE CORD PLUG: VDE TYPE OR SUBJECT TO CUSTOMER REQUEST

25 SAFETY : IEC-60065

Technical Specification

-6-

Chassis Block Diagram

-7-

123456

A

B

C

D

6

5

4

3

2

1

D

C

B

A

TDA9384--India

SCART 1 SCART 2

Y

RGB

UV

Vin Vin

REAR AV SIDE AV S-VHS

CinAV in

ANTENNA

TUNER IF AMP SAW101

IF

NICAM-TDA9874

MTS-TDA9850

AV-SW HEF 4052

L

R

AV OUT

VLR

YCVLRR

L

V

LR

AMP-TDA9842/9843

L

R

TONE CONTROL

AUDIO

R

G

B

8V

24C08

W6556A

V-AMP TDA4863AJ

H-DRIVE

SPL

SPR

CRT BOARD

29" CRT

V--DY

H--DY

R OUT

G OUT

B OUT

SW

90V-260V

DEG COIL

POWER SUPPLY

SCL

SDA

PHILIPS UOC2

+135V FOR B+

+43V FOR H-drive

+12V FOR MAIN

+20V FOR AMP

5P19



side V

CVBS OUT

SLIM PART

TDA9363--AP\ME

Key Control

TDA9859

XULI

Tuner AGC

Video--SW HEF 4052

H-out

Va-out

Vb-out

SLIM OR RF

IC Block Diagram

-8-

IC601(POWER SUPPLY)STR-W6556A

IC760(2CHANNEL AUDIO AMPLIFIER WITH VOLUME CONTROL)TFA19842AJ

IC Block Diagram

-9-

IC740(UNIVERSALHI-FI AUDIO PROCESSOR FOR TV)TDA9859

IC Block Diagram

-10-

SOUND

TRAP

TUNERAGC

+8V

HOUT V-DRIVE

RO

GO

BO

BCLIN

BLKIN

CVBS3/Y

SIFIN

Fig. 1 Block diagram

C

SDA

SCL

VISION IF

PLL DEMOD.

AGC/AFC

VIDEO AMP.

VIDEO SWITCH

VIDEO IDENT.

VIDEO FILTERS

PAL/SECAM/NTSC

DECODER

DEEMPHASIS

AUDIO SWITCH

AVL

VOLUME CONTROL

BASE-BAND

DELAY LINE

H/V SYNC SEP.

H-OSC. + PLL

H-DRIVE

2

nd

LOOP

H-SHIFT

V-DRIVE +

CONTR/BRIGHTN

OSD/TEXT INSERT

CCC

WHITE-P. ADJ.

80C51 CPU

I

2

C-BUS

TRANSCEIVER

ROM/RAM

TELETEXT

ACQUISITION

1/10 PAGE

MEMORY

TELETEXT/OSD

DISPLAY

RG BBL

Y

U

V

H

V

REF

ENHANCED

VST PWM-DAC

VST OUT

I/O PORTS

I/O PORTS (4x)

+3.3 V

RESET

LED OUT (2x)

ADC IN (4x)

VPE

EW GEOMETRY

GEOMETRY

EHTO (EWD) R/V/P

R

G/Y

B/U/P

B

BL

RGB/YUV INSERT

RGB

REF

CVBS

SYNC

H

V

COR

SATURATION

LUMA DELAY

PEAKING

BLACK STRETCH

QSS SOUND IF

AGC

QSS MIXER

AM DEMODULATOR

SOUND PLL

CVBS2

VIFIN

CVBSO

QSSO/AMOUT

PWMS(4X)

WHITE STRETCH

BLUE STRETCH

AUDIO2

AUDIO3

GROUP DELAY

CORRECTION

AUDEEM

AVL

(SNDIF)

DVB MIXER

VMOUT

IFVO/DVBO

Y

TINT CONTROL

Ic101

Transistor Mark

-11-

Maion PCB Top Layer

-12-

Maion PCB Bottom Layer

-13-

Service Adjustments

-14-

1. FACTORY MODE:

(1) Press the keys P.P ,

P.P S.S

and Keys on the menu in turn to enter the factory mode,

press the key DISPLAY to exit. .This mode is usually for R&D and engineering department use.

(2) Press digital keys to enter every adjust page, use PROG+/- keys to pick adjust

items, use VOL+/- keys to adjust the value.

(3) Press DISPLAY to quit factory mode.

2.B+ VOLTAGE ADJUST

Measure C600A +point B+ + voltage,

adjust VR641 to get proper B+ voltage

according to CRT assembly list requirement.

3. RF AGC VOLTAGE ADJUST

(1)Receive 294.25MHz, 60dBcolor bar signal.

(2)Enter factory mode and pr ess digital key “4”.

(3) Measure tuner AGC point vol tage, adjust AGC item till the v oltage is 2.4V,or till

picture noise just disappears

4、

FINE ADJUST

FINE ADJUST ：

(1) FOCUS ADJUST

a. Receive cross-hatch pattern signal

b. Set picture to “RICH” mode。

c. Adjust FBT’s FOCUS knob till picture is clear

(2) SCREEN VOLTAGE ADJUST(KEY 0 )

：

a.

Set picture to “STANDARD”mode，without signal input;

b. Enter factory mode and press digital key”0”,there will be a level bright line on the

scree.

c. adjust the level bright line till it just can be seen, press PROG+ key to enter other

menu

(3) HORIZON ADJUST(KEY 1 ):

Receive 50HZ monoscope PATTERN. Set TV to standard mode. PressKEY1 to enter factory mode

b. Adjust 5HSH(for 60Hz picture,it s is 6HSH)to set picture hori zontal center to CRT horizontal center.

c. Receive 60HZ monoscope PATTERN, repeat above b item

(4) VERTICAL&YUV/RGB HORIZON ADJUST(KEY2 ):

5VSL 50HZverticallinearity 5SCL 50Hz vertical sl ope

correction

5VSH 50HZverticalcenter 5VAM 50H zvertical size

6VSL 60HZ vertical linearity 6SCL 60HZ vertical slope

correction

a. Menu OSD position adjustment: Receive 50/60HZ cross hatch pattern.

Set TV standard status. Press K

KEY 2

in factory mode, adjust

5VOF/6VOF and HOF item, to obtain menu OSD at the center of CRT

screen;

b. LOGO position adjustment: Re ceive 50/60HZ cross hatch pattern. Set TV

standard status. Press

KEY 7

in factory mode, adjust

XMIN,XMAX,YMIN, and YMAX item, to obtain LOGO at the center

upto 1/3 of CRT screen.

4-6-3 TELETEXT OSD position adjustment: Receive 50/60HZ TELETEXT

signal. Set TV standard status. Press

KEY 7

in factory mode, adjust

TXMI and 5TYM/6TYM item, to obt ain INDEX at the center of CRT

screen.

(6)

White Balance Adjustment (Applied in factory)

（

KEY 3

KEY 3 ）

Normally, this chassis can auto adjust white balance, but for some CRT need to

adjust white balance carefully by hand ，Set BRIGHTNESS and CONTRAST at

normal status , receive GREY SCAL and entering factory mode press KEY 3, set

WPR at 31, adjust WPG and WPR to obtain white balance.

6VSH 60HZverticalcenter 6VAM 60HZ vertical size

a. Receive 50Hz cross hatch signal, set TV to STANDARD mode, adjus t 5VSL

so that picture’s vertical line is just at the bottom of the half picture.

Adjust 5SCL to set proper verti cal linearity, Adjust 5VSH to set picture vertical

center to CRT center.

b. Adjust 5VAM to obtain picture’s vertical re-display ratio more than 90% .

. Receive 60Hz cross hatch signal, repeat above (1),(2).

C

d

.

If necessary, fine adjust above items.

e. Receive 50HZ RGB or YUV cross hatch signal,set TV to STANDARD

mode,adjust 5RGH till picture hor izontal center is at the CRT center.(OPTION)

f. Receive 60HZ RGB or YUV cross hatch signal, The TV is set to the standard

mode in the factory menu, adjust 6RGH till picture horizontal center is at the CRT

center.(OPTION)

Instruction ：The parts with * should be adjusted according to whether the TV has

RGB or YUV functipon.

(5) OSD POSITION:

Service Adjustments

-15-

Service Adjustments

-16-

(7) Focus adjust

(7) Focus adjust ：

Check the color purity of CRT , if the color purity is badness, please adjust it as

the following items again.

a. incept point signal, make sure the TV is set to be dynamic.

b. Loosen the assemble magnetism patch fastness nip, turn the red and the

blue magnetism ring, make the two points folded at the center of the screen.

d. Take the fastness wedge of the deflexion winding DY off, lean the deflexion

winding in the level and the vertical directions gently in order to get a favorable

moving assemble, which can make the points at the edge of the screen clearer,

and rotate the fastness nip finally.

e. Insert the fastness wedge and fix it up, first, insert the left at the bottom one,

then the left at the bottom, the right at the top and the left at the top ones.

c. Rotate the red blue-green whisht assemble magnetism ring, make the red,

blue and the green point folded at the center of the screen.

5 E2PROM INITIALIZTION、

(1) E2PROM initialization (KEY 8 )：

We can use an empty E2PROM when making the sample TV or repairing,also can use the

E2PROM which has been full of data,but you must follow the steps below to initialize the E2PROM.

Press the keys P.P ,

S.S and in turn to enter the factory mode Press。KEY 8,VOL +/- in turn, you

may see the OSD”BUSY” after the INIT on“”the screen About。a while, the character BUSY will“”

disappear then，POWER OFF and ON the TV, the initialization is completed。

(2) FUNCTION SETTING (KEY 5 )

Press the keys P.P , S.S and in turn to enter the factory mode Press KEY 5 to enter the setting menu。。

b.Set values to OPTION 1- OPTION 7

c.LOGO setting when powered on or no signal Press：key SCAN in factory menu to enter the LOGO edit

mode there，are two rows the，1st can set the customer's name etc and，the 2nd row can set to display the

customer's e-mail, phone… Press。the keys “PROG +/- ”to select the character to edit use，keys “VOL+/-”

to choose the charater.

Service Adjustments

-17-

The detailed instruction of 3P51/5P18

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