Quadro CTV-63N11 TXT, CTV-72D11 TXT, CTV-72SF65 TXT, CTV-72SF50 TXT Service 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-----------------------------------------------------

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

，

，，

100

+700 -600

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.

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

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-

TDA9384--India

SCART 1

SCART 2

RGB

Vin

REAR AV SIDE AV S-VHS

CinAV in

ANTENNA

TUNER IF AMP

SAW101

NICAM-TDA9874

MTS-TDA9850

AV-SW HEF 4052

AV OUT

YCVLRR

AMP-TDA9842/9843

TONE CONTROL

AUDIO

24C08

W6556A

V-AMP TDA4863AJ

H-DRIVE

SPL

SPR

CRT BOARD

29" CRT

V--DY

H--DY

R OUT

G OUT

B OUT

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

BCLIN

BLKIN

CVBS3/Y

SIFIN

Fig. 1 Block diagram

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

LOOP

H-SHIFT

V-DRIVE +

CONTR/BRIGHTN

OSD/TEXT INSERT

CCC

WHITE-P. ADJ.

80C51 CPU

C-BUS

TRANSCEIVER

ROM/RAM

TELETEXT

ACQUISITION

1/10 PAGE

MEMORY

TELETEXT/OSD

DISPLAY

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

G/Y

B/U/P

RGB/YUV INSERT

REF

CVBS

SYNC

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

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

、

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.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

(3) HORIZON ADJUST(KEY 1 ):

Receive 50HZ monoscope PATTERN. Set TV to standard mode. Press

KEY1 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 slope

correction

5VSH 50HZverticalcenter 5VAM 50H zvertical siz

6VSL 60HZ vertical linearity 6SCL 60HZ vertical sl

ope

correction

+ 30 hidden pages

Quadro CTV-63N11 TXT, CTV-72D11 TXT, CTV-72SF65 TXT, CTV-72SF50 TXT Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual