NXP Semiconductors TDA9351, TDA9353, TDA9361, TDA9363 Service Manual

NXP TDA9351/53/61/63 XXX SERIES

COLOUR TELEVISION

CONTENTS

1. safety precautions ………………………………………………………………………………………3

2. block diagram ……………………………………………………………………………………………4

3． Replacement of memory IC ……………………………………………………………………………6

4． Service adjustment ……………………………………………………………………………………...6

5． ICs functional description ……………………………………………………………………………15

6． Test point waveform………………………………………………………………………………….…18

7． All ICs/transistors voltages…………………………………………………………………………….19

8． Purity / convergence adjustment……………………………………………………………………..20

9． KLX-PH22Z VER3.0 circuit diagram ………………………………………………………………22

10． KLX-PH22Z VER3.0 PCB ………………………………………………………………………….. 23

11． KLX-PH22Z .BOM ………………………………………………………………………………….. 24

SAFETY PRECAUTIONS

1. The design of this product contains special hardware, many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the products should not be made. Any design alterations or additions will void the manufacturer’s warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of Service manual. Electrical components having such

features are identified by shading on the schematics and by ( ！ ) on the parts list in Service manual. The use

of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list of Service manual may cause shock, fire, or other hazards

4. Don’t short between the LIVE side ground and

ISOLATED (NEUTRAL) side ground or EARTH side ground when repairing. Some model’s power circuit is

partly different in the GND. The difference of the GND is shown by the LIVE: ( ) side GND, ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don’t short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure with a measuring apparatus (oscilloscope etc.) the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time. If above note will not be kept, a fuse or any parts will be broken.

5. If any repair has been made to the chassis, it is recommended that the +B setting should be checked or adjusted (See ADJUSTMENT OF +B POWER SUPPLY).

6. The high voltage applied to the picture tube must conform with that specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube must be the exact replacements or alternatives approved by the manufacturer of the complete product.

7. Do not check high voltage by drawing an arc. Use a high voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resitor to the anode button.

8. When service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the

9. manufacturer’s replacement components.

10. Isolation Check (Safety for Electrical Shock Hazard)

After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screwheads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

11. The surface of the TV screen is coated with a thin film which

can easily be damaged. Be very careful with it when handle the TV. Should the TV screen become soiled, wipe it with a soft dry cloth. Never rub it forcefully. Never use any cleaner or detergent on it.

(1) Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC (r.m.s.) for a period of one second. (…Withstand a voltage of 1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a periode of one second.) This method of test requires a test equipment not generally found in the service trade.

(2) Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Using a “Leakage Current Tester”, measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.).

●Alternate Check Method

Plug the AC line cord directly into the AC outlet ( do not use a line isolation transformer during this check.). Use an AC voltmeter having 1000 ohms per volt or more sensitivity in the following manner. Connect a 1500 Ω 10W resistor

paralleled by a 0.15 μ F AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.). Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.)

2 TV Block diagram

z z

TUNER

SAW

IF IN R/Y IN

RF AGC G/U IN

B/V IN CVBSINT CHROMA IFVO OUT CVBS/Y IN

SDA SCL

AUDIO OUT IK RGB OUT V OUT H OUT

TRAP

VoV2iV1iY

Ri2

Ri1

ALoA

S-VHS

24C08

POWER

UNIT

110

V26V14V

-14

V8V

3.3

CRT PCB

V IN

LA78040/41/

TDA8174A

V OUT

H IN

H OUT

heat

SCREE

FOCU

TDAXXXX

Vi1

OUT1-

OUT1+

Vi2

OUT2-

OUT2+

N752

CRT

Li1

Li2

405

audio

video

bus

video

180

405

Block diagram TDA93xx/83xx series with mono intercarrier sound demodulator

3.REPLACEMENT OF MEMORY IC

1. MEMORY IC.

This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and

deflection circuits.

When replacing memory IC, be sure to use IC written with the initial value of data.

2. PROCEDURE FOR REPLACING MEMORY IC

(1) Power off

Switch the power off and unplug the power cord from AC outlet.

(2) Replace IC

Be sure to use memory IC written with the initial data values.

(3) Power On

Plug the power cord into the AC outlet and switch the power On.

(4) Check and set system default value:

1) Press “MENU” key followed by digits '6''4''8' and '3'. then Press “TEST” key on the Remote

control unit for factory used.

2) The red “M”or”factory” will be displayed on the screen, repeat this and it will changed as follow:

normal-M(factory)-BUS open-normal..

3) Press digital key, (Mkey) and corresponding on-screen display will be appeared.

4) Check the setting value of the SYSTEM default value of Table below. If the value is different,

select items by [CH+]/[CH-] keys and set value by [VOL+]/[VOL-] keys.

5) Press “STANDBY” key again and return to the normal screen.

4.SERVICE ADJUSTMENT

B1 POWER SUPPLY

1. Receive normal colour bar signal.

2. Connect DC voltmeter to VD524- and isolated ground.

3. Adjust potentiometer in power unit to get the voltage as 110V ±1.0V for 21 inch hereinafter,

FOCUS ADJUSTMENT

1. Receive a crosshatch signal.

2. While watching the screen, adjust the FOCUS VR to make the vertical and horizontal lines as fine and

sharp as possible.

BUS CONTROL ADJUSTMENT

TDA9351/9353:to enter BUS control mode, Press “MENU” key followed by digits '6''4''8' and '3'. then

press digit Press “0” to “9“ key, (Mkey) and corresponding on-screen display will be appeared.

TDA8370:to enter BUS control mode, Press “MENU” key followed by digits '6''4''8' and '3'. then Press

“TEST” key on the Remote control unit twice for factory used(or press digits '6''4''8' and '3' twice.). and then

press digit Press “0” to “9“ key, (Mkey) and corresponding on-screen display will be appeared.

On TV screen “TEST” will be indicated, this means entered bus control mode.

And press following key, each function will be available.

Remote Hand Unit keys

[M1] [M2] [M3]

[M4] [M5] [M6]

[M7] [M8] [M9]

[M0]

Geometrical adjustment

MENU8 (9351)/servise 1(8370)

Receive PAL standard Complete pattern signal.

Adjustment steps：

a) Adjust V. SLOPE, to the center horizontal line just appeare from half bottom shadow.

b) Adjust V. SIZE, to get 90% of vertical picture contents would be displayed on CRT.

c) Adjust V. SHIFT, the center horizontal line correspond to CRT vertical center.

d) Adjust H.SHIFT, to get the picture horizontal center correspond to CRT horizontal center.

Receive NTSC signal and repeat above

AGC Adjustment.

MENU7 (9351)/servise 2(8370)

Receive 60dBμ(1mV)V

colour bar pattern signal，adjust AGC value（voltage from high to low），to noise

reduce gradually and just disappeared point.

CRTcut off and white balance adjustment.

MENU9 (9351)/B W BALANCE(8370)

Receive white signal.

a) CRT cut off adjustment.

1. Select “SC”, then automatically vertical scan will be stopped.

2. Adjust SCREEN control on Flyback transformer to get the darkest single horizontal line (red,

green, or blue, sometimes shows more yellow, more purple or more white).

b) White balance adjustment.

1. Select RD/BD menu.

2. Adjust RD/BD to get colour temperature as x=281, y=311

c) Sub-Brightness adjustment. (Use stair case signal)

1. Select SB menu.

2. Adjust SB to get the darkest step being cutoff.

MENU8

V SLOPE 31 V SHIFT 31 V AMP 31 V SCOR 31

H SHIFT 31

c d e

j k

f g h

ICs Default Settings

1． TDA9351/9353

MI Items Vari

able

Prese

discription

M0 AVL ON/OFF ON Auto volume control select on menu.on:open;off:close.

FSL ON/OFF ON Vertical sync slice level select.off:auto;on: 60% of complex sync FMWS 0-2 0 FM demodulation band width.0:standard(225khz);1: for over FM

modulation(450KHz);2:for over FM modulation(600KHz)

FFI ON/OFF OFF

IF PLL filter.on:short

time constant;off:normal

OSO ON/OFF ON Decreasing bright spot when switch off stay at the vertical over scan

period .ON:open;OFF:close.

FCO ON/OFF OFF Forced color system. On:only for single color system(for example

VCR); off:normal WOOFER ON/OFF OFF Woofer select on menu.on:open;off:close. DVD DELAY 0-8 2 Delay of turning to TV from DVD DVD/VCD ON/OFF OFF Display on screen.on:DVD;OFF:VCD.

M1 BAND 0~2 2 Tuner band mode select,see attached table 1

AV OPT ON/OFF OFF AV control logic option,see table 2 AV CFG* 0~8 3 AV input stuts select, see table 2 NTSC MX USA/JAP USA NTSC matrix select(USA or JAPAN) VIDEO OUT IF/CVBS CVBS AV output mode select:TV /display on screen PRO 0-3 0 Sharp the boardline PIN5 NTSC Compatible with other hardware, see table3 PIN7 VOL1 Compatible with other hardware, see table3 PIN8 MUTE Compatible with other hardware, see table3 START TIME 6-15 S 8 Delay time after power on

M2 VISION IF 38/38.9/4

5.75/58.7 5

38.9M IF select

DK ON/OFF OFF Sound system select BG ON/OFF ON Sound system select I ON/OFF OFF Sound system select M ON/OFF OFF Sound system select SIF PREFER DK/I/BG/M BG Sound system priority select when Auto scan

AUTO SOUND ON/OFF ON Sound system auto identify when auo scan POWER OPT 0-2 2 Switch on mode,0:standby,1:power on;2:remember last time. TXT DEF 0-3 0 Text language selset TXT BRI 0-63 63 Text brightness set SPANISH BIT ON/OFF OFF Spanish text bit

M3 ENGLISH ON/OFF ON Language option

ARABIC ON/OFF OFF Language option

PERSIAN ON/OFF OFF Language option TURKISH ON/OFF OFF Language option FRANCE ON/OFF OFF Language option RUSSIA ON/OFF OFF Language option HUNGARY ON/OFF ON Language option SPANISH ON/OFF ON Language option CROATIA ON/OFF ON Language option GREECE ON/OFF ON Language option PORTUGUESE ON/OFF ON Language option BUGIARIA ON/OFF ON Language option SERBIA ON/OFF ON Language option ITALY ON/OFF ON Language option ROMANIAN ON/OFF ON Language option POLISH ON/OFF ON Language option

Items Variable Preset

M4 SUBCON 0~63 63 Subsidiary contrast setting

SUBCOL 0~63 63 Subsidiary color setting SUBSHP 0~63 63 Subsidiary sharp setting SUBTINT 0~15 15 Subsidiary tint setting YDLY PAL 0~15 12 Y delay time setting of PAL YDLY NTSC 0~15 12 Y delay time setting of NTSC YDLY SEC 0~15 12 Y delay time setting of SECAM YDLY AV 0~15 12 Y delay time setting of AV UOC VOL SW ON/OFF OFF Audio output mode option.on:output controlled by volume;off:not

controlled. UOC VOL 0-63 63 Audio output range setting of pin44 TDA9874

GAIN

0-30 5 Output range adjusting of TDA9874

CATHODE 0~15 15 Cathode voltage setting SC BRI 0~63 32 The single horizontal line brightness setting TINT RANGE 0-63 31 Tint adjust range setting

M5 OSD VPOS 0~63 53 OSD position setting of vertical

OSD HPOS 0~59 15 OSD position setting of horizontal WIDE 0~63 15 Vertical range setting of wide screen mode ZOOM 0~63 59 Vertical range setting of zoom mode NENU TITLE 0~6 3 Color setting of menu title

MI HALFTONE 0-2 1 Halftone setting of menu

M6 SHIPMODE Ship mode setting option

SPEED

0-3 1 Search speed setting.o:slow;3:fast

PWL 0-15 15 White peak limit OSD

CONTRAST

0-3 0 OSD contrast setting.0:bitght;3:dark

BLUE STR. ON/OFF ON Blue level stretch option BSD ON/OFF ON Black level stretch range.ON:30 IRE;OFF:20IRE. AAS ON/OFF ON Black level actived area.ON:no more than 10%of black

background;OFF:no more than 20% of black background.

CORING 0-3 0 Coring and decrease nosie.0:off.

M7 AGC-TOP 0-63 24 RF AGC adjusting

AGC-SPEED 0-3 1 AGC delay time adjusting LOGO OPT ON/OFF OFF LOGO option

VOL6 0-63 17 Volume setting of 10%

VOL16 0-63 32 Volume setting of 25% VOL32 0-63 48 Volume setting of 50% VOL63 0-63 63 Volume setting of 100% 7KEYS ON/OFF OFF “POWER”key option of key board X RAY ON/OFF OFF X RAY protect function option OSVE ON/OFF OFF AKB detect line hide option(supported by TDA9353/63) HCO ON/OFF O FF Auto horizenal range revise option(supported by TDA9353/63)

M8 FREQUENCY 50HZ 60HZ Display vertical frequency automaticly

VSLOPE 0~63 31 31 Vertical slope adjusting VSHIFT 0~63 31 31 Vertical shift adjusting VAMP 0~63 31 31 Vertical size adjusting VSCOR 0~63 31 31 Vertical correct adjusting HSHIFT 0~63 31 31 Horizontal shift adjusting RGBHS 0~63 31 Vertical shift adjusting of RBG/YUV RGB HPOS 0~63 31 OSD horizontal shift adjusting of RBG/YUV EW WIDTH 0~63 31 Horizontal range adjusting EW PARA 0~63 31 East-west curve adjusting UP CORNER 0~63 31 Up conner adjusting LO CORNER 0~63 31 Low conner adjusting H-PARA 0~63 31 Paralleloqram adjusting H-BOW 0~63 31 Bow adjusting EW-TRAPE 0~63 31

Trapezoid adjusting

M9 BT 0~63 48 Brightness adjusting of white balance

CT 0~63 48 Contrast adjusting of white balance SC OFF Single horizontal line.open by “V+”;closed by “V-” RB 0~63 32 Red cut adjusting GB 0~63 32 Green cut adjusting

RD 0~63 32 Red drive adjusting GD 0~63 32 Green drive adjusting BD 0~63 32 Blue drive adjusting SB 0~63 40 Sub-brightness adjusting

ATTACHED TABLE1

BAND=0 BAND=1 BAND=2

PIN10(B2) PIN11(B1) PIN10(B2) PIN11(B1) PIN10(B2) PIN11(B1) VL 0 0 0 1 1 0 VH 1 0 1 0 0 1

U 0 1 1 1 1 1

TABLE2

AV OPTION:MENU1→AV CFG;

O=TV→AV;1=TV→AV1→AV2;2=TV→AV1→AV2→S-VIDEO;3=TV→AV1→AV2→S-VIDEO→YUV; 5= TV→AV→S-VIDEO;6= TV→AV→S-VIDEO→YUV;7= TV→AV→YUV;8=TV→EURO; 9=TV→AV→EURO

When“AV OPT”is setting “OFF”,the logic table of AV control

MODE TV AV2 AV/AV1/YUV/EURO(RGB) SVHS

Pin62 L L H H Pin63 L H L H

When“AV OPT”is setting “ON”,the logic table of AV control

MODE TV AV2 AV/AV1/YUV/EURO(RGB) SVHS

Pin62 H L L L Pin63 H H L L

TABLE3 Pin5,pin7,pin8 is variable for c

ompating with other hardware

NTSC Control SAW filter ,switch between M

and N

VOL2 PWM control output for left AMP.

DVD Output for DVD&TV cabine control VOL1 PWM control output for right AMP.

SCART Scart detect level input WOOFER For woofer controlling

MUTE For audio mute mode MUTE2 For mute mode 2

LED For LED controlling SV-DT S-VIDEO detect level input

BAND3 For band3 controlling 5060 Output for 50/60Hz alternate

+ 23 hidden pages

NXP Semiconductors TDA9351, TDA9353, TDA9361, TDA9363 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual