China TV 14TS1010 Schematic

SERVICE MANUAL

MODEL: 14TS1020

CHASSIS: 3P68S

EN 1

1.

3P68S

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections,and Chassis Overview

Index of this chapter

Technical Specifications
Connection Overview
Chassis Overview

Note:

Data below can deviate slightly from the actual situation, due to the differentsetexecutions.

1.1.Technical Specifications

TV PRODUCT FEATURE LIST

System

Picture

SOUND

AV STEREO

Chassis

CRT Size
Main IC.

Main PCB Size

Color Standard

Sound Receiver

System (AV)

Power Source

Power Standby

Maximum Power

PRESET CHANNEL

TUNER TYPE

Antenna Input

COM.FILTER

Double Window

Progressive Scan

Freeze

Zoom

SVM

Screen saver

Blue Back

Noise Reduction

Pictures effect

Color Temperature

Black Extend

Nicam/A2 (with AV STEREO)

Tone control

Surround

MTS (with AV STEREO )

Tone control

Surround

Tone control

Surround

3P68S(14" CRT

TV)

14" Ultra Slim

TDA11145

197*250

NTSC-M/PAL-

M/N
M,N

PAL/NTSC

AC100-240V

50/60Hz

＜1W

< 60W

181CH

FS

75 Ohm

(Unbalance)

NO
NO
NO
NO
NO
NO
NO

YES

No

Standard, Soft,

Rich, User

NO

YES

NO
NO
NO
NO
NO
NO
NO
NO
NO

ical Specifications, Connections, and Chassis Overview

Techn

3P68S

1.

EN 2

Features

MONO

Audio Output Power (MAX)

Subwoofer Out

Mute

Sounds Effect

No signal auto standby

Timer Off/On

Sleep Timer
Rename channel
Favorite channel
Biological Clock

Calendar

Program prearrange

Child Lock
Quick view

Hotel mode

Clock
Game

CCD

V-Chip

High gain tuner

Customer Band Name (OSD)

Mode

Teletext

Pages

X26 Packet

NO

2W*1

NO

YES

NO

15 Mins

YES
YES

NO
NO
NO
NO

NO
YES
YES

NO
YES

NO
YES
YES

NO

NO

NO

NO

NO

Terminals

Certification

Other

OSD Language

RCA Jack

SCART

Jack in Side/Front

Jack in Rear

CE/EMC
Handset

AV In- (RCA)

AV Output

Earphone Out

YUV

S-Video In

SCART

AV In-(RCA)

AV Output

Earphone Out

YUV

S-Video In
UL
CB

English, French,

Portuguese,

Spanish

YES

NO
NO
NO
NO
NO
NO
NO

1
NO
NO
NO
NO
NO

YES

NO

RC13

EN 3

1.

3P68S

1.2. Connections

Connecting the Aerial(or Cable Television

Cable
Television
Network

Audio /Vid eo In put

Technic

VIDEO

al Specifications, Connections, and Chassis Overview

Network)

To view television channels correctly ,a signal
must be received by the set from one of the
following sources:

*An outdoor aerial
*A cable television network

75 ANT

Plug the aerial or cable network input cable to
the 75 coaxial socket on the rear of the
television.

VCR

Decoder/

VIDEO

video game device

VIDE O

AUDI O

AUDIO

AUDIO

Video disc player

Camcorder

Satellite receiver

Technic

al Specifications, Connections, and Chassis Overview

PERIPHERAL EQUIPMENT CONNECTIONS

3P68S

1.

EN 4

There is a wide range of audio and video equipment that can be connected to your TV.
Connection d

A

erial s

1. Connect the RF out socket of the VCR to the aerial socket on the back of the set.

2. C

onnect the aerial cable to the RF aerial in socket of the VCR.
elect the program number where the VCR channel is stored.

3. S
ress the PLAY button on the VCR.

4. P

Audio/ V

1. Connect the audio/video out sockets of the VCR to audio/video in sockets of the set.
ress the AV/TV button to select AV.

2. P
ress the PLAY button on the VCR.

3. P

The V

Precautions w

When u

Switch o

Always e

iagrams at the end of this section show

ocket

ideo in

sockets

CR playback picture appears on the screen.

hen connecting to other equipments

sing external equipment with this TV, please read the

ff all power supplies to the equipment and TV before connection.

nsure that the input

utput terminals are correctly connected..

and o

.

you w

here the different equipment

instruction m

anual of

the

should be c

xternal e

e

onnected at the backside of the TV.

quipment.

3P68S

EN 51.

Technical Specifications, Connections, and Chassis Overview

1.3. ChassisOverview

CRT PANEL

MAIN

CHASSIS

PANEL

POWER SUPPLY

LINE DEFLECTION

FRAME DEFLECTION

TUNER IF

AV IN

/ VIDEO

AUDIO

CPU CONTROL

AUDIO AMPLIFIER

Safety Instructions

3P68S

EN6 2.

2.Safety Instructions

2.

1. Power-suppl y cord s should be routed so that they ar e not likely t o be walked on or na gged by items placed
upon or a
from t
servicing to y

2.

2. Do n

in

a risk of fire o r electric sh ock.

2.

3. U

damp c

2.

4. If t
electrical s
your a

2.

5. Do n
shock.

2.

6. Do n
dangerous c

2.

7. Do n
human a

2.

8. A
environment.

2.

9. Do n

2.

10. Do n

2.

11. Do n

2.

12. K

2.

13. Do n

2.

14. Do n

2.

15. C

2.

16. If t

section in y
dealer.

2.

1

other c

2.

18. F
antenna or c

2.

19. If

authorized d

2.

20. To p

2.

21. A

2.

22. If t

gainst them. Pay particular atten tion to cords at doo rs, pl ugs, receptacles, and the point where they exi t

he product. Wh en the power cord or plug is damaged or frayed, unplug the TV f rom the wall outlet a nd ref er

our authorized deale r.

ot overload wa ll outlets, extensi on cords, or c onveni ence receptacles on other equipment as t his can resul t

nplug the TV product from th e wall outlet before cleaning. Do n ot use liquid cleaners or aerosol cleaners. Use a

loth for clean ing.

he TV sh ould be dropp ed and/ or broken, it could resul t in an injur y, and continued use could result in fire or

hock. Immediately tu rn off the pow er switch, di sconne ct the power plug fr om the power outlet a nd contact

uthorized deal er.

ot insert liqu ids or foreign objec t. Penetration of liquids or fore ign objects could result in fire or elec trical

ot attempt to s ervice the TV yourself. Opening o r remo ving covers can expose you to hig h voltage and other

onditions. Ref er all servicing to your authori zed dealer.

ot place the TV on an unstable shel f, slant or vibrant surface. The T V may f all, causing serious injur y to

nd serious dam age to the app liance .

void dusty pla ces, since ac cumula ted dust insi de the chassis may cause fa ilure o f the TV when in hig h humidity

ot place the TV near w ater. F or example, a bathro om, a beach, e tc.

ot obstruct th e ventilation openi ngs of the equ ipment with items such as n ewspap ers, tablecloth, et c.
ot place the TV on a carpet, sofa or bedd ing.

eep the TV away from heat sources such as radiators, he aters, stoves and other heat gen eratin g products.

ot place the TV in a "built- in" enclosure, unle ss proper ven tilati on is provide d.
ot place flowe r vases, pots , cups, cosme tics, l iquids such as water, etc o n or around the TV.

hoose a p lace where light (a rtific ial or sunlight) doe s not shine directly on the scree n.

he TV do es not work pr operly and yo u are unable t o restore nor mal operation by fo llowin g the "troubl eshoot ing"

our instruction manu al, do not att empt any furt her adjustment. Unp lug the TV and consult you r authorized

7. Do n

ot touch the controls other than those described in the oper ating i nstruc tions a s improper ad justme nt of
ontrols may result in damaging. Pl ease ask your service auth orized dealer to restore the TV t o normal oper ation.
or added prote ction for thi s TV du ring a lightning sto rm, unplug it from the wal l outlet and d isconn ect the

able system.

a strang e sound or smell giv es off from th e TV, p lease t urn off and unplug it from the wal l outlet, then refe r to

ealer.

revent fire, never place an y type of cand le or naked flames on the top or n ear the TV.

void any kind o f impact to the TV. B e spec ial careful not to damage t he screen fac e.

he TV is to rem ain unused fo r a period of time. Turn of f and unplug i t from the wal l outlet.

3P68S

EN73.

MechanicalInstructions

4.

Service Modes

3P68S 4.

4. 3P68S Service Modes

4.1. Enter and exit service mode4.1. Enter and exit service mode

a. Enter "factory service mode" Press "MENU","Q.VIEW" and "PP" in turn.：
b. Enter "design service mode" : After entering "factory service mode",select"SC"item,then press "8","9"keys.

(Normally "design service mode"is not needed for production line.)

c. Exit service mode: Press"DISPLAY"key to exit service mode.

Adjustment:
In service mode,pressing digital keys directly can enter the corresponding page,pressing "MENU"key can enter

the next page,pressing "SCAN"key can enter prevenient page.

Pressing "UP"and"DOWN"keys can select the items to adjust, pressing"LEFT" and"RIGHT"keys can adjust the
values.

4.2. BUS OPEN mode4.2. BUS OPEN mode

In service mode, pressing"MUTE"key can enter "BUS OPEN"mode, which is useful for white balance adjustment

using AUTO WHITE BALANCE EQUIPMENT or mass data written into EEPROM. IC. Pressing"MUTE"key again
can exit "BUS OPEN" mode.

4.3. VG2 adjust mode4.3. VG2 adjust mode

Two methods to adjust VG2 voltage:

(1) OSD mode:
This mode is for sets with AKB function(page10 "VG2-MODE"is set to 1 and hardwire is with CCC loop ), adjust

the VG2 potmeter on the FBT till "OK" is displayed.

(2) Horizontal line mode:
This mode is for sets without AKB function(page 10"VG2-MODE" is set to 0 and hardwire is without CCC loop),
adjust the VG2 potmeter on the FBT untill the faint horizontal line appears in dark room(usually only one colour:
Red ,green or blue.

*Note:VG2 voltage is also controled by"VG2-BRI"on page (5).*Note:

EN8

4.4. FACTORY mode4.4. FACTORY mode

In service mode, pressing"PP"key can erter "FACTORY MODE", which is useful for aging in production lines.
Pressing "PP"key again can exit "FACTORY MODE".

4.5. RF AGC adjustment4.5. RF AGC adjustment

a. Receive 571.25MHz , 60dB color bar signal.
b. Enter factory mode and press digital key "03".
c. Measure tuner AGC point voltage, and adjust AGC item till the voltage is (or till picture noise just2.7V 0.1V

disappears) Usually the AGC value is fixed to 20.。

4.6. FOCUS adjudtment4.6. FOCUS adjudtment

a. Receive cross-hatch pattern signal.
b. Set picture to"RICH" mode.
c. Adjust FBT's FOCUS knob till picture is clear.

4.7. SCREEN VOLTAGE adjustment4.7. SCREEN VOLTAGE adjustment

a. The TV set will be set up in the "AV" "STANDARD" mode, no signal input.
b. Enter into adjust factory mode, and press "03" keys to choose "Vg2" item, it will be permitted to enter light
Line mode.

c. In light-Line mode, Rotating screens potential for grid-line level so you can adjust. Press "CH+."or "CH-." Key ,

the by-line can be returned to the state in full screen mode, and then exit it.

4.8. Aging of machine mode4.8. Aging of machine mode

a. When enter into factory mode state, pressing P.P. key will be permitted to enter Aging of machine mode.
b.Press "8"key and "9"key one by one button exit aging mode .

4.9. BTSC alignment method(3P66SN)4.9. BTSC alignment method(3P66SN)

a. FLUKE 54200 trasmitting colour bar Signal frequency at 61.25MHZ Signal strength at 80dB Test 3 under，，，
BTSC settings sound frequency at 300HZ Input signal to 3P66SN Latam RF, turn on TV.（）。

3P68S

b. After TV operate normally, use 3P66SN Latam RC to perform Auto-search or select CH03.
c. E

nter factory mode (exact de tails r efer to 3P66SN alignement instruction), use Multimeter

measure at J

d. E

nter factory mode page 7 in the selection of BTSC-L1, use mult imeter FLUKE 87 Ⅲ to measure R860( CHL),

862(CHR) ( eff ective L, R audio ou tput from TDA9580 BTSC demodulation), Adjust BTSC-L1 to achieve

and R
CHR, C
e. F
under B

f. U
page 7, S
interdependent w
and 3

g. “Reduce t
BTSC-Stereo, S

pressing “SAP” k
BTSC-SP w
values f

HL at 0.5 0.02 Vrms.

LUKE 54200 tra nsmitt ing colour ba r Signal f requen cy at 61.25MH Z Signal s trengt h at 80dB, Item Test1， ，

TSC, BTSC-MOD to set S tereo.

se Dual Trace Oscillo scope, CH1 measures R860 (CHL), CH2 meas ures R862(CHR).Enter Fact ory mode

kHz. (Suggest default value of 4)

or BTSC-ST and BTSC-SP.”

852 to achieve a read ing of 0.25 0 .02 Vrms.

elect Stereo in BTSC-MODE, adjust BTSC-A1 and BTSC-A2, to achieve the clearest, cleanest, least

aveforms of 30 0Hz and 3kHz. Also adjust B TSC-TC , to achieve the bes t waveform of 300Hz

he signal stre ngth of FLUKE 54200 to 30dB, transmitting colour bar , Signal freq uency a t 61.25MHZ，

AP-MOD, audio frequency at L=300Hz, R=3k HZ. Adjust va lues of BTSC-ST and BTSC-SP while

ey on th e RC, until no detection of Stereo and SAP, th en Adjust val ues of BTSC-ST and

hile pressing “SAP” key on the RC, unt il proper det ection of Ste reo and SAP. Final confirmation of

4.

EN9

Service Modes

4.

FL

4.10. Factories parameters of the adjustment4.10. Factories parameters of the adjustment

Debugging items and directive fro m the page " 0" to page" 15" consists of 16 ite ms, and a "predetermined
adjustment p

age" Below s are testing the it ems specified， ：

UKE 87 Ⅲ to

(0) Page 0

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Horizontal shift HSH 50Hz Horizontal center 0…63 35

Horizontal shift HSH-60 60Hz Horizontal center 0…63 30

EW Width EWW 50Hz EW Width 0…63 50

EW Width EWW-60 60Hz EW Width 0…63 50

Vertical Slope VSL 50Hz Vertical Slope 0…63 30

Vertical Slope VSL-60 60Hz Vertical Slope 0…63 30

Vertical Shift VSH 50Hz Vertical Shift 0…63 35

Vertical Shift VSH-60 60Hz Vertical Shift 0…63 35

Vertical Amplitude VAM 50Hz Vertical Amplitude 0…63 25

Vertical Amplitude VAM-60 60Hz Vertical Amplitude 0…63 25

S-correction SC 50Hz S-correction 0…63 20

S-correction SC-60 60Hz S-correction 0…63 20

EN 10

(1) Page 1

3P68S

4.

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

EW parabola/width PW 50Hz EW parabola/width 0…63 40

EW parabola/width PW-60 60Hz EW parabola/width 0…63 40

EW trapezium TC 50Hz EW trapezium 0…63 25

EW trapezium TC-60 60Hz EW trapezium 0…63 25

Upper corner parabola UCP 50Hz Upper corner parabola 0…63 40

Upper corner parabola UCP-60 60Hz Upper corner parabola 0…63 40

Lower corner parabola LCP 50Hz Lower corner parabola 0…63 42

Lower corner parabola LCP-60 60Hz Lower corner parabola 0…63 42

Horizontal

Horizontal

parallelogram

parallelogram

HPAR 50Hz

Horizontal

HPAR-60 60Hz Horizontal

parallelogram

parallelogram

0…63 28

0…63 28

Horizontal bow HBOW 50Hz Horizontal bow 0…63 35

Horizontal bow HBOW-60 60Hz Horizontal bow 0…63 35

(2) Page 2

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Black level offset C BLC

Common

course

black level

Black level offset R BLR Fine black level offset R 0…63 33

offset

0…63 7

Black level offset G BLG Fine black level offset G 0…63 35

Black level offset B BLB Fine black level offset B 0…63 36

White point R WPR White point R 0…63 42

White point G WPG White point G 0…63 31

White point B WPB White point B 0…63 48

3P66S

(3) Page 3

EN 114.

Service Modes

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

AGC Take over AGC AGC Take-over 0…63 20

VG2 VG2 Adjustment Vg2 voltage 0…63 25

(4) Page 4

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Speech treble S-TR Speech treble 0…63 24

Speech bass S-BA Speech bass 0…63 42

Music treble M-TR Music treble 0…63 42

Musia bass M-BA Music bass 0…63 48

Theatre treble T-TR Theatre treble 0…63 32

Theatre bass T-BA Theatre bass 0…63 48

AV curve offset AV-OF AV curve offset compare TV -31…+32 -3

Volume curve V-05 0-5 Volume curve 0…81 40

Volume curve V-10 5-10 Volume curve 0…81 55

Volume curve V-20 10-20Volume curve 0…81 63

Volume curve V-30 20-30Volume curve 0…81 67

Volume curve V-40 30-40Volume curve 0…81 69

Volume curve V-50 40-50Volume curve 0…81 70

Volume curve V-63 50-63Volume curve 0…81 80

(5) Page 5

Service Modes

3P68S

EN 124.

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Soft brightness S-BRI Soft brightness 0…63 35

Soft color S-COL Soft color 0…63 25

Soft contrast S-CON Soft contrast 0…63 30

Soft sharpness S-SHA Soft sharpness 0…63 35

Nature brightness N-BRI Nature brightness 0…63 35

Nature color N-COL Nature color 0…63 25

Nature contrast N-CON Nature contrast 0…63 40

Nature sharpness N-SHA Nature sharpness 0…63 60

Rich brightness R-BRI Rich brightness 0…63 40

Rich color R-COL Rich color 0…63 30

Rich contrast R-CON Rich contrast 0…63 60

Rich sharpness R-SHA Rich sharpness 0…63 63

(6) Page 6

Service setting OSDService setting OSD

DDeessccrriippttiioonn VVaalluuee DDeeffaauulltt

ddiissppllaayy

IFA IFB IFC IF PLL demodulator

frequency setting

0: 58.75MHz
1: 45.75MHz
2: 38.90MHz

3: 38.00MHz
4: 33.40MHz
5: 33.90MHz

1

AGC Speed A SPD AGC Speed 0..3 1

Noise reduce NR Noise reduce(effect

when reopen TV)

0: OFF
1: ON

0

3P68S

EN 134.

Service Modes

BKS&BSD Register BKS BKS&BSD Register

BKS(Black stretch

switch):

setting

0:o

ff 1:on

BSD(Black stretch depth):

0: 15 IRE 1: 30 IRE

BKS=1(default)

0: BSD=0
1: BSD=1

Blue screen B B Blue screen(effect

when reopen TV)

0: No blue screen

1: blue screen

Video mute V-M Video mute 0: No black screen when

switch off

1: black screen when

switch off

or 5

3P66

selection

P66

3 or 5 3P66 or 5P66

selection(AV

switch )

0: 3P66

1: 5P66

1

1

0

AV POC Setting A-POC AV POC Setting 0: POC=0

1: POC depend on IFI

TV POC Setting T-POC TV POC Setting 0: POC depend on LOCK

or SL

1: POC depend on LOCK

FI

or I

2: POC depend on LOCK

or SL or IFI

Blue screen condition BLUE Blue

condition

screen

0: depend on program

1: AV depend on IFI
TV depend on IFI or SL

Switch off condition OFF Switch off condition 0: depend on program

1: AV depend on IFI

TV depend on IFI and

VG2 MODE VG2-Mode VG2 MODE 0: light –Line mode

1: character mode

1

1

1

0

SL

0

VSD-Bri VSD-Bri 0…63 25

CC Delay DELAY CC Delay 0…127 2

Service Modes

(7) Page 7

3P68S

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

EN 144.

BTSC-MODE MODE BTSC

mode force

0…2

selection

BTSC-ST ST Stereo noise limit 0…15 5

BTSC-SP SP SAP noise limit 0…15 4

BTSC-LI LI Sound input level 0…15 9

BTSC-A1 A1 Separate 0…31 15

BTSC-A2 A2 Separate 0…31 20

BTSC-TC TC Time constant 0…7 4

BTSC-STS STS Stereo level switch 0/1 0

BTSC-DETECT DETECT BTSC detect time 0…255 50

ST-TIMER ST-TIMER Stereo detect count 0…255 0

MONO-TIMER M-TIMER Mono detect count 0…255 0

(8) Page 8

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Bass and Treble BAS-TRE Bass and Treble

display in sound

menu

Balance BLANCE Balance display in

sound menu

Disco Gain DISG Gain

selection

of

DISCO

COFF COF Coring of SVM

specification

0: no display

1: display

0: no display
1: display

normal

0:

gain

1: gain 6dB

:coring

0

according to

specification

1: coring off

0

1

0

0

Cap bank switch for

DCXO

PAL-M Cap bank
switch for DCXO

DCXO NTSC DCXO_CAP

setting

PM-M DCXO PAL-M DCXO_CAP

setting

0…3 2

0…3 2

3P68S

EN 154.

Service Modes

PAL-N Cap bank

switch for DCXO

PAL-N DCXO PAL-N DCXO_CAP

setting

0…3 2

1 of volume VOL1 VOL-1 sound curve 0…63 30

AKB AKB Black

current

stabilize

0: active
1: not active

DSA Register DSA Dynamic skin tone

angle

OSD Position O-V50 50Hz OSD vertical

123

0:

degree

117

1:

0…63 35

1

degree

position

OSD Position O-V60 60Hz OSD vertical

0…63 35

position

OSD Position O-HOR OSD

horizontal

0…63 36

position

1

Init NVM INIT Initialize 0/1 0

(9) Page 9

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

AV1 AV1 AV1 switch 0: no AV1

1: have AV1

S-VIDEO S-VIDEO S-VIDEO switch 0: no s-video

1: have s-video

YUV YUV YUV switch 0: no YUV

1: have YUV

AV2 AV2 AV2 switch 0: no AV2

1: have AV2

MONO IC MONO TV

selection

MONO

0: stereo

1: mono
2:mono(no MTS)

3:no4052,have

MTS(5P66)

1

0

1

1

0

Service Modes

3P68S

4.

EN 16

Standly remember R-POWER Power station 0:Direct bootstrap

1: Standby

2: remember Last

state

Logo LOGO Logo switch 0: no LOGO

1: have LOGO

Type of LOGO TYPE Type of LOGO 0:normal LOGO

1:Continental

Electric

8th key of board KEY8 8th key of board

option

0: no 8thmute key

1:have 8

th

mute

key

Vertical linearity 5VLIN 50Hz

Vertical

0…63 32

linearity

Vertical linearity 6VLIN 60Hz

Vertical

0…63 32

linearity

2

0

0

0

VCS 5VSCR 50Hz VSCR 0…63 32

VCS 6VCSR 60Hz VSCR 0…63 32

(10) Page10

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Sub-brightness SUB-BRI Sub-brightness 0…63 4

Max-brightness MAX-BRI Max-brightness 0…63 63

Sub-contrast SUB-CON Sub-contrast 0…63 5

Max-contrast MAX-CON Max-contrast 0…63 63

Max-colour MAX-COL Max-colour 0…63 63

No signal EWW N-EWW No signal EWW -31…+32 0

ESPANA option ESP Espanish option 0: no

1: have

FRANCE option FRA

Franch option 0: no

1: have

PORTUGAL option POR Po

rtuguese option 0: no 1

1: have

1

1

3P68S

4.

EN 17

Service Modes

Brightness of black

balance

BT Brightness of black

balance (TV and

YUV)

Contrastness of black
balance

Brightness of white

balance

Contrastness of white

Balance

CT Contrastness of black

and

balance(TV

YUV)

WBT Brightness of white

balance(TV

and

YUV)

WCT Contrastness of white

balance(TV

and

YUV)

VX VX-VAM VX or VAM active for

VX 16:9 VX

NORMAL and VX

EXPAND

0…63 10

0…63 10

0…63 25

0…63 23

0: VX

0

1: VAM

(11) Page 11

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Peak white PWL Peak

white

Cathode HDOL Cathode voltage 0…15 10

Offset

IF

demodulator

OIF Correction for DC

offset

in

Mono active MONO-PIN Mono active 0: L&R

FBC&FBC1 register FBC01 FBC: Fixed beam

current

FBC1:
beam current
during switch

limiting

the

IF-PLL

switch off

Fixed

0…15 15

0…63 32

1: Fix R

0:FBC=0

FBC1=0

1:FBC=1

FBC1=0

2:FBC=0
FBC1=1

3:FBC=1

FBC1=1

0

0

PAL-M OF YD0-YD3

SETTING

NTSC OF YD0-YD3

SETTING

AV OF YD0-YD3

SETTING

P-YD PAL-M OF Y

D

ELAY

N-YD NTSC OF Y

0…15 9

0…15 8

DELAY

A-YD AV OF Y DELAY 0…15 10

Service Modes

DMPH register DMPH DMPH

3P68S

0:
1: active

not

4.

active

EN 18

0(MTS)

1(noMTS)

CBAF0&CBAF1 CBAF0-1 Bass

frequency

selection

CTRF0&CTRF1 CRTF0-1 Treble frequency

selection

CB register CB

Chroma
center

bandpass

frequency

MTXF&MUS&MAT MATRIX 0:NTSC-Japanes

e or PAL matrix

1/3/5/7:

PAL

matrix

4:NTSC-Japanese

atrix

m

6:NTSC-USA

m

atrix

FMWB register FMWB 0: FMWB=0

1: FMWB=1

2: continue detect
FML mode

mode

detect

3:

a

in

FML

minute

0..3 0

0..3 0

0: Fsc

1: 1.1 F sc

0…7 4

0…3 0

0

HCO register HCO EHT tracking

0:EHT

tracking

mode

0/1 1

Only

on vertical

1:EHT tracking on

vertical&EW

(12) Page 12

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

AGN AGN gain

FM

demodulator

0: normal

1: +6dB

0: PAL AGN=0

NTSC AGN=0

1: PAL AGN=0

NTSC AGN=1

2: PAL AGN=1

NTSC AGN=0

3: PAL AGN=1

NTSC AGN=1

0

(

1

(MTS)

NO

MTS

）

3P68S

EN 194.

Service Modes

AGNE1&AGNE0 AGNE Extended gain

settings for FM
demodulator

0: normal
1: +3.8dB
2: -6dB
3: -3dB

FMWS1&FMWS2 FMWS Window select for

FM demodulator

0: 100kHz
1: 225kHz

2: 450kHz
3: 900kHz

BPB2 BPB2

Bypass sound
bandpass

filter

section 2

0: active
1: bypass

FFI FF1 Fast filter IF-PLL 0: normal time

1: increased time

COR1&COR2 A-COR Video dependent

coring

For AV

0: off
1: 0 and 20 IRE
2: 0 and 40 IRE

3: 0 and 100 IRE

0: o

COR1&COR2 T-COR Video dependent

coring

For TV

ff

1: 0 and 20 IRE

2: 0 and 40 IRE

3: 0 and 100 IRE

1

1

1

0

2

3

PF0&PF1 PEAK Peaking center 000000b-111111b 56

frequency

and

delay

0: 2.7MHz 190ns

1: 3.1MHz 160ns

bit0,bit1 NTSC PEAK FQ
bit2,bit3 PAL PEAK FQ

bit4,bit5 AV PEAK FQ

2: 3.5MHz 143ns
3: 4.0MHz 125ns

1

FOA&FOB FOA-FOB Phase

constant
0

0 : normal

0 1: slow

1 0: OSD mode

time

0:FOA=1 FOB=1 AV

FOA=0 FOB=0 TV

1:FOA=1 FOB=0
2:FOA=0 FOB=1

0

1 1: fast

DSG of TV TV -DSG Gain from audio

inputs to audio

0: 0dB

1: +6dB

1

outputs(TV)

DSG of AV AV -DSG Gain from audio

inputs to audio

0: 0dB
1: +6dB

1

outputs(AV)

LOGO position LOGO-UD LOGO position 0…63 10

Service Modes

3P68S

4.

EN 20

Menu horizontal
position

DSGLS register DSGLS Extra

MENU-H Menu horizontal

position

gain

selection

0…63 35

0: 0dB 1

loudspeaker
outputs

(13) Page 13

1: +6dB

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Slicing level SSL

Slicing level FSL Forced slicing level

Slicing level for

horizontal sync separate

for vertical sync

0: 50%
1: 30%

0:slicing

level
dependent
noise detector

1:fixed

slicing

level of 60%

no

0

0

AAS0&AAS1 AAS Black area to switch

off the black strech

0: 12%

1: 20%
2: 6%

3: 8%

SOC0&SOC1 SOC Soft clipping level

0…3 2

00: 0%above PWL
01: 5%above PWL

10: 10%above PWL
11: soft clipping off

MUTE PIN logic M-MUTE MUTE PIN logic 0: for 7266SA

mute L
no mute H

1: for 2052

mute H

no mute L

HBL HBL RGB blanking mode 0:normal blanking

1:wide blanking

2

0

1

WBF WBF Timing of wide blank

(Lift wide blanking)

WBR WBR Timing of wide blank

(Right wide blanking)

0: 3.5us

15: 5.9us

0: 7.8us

15: 10.2us

0

0

EN 214.3P68S

(14) Page 14

Service Modes

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

NVM version C0 Char0 48…255

NVM version C1 Char1 48…255

NVM version C2 Char2 48…255

NVM version Y Year 8…10

NVM version M Month 0…12

NVM version D Day 0…31

XDT XDT X-ray protection 0: hardware

1: s

oftware

XDT SW active XDT-OFFON XDT SW active 0: not active

1: active

SW detect times XDT-TIME SW detect times 0…255 10

STB setting STB Standby 0: standby

1: normal

EVG register EVG Enable vertical

guard

CHSE1&CHSE0

register

CHSE T

he CHSE

vaule of strong

signal

0: not active

1: active

0: -34dB
1: -37dB

2: -41dB

3: -46dB

Auto low signal identify CHSE ON The switch of

Weak signal

0: turn off

1: turn on

identify

1

1

1

0

0

1

(15) Page 15

Service setting OSD display Description Value DefaultService setting OSD display Description Value Default

Black balance of

YUV

Y-BR Black balance of

YUV (Red)

-32…31 +2

Service Modes

3P68S

4.

EN 22

Black balance of

Y-BG Black balance of

YUV

Black balance of

Y-BB Black balance of

YUV

White balance of

Y-WR Black balance of

YUV

Black balance of

Y

-WG Bl

YUV

Black balance of

Y-WB Black balance of

YUV

4.11. White Balance auto-adjustment4.11. White Balance auto-adjustment

White

C

PU

CPU Sub address

YUV (Green)

YUV (Blue)

YUV (RED)

ack balance of

YUV (Green)

YUV (Blue)

-32…31 0

-32…31 +3

-32…31 +2

-32…31 0

-32…31 0

NVM

NVM Sub

Balance

Item

Slave

address

(TDA11135,11136,12156,11145,12165

/ TDA11105,TDA11106)

Slave

address

address

BLOR 0x8A 0x17 / 0x09 0xa0 0x003b

BLO G 0x8A 0x1 8 / 0x0 a 0xa0 0x003 c

003 d

BLO B

W P R

W P G

W P B

0x8A

x8A

0

x8A

0

0

x8A

0x1 6 / 0x0 b

1 2

2 0

2 1 /

2 2 /

/ 0x

0x

0x 1 4

1 3

0x

0x

0x

0x

0x

0x

0x

a0

a0

a0

a0

0x

0x

0x

0x

003 e

003 f

004 0

sissahCmargaiDkcolB

3P68S

.5

N

32E

tiucriC

smargaiD

stuoyaLBWPdnasmargaiDtiucriC

.3P68S

.6

N

42E

)ediSpoT(BCPniaM

stuoyaLBWPdnasmargaiDtiucriC

3P68S

.6

N

52E

)ediSmottoB(BCPniaM

stuoyaLBWPdnasmargaiDtiucriC

3P68S

.6

N

62E

EN 27 7.

3P68S

IC601(POWER SUPPLY)STR-W6553 A
Block D

iagram:

IC Data Sheet

IC Data Sheet

3P68S

EN 287.

IC101(O TP SIGNAL PROCESSOR FOR CRT TV)TD
Block D

iagram:

A11145PS N3

EN 29 7.

3P68S

IC Data Sheet

Tr

oubleshooting

8.Troubleshooting

The following problems do not always indicate a hardware failure. Therefore, please use the

before c

service.

alling for repair service. If, after following the

PPrroobblleemm CChheecckkss aanndd AAddjjuussttmmeennttss

guide

one of the remedies work, unplug the TV and call for

n

3P68S

troubleshooting guide below

8.

EN 30

TV will not turn on

No picture, no sound

No sound, picture OK

Spots on the screen (Snow)

Poor reception of broadcast
channels

Make sure the power cord is plugged in,

then p

ress POWER button.

Check b

(Maybe b

Ensure t
Check a
Try d

Maybe s

VOL+ b
Try a
Check t

Maybe t

interference f

high-voltage t

signs or a

Try r

to r
Change c

symptom is s

Try a

Check a
If u
Adjust f
Probably l

appliance.

attery in the remote control.

atteries are dead.)

he TV power is ON .

ntenna/ cable connections.

if ferent channel.

ound is muted. Try pressing

utton is not set to minimum.

nother channel.

he AV cables for disconnection.

he TV is being affected by

rom automobiles, trains,

ransmission lines, neon

nother sources of interference.

edirecting or relocating your antenna

educe the affects of the interference.

hannels to confirm if the

till present.

nother channel.

ntenna connections.

sing VCR, check TV/VCR button.

ine tuning control.

ocal interference, such as an

VCR

Cannot select a certain channel

Remote Control does not operate

The picture is doubled or tripled
(GHOST)

Degraded colours or tints

hen t

W

received, t
pattern is d
figure. T
playback p

That c

SKIP C

Check for any obstacle between the

remote c
sensor w

Maybe b

batteries w

Check f

Please c

positionof t
building or m
phenomenon. A h
antenna m

Check whether all the picture adjustments

have been properly performed.
Enter i
menu to s

he VCR test signal (TSG) is

he lower side of the test

istorted as shown in the

his is not a malfunction and the

icture is not influenced by it.

hannel may be locked out with

HANNEL function.

ontrol and the remote control

indow .

atteries are dead. Try replacing

ith new ones.

or incorrect battery orientation.

hange the direction, height or

he antenna. Reflections from

ountains might cause this

ighly directional

ay improve the reception.

nto the (Picture mode) inside the

elect a different picture set-up.