TV3K - TXT

COLOUR TELEVISION RECEIVER

SERVICE MANUAL

SECIFICATION

z SYSTEM PAL/SECAM,B/G,I.
z POWER INPUT AC 170-245V(50/60Hz)
z POWER CONSUMPTION 60W
z AERIAL IMPEDANCE 75OHM UNVALANCED
z TUNER VOLTAGE SYNTHESIZER TUNING
z RECEIVING CHANNELS VHF-L E2-S6
VHF-H S7-S41
UHF E21-E69
z PROGRAMME MAX.99 PROGRAM MEMORIES
z PICTURE TUBE 14”,20”,21”;90°
z SOUND OUTPUT 2.0W
z SPEAKER 3W 8 OHM
z AV JACKS FULL SCART ×1

CAUTION

: Before servicing the chassis, read the “Safely Precaution”.

“X -Ray radiation Precaution” and “Product Safety Notice” in this manual.

X-RAY RADIATION PRECAUTION

1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To

Avoid such hazards the high voltage must be specified limit. The normal value of the
high voltage of this receiver is 24.5KV +/-2KV under 230V AC power source. The
high voltage must not exceed 27KV.

2. Each time a receiver requires servicing the high voltage should be checked following

the HIGH VOLTAGE CHECK procedure in this manual. It is recommended the
reading of the high voltage be recorded as a part of the service record. It is
important to use an accurate and reliable high voltage meter.

3. The primary source of X -RAY RADIATION in this TV receiver is the picture tube. For

continued X-RAY RADIATION protection, the replacement tube must be exactly the
same type tube as used in this TV receiver.

4. Some parts in this receiver have special safety-related characteristics for X-RAY

RADIATION protection. For continued safety, parts replacement should be
undertaken only after referring the PRODUCT SAFETY NOTICE below.

SAFETY PRECAUTION

WARNING: Service should not be attempted by anyone unfamiliar with the necessary
Precautions on this receiver.
The following are the necessary precautions to be observed before servicing this
chassis.
1. Since the power supply circuit of this receiver is directly connected to the AC

power line. An isolation transformer should be used during any dynamic service to
avoid possible shock hazard.

2. Always discharge the picture tube anode to the CRT conductive coating before

handling the picture tube. The picture tube is highly evacuated and if broken, glass
fragments will be violently expelled. Use shatterproof goggles and keep picture tube
away from the unprotected body while handling.

3. When replacing a chassis in the cabinet, always be certain that all the protective

devices are put back in place, such as: nonmetallic control; knobs, insulating covers,
shields, isolation resistor-capacitor, network, etc.

4. When replacing parts or circuit boards, disconnect the power cord.
5. When replacing a high voltage resistor (metal oxide resistor) on circuit hoard,

keep the resistor APP. 10mm(1/2 in.) away from circuit board.

6. Connection wires must be kept away from components with high voltage or high

temperature.

7. If any fuse in this TV receiver is blown, replace it with the FUSE specified in the

chassis parts list.

8. The receiver is designed to operate with 230V(50Hz) AC mains.

PRODUCT SAFERY NOTICE

Many electrical and mechanical parts in this chassis have special safety-related
characteristics are often passed unnoticed by a visual inspection and the X-RAY
RADIATON protection afforded by them cannot necessarily be obtained by using
replacement components rated for higher voltage. The use of substitute replacement
parts that do not have the same safety characteristics as specified in the parts list may
create shock, fire, X-RAY RADIATION or other hazards.

GENERAL ADJUSTMENT

AUTOMATIC DEGAUSSING

An automatic degaussing coil is attached around the picture tube, degaussing the tube
properly in about one second after the set is switched on. If the receiver is moved or
faced on a different direction, the power must be switched off at least 15 minutes in
order that the automatic degaussing circuit operated properly. External degaussing is
necessary if the automatic degassing proves ineffective after the set is moved.

B+ ADJUSTMENT

C

AUTION: To avoid X-ray hazards and result in a nominal display width, B+ voltage

must be set in the scale of 108.0V+/-0.5V.

1. Make sure the AC power supply is 230V, 50Hz.
2. Switch on the TV receiver, tune in an active channel.
3. Measure the voltage between C641 on Main P.C. Board by DC voltmeter.
4. Set contrast, brightness, color to maximum.
5. Adjust VR631 on Main P. C. Board for B+108.0V+/-0.5V voltage reading.

HIGH VOLTAGE CHECK

C

AUTION: There is no high voltage adjustment in this chassis, B+108V voltage

directly relates to the high voltage. The high voltage does not exceed 27KV under any
conditions.
1. Connect an accurate high voltage meter to the second anode cap of the picture

tube.

2. Turn on the receiver, set brightness and contrast to minimum (Zero beam current).
3. Make sure the high voltage does not exceed 27KV.
4. NO matter whether the luminance, contrast and chrominance controls are set to

maximum or minimum, the high voltage must be kept under 27KV.

FOCUSING

Receive a TV test pattern signal; adjust controls for optimum picture. Adjust Focus
Control for a well-defined, sharpest display in the center area of the screen.

ADJUSTMENT AND SERVICING THE CHASSIS

SERVICE MODE

To enter the service mode, a special remote control which contains an additional
SERVICE key must be used. See the illustration. Press the ‘SERVICE’ key on remote
control, TV will display service menu as following table 1 line by line. To select the
parameter by using the ‘P+/P-’ keys. To adjust the selected parameter by using the
‘V+/V-’ keys. To quit the service mode, press the ‘P.P.’ key on remote control when in
the service mode.

Table 1

Parameter

Value

Red Gain

32

DC Red

063

Green Gain

32

DC Green

063

Blue Gain

32

DC Blue

063

Apr Threshold

12

Logo

6------------

To enter the table 2, press the ‘OK’ key for
the first time on the remote control when in
the service mode.

Table 2

Parameter

Value

Tuner AGC

22

H position

32

VPOS 50

10

VPOS 60

10

VAMP 50

47

VAMP 60

53

Bright max

63

Bright min

00

Sub Tint

32

VCO Coarse

05

VCO Fine

063

VCO Coarse L1

05

VCO Fine L1

080

To enter the table 3, press the ‘OK’ key for
the second time on the remote control
when in the service mode.

Table 3

Parameter

Value

AGC gain

00

Option 1

48

Option 2

00

Option 3

06

Option 4

09

Option 5

00

ST Ttext

00

H POS OSD

001

V POS OSD

01

H POS TXT

057

V POS TXT

04

Following are the items of the OPTIONS in
more details.
OPTION1:
B5=P/N/S Crystals application (0=2
crystals, 1=1 crystal)
B4=Cutoff Loop (0= OFF, 1=ON)
B3=Safety_Reset (0=Active, 1=non)
B2=Super Tuner (0=OFF, 1=ON)
B1=Sound Demodulation

(0=

Intercarrier/MONO, 1=QSS/NICAM)

1

5

9

-/--

6

7

8

¢

ñ ¢

ò

/

2

3

4

B0=Logo Display (0=OFF, 1=ON)
OPTION2: (It’s better to keep the default setting option2=0)
B5=Half_Contrast (0=OFF, 1=ON)
B4=Color 6db (0=OFF, 1=ON)
B3=APR Feature (0=ON, 1=OFF)
B2=Black Stretch (0=ON, 1=OFF)
B1=Auto Flesh (0=ON, 1=OFF)
B0=Coring (0=ON, 1=OFF)
OPTION3:
B5=AVL (0=OFF, 1=ON)
B4=PIF Over modulation (0=OFF, 1=ON)
B3=Market_France-SECAM L/L’ (0=OFF, 1=ON)
B2=Manual/Auto Cutoff (0=Manual, 1=Auto Cutoff)
B1=Mute pin Low/High To control the speaker (0=Low, 1=High)
B0=TDA7449/TDA7439 (0=TDA7449, 1=TDA7439)
OPTION4:
B4=SCART2 (0=OFF, 1=ON)
B3=RGB (0=OFF, 1=ON)
B2=SVHS (0=OFF, 1=ON)
B1=AV2 (0=OFF, 1=ON)
B0=AV1 (0=OFF, 1=ON)
OPTION5 and ST Ttext is for teletext setting only. It normally could not be changed. If
it’s necessary to adjust the OPTION 5, please read the following information before
adjustment.
A. For CPUs with English, French, German, Polish or English, French, German, Turkish,

Please refer to the setting as below.

1. If OPTION 5 = 00, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH,
TURKISH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded.
2. If OPTION 5 = 02, then the TEXT languages like "POLISH, FRENCH, ESTONIAN,
CZECH, GERMAN, SERBIAN, LETTISH, RUMANIAN " can be decoded.
3. If OPTION 5 = 04, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH,
CZECH, GERMAN, PORTUGUESE, LETTISH, RUMANIAN " can be decoded.
4. If OPTION 5 = 06, then the TEXT languages ENGLISH, FRENCH, SWEDISH, TURKISH,
GERMAN, PORTUGUESE, LETTISH, RUMANIAN can be decoded.
B. For coming new OTP/CPU with English, Russian, Czech, Polish, the setting of the OPTION
5 will be changed as below.
1. If OPTION 5 = 00, then the TEXT languages like "ENGLISH, FRENCH, SWEDISH,
CZECH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded.
2. If OPTION 5 = 02, then the TEXT languages like "ENGLISH, RUSSIAN, SWEDISH,
TURKISH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN " can be decoded.
3. If OPTION 5 = 04, then the TEXT languages like "POLISH, RUSSIAN, SWEDISH,
CZECH, GERMAN, SERBIAN, ITALIAN, RUMANIAN " can be decoded.
4. If OPTION 5 = 06, then the TEXT languages like "POLISH, RUSSIAN, SWEDISH,
CZECH, GERMAN, PORTUGUESE, ITALIAN, RUMANIAN can be decoded.
Normally, it is supposed not to set OPTION 5 = 01. If you set the OPTION 5 = 01, then the font
can be switched by press key MENU on remote control in TEXT mode for TV3K. If you set
OPTION 5 = 00, 02, 04, 06, then there is no any activity while press MENU in TEXT mode.
Please check.

A.F.C. ADJUSTMENT

Removing any R.F. signal source and prevent any stray signal source from entering
the tuner by shorting the tuner input inner contact to the out screen.
Inject the 38.9 MHZ carrier into the tuner IF output pin (pin 11).Select the parameter
‘VCO Coarse’ in the service mode (see Table 2).The ‘VCO Status…’will appear on the
screen. Then press the ‘AV’ key on remote control, the CPU will adjust automatically
until the ‘VCO Status OK’ appears on the screen. If this can not be achieved, i.e. there
is no any pattern on the screen, please adjust the T201 first until a stable pattern

appears on the screen. And then press the ‘AV’ key on remote control. The CPU will
adjust automatically once again until the ‘VCO Status OK’ appears on the screen.

GEOMETRY

To adjust the picture position and vertical size, select the appropriate parameter in the service
mode and adjust as necessary. Please see table 2.

Remote control

29

DIRECTIVTY 6m(MIN)

8m(NOR
)

OK

30

DIRECTIVTY 30°FROM LIGHT AXIS 5m(MIN)

7m(NOR
)

OK

C314
10n 1K6V M(14"21")/11n 1K6V M(20")

C310

47n/M

Q301
2SC2383

Q302

2SD1651

R309

8K2(14")10K(20"21")

T301

JDT1924

C242 10uF 16V

C122 0.1uF/M

C244

10uF 16V

R215

4K7

R216

27K

C243

10uF 16V

R300

4K7

C208

22uF 50V

1

2

3

4

5

6

7

8

9

10

11

IC301

TDA8174A

L301

HL105uH

C312

2.2uF 160V

C311

0.47uF 200V M(14")/0.33uF 200V M(20"21")

R323

10K

R304
150K

R303
150K

R319

4K7

R324
180

R329
3K3

R320

2E2

R318

1K8

C324
0.1uF/M
R327

2E2

C325

100uF 35V

D301

1N4002

7

T302

BSC25-3604L

R310

1/0.5W

C309

47n/M

C304
0.1uF/M

D307

1N4148

R307

1K

C317
470P 500V

D304 RGP15J

SV

FV

HV

R328
680

D351

1N4148

D305

RGP15D/1N4937

R326
270/0.5W

C326

1000uF 25V

C323

22uF 16V

R325

22K

C215

47uF 16V

XP202

XS202

+8V

F

L

Y

V

V

C

C

1

V

P

V

ou

t

B

C

G

N

D

P

O

W

E

R

V

C

C

2

V

.S

Y

N

C

I

N

V

A

M

P

R316

E47/0.5W

R302

27/0.5W

Q351

2SC1815Y

R352
3K9

R353

12K

R351
100K

C352

1uF 50V

+8V

C306

220uF 35V

+5V

+110V

Q101
2SA1015Y

Q102
2SA1015Y

Q103
2SA1015Y

R120
2K7

R121
2K7

R122
2K7

D105

1N4148

D102

1N4148

D103

1N4148

R125
4K7

R123
2K7

R124
2K7

C108
0.1uF

C117

0.22uF/M

Q106
2SC1815Y

1

2

3

4

5

6

7

8

IC102

ST24C08

C107
0.1uF

R

G

B

+5V

I R

+5VA

C128

22uF 16V

R110

4K7

R128
6K8

R109

10K

R105
4K7

+5VA

R111
4K7

R112

6K8

R106
4K7

C106

100uF 16V

R103
5K6

R104 6K8

C104
220p

C140

0.1uF

C102

4n7/M

C101

22pF

+5VA

R101 5K6

L101
10uH

ST92195

IC101

R137

820

R268
27K

C

26

3

4n

7/

M

C268
0.1uF/M

X

20

1

4.

43

M

H

z

C269
18pF

C271
0.1uF

R116

15K

C109

2n2/M

C141

0.01uF

C111

82PF

C112

0.47uF 50V

R119 5K6

C114

4n7/M

C126

22pF

C142

0.01uF

+5VA

X101

4M

C116

39pF

C115

39pF

R126
1K

R140
39K

Q104

2N3904

+33V

+5VA

R130

33K

R131
22K

R132
33K

C120
0.1uF/M

C121

0.1uF/M

R133

33K

R127 1K

R143

1K

R142 470

R141 680

C

20

9

0.

33

uF

/M

C211
1n

R212

150

1

4

5

10

C225

0.1uF

C227

0.1uF

C226

0.1uF

R225

75

R226

75

R227

75

R228

75

R333
8M2

B

G

R

FB

SDA

SCL

C300

47n/M

+25V

R314

15K

R301

39

C307

10uF 250V

C105

10uF 16V

R129

10K

R118 10

R117

10

+5VA

FBi

Ri

Gi

Bi

VD

T

U

N

E

R

A

G

C

T

U

N

E

R

A

G

C

FLYB

H

D

IF

V

T

B

S

W

2

B

S

W

1

CVBS.TXT

BSW2

BSW1

VS

HS

C129

0.01uF

V0L

S-SW

ON/OFF

V

A

M

P

BCL

VAMP

+5VA

ICA

C100
100P

C241
1n

AGC

VT

BC

BB

BA

VM

IF2

IF1

TU201

UVC2810-VEEA

P+

P-

MENU

S

IF

I

N

ALTERNATIVE CRTS

C302

220uF 16V

C305

10uF 16v

D311 1N4002

D310 1N4002

+25V

+15V

1

R312 1K/1W

D302 RGP15J

R311

10K/0.5W

R157

10K

D107

1N4148

O

N

/O

F

F

R135

10K

+5VA

S0

R102

10

C110
10uF 16V

C113

10uF 16V

D106

LED

3

11

10

1

2

C239
47P

R805

560

C825

47P

C247

0.1uF

R138
1K5

D253
1N4148

XS302

XP302

X

20

2

3.

58

M

H

z

C270
18pF

CRT

14 INCH CRT

C

52

1

47

00

pF

2

K

V

R516
100

R518

330

Q506

BF422

C515
470pF

C

51

6

68

0p

F

5

00

V

D

50

8

1N

40

07

R519

1K2/0.5W

R520
10K

1

R521
2K2/0.5W

C

51

1

68

0p

F

5

00

V

D

50

4

1N

40

07

1

R515

2K2/0.5W

C

51

7

68

0p

F

5

00

V

D

50

1

1N

40

07

1

R506
2K2/0.5W

Q507

BF423

+8V

+8V

R508

4K7

Q503

2SA1015Y

R509

100

C506

100uF16V

R510
100

R512
330

Q504

BF422

C510
470pF

R513

1K2/0.5W

R514
10K

Q505

BF423

R502

100

R504

330

Q501

BF422

C505
470pF

R501

1K2/0.5W

R505
10K

Q502

BF423

2

R522

10K/2W

2

R523

10K/2W

2

R524

10K/2W

D503

5V6

R507

47K

XP305

XS305

4

1

2

1

4

5

8

9

10

11

12

14

13

7

6

T603

BCK-35-26

Q613

2SD1710

2

R625

68/2W

C616

680pF 2KV

R630

5M6/0.5W

R629

5M6/0.5W

C629

2200PF 400VAC

Q612

2SC3807

C617

22n/M

2

R624

68

C615

15n/M

R615

22K

R622
15K

R621

120K/0.5W

R620
120K/0.5W

R619

22

C614
0.1uF/M

R617

3K3

IC615

TLP621

C613

4n7/M

D603

1N4007

C603

1n 1KV

C607

100uF 400V

D614

1N4148

D617

ES1/RGP10G

D616

1S1555

R611

5K6

Q611

2SA1015Y

5

R602

3E9/5W

RT601

MZ73 K18RM270

T601

ET2868

C601
0.22uF/250VAC

F601

T3.15A

SW602

KDCA11-WMO-P

XP601

XS601

XS602

L606

DEGAUSSING

C634
680pF 500V

D634

RGP15D/1N4937

D631

RG2

C631
470pF/1KV

C633

1000uF 25V

C641

100uF 160V

Q631

2SC1815Y

R635

150K

R636

8K2

VR631

2K

D641

6V2

R637
100K

R639

12K

1

R638

27K/0.5W

Q686

2SA1015Y

R689
22K

R688

10K

R686
300K

R687

270K

Q685

2SC1815Y

C685

1uF 50V

D685

6V2

R642

15K

R626
2K7

+33V

+108V

2

R

60

8

12

K

/2

W

IC604

UPC574

C608
1uF 50V

Q609

B892

R647

1K/0.5W

+8V

Vout

G

N

D

Vin

IC601

7805

+5VA

C

60

2

0.1

uF

/2

50

V

A

C

D

61

9

M

T

Z

11

C

R623

2K7

1

2

4

3

C636

0.1uF

C654

470uF 25V

C652

100uF 25V

Vout

G

N

D

Vin

IC602 7805

Vout

G

N

D

Vin

IC603

7808

C653

10uF 16V

C656
10uF 16V

+5V

+25V

C327
0.1uF

R648

10/1W

1

R399 2E2 2W(14"20")/6E8 1W(21")

C333

220uF 35V

1

2

XP600

POWER CORD

XS600

D604

1N4007

D605
1N4007

D606
1N4007

R650

18E/5W

XS301

XP301

V-DY

H-DY

C605
1n 1KV

C604

1n 1KV

C606

1n 1KV

C627

0.1uF

SAW

SF201

K6257K

1

R330
330/1W

R334
1/0.5W

+15V

+15.2V

R321

180K/0.5W

R281

100

R

52

6

22

E

K101

2

1

3

IC103

HS0038A2

+5VA

K102

K103

K104

K107

K105

K106

R144

1K5

R145

120

R146

270

R147

2K2

R463

10K

R462

680

R152

22K

C470
0.1UF

C410

470UF/25V

C466

330PF

C471
0.1UF

C468

0.1UF

C467

470UF/16V

SPEAKER

+18V

XS401

XS402

R151

4K7

R460
3K3

R468
6K8

R464

4.7

C463
10uF

C462
1UF

C472
47UF

C475

100PF

C465

47n/M

C474
10UF

C461

1000pF

C464

10uF

+18V

C802
10n

C

80

1

10

uF

C

80

3 1

0n

C

80

5

22

0n

C808

10p

C809
10uF

C815

10n

C

81

1

1n

C816

10uF

C

81

2

10

uF

C819

22p

C822
0.1uF

C817

10uF

C820

22p

R803

220K

R804

20k

X801 27M

Q802 2SA1015

C821

10n

C818

100n/M

S

IF

I

N

C823

10u

R431

1K

R467
10K

S

C

L

S

D

A

R801

39

R830
100

R831

100

C473
0.1UF

L802
22UH

C

80

4

10

n

L401
100UH

C

81

0

10

uF

L214

8.2uH

L212

8.2uH

C831

10uF

C832

10uF

C291

1n

C297

1n

L211
8.2uH

L213
8.2uH

C437

1UF

C442

1UF

R210

100k

R410
220

A

R

O

T

V

A

R

I1

A

L

I1

A

L

O

T

V

S

-S

W

G

i

R

i

F

B

i

V

ID

E

O

I

N

2

B

i

1

42

22

21

11

32

41

40

39

38

37

36

35

34

33

10

9

8

7

6

5

4

3

2

12

13

14

15

16

17

31

30

29

28

27

26

25

24

23

20

19

18

A

V

C

C

A

R

O

A

L

O

A

V

5A

S

R

O

S

L

O

C

A

P

7

R

S

T

N

C

N

C

N

C

N

C

N

C

C

A

P

1

C

A

P

2

A

R

IN

A

L

IN

G

N

D

4

S

R

IN

S

L

IN

C

A

P

8

M

IN

M

O

U

T

G

N

D

3

A

V

5B

C

A

P

6

S

IF

C

A

P

5

G

N

D

2

D

V

R

E

G

C

A

P

3

N

C

S

C

L

S

D

A

N

U

X

IN

X

O

U

T

G

N

D

1

D

C

L

N

C

N

C

IC801

STV8203A

A

U

D

IO

O

U

T

L803

22UH

D410

11V

1

2

3

4

5

6

7

8

9

V

C

C

1

IN

M

U

T

E

V

O

L

F

IL

T

E

R

F

B

G

N

D

O

U

T

V

C

C

2

IC411

AN5265

R493

10K

R492

680

C496
330pF

C497

470UF/16V

R494
4.7

C493
10uF

C492
1UF

C472

0.1uF

C495

47n/M

C491

1000pF

C494

10uF

+12V

R432

1K

1

2

3

4

5

6

7

8

9

V

C

C

1

IN

M

U

T

E

V

O

L

F

IL

T

E

R

F

B

G

N

D

O

U

T

V

C

C

2

IC412

AN5265

Q410

2SC1815

Q411
2SC1815

R469

22K

R470

10K

R471
6K8

R472

6K8

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

-E

VEE

S0

1Y3

GND

S1

1Y0

2Y1

2Y0

VCC

1Y2

2Y2

2Z

2Y3

1Z

1Y1

IC401

4052

A

L

O

T

V

A

R

O

T

V

S

0

A

R

O

T

V

A

R

/O

U

T

A

R

I1

A

L

O

T

V

A

L

/O

U

T

A

L

I1

A

R

O

U

T

M

U

T

E

VOL

M

U

T

E

A

L

O

U

T

V

ID

E

O

O

U

T

Q425

2SC1815

C476

0.1UF

C499
47UF

Q423

2SC1815

Q424
2SC1815

Q420

2SC1815

Q421

2SC1815

C420

10UF

C422

10UF

R425
10K

R421

22K

R420

10K

S

0

R428

1K

R429

1K

R435

1K

R436

1K

+8V

VT

SAW1

XS411

XS412

RCA1-1

RCA1-2

RCA1-3

RCA2-1

L410

8.2UH

L411

8.2UH

R485
220

R486
100K

R487

220

R488
100K

C478

1UF

C479

1UF

XS410

RCA2-3

RCA2-2

AL1I

AR1I

VIDEO IN2

ALOUT

AROUT
VIDEO OUT

Q428

2SC1815

Q426

2SC1815

A

S

W

3

A

L

I2

A

R

I2

V

ID

E

O

I

N

3

D413
1N4148

Q427
2SA1015Y

R497
10K

D412

1N4148

C469
470uF/25V

1

R631

1/1W

2

R446
2E2/2W

D635

RGP15D/1N4937

C632 470pF/500V

C635
1000uF25V

R640

1K/0.5W

Q632

B892

GND

+18V

C201 1n

SAW

SF202

K9650M

R286 22K

R283
2K2

R284
10K

R282

6K8

R285
2K2

Q281

2SC1815Y

D281
1N4148

S

A

W

1

C284 1n

R200

22K

R290
2K2

R289
10K

R288

6K8

R287

2K2

Q282

2SC1815Y

D282
1N4148

+8V

SAW2

1

2

3

4

5

SAW2

IF

R306

68/0.5W

R308

100/0.5W

OK

V-

V+

AV

+5VA

+12V

Q107

2SC1815Y

R159

3K3

R158

2K2

R134

10K

+12V

D108

1N4148

MUTE

C281

6P8

TV

AV1/RGB

+5V

R422
6K8

R426

10K

Q422

2SC1815

R461
22K

+5V

+8V

+15V

+5V

+12V

C360

47uF 160V

L600

GL100uH

D101
3V9

R114

470

+5VA

Q105
2SA1015Y

R100

270

R136

100K

D100

1N4148

R115
4K7

C119
1uF 50V

C118 47pF

C824
56pF

L804
10uH

C498

22uF/25V

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

S

IF

I

N

1

S

IF

I

N

2

A

G

C

(S

)C

A

P

V

re

fif

A

G

C

(P

)C

A

P

P

IF

I

N

1

P

IF

I

N

2

R

A

G

C

O

U

T

IF

P

L

L

IF

G

N

D

A

M

/F

M

O

U

T

/S

C

IF

V

C

C

C

V

B

S

O

U

T

E

X

T

A

U

D

IO

I

N

P

IF

IC

1

P

IF

L

C

2

V

C

C

2

C

V

B

S

I

N

1

G

N

D

2

C

V

B

S

I

N

2

B

S

Y

/C

V

B

S

I

N

3

C

H

R

T

ex

t

B

E

X

T

/U

E

X

T

G

E

X

T

/Y

E

X

T

R

E

X

T

/V

E

X

T

F

B

E

X

T

N

C

B

O

U

T

G

O

U

T

R

O

U

T

IC

A

T

H

B

O

S

D

F

M

C

A

P

A

U

D

IO

O

U

T

G

N

D

D

V

C

C

D

S

D

A

S

C

L

S

L

P

F

L

F

B

/S

S

C

H

O

U

T

V

E

R

T

B

C

L

/S

A

F

V

C

C

1

C

V

B

S

O

U

T

1

G

N

D

1

X

1/

V

A

M

P

/C

H

R

O

U

T

C

JP

F

X

T

A

L

1

X

T

A

L

2

X

T

A

L

3/

B

T

U

N

F

B

O

S

D

/H

C

R

O

S

D

G

O

S

D

IC201

STV2246/2248

KB INPUT

NC

VS OUT

STDBY LED

STDBY LED

XTAL

XTAL

VOL(N)

VOL

NC

SAW_SW2

NC

SAW_SW1

BSW2

BSW1

VSYNC

HSYNC

AVDD1

PXFM

JTRET0

GND

AGND

TELETEXT

WSS

JTMS

AVDD2

CVBS0

TXCF

JTCK

MCFM

TEST0

AVDD3

WSCR

WSCF

JTDO

VDD

SCL

SDA

FB

R

G

B

NC

NC

S1(N)

S0(N)

S0

S1

S_SW

DESIGN

ON/OFF

NC

MUTE

NC

REST

IR IN

49

56

55

1

54

2

52

3

53

4

51

5

50

6

48

7

47

8

46

9

45

10

44

11

43

12

42

13

41

15

40

14

39

16

38

17

37

18

36

19

35

20

34

21

33

22

32

23

31

24

30

25

29

26

28

27

IC101

ST92195

C

20

5

1u

F

5

0V

C207

0.022uF

C206

1uF 50V

C260

1n

C261

1n

C262
1n

R

25

1

10

0

R

25

2

10

0

R

25

4

2K

2

R

25

3

15

K

R209
10K

C248

0.1uF

C

25

4

4n

7/

M

C228

1uF 50V

C

22

9

10

uF

1

6V

C249

100uF 16V

C255

2.2uF 50V

C257

470uF 16V

C256

0.1uF

C

20

5

1u

F

5

0V

C207

0.022uF

C206

1uF 50V

D

25

1

1N

41

48

R258 56K

R259 2K2

R255 8K2

D255

5V1

R257

1K

D252

1N4148

R256

10K

+5V

D254

1N4148

R275

10K

C

25

9

4.

7u

F

5

0V

S

D

A

S

C

L

+8V

A

U

D

IO

O

U

T

B

C

L

H

S

F

L

Y

B

H

D

V

D

C

V

B

S

.T

X

T

V

S

L

25

2

1u

H

L202
10uH

R276

1K5

C260

1n

C261

1n

C262

1n

C253

1n

C245

1n

R

25

1

10

0

R

25

2

10

0

R

25

4

2K

2

R

25

3

15

K

R209
10K

C248

0.1uF

C

25

4

4n

7/

M

C228

1uF 50V

C

22

9

10

uF

1

6V

C249

100uF 16V

C255

2.2uF 50V

C257

470uF 16V

C256

0.1uF

+5V

C

20

5

1u

F

5

0V

C210

10uF 16V

C207

0.022uF

C206

1uF 50V

C

21

3

0.

1u

F

C212

47

uF

1

6V

L208

C219

470uF 16V

C217
0.1uF

C221

1uF 50V

R224
330K

C224

1uF 50V

C220

1uF 50V

R230

75

C218

1uF 50V

R217

1K5

R218
1K5

Q203

2SC1815Y

+8V

R219

470

D

25

1

1N

41

48

R258 56K

R259 2K2

R255 8K2

D255

5V1

R257

1K

D252

1N4148

R256

10K

+5V

D254

1N4148

R275

10K

C

25

9

4.

7u

F

5

0V

S

D

A

S

C

L

C235

1uF 50V

R231
75

R213

120

L207

6.8UH

Z201

5.5MHz

Z202
6.5MHz

+8V

V

ID

E

O

I

N

1

A

U

D

IO

O

U

T

B

C

L

H

S

F

L

Y

B

H

D

V

D

C

V

B

S

.T

X

T

V

S

A

U

D

IO

I

N

L

25

2

1u

H

L202
10uH

C214

22uF 16V

V

ID

E

O

I

N

2

C222

10uF 16V

R220

75

V

ID

E

O

O

U

T

L209

1uH

+8V

R276

1K5

L201
10uH

C260

1n

C261

1n

C262

1n

C237

1n

C253

1n

C245

1n

R

26

5

1K

R

26

6

1K

R

26

4

1K

R270
56

R271

56

R272
56

R273

1K

R

27

4

47

K

C264

0.1uF

C265

0.1uF

C266
0.1uF

R

26

2

1K

R

26

1

1K

R

26

3

1K

F

B

R

G

B

R

26

9

7K

5

C295

1n

R411
220

R211

100K

C296

1n

R404
1K

C293

1n

C293

1n

R402
470

C290

1n

R403

1K

C292

1n

R401

470

NOTE: 1, IS MARK OF CRITICAL COMPONENT; 2, SUBJECT TO CHANGE WITHOUT NOTICE.

1

2

3

4

5

6

7

8

9

11

13

15

16

17

18

19

20

21

14

12

10

AR/O

AR/I

AL/O

AL/I

B/I

STATUS

G/I

R/I

FB/I

V/O

V/I

XS200

SCART

PDF created with FinePrint pdfFactory Pro trial version

http://www.fineprint.com