Daewoo DTY-2896 TF Manuale utente

Service Manual

59 / 66 / 68 Cm STEREO Colour Television

CHASSIS : CP-775

DAEWOO ELECTRONICS CO., LTD.

http://svc.dwe.co.kr July,1999

MODEL:

DTY-2896 TF / TU / TA / TFF / TUF / TAF / TK / TKF

DTY-2898 TF / TU / TA / TFF / TUF / TAF / TK / TKF / TFC

DTY-28G6 TF / TU / TA / TFF / TUF / TAF / TK / TKF

DTY-28G7 TF / TU / TA / TFF / TUF / TAF / TK / TKF

DTY-28G2TFF / TUF / TAF / TKF

DTY-2594 TKF / TUF / TAF / TFF / TUF / TFC

DTY-25G1 TKO / TFO

DTY-29G1 TKO / TFO

S/M No: CP775P-012

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CONTENTS

Specifications ................................................................................................................1

Safety Instruction .........................................................................................................3

Circuit block Diagram ..................................................................................................4

Alignment Instructions ...............................................................................................5

IC Description ................................................................................................................10

IC DC Voltage charts.....................................................................................................38

Circuit Description ........................................................................................................42

PCB Layouts

§§

PRINTED CIRCUIT BOARDS ......................................................................................51

§§

SCHEMATIC DIAGRAM................................................................................................52

Mechanical Exploded View and Parts List ...........................................................54

Electrical Parts List ......................................................................................................56

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§Specifications

CRT 25” : A59EAK071X11 (PHILIPS)

28” : A66EAK071X11 (PHILIPS)

System TF : PAL - B/G for West Europe, NTSC-3.58 / 4.43 (Play back)

TA : PAL - B/G, SECAM-L/L’ for France, NTSC-3.58 / 4.43 (Play back)

TU : PAL- I for U.K, NTSC-3.58 / 4.43 (Play back)

TK : PAL/SECAM - B/G, D/K, NTSC-3.58/4.43(play back) for East Europe & CIS

Main Voltage 230V AC, 50Hz

Power Consumption Stand-by mode : 10 Watts

Normal operating mode : 25” = 75 Watts

28” = 75 Watts

29” = 75 Watts

Sound output 5 + 5 Watts, 10 % THD at RF 60 % mod. (1

KHz

)

Speaker 12W 4 ohm x 2 EA

Antenna 75 ohm unbalanced input

Impedance

Tuning system VS( voltage synthesis ) tuning

Tuner 3303KHC (TF, TA, TK, TI Model)

BAND I : CH2 - CH4

BAND III : CH5 - CH12

CABLE BAND : S1’ - S3’ , S1 - S20

HYPER BAND : S21 - S41

BAND IV, V : CH21 - CH69

DT2-IV17D (TU Model )

BAND IV, V : CH21 - CH69

Number of 70 programs

program

Aux. Terminal 21 pin EURO-SCART jack ( AV input, TV output, RGB input )

21 pin EURO-SCART jack ( AV input, S-VHS input )

RCA type AV input jack

Headphone jack (3.5 mmø)

Remote controller R-28B03 or R-35D05 with 2 “AA” type batteries

Teletext 8 pages memory TOP & FLOF

- West option :English, German/Dutch/Flemish, French, Italian,

Spanish/Portuguese, Swedish/Finnish/Danish, Czech/Slovak

- East option : Polish, Czech/Slovak, Rumanian, Hungarian, Servo-croat,

German/Dutch/Flemish, French, Italian

- Turkish option : Turkish, English, German/Dutch/Flemish, French,

Italian, Spanish/Portuguese, Swedish/Finnish/Danish

- Cyrillic option: Russian, Lettish/Lithuanian, Estonian, Ukranian,

Czech/Slovak, Servo-croat, English

OSD language -East,West,Turkish Version : English,French,German,Italian,Spanish

-Cyrillic Version : Russian, English, German

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4. WHITE BALANCE

1) Set the TV to NOR I mode.

2) Set the R,G,B LEVEL to CENTER with R,G,B UP/DOWN KEY .

3) Adjust the R,G,B UP/DOWN KEY of the other color which did not appear

on the screen to obtain WHITE.

5. FOCUS

1) Apply a RETMA PATTERN signal.

2) Adjust the FOCUS VOLUME on FBT to obtain optimal resolution.

6. GEOMETRY

6.1 VERTICAL CENTER

1) Set the TV to NOR I mode.

2) Pressing the V-CENTER UP/DOWN KEY, the

lower half of the screen is blanked.

3) Adjust the border line of blanked picture

coincident with the mechanical center marks

of the CRT using the V-CENTER UP/DOWN KEY.

6.2 VERTICAL SIZE

ƒRThe VERTICAL CENTER adjustment

has to be done in advance.

1) Apply a RETMA PATTERN signal.

2) Set the TV to NOR I mode.

3) Adjust the upper part of the picture

with the V-SIZE UP/DOWN keys.

6.3 VERTICAL SLOPE

ƒRThe VERTICAL SIZE adjustment

has to be done in advance.

1) Apply a RETMA PATTERN signal.

2) Adjust the lower part of the picture

with the V-SLOPE UP/DOWN keys.

6.4 VERTICAL S-CORRECTION

1) Apply a CROSSHATCH PATTERN signal.

2) Adjust the S-COR UP/DOWN KEY to obtain

the same distance between horizontal lines.

6.5 HORIZONTAL CENTER

1) Apply a RETMA PATTERN signal.

2) Adjust picture centering with CENTER

LEFT/RIGHT keys.

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THE DIFFERENT PARTS FOR CRT (CP-775)

No LOC. NAME 28” (V/COLOR 28”(PHILIPS) 25”(PHILIPS) 25”(ORION) 29”(ORION) 25”(TESLA) 28”(TESLA)

1 C402 C MYLAR 1.6KV 7200PF

¤N ¤N

1.6KV 7500PF

¤N

1.6KV 7200PF

¤N

CMYH3C722J CMYH3C752J CMYH3C722J

2 C404 C MYLAR 1.6KV 4700PF

¤N ¤N ¤N

1.6KV 8200PF 1.6KV 4700PF

¤N

CMYH3C472J CMYH3C822J CMYH3C472J

3 C408 C MYLAR 400V 0.3MF 400V 0.27MF

¤N

400V 0.33MF 400V 0.51MF 400V 0.27MF 400V 0.3MF

CMYE2G304J CMYE2G274J CMYE2G334J CMYE2G514J CMYE2G274J CMYE2G304J

4 D406 DIODE BYW95C

¤N ¤N ¤N

X BYW95C

¤N

DBYW95C - - - DBYW95C - - -

5 J802

WIRE COPPER

¤N ¤N ¤N

AWG22 1/0.65 TIN COATING

¤N

85801065GY

6 R333 R C-FILM 1/4W 2K OHM 1/4W 3K OHM

¤N

1/4W 2.7K OHM F

¤N

1/4W 3K OHM

¤N

RD-4Z202J - RD-4Z302J- RN-4Z2701F RD-4Z302J-

7 R919 R FUSIBLE 1W 0.47 OHM 1W 3.3 OHM

¤N ¤N ¤N

1W 2.2 OHM

¤N

RF01Z478K - RF01Z339J - RF01Z229J-

8 V901 CRT

A66ECY13X611 A66EAK071X11 A59EAK071X11

A59KTB96X01 P38 A68KTB190X006 P38 A59EMZ43X07 A66EMZ43X07

A59KTB98X01 M50 A68KTB192X006 M50

4859613360 4859622160 4859622260 4859608962¤NP38 4859618060

¤N

P38 4859627460 4859627560

4859609161¤NM50 4859618460

¤N

M50

9 ZDC10 COIL DC-2701

¤N

DC-2501

¤N

DC-2901 DC2501 DC2701

DEGAUSSING 58G0000103 58G719M096 58G0000094 58G719M096 58G0000103

10 P405

CONNECTOR AS

4850706S10 4850706S21

¤N

X X 4850706S10

¤N

11 L401

COIL H-LINEARITY

TRL-330

¤N ¤N ¤N

TRL-200D TRL-400D

¤N

58H0000025 58H0000039 58H0000041

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29 4858213800 BAG POLY 1

PE FILM TO.06¡¿250¡¿350

28 4858215400 PE FILM 1

27 6520010100 STAPLE PIN 12 18M/M JDO

26 4858037300 BOX CARTON 1 DW-3

25 4858164200 PAD 1 EPS 2895

24 4855415800 SPEC PLATE 1 150ART P/E FILM

23 4857817611 CLOTH BLACK 6 FELT TO.7 200¡¿20

22 7122401612 SCREW TAPPING 9 T2S TRS 4¡¿16 MFZN C/B+M/F

21 4852148901 COVER BACK 1 HIPS BK

20 CRT 1

19 4856015700 SCREW CRT FIXING 4 SWRM+SK-5L=27§ﬁ

18 4856215402 WASHER RUBBER 4 CR

17 MAIN PCB AS 1 CP-775

16 4854934001 BUTTON 1 ABS BK

15 4857817612 CLOTH BLACK 3 FELT TO.7 250¡¿20

14 7121401611 SCREW TAPPING 20 T2S PAN 4¡¿16 MFZN BRKT+M/F

13 4853414501 BRKT CRT 4 ABS NC

12 4853311601 RETAINER BACK 7 HIPS NC

11 4852062401 MASK FRONT 1 HIPS BK

10 7122401212 SCREW TAPPING 8 T2S TRS 4¡¿12 MFZN SPK+M/F

9 SPK 2

8 4852535101 GRILL SPK R 1 EGI TO.5

7 4857923300 DOOR LOCK 1 LA701(KIFCO)

6 4855617401 MARK BRAND 1 AL(SILVER)

5 4855058201 DECO CTRL 1 PVC TO.3

4 4852820601 DOOR 1 PC SMOG

3 4856717900 SPRING 1 SWPA(‹6.4¡¿16 TO.5)

2 4854849201 BUTTON POWER 1 ABS BK

1 4852534901 GRILL SPK L 1 EGI TO.5

MECHANICAL EXPLODED VIEW

2896

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29 4858213800 BAG POLY 1

PE FILM TO.06¡¿250¡¿350

28 4858215400 PE FILM 1

27 6520010100 STAPLE PIN 12 18M/M JDO

26 4858037300 BOX CARTON 1 DW-3

25 4858164200 PAD 1 EPS 2895

24 4855415800 SPEC PLATE 1 150ART P/E FILM

23 4857817611 CLOTH BLACK 6 FELT TO.7 200¡¿20

22 7122401612 SCREW TAPPING 9 T2S TRS 4¡¿16 MFZN C/B+M/F

21 4852148901 COVER BACK 1 HIPS BK

20 CRT 1

19 4856015700 SCREW CRT FIXING 4 SWRM+SK-5L=27§ﬁ

18 4856215402 WASHER RUBBER 4 CR

17 MAIN PCB AS 1 CP-775

16 4854934001 BUTTON 1 ABS BK

15 4857817612 CLOTH BLACK 3 FELT TO.7 250¡¿20

14 7121401611 SCREW TAPPING 20 T2S PAN 4¡¿16 MFZN BRKT+M/F

13 4853414501 BRKT CRT 4 ABS NC

12 4853311601 RETAINER BACK 7 HIPS NC

11 4852062401 MASK FRONT 1 HIPS BK

10 7122401212 SCREW TAPPING 8 T2S TRS 4¡¿12 MFZN SPK+M/F

9 SPK 2

8 4852535101 GRILL SPK R 1 EGI TO.5

7 4857923300 DOOR LOCK 1 LA701(KIFCO)

6 4855617401 MARK BRAND 1 AL(SILVER)

5 4855058201 DECO CTRL 1 PVC TO.3

4 4852820601 DOOR 1 PC SMOG

3 4856717900 SPRING 1 SWPA(‹6.4¡¿16 TO.5)

2 4854849201 BUTTON POWER 1 ABS BK

1 4852534901 GRILL SPK L 1 EGI TO.5

2898

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28G6

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28G7

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28G2

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