Daewoo DTD-21H9 Manual de usuario

http : //svc.dwe.co.kr

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the

latest parts information, please refer to L( arts rice List)in

Service Information Center(http://svc.dwe.co.kr)

DAEWOO ELECTRONICS Corp.

Service Manual

Jan. 2005

COLOR TELEVISION

CHASSIS : CP-093F

MODEL : DTD-21H9

SM No :TCP093FEF0

CP-093F Service Manual

CONTENTS

1. MAIN FEATURES 2

1.1 SPECIFICATIONS 2

1.1.1 GENERAL 2

1.1.2 EURO-SCART 1(21Pin) 3

1.1.3 CHANNEL/FREQUENCY TABLE 4

2. SAFETY INSTRUCTION 7

3. ALIGNMENT INSTRUCTIONS 8

3.1 MICROCONTROLLER CONFIGURATION:SERVICE MODE 8

3.2 SERVICE MODE NADVIGATION 8

3.3 MICROCONTROLLER CONFIGURATION:OPTION BITS 8

3.4 OPTION 1 9

3.5 OPTION 2 9

3.6 NVM default setting 10

4. TV SET ALIGNMENT 12

4.1 G2 ALIGNMENT 12

4.2 WHITE BALANCE 12

4.3 FOCUS 12

4.4 VERTICAL GEOMETRY 12

4.5 HORIZONTAL PICTURE CENTRING 12

4.6 EAST/WEST CORRECTION 12

4.7 AGC 13

5 IC DESCRIPTION 14

5.1 UOC/// Series 14

5.1.1 IC MARKING AND VERSION 14

5.1.2 BLOCK DIAGRAM 15

5.1.3 PINNING 16

5.1.4 FEATURES 17

5.2 TDA8944J STEREO AUDIO AMPLIFIER 22

5.2.1 FEATURES 23

5.3 TDA8357J VERTICAL AMPLIFIER 25

5.3.1 TDA8357J 25

5.4 TDA6107AJE 28

5.4.1 Features 28

5.4.2 Pin description 28

5.5 24WC16-16KB EEPROM 29

5.6 STR-F6756/4 30

5..6.1 Functions of Each Terminal 30

5..6.2 Block Diagram(Connection diagram) 30

5..6.3 CONTROL PART - ELECTRICAL CHARACTERISTICS 33

6. SPECIFICATIONS 34

7. SERVICE PARTS LIST 37

8. EXPLODED VIEW 51

9. SCHEMATIC DIAGRAM 55

CP-093F Service Manual

1. MAIN FEATURES

1.1 SPECIFICATIONS

1.1.1GENERAL

TV standard PAL - SECAM B/G D/K, PAL I/I, SECAM L/L’

Tuner PAL, SECAMColour system AV PAL, SECAM, PAL 60, NTSC M, NTSC 4.43

Sound system NICAM B/G, I, D/K, L,

FM 2Carrier B/G, D/K

Power

consumption 21”: 74W

Sound Output

Power 20”: 3W x 2 (at 60% mod, 10%THD)

Speaker

21”: 5W 8 ohm x2 is not connected)

Teletext system 10 pages memory FASTEXT (FLOF or TOP)

Aerial input 75 ohm unbalanced

Channel coverage Off-air channels, S-cable channels and hyperband

Tuning system frequency synthesiser tuning system

Visual screen size

21”: 51cm

Channel indication On Screen Display

Program Selection 100 programmes

Aux. terminal - EURO-SCART : Audio / Video In and Out, R/G/B

In, Slow and Fast switching.

- Headphone jack on front of cabinet

(21”)

- AV2 : Video and Audio L/R out, Headphone jack

at side of cabinet.

Remote Control

Unit R-52C03

CP-093F Service Manual

1.1.2EURO-SCART 1 (21 Pin)

Pin Signal Description Matching value

1Audio Output Right 0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )

2Audio Input Right 0.5 Vrms, Impedance > 10 kΩ

3Audio Output Left 0.5 Vrms, Impedance < 1 kΩ, ( RF 54% Mod )

4Audio Earth

5Blue Earth

6Audio Input Left 0.5 Vrms, Impedance > 10 kΩ

7Blue Input 0.7 Vpp ±0.1V, Impedance 75Ω

8Slow Switching TV : 0 to 2V, AV 16/9 : 4.5 to 7V, AV 4/3 : 9.5 to 12V , Impedance

> 10 kΩ

9Green Earth

10 N.C.

11 Green Input 0.7 Vpp ±0.1V, Impedance 75Ω

12 N.C.

13 Red Earth

14 Blanking Earth

15 Red Input 0.7 Vpp ±0.1V, Impedance 75Ω

16 Fast Switching 0 to 0.4V : Logic“0”, 1 to 3V : Logic“1”, Impedance 75Ω

17 Video Out Earth

18 Video In Earth

19 Video Output 1 Vpp ±3dB, Impedance 75Ω

20 Video Input 1 Vpp ±3dB, Impedance 75Ω

21 Common Earth

CP-093F Service Manual

1.2 CHANNEL/FREQUENCY TABLE

CHANNEL EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT

C01 46.25 -45.75 49.75

C02 48.25 55.75 (L') 53.75 59.25

C03 55.25 60.5 (L') 61.75 77.25

C04 62.25 63.75 (L') 175.25 85.25

C05 175.25 176.00 183.25 93.25

C06 182.25 184.00 191.25 175.25

C07 189.25 192.00 199.25 183.25

C08 196.25 200.00 207.25 191.25

C09 203.25 208.00 215.25 199.25

C10 210.25 216.00 223.25 207.25

C11 217.25 189.25 (LUX) 231.25 215.25

C12 224.25 69.25 (L') 239.25 223.25

C13 53.75 76.25 (L') 247.25 -

C14 -83.25 (L') 49.75 -

C15 82.25 90.25 57.75 -

C16 -97.25 65.75 -

C17 183.75 -77.75 -

C18 192.25 -85.75 -

C19 201.25 - - -

C20 - - - -

C21 471.25 471.25 471.25 471.25

C22 479.25 479.25 479.25 479.25

C23 487.25 487.25 487.25 487.25

C24 495.25 495.25 495.25 495.25

C25 503.25 503.25 503.25 503.25

C26 511.25 511.25 511.25 511.25

C27 519.25 519.25 519.25 519.25

C28 527.25 527.25 527.25 527.25

C29 535.25 535.25 535.25 535.25

C30 543.25 543.25 543.25 543.25

C31 551.25 551.25 551.25 551.25

C32 559.25 559.25 559.25 559.25

C33 567.25 567.25 567.25 567.25

C34 575.25 575.25 575.25 575.25

C35 583.25 583.25 583.25 583.25

C36 591.25 591.25 591.25 591.25

C37 599.25 599.25 599.25 599.25

C38 607.25 607.25 607.25 607.25

C39 615.25 615.25 615.25 615.25

C40 623.25 623.25 623.25 623.25

C41 631.25 631.25 631.25 631.25

C42 639.25 639.25 639.25 639.25

C43 647.25 647.25 647.25 647.25

C44 655.25 655.25 655.25 655.25

C45 663.25 663.25 663.25 663.25

CP-093/F Service Manual

C46 671.25 671.25 671.25 671.25

C47 679.25 679.25 679.25 679.25

C48 687.25 687.25 687.25 687.25

C49 695.25 695.25 695.25 695.25

C50 703.25 703.25 703.25 703.25

C51 711.25 711.25 711.25 711.25

C52 719.25 719.25 719.25 719.25

C53 727.25 727.25 727.25 727.25

C54 735.25 735.25 735.25 735.25

C55 743.25 743.25 743.25 743.25

C56 751.25 751.25 751.25 751.25

C57 759.25 759.25 759.25 759.25

C58 767.25 767.25 767.25 767.25

C59 775.25 775.25 775.25 775.25

C60 783.25 783.25 783.25 783.25

C61 791.25 791.25 791.25 791.25

C62 799.25 799.25 799.25 799.25

C63 807.25 807.25 807.25 807.25

C64 815.25 815.25 815.25 815.25

C65 823.25 823.25 823.25 823.25

C66 831.25 831.25 831.25 831.25

C67 839.25 839.25 839.25 839.25

C68 847.25 847.25 847.25 847.25

C69 855.25 855.25 855.25 855.25

C70 863.25 863.25 863.25 863.25

C71 69.25 - - -

C72 76.25 - - -

C73 83.25 - - -

C74 90.25 - - -

C75 97.25 - - -

C76 59.25 - - -

C77 93.25 - - -

S01 105.25 104.75 103.25 105.25

S02 112.25 116.75 111.25 112.25

S03 119.25 128.75 119.25 119.25

S04 126.25 140.75 127.25 126.25

S05 133.25 152.75 135.25 133.25

S06 140.25 164.75 143.25 140.25

S07 147.25 176.75 151.25 147.25

S08 154.25 188.75 159.25 154.25

S09 161.25 200.75 167.25 161.25

S10 168.25 212.75 -168.25

S11 231.25 224.75 -231.25

S12 238.25 236.75 -238.25

S13 245.25 248.75 255.25 245.25

S14 252.25 260.75 263.25 252.25

S15 259.25 272.75 271.25 259.25

S16 266.25 284.75 279.25 266.25

S17 273.25 296.75 287.25 273.25

CP-093F Service Manual

S18 280.25 136.00 295.25 280.25

S19 287.25 160.00 303.25 287.25

S20 294.25 - - 294.25

S21 303.25 303.25 -303.25

S22 311.25 311.25 311.25 311.25

S23 319.25 319.25 319.25 319.25

S24 327.25 327.25 327.25 327.25

S25 335.25 335.25 335.25 335.25

S26 343.25 343.25 343.25 343.25

S27 351.25 351.25 351.25 351.25

S28 359.25 359.25 359.25 359.25

S29 367.25 367.25 367.25 367.25

S30 375.25 375.25 375.25 375.25

S31 383.25 383.25 383.25 383.25

S32 391.25 391.25 391.25 391.25

S33 399.25 399.25 399.25 399.25

S34 407.25 407.25 407.25 407.25

S35 415.25 415.25 415.25 415.25

S36 423.25 423.25 423.25 423.25

S37 431.25 431.25 431.25 431.25

S38 439.25 439.25 439.25 439.25

S39 447.25 447.25 447.25 447.25

S40 455.25 455.25 455.25 455.25

S41 463.25 463.25 463.25 463.25

CP-093F Service Manual

2. SAFETY INSTRUCTION

WARNING: Only competent service personnel may carry out work involving the testing or repair

of this equipment.

X-RAY RADIATION PRECAUTION

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

such hazards, the high voltage must not exceed the specified limit. The nominal value of the high

voltage of this receiver is 25-26 KV (20”-21”) or 26 KV (25”- 28”) at max beam current. The high

voltage must not, under any circumstances, exceed 27.5 KV (20”), 29KV (21”), 29.5 KV (25") or

30 KV (28"). Each time a receiver requires servicing, the high voltage should be checked. It is

important to use an accurate and reliable high voltage meter.

2. The only 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

specified in the parts list.

SAFETY PRECAUTION

Potentials of high voltage are present when this receiver is operating. Operation of the receiver

outside the cabinet or with the back board removed involves a shock hazard from the receiver.

Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions

necessary when working on high voltage equipment.

Discharge the high potential of the picture tube before handling the tube. The picture tube is

highly evacuated and if broken, glass fragments will be violently expelled.

If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacement

Parts List.

When replacing a high wattage resistor (metal oxide film resistor) in the circuit board, keep the

resistor 10 mm away from circuit board.

Keep wires away from high voltage or high temperature components.

This receiver must operate under AC 230 volts, 50Hz. NEVER connect to a DC supply or any

other voltage or frequency.

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this equipment have special safety-related

characteristics. These characteristics are often passed unnoticed by a visual inspection and the

X-RAY RADIATION protection afforded by them cannot necessarily be obtained by using

replacement components rated for higher voltage, wattage, etc. Replacement parts which have

these special safety characteristics are identified in this manual and its supplements, electrical

components having such features are identified by designated symbol on the parts list. Before

replacing any of these components, read the parts list in this manual carefully. The use of

substitutes replacement parts which do not have the same safety characteristics as specified in

the parts list may create X-RAY Radiation.

CP-093F Service Manual

3. ALIGNMENT INSTRUCTIONS

3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE

To switch the TV set into service mode please see instruction below.

1 - Select PR. number 91

2 - Adjust sharpness to minimum and exit all menus.

3 –Within 2 seconds press the key sequence : RED - GREEN - menu

The software version is displayed beside the word Service, e.g.“SERVICE VER 00.05”.

To exit SERVICE menu press menu key or Std By key.

3.2 SERVICE MODE NAVIGATION

Pr Up/Down remote keys : cycle through the service items available.

Vol -/+ remote keys : Dec./Increment the values within range –Cycle trough option bits.

OK key : Toggle bits in option byte

Order Item Default setting

1HOR CEN

2RED GAIN

3GRN GAIN

4BLUE GAIN

5RED BIAS

6GRN BIAS

7AGC LEVEL

8G2 –SCREEN

9OPTION1

10 OPTION2

11 AVL

12 PARABOLA

13 HOR WIDTH

14 CORNER T

15 CORNER B

16 HOR. PARAL

17 V. LINEAR

18 V. SLOPE

19 EW TRAPEZ

20 S CORRECT

21 VERT CENT

22 VERT SIZE

3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS

There are two option bytes available (16 bits in all). These option bits are available from Service

mode. First find the OPTION1 or OPTION2 control, and then use the Volume PLUS/MINUS

buttons on the remote control keypad to locate the bits, and OK key to toggle them. The table

below shows the two option bytes available;

CP-093F Service Manual

3.4 OPTION 1

B7 B6 B5 B4 B3 B2 B1 B0

1TOP

Teletext

OFF

FASTEXT

(FLOF)

OFF

TUBE

4:3

VAI bit set

to 1 in

SECAM L

Dolby

Virtual

OFF

SVHS3

disable

0TOP

Teletext

FASTEXT

(FLOF) ON TUBE

16:9 VAI bit set

to 0 in

SECAM L

Dolby

Virtual

SVHS3

enable

TUNER OPTIONS

00 = Philips

01 = Not used

10 = Alps

11 = Parstnic (DW)

3.5 OPTION 2

B7 B6 B5 B4 B3 B2 B1 B0

1JVC

remote

control

AVL

control

OFF

PICTURE

TILT ON

14”

(AV2

OFF)

Full

ATSS Double

Window

Enabled

Fixed to

‘0’Daewoo

Remote

control

AVL

control

PICTURE

TILT OFF 21”

(AV2

ON)

Basic

ATSS Double

Window

Disabled

n.u.

Must

be set

to 1 for

future

compa

tibility

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