Daewoo DTR-29U9ME Schematic

Service Manual

Stereo Color Television

PAL/SECAM-B/G, D/K, I, H SYSTEM NTSC 4.43/3.58-M SYSTEM

CHASSIA : CM-920FW

MODEL :DTR-29U9ME/MT

DTR-29D3ME/MT DTR-34Z9ME/MT

S/M No: TCM920FWFO

TABLE OF CONTENTS

1. Specification 2

2. CM-920FW EEPROM Presetting DATA 3

3. Circuit block Diagram 5

4. Alignment Instruction 6

5. Trouble Shooting Charts 13

6. Part list(DTR-29U9ME) 21

7. CM-920FW DIFFERENT PARTS LIST 38

8. Mechanical Exploded View 40

9. Printed Circuit Board 43

10. Schematic Diagram 45

TABLE OF CONTENTS

1. Specification 2

2. CM-920FW EEPROM Presetting DATA 3

3. Circuit block Diagram 5

4. Alignment Instruction 6

5. Trouble Shooting Charts 13

6. Part list(DTR-29U9ME) 21

7. CM-920FW DIFFERENT PARTS LIST 38

8. Mechanical Exploded View 40

9. Printed Circuit Board 43

10. Schematic Diagram 45

1. Specification

1. DTR-29D3ME/MT DTR-29U9ME/MT

2. DTR-34Z9ME/MT

TV Standard

Color System PAL, SECAM, 4.43NTSC(AV), 3.58NTSC

Sound System B/G, D/K, I, M, H Rated Voltage AC 110V ~ 240V, 50/60Hz Power Consumption 155W Sound Output Power Main 15W X 2, WOOFER 10W

HYPER + CHINA + IVORY COAST

Channel Coverage

VHF L : E2(48.25MHz) ~ S6(147.25MHz) VHF H : S7(147.25MHz) ~ S36(423.25MHz) UHF : A37(431.25MHz) ~ E69(855.25MHz)

Tuning System Frequency Synthesizer Tuning System Channel Indication On-Screen Display Programme Selection 100 Programmes

Aux. Terminal

AV-input:1, 2(Scart), 3, DVD AV-output: Scart out, RF out

Remote Control Unit R-50F06(Required two 1.5V batteries type with AA size) Dimention 850(W) X 596(H) X 515(D)mm Weight 50Kg Picture tube 29 Flat Type

TV Standard Color System PAL, SECAM, 4.43NTSC(AV), 3.58NTSC

Sound System B/G, D/K, I, M, H Rated Voltage AC 110V ~ 240V, 50/60Hz Power Consumption 158W Sound Output Power Main 8W X 2, WOOFER 10W

HYPER + CHINA + IVORY COAST

Channel Coverage

VHF L : E2(48.25MHz) ~ S6(147.25MHz) VHF H : S7(147.25MHz) ~ S36(423.25MHz) UHF : A37(431.25MHz) ~ E69(855.25MHz)

Tuning System Frequency Synthesizer Tuning System Channel Indication On-Screen Display Programme Selection 100 Programmes

Aux. Terminal

AV-input: 1, 2(Scart), 3, DVD AV-output: Scart out, RF out

Remote Control Unit R-50F06(Required two 1.5V batteries type with AA size) Dimention 845(W) X 669(H) X 556(D)mm Weight 60Kg Picture tube 34 NF Type

1. Pre-setted Chanel for Australian

2. CM-920FW EEPROM Presetting DATA

2 PAL 2CH ( 64.25MHz) for Austlaina Field Chanel 7 PAL 7CH (182.25MHz) for Austlaina Field Chanel 9 PAL 9CH (196.25MHz) for Austlaina Field Chanel 10 PAL 10CH (209.25MHz) for Austlaina Field Chanel 28 PAL 28CH (527.25MHz) for Austlaina Field Chanel

PR. No.

2. Pre-setted Chanel for Mass-production

PAL-B 10CH (623.25MHz)

For white balance

PAL-B 2CH ( 48.25MHz)

For Geometry & Nicam stereo check

PAL-B 5CH (175.25MHz)

For Geometry & 2-carrier dual check

PAL-B 10CH (210.25MHz)

For fuction check

PAL-B 4CH ( 62.25MHz)

For fuction check

SCM-B 12CH (224.25MHz)

For fuction check

PAL-K 18CH (511.25MHz)

For fuction check

PAL-I 31CH (551.25MHz)

For fuction check

PAL-B 8CH (196.25MHz)

For purity & 2-carrier stereo

NTSC 3CH ( 61.25MHz)

For NTSC

NTSC 8CH (181.25MHz)

For NTSC Geomery

PAL-G 21CH (471.25MHz)

reserved

* presetted channel for mass-production can be changed.

White/Black RETMA CROSS HATCH COLOR BAR

PHILIPS RETMA COLOR BAR RED

PR. No.

COLOR BAR RETMA R,B,W

DEM

400Hz 60% MOD. NICAM St. (L :1KHz, R :0KHz) 1KHz 60% MOD. 2-C Dual (Main:1KHz, Sub:5KHz) 400Hz 60% MOD. 1KHz 80% MOD. NICAM Dual(Main:1KHz, Sub:3KHz) SWEEP 60%(Standard:1KHz, 268Hz~4.2KHz) SWEEP 60%(Standard:1KHz, 268Hz~4.2KHz) 400Hz 60% MOD. NICAM St. (L :1KHz, R :0KHz) 5KHz 60% MOD. 2-C St. (L :0KHz, R :5KHz) 1KHz Korean Dual(1KHz,5KHz) SWEEP (268Hz~4.2KHz) 1KHz 60% MOD.

3. Pre-setted DATA for Adjusments

PAL NTSC NT=PAL+xxx

PAL NTSC PAL NTSC

Screen adjustments

V-CENTER 3930 3952

182

+3895 +3927 +3910 +3932

V-SIZE 121 120

-1

+139 +138 +131 +130

H-CENTER 82 83

+86 +87 +84 +85

H-SIZE -160 -294

-134

+1290 +1156 -130 -264

PARABOLA -160 -158

-172 -170 -144 -142

EW TRAPEZ 36 -3

-39

+20 -19 +20 -19

CORNER 120 120

H BOW 143 140

-3

+40 +37 +40 +37

H PARALL -2 -2

V LINEAR -3 -5

-03 -05 -03 -05

S CORRECT -27 -27

P H POS P V POS P R/G/B Peak P CONT P BRIGHT

R/G/B DRIVE R/G/B BIAS

SUB BRI.

SUB CONT.

NOR COLOR

AGC MAIN AGC SUB

S11

S12

CONT

For Changing SUB-Brightness Adjust Reference

IBRM

For Changing Screen Adjust Reference

330

13 13

+30

170/170/170

150/150/150

04 01

170/170/170

160/160/160

Not Use

Shipping

SVC Main Menu

300

S10

AGC

13 13

40/40/40

10 07

Geometry

PIP

BARE

29"34"

SUB PICTURE

Screen

Sound Test

Picture Test

Heat-Run

Timer LED test

+80

-30

+80

-30

170/170/170

40/40/40

+30

160/160/160

13 13

WHITE

BALANCE

NOR SHARP

BRM

148

125

127

40/40/40

340

remarkKEY

Name Details

CM-920FW EEPROM Presstting DATA

4. CPU option for Function Change

ON with PIP DTX-XXXXME

OFF Without PIP DTX-XXXXMT

ON Enable the Digital Sensor

OFF Disable the Digital Sensor

ON for all models, except NEC

OFF Enable the English(NEC)

ON 34"inch

OFF 29"inch

ON For PARS Elec

OFF For all Model except PARS

ON CM-921F Chassis

OFF CM-920F/W Chassis

LATIN

EAST

RUSSIA

PERSIAN

ARAB

OFF

ON For PARS Elec

OFF For all Model except PARS

34 Inch

TEXT sel.

TEXT DISP EXT PORT

English,French,Swedish,Czech,German,Spanish,Italian,Estonian

English,Slovakian,Serbian,Albanian,Polish,Turkian,Rumanian

English,Russian,Bulgaian,Ukrainian,Serbian,Montenegro

English,Farsi

English,Arabic

Teletext Language depends on OSD Language selection

PARS LOGO.

It depends on Cabinet Design

Note : If OSD language & text selec.

is different then Teletext depends on

Text selec.

PIP

Digital EYE

Languge

3. circuit block Diagram

4. Alignment Instruction

1. SERVICE REMOCON & EEPROM PRESETTING DATA

1-1. SERVICE REMOCON : R-34SVC (S/N:48B3034SVC) 1-2. EEPROM PRESETTING DATA

PAL NTSC NT=PAL+xxx PAL NTSC PAL NTSC

S1 Heat-Run - S2 Screen - S3 Sound Test - S4 Picture Test - S5 Timer LED test -

V-CENTER 3930 3952 182 3895 3927 3910 3932 V-SIZE 121 120 -1 139 138 131 130 H-CENTER 82 83 1 86 87 84 85 H-SIZE -160 -294 -134 1290 1156 -130 -264 PARABOLA -160 -158 2 -172 -170 -144 -142 EW TRAPEZ 36 -3 -39 20 -19 20 -19 CORNER 120 120 0 H BOW 143 140 -3 40 37 40 37 H PARALL -2 -2 0 V LINEAR -3 -5 +2 -03 -05 -03 -05 S CORRECT -27 -27 0 P H POS P V POS P R/G/B Peak P CONT P BRIGHT R/G/B DRIVE R/G/B BIAS SUB BRI. SUB CONT.

NOR COLOR AGC MAIN AGC SUB

S11 Not Use - S12 Shipping -

CONT

For SUB-Bright Adjust Reference

IBRM

For Screen Adjust Reference

34" 29"

remark

---

BARE

---

-30 -30

80 80

00 00

988

29 30

40/40/40 40/40/40 40/40/40

160/160/160

04 7 7

150/150/150 160/160/160

01 0

170/170/170 170/170/170 170/170/170

13 13 13

07 07 07

10 17

13 13 13

NOR SHARP

3232

BRM

148 127125

---

16 50 50

330 300 340

SVC Main Menu

WHITE BALANCE

SUB PICTURE

Geometry

PIP

KEY Name Details

S10 AGC

Alignment Instruction

2. The confirmation of Protection circuit

Protection circuit confirmation is omitted in case of mass production in the factory

2-1. Over Current Protecor (OCP) circuit confirmation

2-1-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B) and adjust

STANDARD MODE in PICTURE.

2-1-2. Connect 1MΩ 1/2W between BASE of Q807 and GND, to confirm operating of

PROTECTOR. The next place, to confirm normal operation when the resister(1MΩ) is removed.”

2-1-3. After Main Power Switch OFF/ON, to confirm normal operation of picture and

sound when turn the set on by remocon.

2-2. High Voltage Protecor (X-ray Protection) circuit confirmation.

2-2-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B), adjust

CONTRAST&BRIGHTNESS to minimun.

2-2-2. Connect 1/6W 15K ohm to R413(1/6W 24K ohm) of POWER PCB in parallel.

Confirm that operation of the SET is SHUT-DOWN condition(High Voltage

Protector). 2-2-3. The next place, to confirm normal operation when the resister(15KΩ) is removed.” 2-2-4. After Main Power Switch OFF/ON, to confirm normal operation of picture and

sound when turn the set on by remocon.

- ON : With PIP Models (DTx-xxxxME seiese)

- OFF : Without PIP Models (DTx-xxxxMT seriese)

- ON : Enable the Digital Sensor (for all Model)

It depends on Cabinet Design

- OFF : Disable the Digital Sensor

- ON : Enable the all Languge (for all models, except NEC)

- Multi OSD-Language

- OFF : Enable the English - Only English

- ON : For 34 inch Models Change the Vertical

- OFF : For 29 inch Models Blanking puls width LATIN : English,French,Swedish,Czech,German,Spanish,Italian,Estonian

EAST : English, Slovakian,Hungarian,Serbian,Albanian,Polish,Turkian,Rumanian RUSSIA : English,Russian,Bulgaian,Ukrainian,Serbian,Montenegro PERSIAN : English,Farsi ARAB : English,Arabic OFF : Teletext Language depends on OSD Language selection

- ON : For PARS Elec.

- OFF : For all Model except PARS

Languge

34 Inch

TEXT sel.

PARS LOGO

TEXT DISP

EXT PORT

Note : If OSD language & text selec. is different then Teletext depends on Text selec.

PIP

Digital EYE

- ON : For PARS Elec

- OFF : For all Model except PARS

- ON : CM-921F Chassis

- OFF : CM-920F/W Chassis

* Software option for Function Change

3-1.Confirm the presetting ‘IBRM’ data of EEPROM according to CRT.

3-1-1. Default Value of IBRM : IBRM(34inch) = 320, IBRM(29inch Flat) = 340

3-2. Press the [S2] KEY of SVC Remocon, Screen-Adjustment OSD will be

displayed.

3-3. Adjust SCREEN V/R of FBT to Screen-OSD-Bar come to center.

(Screen OSD numeral is between 28 and 34)

3-4. To be complated adjustment of screen. Press the [S2] key to escape

screen adjustment mode.

4-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B). 4-2. Adjust the picture to best distinct picture of 350 Line by revolve Focus

Volume.

5-1. NITSUKI Setting : Set Nitsuki to the ‘Auto Mode’, Reference to the ‘B’, and

System to the ‘PAL’.

5-2. Setting the Normal Stats

5-2-1. Adjust Picture to Normal mode. 5-2-2. Adjust the Gain of Nitsuki to suitability by manual when condition is Normal.

- Adjust the standard illumination take within limit bright of Nitsuki and luminosity of SET into acount.

- Exhortative Standard illumination, 34inch : High 70Cd/m

, LOW BEAM : about

15Cd/m

5-2-3. Press the [S8]key of SVC remocon to adjustment of Whit Balance.

X=0.288, Y=0.301

5-2-4. Memorize in Nitsuki after Adjustment of White Balance.

5-3. Adjustment of White Balance

5-3-1. Receive Nitsuki signal. 5-3-2. Adjust Picture to Normal mode. 5-3-3. The Adjustment of High Beam : Adjust R-DRIVE and G-DRIVE to R,G,B BAR

come to center.

5-3-4. The Adjustment of Low Beam : Adjust R-BIAS and G-BIAS to R,G,B BAR come to

center.

5-3-5. Repeat 5-3-3 and 5-3-4 to R,G,B BAR come to within center

Alignment Instruction

3. The adjustment of SCREEN

4. The adjustment of FOCUS

5. The adjustment of WHITE BALANCE

Alignment Instruction

6. The adjustment of AGC

7. The adjustment of GEOMETRY

6-1. Main and Sub AGC DATA are Fixed, but those can be adjusted in case of

need.

6-2. Confirm the Main AGC and Sub AGC by pressing the [S10]key of SVC

remocon. Main AGC=13, Sub AGC=13

7-1. Press the [S-6]key on the SVC remocon to call up the Geometry mode.

And then, Geometry OSD will be displayed.

7-1-1. All adjustment is base on PAL(50Hz), but it can be base on NTSC(60Hz) in case

of need.

7-1-2. Have regard to change of NTSC(60Hz)-Geometry when Geometry is adjusted in

PAL(50Hz).

7-1-2. Have regard to fixity of PAL(50Hz)-Geometry when Geometry is adjusted in

NTSC(60Hz).

7-2. The adjustment of VERTICAL CENTER

7-2-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH). 7-2-2. Press the PR up/down Keys( / ) to select V CENTER.

Adjust with Vol Up/Down ( / ) keys so that the center mark of the CRT may be located on the horizontal line in the middle of the pattern. In case of no center

mark, adjust with Vol Up/Down ( / ) keys to obtain a vertically symmetrical pattern.

7-3. The adjustment of VERTICAL SIZE

7-3-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH). 7-3-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Adjust with Vol Up/Down ( / ) keys sothat the upper and the lower of RETMA pattern may be located at the boundaries of the screen.

7-4. The adjustment of HORIZONTAL CENTER

7-4-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH). 7-4-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Referring to the both side scales, adjust with Vol Up/Down ( / ) keys so that RETMA pattern may be symmetrical.

7-5. The adjustment of HORIZONTAL SIZE

7-5-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH). 7-5-2. Press the PR up/down Keys ( / ) to select V-SIZE.

Referring to the both side scale, adjust with Vol Up/Down ( / ) keys.

Alignment Instruction

7-6. The adjustment of PINCUSHION

7-6-1. Receive PAL CROSSHATCH pattern(signal of company:PAL-B 5CH). 7-6-2. Press the PR up/down Keys ( / ) to select PARAVOLRA.

Referring to the 2th line of both side, adjust with Vol Up/Down ( / ) keys.

7-6-3. The other adjustment list of Pincushion

- ADJUSTMENT LIST : EW TRAPEZ, CORNER, H-BOW, H-PARALELL

- Fix adjustments of related Pincution(except EW PARA.) after EEPROM presetting, but those can be adjusted in case of need.

Alignment Instruction

8. THE ADJUSTMENT OF SUB-PICTURE (SUB-BRIGHT, SUB-CONTRAST)

7-7. The adjustment of Vertical Linearity

7-7-1. Receive PAL CROSSHATCH pattern(signal of company:PAL-B 5CH). 7-7-2. Fix adjustment of Vertical Linearity after EEPROM presetting, but it can be

adjusted in case of need.

7-7-3. Press the PR up/down Keys ( / ) to select V LINEAR.

Adjust Vertical Linearity with Vol Up/Down ( / ) keys.

7-8. The adjustment of VERTICAL S-Correction

7-8-1. Receive PAL CROSSHATCH pattern(signal of company:PAL-B 5CH). 7-8-2. Fix adjustment of Vertical S-Correction after EEPROM DATA presetting, but it can

be adjusted in case of need.

7-8-3. Press the PR up/down Keys ( / ) to select S CORRECT.

Adjust S-Corrction with Vol Up/Down ( / ) keys.

8-1. Receive PAL RETMA PATTERN(signal of company:2CH., PAL-B) 8-2. Press the [S9] KEY of SVC Remocon, SUB PICTURE-Adjustment OSD wil

be displayed.

8-3. The adjustment of SUB-BRIGHT

8-3-1. Press the PR up/down Keys ( / ) to select SUB-BRIGHT in SUB-PICTURE

MENU. Adjust SUB-BRIGHT with Vol Up/Down ( / ) keys.

8-3-2. Adjust With BRM(Default Value=127) When SUB-BRIGHT is lacking in margin of

adjustment.

8-3-3. Standard of adjustment : Adjust till instant of 1, 2th cordon disappear in RETMA

CONTRAST CHART(signal of company).

8-3-4. When Sub-Picture mode was exited after SUB’s adjustment, Normal vlaue is

brighter(about 18%) than adjustment-point(about 10%) of adjustment-mode because BRIGHT is set to rise 2~3 step.

Alignment Instruction

9. THE ADJUSTMENT OF PIP

8-4. The adjustment of SUB-CONTRAST

8-4-1. Fix adjustment of SUB-CONTRAST after EEPROM DATA presetting. 8-4-2. Reference (Default value) : 07

9-1. Receive PAL RETMA pattern(signal of company:PAL-B 2CH) and Color

Bar.

9-2. Press the [S7] KEY of SVC Remocon, PIP-Adjustment OSD wil be

displayed.

9-3. Fix adjustment of PIP after EEPROM DATA presetting, but it can be

adjusted in case of need.

9-4. Adjust PIP after GEOMETRY, WHITE BALANCE and SUB-BRIGHT are

adjusted.

9-5. List of adjustment

1) PIP H POSITON : Adjustment of H-position Sub-Picture, Should use caution in adjustment because horizontal position of 2PIC & Search-Picture(3PIC,9PIC,12PIC) are changed. (Reference : Presetting Value of EEPROM = 30)

2) PIP V POSITON : Adjustment of V-position of Sub-Picture, Should use caution in adjustment because vertical position of 2PIC & Search-Picture(3PIC,9PIC,12PIC) are changed. (Reference : Presetting Value of EEPROM = 08)

3) PIP R/G/G Peak : Adjustment of Gain of PIP IC R,G,B Output (Reference : Presetting Value of EEPROM = 160)

4) CONTRAST : Adjustment of AC Gain(Contrast) of PIP IC RGB Output

(Reference : Presetting Value of EEPROM = 07)

5) P BRIGHT : Adjustment of DC Level(SUB BRIGHT) of PIP IC RGB Output

(Reference : Presetting Value of EEPROM = 00)

1. NO RASTER

CASE : Chattering sound of Relay(Y801, Y802) & LED on/off.

Chattering sound of Relay(Y801, Y802) & High voltage on/off & LED on/off.

Check voltage of C893(330uF) is 290Vdc at AV 220V ---> OK Check voltage of DS802 is 5.5Vdc ---> OK Check secondary voltage(T801)(132V, 16V, 7.5V, 22V) ---> NG

Check voltage at 9th pin of I801(normal status : 8V) Chattering case : 9th pin of I801 is 6V ---> Q801 is destructed.

9th pin of I801 is 6V~0V ---> D807 is destructed.

High voltage on/off case : 9th pin of I801 is 6V~3V °Ê I802 is dead or R817 is

destructed.

CASE : No booting sound(ex:Sounds of Relay, High Voltage and Beep)

& LED on/off. No booting sound & LED off

5. Trouble Shooting Charts

Check voltage of CS803 is 290Vdc at AV220V ---> OK Check voltage of C893 is 290Vdc at AV220V ---> NG Secondary voltage(T801) ---> NG

LED on/off case:check R833, Y801, Q806 among others there is destructed LED off case: stand-by 5V line to micom is abnormal.

CASE : No booting sound & LED off & destruct of IS801

Check voltage of CS803 is 290Vdc at AV220V ---> OK Check voltage of C893 is 290Vdc at AV220V ---> NG Secondary voltage(T801) ---> NG

Check/Replace IS801 & TS801

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