DAEWOO ELECTRONICS DLT-42U1GMB Bedienungsanleitung

Service Manual

LCD TV

CHASSIS : SL-701T

Model : DLT - 42U1GMB

DLT - 42G1LTBD

DLT - 46U1UMB

DLT - 46U1STB

S/M NO. : DSL701TEF0

Dec. 2007

All manuals and user guides at all-guides.com

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Contents

1.Safety Precaution ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3

2.Product Specification ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4

2-1.Product Specification⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4

2-2.Available Input Signal ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5

3.Block Diagram ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8

3-1.Signal Block Diagram ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8

3-2.Power Tree ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 9

4.SERVICE MODE ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10

4-1.EEPROM initial DATA ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10

4-2.Description of SERVICE MODE ITEM ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 12

5.Trouble Shooting ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 13

5-1.No Signal⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 13

5-2.When No Sond ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 20

5-3.When Key does not operte ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 20

5-4.Facts you must know when trouble diagnosing or repairing ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 21

6.Schematic ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 22

7.Printed Circuit Board ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 34

8.Mechanical Exploded Diagram ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 35

9.Part List ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 38

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All manuals and user guides at all-guides.com

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1. Safety Precautions

(1) When moving or laying down a LCD Set, please deal with care. Avoid any impact towards

the LCD Set.

(2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after

check the broken Set’s condition, make sure to turn the power (AC) off.

(3) When opening the BACK COVER, you must turn off power (AC) to prevent any electric

shock.

(4) When loosening screws, check the connecting position and type of the screw.

Sort out the screws and store them separately

Because screws holding PCBs are working as electric circuit grounding,

make sure to check if any screw is missing when assembling.

(5) A LCD Set contains different kinds of connector cables.

When connecting or disconnecting connector cables, check the direction and position

of the cable beforehand.

(6) When disconnecting connectors unplug the connectors slowly with care.

(7) Connectors are designed so that if the number of pins or the direction does not match,

connectors will not fit.

When having problem in plugging the connectors, make sure to check their kind, position,

and direction.

All manuals and user guides at all-guides.com

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2. Product Specification

Features

LCD Panel

TV System

Input

Connector

Output

Connector

Sound

Output

Power

Consumption

Dimension

(W x H x D)

Screen Size

Aspect Ratio

Resolution

Pixel Pitch

Contrast

Ratio

Receiving

System

46” 42”

16 : 9

1800 : 1

DVB-T,

PAL, SECAM,

NTSC(AV)

DVB-T,

PAL, SECAM,

NTSC(AV)

DVB-T,

PAL, SECAM,

NTSC(AV)

DVB-T,

PAL, SECAM,

NTSC(AV)

75 Ohm Coaxial

S-Video 1

SCART 2

75 Ohm Coaxial

Component RCA X 1

PC RGB D-Sub X 1

PC Audio 3.5mm Mini-Jack

SPDIF Optical-Jack Optical-Jack Optical-Jack Optical-Jack

10W

260W 230W

1114 x 745.5 x

125.5(mm) 1044 x 692 x

125(mm) 1114 x 745.5 x

125.5(mm) 1044 x 692 x

124.9(mm)

Max

Power

Source

Set

Dimension

220 ~ 240V,

50~60Hz 220 ~ 240V,

50~60Hz

HDMI

RCA X 1

D-Sub X 1

75 Ohm Coaxial 75 Ohm Coaxial

RCA X 1 RCA X 1

D-Sub X 1 D-Sub X 1

3.5mm Mini-Jack

10W

260W 210W

3.5mm Mini-Jack 3.5mm Mini-Jack

Headphone

RF-out

3.5mm Mini-Jack

1111

3.5mm Mini-Jack 3.5mm Mini-Jack 3.5mm Mini-Jack

10W 10W

1920 x 1080 1920 x 1080

0.17675mm x

0.17675mm

1000 : 1 1800 : 1 1000 : 1

1366 x 768 1366 x 768

0.4845mm x

0.4845mm 0.7455mm x

0.7455mm 0.227mm x

0.681mm x RGB

16 : 9 16 : 9 16 : 9

46” 42”

DLT-46U1UMB DLT-42U1GMB

2222

DLT-42G1LTBDDLT-46U1STB

2-1.PRODUCT SPECIFCATION

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-5-

Product Specification

2-2.Available Input Signal

2-2-1.DLT-46U1UMB, DLT-42U1GMB

Resolution

640 x 480

800 x 600

1024 x 768

1280 x 1024

480P

576P

720P

1080i

480i

576i

1920 x 1080i

V-freg

60Hz

HDMI

OOX

75Hz

60Hz

75Hz

60Hz

75Hz

60Hz

75Hz

50Hz

60Hz

50Hz

60Hz

50Hz

60Hz

OOX

OOO

OXO

PC(D-Sub) Component Standard

VESA Standard

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-6-

Product Specification

2-2-2.DLT-46U1STB, DLT-42G1LTBD

Resolution

640 x 480

800 x 600

1024 x 768

1360 x 768

480P

576P

720P

1080i

480i

576i

V-freg

60Hz

HDMI

OOX

72Hz

60Hz

72Hz

60Hz

70Hz

60Hz

50Hz

60Hz

50Hz

60Hz

50Hz

OOX

75Hz OOX

OOX

PC(D-Sub) Component Standard

75Hz OOXVESA Standard

VESA Standard

75Hz OOXVESA Standard

All manuals and user guides at all-guides.com

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-7-

Product Specification

2-2-3.Available PIP Mode

Main/Sub

AV 1

XXX X X OO

AV 1 XXX X X OO

AV 2 XXX X X OO

XXX X X OO

DVB XXX X X OO

HDMI 1 OOO O O X X

AV 2 AV 3/

S-Video

AV 3/

S-Video

DVB HDMI 1 HDMI 2

All manuals and user guides at all-guides.com

-8-

3. Block Diagram

3-1.Signal Block Diagram

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-9-

Block Diagram

3-2.Power Tree

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-10-

4. SERVICE MODE

Using the Service Remote controller, you can enter service mode directly.

SERVICE REMOCON : R-34SVC(S/N:48B3034SVC)

4-1.EEPROM initial DATA

Key

Name

Heat Run Mode

Volume Test

EDID write

S5 PANEL TEST

PICTURE TEST

Default

300

290

Don’t use

CUT OFF R

CUT OFF G

CUT OFF B

DRIVE R

DRIVE G

DRIVE B

Auto Y Clamp

Auto Y Gain

Adjustment

fix

White balance &

EEPROM Erase

Gumi channel map write

Volume 0->32->63->L->R

1.Connect jumper(I2C)

2.Press "S4" key and then, TV set display "EDID WRITE

OK" upper left of screen.

3.If EDID writing is fail, TV set display "EDID Write Error"

upper left of screen.

4.After EDID write, remove jumper

1.Press the "S8" key.

2.Press the "OK" key of user remocon. And then TV set

display " EEPROM CLEARED" upper left of screen.

3.When you turn off/on AC POWER. EEPROM data will

be cleared.

PATTERN: BLACK -> WHITE -> RED -> GREEN -> BLUE

DEMPOL CHANNEL MAP WRITE

PATTERN: BRIGHT MIN -> CEN-> MAX ->

CONTRAST MIN -> CEN -> MAX->

COLOR MIN -> CEN -> MAX

Operating Method

EEPROM Erase

operating method

Details Default

Function

Adjustment

All manuals and user guides at all-guides.com

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