Daewoo DLP-26C2 Manuel utilisateur

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 PPL(Parts Price List)in

Service Information Center.

Service Manual

LCD TV

CHASSIS :

Model :

S/M NO. : DSL223PEF0

SL-223P

DLP-26C2

DLP-26C3

DLP-32C1

DLP-32C2

DLP-32C3

DLP-37C3

DLP-42C1

OCT. 2006

Contents

1. Safety Precautions 3

2. Product Specification 4

2-1. PRODUCT SPECIFICATION 4

2-2. Available Input Signal 6

3. Block Diagram 7

4. Description of Each Block 8

4-1. Block Diagram of Main IC and TP 8

4-2. Overview 9

4-2-1. Composite video, Y/C(S-Video) and SCART(CVBS, RGB) composite video 9

4-2-2. DTV/DVD signal 11

4-2-3. PC(Personal Computer) signal 13

4-2-4. HDMI signal 15

4-2-5. R/G/B PROCESSING(SCART1, TELETEXT R/G/B) 15

4-2-6. Audio signal processing, KEY, and LED 17

4-3. POWER PCB 22

5. SERVICE MODE 25

5-1. Check initial Menu Data 25

5-2. Entering SERVICE MODE 26

6. WHITE BALANCE Adjusting Method 29

7. Main PCBs Trouble Diagnosis 30

7-1. MAIN PCB Trouble Diagnosis 30

7-1-1. Common checking process when “No signal of Noraster” 30

7-1-2. When No Sound 37

7-1-3. When Control Key does not operate 39

7-1-4. When Remote Controller does not operate 40

7-2. POWER PCB 42

8. Trouble Diagnosis 43

8-1. Facts you must know when Diagnosis and Repairing 43

8-2. Typical Symptoms of PCB problem or bad connection 44

9. Structure of LCD Set 45

10. EXPLODED VIEW 47

11. Part List 53

12. Circuit Diagram 67

-2-

-3-

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 the 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, turn off the power(AC) to prevent 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 PCB are working as electric circuit GROUNDING,

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

(5) A LCD Set contain different kind 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.

-4-

2. Product Specification

2-1. PRODUCT SPECIFICATION

Features DLP-26C2AMSB DLP-32C2AMSB

LCD Panel Screen Size 26” 32”

Aspect Ratio 16 : 9 16 : 9

Resolution 1366 X 768(WXGA) 1366 X 768(WXGA)

Pixel Pitch 0.4215mm 0.51075

Contrast Ratio 1000 : 1 800 : 1

TV System Receiving System PAL, SECAM PAL, SECAM

Stereo System 2-Carrer/NICAM 2-Carrer/NICAM

Channel Memory 99ch, Auto Preset 99ch, Auto Preset

Input Connector RF 75 Ohm Coaxial 75 Ohm Coaxial

S-Video 1 1

SCART 2 2

Component RCA X 1 RCA X 1

PC RGB D-Sub X 1 D-Sub X 1

PC Audio 3.5mm Mini-Jack 3.5mm Mini-Jack

HDMI 1 1

Output Connector SPDIF Optical-Jack Optical-Jack

Headphone 3.5mm Mini-Jack 3.5mm Mini-Jack

RF-out 1 1

Sound Output 10W 10W

Power Consumption Max. 120W 160W

Power Source 110-240V, 50-60Hz 110-240V, 50-60Hz

Dimension(W X H X D) Set Dimension 812 X 502.7 X 240 944 X 585.5 X 240

Product Specification

-5-

Features DLP-37C3LMBS DLP-42C1LMR

LCD Panel Screen Size 37” 42”

Aspect Ratio 16 : 9 16 : 9

Resolution 1366 X 768(WXGA) 1366 X 768(WXGA)

Pixel Pitch

0.2mm X 0.6mm X RGB

0.227mm X 0.681mm X RGB

Contrast Ratio 800 : 1 550 : 1

TV System Receiving System PAL, SECAM PAL, SECAM

Stereo System 2-Carrer/NICAM 2-Carrer/NICAM

Channel Memory 99ch, Auto Preset 99ch, Auto Preset

Input Connector RF 75 Ohm Coaxial 75 Ohm Coaxial

S-Video 1 1

SCART 2 2

Component RCA X 1 RCA X 1

PC RGB D-Sub X 1 D-Sub X 1

PC Audio 3.5mm Mini-Jack 3.5mm Mini-Jack

HDMI 1 1

Output Connector SPDIF Optical-Jack Optical-Jack

Headphone 3.5mm Mini-Jack 3.5mm Mini-Jack

RF-out 1 1

Sound Output 10W 10W

Power Consumption Max. 200W 220W

Power Source 110-240V, 50-60Hz 110-240V, 50-60Hz

Dimension(W X H X D) Set Dimension 940 X 655 X 129 1060 X 758 X 133

Product Specification

-6-

2-2. Available Input Signal

2-2-1. HDMI/ PC/COMPONENT

2-2-2. VIDEO

- PAL, PAL-M, PAL-N

- NTSC, NTSC4.43

- SECAM

Resolution V-freq HDMI PC(D-Sub) Component Standard

60Hz O O X

640 X 480 72Hz O O X

75Hz O O X VESA Standard

60Hz O O X VESA Standard

800 X 600 72Hz O O X VESA Standard

75Hz O O X

60Hz O O X VESA Standard

1024 X 768 70Hz O O X VESA Standard

75Hz O O X VESA Standard

720 X 480P 60Hz O X O

720 X 576P 50Hz O O O

1280 X 720P 50Hz O X O

60Hz O O O

1920 X 1080i 50Hz O X O

60Hz O O O

720 X 480i 60Hz X X O

720 X 576i 50Hz X X O

-7-

3. Block Diagram

-8-

4. Description of Each Block

4-1. Block Diagram of Main IC and TP

-9-

4-2. Overview

Digital PCB is Multi Media circuit board that can process various input signals such as

video, component, PC, HDMI, and analog TV signal.

4-2-1. Composite video, Y/C(S-Video) and SCART(CVBS, RGB) composite video

- Flow Chart of RF, Video, S-Video Signal

Description of Each Block

-10-

Description of Each Block

Y signal(input to IC505)

Location : CC451

Color signal(input to IC505)

Location : CC456

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