Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo LCD DLP-32C3FB sl_223p_dlp_26cx_32cx_37c3_42c1_455

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sl_223p_dlp_26cx_32cx_37c3_42c1_455


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                                        S/M NO. : DSL223PEF0


Service Manual
LCD TV
CHASSIS : SL-223P
Model :      DLP-26C2
             DLP-26C3
             DLP-32C1
             DLP-32C2
             DLP-32C3
             DLP-37C3
             DLP-42C1




   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.




                                                        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-
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.




                                             -3-
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




                                          -4-
Product Specification


                       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




                                          -5-
Product Specification


2-2. Available Input Signal

    2-2-1. HDMI/ PC/COMPONENT

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
                   50Hz        O        X           O
1280 X 720P
                   60Hz        O        O           O
                   50Hz        O        X           O
1920 X 1080i
                   60Hz        O        O           O
720 X 480i         60Hz        X        X           O
720 X 576i         50Hz        X        X           O


    2-2-2. VIDEO
      - PAL, PAL-M, PAL-N
      - NTSC, NTSC4.43
      - SECAM




                                         -6-
3. Block Diagram




                   -7-
4. Description of Each Block

4-1. Block Diagram of Main IC and TP




                                       -8-
Description of Each Block


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




                                               -9-
Description of Each Block


    Y signal(input to IC505)
    Location : CC451




    Color signal(input to IC505)
    Location : CC456




                                   -10-
Description of Each Block


    CVBS signal(input to IC505)
    Location : CC455




  4-2-2. DTV/DVD signal
    Y signal(input to IC505)
    Location : CC445




                                  -11-
Description of Each Block


    Pb signal(input to IC505)
    Location : CC446




    Pr signal(input to IC505)
    Location : CC447




                                -12-
Description of Each Block


  4-2-3. PC(Personal Computer) signal
    R signal(input to IC505)
    Location : CC454




    G signal(input to IC505)
    Location : CC452




    B signal(input to IC505)
    Location : CC453




                                        -13-
Description of Each Block


    Horizontal sync(Output of IC505)
    Location : RC458




    Vertical sync(Output of IC505)
    Location : RC459




                                       -14-
Description of Each Block


  4-2-4. HDMI signal
    Location : RC465, RC466, RC467, RC468, RC469, RC470, RC471, RC472




  4-2-5. R/G/B PROCESSING(SCART1, TELETEXT R/G/B)
    R signal (input to IC505)
    Location : RC450




                                      -15-
Description of Each Block


    G signal(input to IC505)
    Location : RC448




    B signal(input to IC505)
    Location : RC449




                               -16-
Description of Each Block


  4-2-6. Audio signal processing, KEY, and LED
    - Flow Chart of Audio signal




    COMP-L sound
    Location : ZA225




                                         -17-
Description of Each Block


    IC602 input
    Location : RC685, RC687




    IC602 output
    Location : L606, L610




                              -18-
Description of Each Block


    SIF input
    Location : CC654




    Headphone out
    Location : RC611, RC612




                              -19-
Description of Each Block


    SPDIF out
    Location : RC655




    I2S input
    Location : RC622(CLK)




                            -20-
Description of Each Block


    Location : RC623(WS)




    Remote control signal
    Location : RC722




                            -21-
Description of Each Block


4-3. POWER PCB

   4-3-1. POWER SPEC
     



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