Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Video-DVD DAEWOO_DPT-2500N_Portable_TFT

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DAEWOO_DPT-2500N_Portable_TFT


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                      S/M No. : PT2500N001




 Service Manual

 Model: DPT-2500N




 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




                                               JUL. 2007
TABLE OF CONTENTS
SECTION 1. CONTROL AND FUNCTION............................................................................2

SECTION 2. BLOCK DIAGRAM...........................................................................................3

SECTION 3. TROUBLE SHOOTING FLOW CHART...........................................................4

SECTION 4. SHEMATIC DIAGRAM.....................................................................................5

SECTION 5. CABINET EXPLODE VIEWS.........................................................................7

SECTION 6. PARTS LIST...................................................................................................9




Many electrical and mechanical parts in this chassis have special safety characteristics.

These characteristics often pass unnoticed and protection afforded by them cannot necessarily be

obtained by using replacement components rated for higher voltage , wattage ,etc.

Replacement parts that have these special safety characteristics are identified in this manual.

And its supplements, electrical components having such features are identified by  in the parts List.




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

substitute replacement parts that do not have the same safety characteristics as specified in the

parts list may create shock , fire , or other hazards.




                                                               1
SECTION1. CONTROL AND FUNCTION
                          1

                          2
                                 FRONT VIEW
                          3
                                 1. PANEL
                                 2. CHANNEL (-)
                          4      3. CHANNEL (+)
                                 4. BATTERY COVER




                          5

                                 BACK VIEW
                                 5. ANTENNA
                                 6. STAND
                          6




                          7


                                 LEFT VIEW
                                 7. UHF/VHF
                          8      8. AV IN
                                 9. PHONE


                          9




                          10


                                 RIGHT VIEW
                                 10. BRIGHTNESS
                          11     11. VOLUME
                                 12. DC 6V



                          12



                          2
SECTION2. BLOCK DIAGRAM




                          3
SECTION3. TROUBLE SHOOTING FLOW CHART
     A:
                     NO Raster

                          YES
                Check DC input jack
                Check battery power
                       (6V)

                          NO
                  Check back-light
                  connection wire

                          NO
                   Check Q401,Q402
                   Collector output
                        (5.4V)

                          NO

             Check T401 Hi-Voltage output
                        230Vrms


     B:


                      NO Sound

                          YES

                    Check speaker
                   wire connection

                          NO

                 Check IC104 pin6 Vcc
                         (6V)

                          NO

                 Check IC104 Voltage



                          4
SECTION4.SHEMATIC DIAGRAM




                            5
                    1                                                                                                     2                                                                                                                                                                                                                                                                                 3                                                                                            4                                                                                                                          5                                                                                                                6

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  R532 100                               D16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         R538         100                 C517 .1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           D4




                                  R2 52 5 60
                                                                                                               R238 330K                                                                                                                                                                                                                                       R236 680K                                                                                                                                                                                                                                                                                                                                 R540         100                                  D6




                                                                                                                                                                                                        R2 41 1 0K R2 40 3 9K
                                               R253                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      R539         100




                                                                                                                                                                                                                                                                                       R2 32 1 K
                          R2 51
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           D5




                           5 60
                                               560                                                                                                               C234                                                                                  R231                                                                                                                                                                                   C215            10U/16V
                                                                                                                                                                 1/50                                                                                  1K




                                                                                                                                                                                                                                                                                                                           1 U R2 33
                                                                                                               C203 C232                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 R541          100




                                                                                                                                                                                                                                                                                                                                5 60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              C528 C526 C527 C525                                                                                                                                        D20
D                                                                                                              0.01 .0068                                                                                                                              C233                                                                                                                                                                                   C217            10/16V                                                                                                                                                                                                                                                                                                                   D
                                                                                                                                                                                                                                                         .01                                                                                                                                                                                                                                                                                                                                  220P 220P 220P 220P




                                                                                                                                                   R2 42 1 M




                                                                                                                                                                                                                                                                                                                                                               1U



                                                                                                                                                                                                                                                                                                                                                                                                          1U
                                                                                             C200                                                                                                                                                                                                                                                                                                                                             C219            10/16V                                                                                                                                                                                                                                                                                     D13
                                                                                             100P                                                                                                                                                                                        C227
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         D1




                                                                                                                                                                                                                                                                                                                           C2 14



                                                                                                                                                                                                                                                                                                                                                               C2 16



                                                                                                                                                                                                                                                                                                                                                                                                          C2 18
                                                                                            L201                                                                                                                                                                                         1U




                                                                           H FIL TE R
                                                                                            18UH




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        GND




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ST H L
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            V CC
                                                                                        2           1 6                4547                                         46                                                          48                                         38                            37 36              19                20                   21                    22                23             24                                                                                                                                                                                                                                                                                                                          R2.5 NC




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              R1 .8 N C
                                                                                                                                                                             AGC FIL T E R
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         R1.8




                                                                                                                                 AGC OUT




                                                                                                                                                                                                                                         PICTURE




                                                                                                                                                                                                                                                                                                          SYNC OUT




                                                                                                                                                                                                                                                                                                                                                                                                              B DC DET

                                                                                                                                                                                                                                                                                                                                                                                                                           B OUT
                                                                                                                                                                                                                                                                            SYNC SEP
                                                                                                     COL OR
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            0




                                                                                                                                                                                                                                                                                                                                                                           G DC DET
                                                                                                                                                                                                                                                                                                                                R DC DET
                                                                                                                                                                                                                                                                                                                                                                                                                                                              R219




                                                                                                      T RAP
                                                      C201 10/16V 3




                                                                                                                                 CLAMP




                                                                                                                                                                                                                                                                                                          SYNC IN
                                                                                                                                                                                                                                                                                                                                                                                                                                          26




                                                                                                                                                                                                                                                                                                                                                                                                  G OUT
                                                                                                                                                                                                                                                                                                                                                       R OUT




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              22



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               19
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               18




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              23

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              21
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              20



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               15
                                                                              VIDEO IN                                                                                                                                                                                                                                                                                                                                             BLK                                                                                                                                                                                                                                                                                                      R2.5          0
                                                       R237     18K 44                                                                                                                                                                                                                                                                                                                                                                                        0




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ST H R
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           T E ST
                                                                                                                                                                                                                                                                                                                                                                                                                                          29




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                CK 3 A
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         CK 2 A
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     T E ST




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CK 1 A
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           CK V
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   RC2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      36 35 34 33 32 31 30 29 28 27 26 25




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    9 10 11 12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     PD <->
                                                                              F ADJ                                                                                                                                                                                                                                                                                                                                                 FRP                                                                                                                                        OSC/O                                                                                                      VCC
                                                                                                                                                                                                                                                                                                                                                                                                                                          32                      R45     560
                                                        C208 .1       5
                                                                                                                                                                                                                                                                                                                                                                                                                               BRIGHT                                                                                                                                                                                                                                                                                                       R537 100 D18           D1
                                                                                        GND                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        OSC/I                                                                                                                                                                                  STHL
                        R254                                                                                                                                                                                                                                                                                                                                                                                                               C226                                                                                                                                                                                                                                          STV2                                                                                     1
                                                                                                                                                                                                                                                                                                                                                                                                                                                            .01                 47K                                                                                                                                                                                                                                                                                D2     OEH
                        27K                                           11                                                                                                                                                                                                                                                                                                                                                                  28                      R223 22k R222                                                                                                                                                                                                                                                                          D22       D3     QIH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  2
                                                        R211 1M                    ACC FILTER                                                                                                                                                                                                                                                                                                                      SUB BRIGHT B                                            R220 47K                                                                                            VSYO                                                                                                      STV1                                                                                     3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      R536         D4     CPH1
                                                                                                                                                                                                                                                                                                                                                                                                                                           C223                                                                                                                                                                                                                                                                                                                                   4
                                                                                                                                                                                                                                                                                                                                                                                                                                                            .01                                                                                                                                                                                                                                                                                                    D5     CPH2
                        R255                   R215          C212 .47 15                                                                                                                                                                                                                                                                                                                                                                  27                      R221 22k                                                                                                         TEST                                                                                        A18(RC1)                                                           C523 100         D6     CPH3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  5
                        39K                                                        APC FILTER                                                                                                                                                                                                                                                                                                                      SUB BRIGHT R                                                  R209 10k                                                                                                                                                                                                                                                         220P                            6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               RESET                                                                                                                                                                               D7     GND
                                               5K6                                                                                                                                                                                   IC201                                                                                                                                                                                                                                                                                                                                                                                                                                               Q1HA                                                                                     7




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    8
                                                             C213                                                                                                                                                                                                                                                                                                                                                                          C222             .01                                                                                                                                                                                                                                                                                                    D8     B
                                                 R216                                                                                                                                                                                                                                                                                                                                                                                                             R210 22k                                                                                                                                                           IC501                                                                                    C524                                                8
                                                              .01                                                                                                                                                                 IR3Y31                                                                                                                                                                                                  10                                                                                                                                       V SYNC IN                                                                                                                                                                       D9     G
                                                 8K2                                                                                                                                                                                                                                                                                                                                                                                                                             R227 22k                                                                                                                                                                                                                                                                                         9




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    7
                                                                                                                                                                                                                                                                                                                                                                                                            RGB AMPLITUDE                                                                                                                                                                                                                                                                GND                                  220P
                        R256                                          14                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             UPS015                                                                                                                        D10    R
                                                                                        VCO IN                                                                                                                                                                                                                                                                                                                                                C207                                                                                                                                                                                                                                                                                                                                10
                        10K                                                                                                                                                                                                     10-20-0129                                                                                                                                                                                                                  .01 R22839k                                                                                                                                                                                                                                                                                            D11    NC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    10-10-1053                                                                                                                                    11




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    6
C                                                                                                                                                                                                                                                                                                                                                                                                                                         31                                                                                                                                       UD                                                                                                    TEST                                                                      D12    L/R          C
                         S204  



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