Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo TV CP-520V chassis Daewoo+DTX-21G2+DTX-21B4+DTX-21U7+ch.+CP-520V+Service+Manual

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Daewoo+DTX-21G2+DTX-21B4+DTX-21U7+ch.+CP-520V+Service+Manual


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                                                 P/N:TCP520VEF0


Service Manual
COLOR Television

CHASSIS : CP-520V
Model : DTX-21G2/21B4/21U7




   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.




                                                        Dec. 2006
CP-520V Service Manual



                                 CONTENTS

DOCUMENT HISTORY                                           3

1 MAIN FEATURES                                         4
   1.1 SPECIFICATIONS                                   4
     1.1.1 GENERAL                                      4
     1.1.2 EURO-SCART 1 (21 Pin)                        4
     1.1.3 EURO-SCART 2 (21 Pin)                        5
   1.2 CHANNEL/FREQUENCY TABLE                          6
2 SAFETY INSTRUCTION                                    9
3 ALIGNMENT INSTRUCTIONS                               10
   3.1 MICROCONTROLLER CONFIGURATION : SERVICE MODE    10
   3.2 SERVICE MODE NAVIGATION                         10
   3.3 MICROCONTROLLER CONFIGURATION : OPTION BITS     10
   3.4 OPTION 1                                        11
   3.5 OPTION 2                                        11
   3.6 NVM DEFAULT SETTING                             12
   3.7 TV SET ALIGNMENT                                14
     3.7.1 G2 ALIGNMENT                                14
     3.7.2 WHITE BALANCE                               14
     3.7.3 FOCUS                                       14
     3.7.4 VERTICAL GEOMETRY                           14
     3.7.5 HORIZONTAL PICTURE CENTRING                 14
     3.7.6 AGC                                         14
4 IC DESCRIPTION                                       15
   4.1 UOC III SERIES                                  15
     4.1.1 IC MARKING AND VERSION                      15
     4.1.2 BLOCK DIAGRAM                               16
     4.1.3 PINNING                                     17
     4.1.4 FEATURES                                    20
   4.2 LA42032 STEREO AUDIO AMPLI FIER                 23
     4.2.1 FEATURES                                    24
   4.3 LA78040 VERTICAL AMPLIFIER                      26
     4.3.1 FEATURES                                    26
   4.4 24WC16 - 16 KB EEPROM                           28
   4.5 STR - W6754                                     29
     4.5.1 GENERAL DESCRIPTION                         29
     4.5.2 FEATURES                                    29
     4.5.3 BLOCK DIAGRAM                               29
     4.5.4 PIN DESCRIPTION                             30
     4.5.5 CONTROL PART - ELECTRICAL CHARACTERISTICS   30



                                                       1
                                                          CP-520V Service Manual




5 CIRCUIT DESCRIPTION                                                        32
  5.1 BLOCK DIAGRAM                                                          32
  5.2 FUNCTIONAL DESCRIPTION OF VIDEO PROCESSOR                              33
    5.2.1 Vision IF amplifier                                                33
    5.2.2 QSS sound circuit                                                  33
    5.2.3 FM demodulator                                                     33
    5.2.4 Audio input selector and volume contro                             34
      5.2.4.1 STEREO AND AV STEREO VERSIONS                                  34
      5.2.4.2 MONO VERSIONS                                                  34
    5.2.5 CVBS and Y/C input signal selection                                34
      5.2.5.1 ALL VERSIONS                                                   34
    5.2.6 Synchronisation circuit                                            35
    5.2.7 Horizontal and vertical drive                                      36
    5.2.8 Chroma, luminance and feature processing                           36
    5.2.9 Colour decoder                                                     37
    5.2.10 RGB output circuit                                                38
    5.2.11 I2C-BUS USER INTERFACE DESCRIPTION                                40
  5.3 GENERAL DESCRIPTION OF THE TV SOUND OF SOUND PROCESSOR                 40
    5.3.1 Supported standards                                                41
  5.4 FUNCTIONAL DESCRIPTION SOUND PROCESSOR                                 42
    5.4.1 The UOC III TV Sound Concept                                       42
    5.4.2 Functional Overview Of the digital controller sound part           43
    5.4.3 Demodulator and decoder                                            44
6 SERVICE PARTS LIST                                                         47
  6.1 DTX-21G2FZP-SB                                                         47
7 EXPLODED VIEW                                                              52
  7.1 DTX-21G2                                                               52
  7.2 DTX-21B4                                                               53
  7.3 DTX-21U7                                                               54
8 PRINTED CIRCUIT BOARD                                                      55
  8.1 4859813693(OLD PCB)                                                    55
  8.2 4859816393(NEW PCB)                                                    56
9 SCHEMATIC DIAGRAM                                                          57
  9.1 CP-520V                                                                57




                                                                             2
                                                              CP-520V Service Manual

DOCUMENT HISTORY


VERSION  DATE                                 COMMENTS
 V1.46  07/07/06 Creation of document (Author JS KIM) for project CP520 50Hz TV.




                                                                                   3
                                                                    CP-520V Service Manual

1     MAIN FEATURES

1.1    SPECIFICATIONS

1.1.1 GENERAL

         TV standard                PAL - SECAM B/G D/K, PAL I/I, SECAM L/L'
         Colour system        Tuner PAL, SECAM
                              AV    PAL, SECAM, PAL 60, NTSC M, NTSC 4.43
         Sound system               NICAM B/G, I, D/K, L,
                                    FM 2Carrier B/G, D/K
         Power                      59W
         consumption


         Sound Output               4.5W x 2 (at 60% mod, 10% THD)
         Power
         Speaker                    12W 8 ohm x2

         Teletext system            10 pages memory FASTEXT (FLOF or TOP)
         Aerial input               75 ohm unbalanced
         Channel coverage           Off-air channels, S-cable channels and hyperband
         Tuning system              frequency synthesiser tuning system
         Visual screen size         51cm


         Channel indication         On Screen Display
         Program Selection          100 programmes
         Aux. terminal              EURO-SCART 1 : Audio / Video In and Out, R/G/B
                                    In, Slow and Fast switching.
                                    EURO-SCART 2 : Audio / Video In and Out, SVHS
                                    In.
                                    AV3 : Audio-Video Jack on front of cabinet.
                                    Headphone jack (3.5 mm) on front of cabinet
                                    SVHS3 (option) : Jack on front of cabinet 



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