Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo TV-DVD DSL19V1WCD daewoo_lh19sd83d_lh22sd83d_dsl19v1wcd_lcs_dvd_combo

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.




Image preview - the first page of the document
daewoo_lh19sd83d_lh22sd83d_dsl19v1wcd_lcs_dvd_combo


>> Download daewoo_lh19sd83d_lh22sd83d_dsl19v1wcd_lcs_dvd_combo documenatation <<

Text preview - extract from the document
         LH19/22S83D SERVICE MANUAL

INDEX:

   PART 1Brief Introduction Of The LH19/22S83D
                 Schematic    Diagram Block
                  Printed   Circuit

   PART 2: Exploded view

   PART 3  Introduction
          IC

   PART 4: Detailed Circuit

   PART 5: Components List

   PART6: Debug Instruction
                                                                       5                                                     4                                                           3                                                              2                                                                        1
                                                                                                                                                                                                                                                                                                                                                         Part1:



D                                                                                                                                                                                                                                                                                                                                                                 D


                                                                                                                                 IR Board          Key Board                                 R     L
                                                                    INVERTER                                 D
                                                                                                         PANEL
                                                                     BOARD
                                                                                                                                                                                                         Loud Speaker

                                                                                                             ebug Connector
                                                                                                                 CON6
                                                                                                             TXD RXD GND     5V

                                                                                                                                                                     CON4
                                                                                   CON22
                                                                                                                 5V IR GND V- RED GREEN      GND V+ P+ P- MENU NC SOURCE POWER
                                                                                           LVDS Connector                          Key&IR Board Connector                        CON19

                                                                                                                                                                             Loud Speaker Connector



C                                                                                                                                                                                                                                                                              JP5                                                                                C




                CON2
                                                                               3.3V




                                         EN
                                                                                                                                  IR   GND
                                                                                                                                                                                                                                         JP2
                                                                                                                                                                                                                        NC GND SDA SCL
                                                                              5V




                                         GND
                                                                                                                                                                                                                                                                                     SW GND AGC GND SCL SDA GND IF GND




                                                                           JP1
                                                                                                                                                                                                                                                                                                                         XP203




                                                                                                                                                                                                                                                                 DVB-T Board




                                         12V
                                                                                                                                                                                                           CON37
                                                                                                                                                                                                 CON39
                                                                                                            9E19 TV Main Board
                                                                                                                                                                                                                                                                                                                                     Schematic Diagram




                                                                                                                                                                                                                                          Y GND C GND CVBS GND AL GND AR
                                                                                                                                                                                 CON15
B                                                                                                                          Y GND PB GND PR GND R L GND ON/OFF                                                                                                    JP1                                                                                              B




              12V 12V EN BR GND GND
                                                                                                                     CON11




                                      CON3
                                               Inverter Connector
                                                                                                                                                         DVD Signal Connector
                                         CON31




        12V
        GND
    DVD Power Con                                                   nector




                                                                                                            DVD Board                          DVD Keyboard



A                                                                                     Connecting Board                                                                                                                                                                                                                                                            A




                                                                       5                                                     4                                                           3                                                              2                                                                        1
   Printed Circuit


TV Main Board (Top View)




            Bottom view
TV Main Board
DVB Board (top view)




DVB Board(bottom view)
DVD Board (top view)




DVD Board(bottom view)
Part2:   Exploded view
Part3:
                                                IC Introduction

                                                                   OCP2030            SWITCHING BUCK REGULATOR


     General Description
 The OCP2030 is a buck topology of switching regulator for wide operating voltage applications field. The OCP2030
 includes a high current P-MOSFET, high precision reference (0.5V) for comparing output voltage with feedback
 amplifier, an internal dead-time controller and oscillator for controlling the maximum duty cycle and PWM frequency,
 and has power-on programmable soft start time and short circuit PMOS turn-off and auto re-start protection functions.

     Features
     Precision feedback reference voltage: 0.5V (2%)
     Wide supply voltage operating range: 3.6 to 20V
     Low current consumption: 3mA
     Internal fixed oscillator frequency: Typ. 360KHz
     Programmable Soft-Start function (SS)
     Short Circuit Shutdown and Auto Re-start function(ARSCP)
     Built-in P-MOSFET for 3A loading capability
     Package: SOP8

     Pin Configuration

              Top View
                                                 Name         No.     Status                Description
                                                 VCC           1        P         IC Power Supply (PMOS Source)
          1                   8                                                     Connecting with a Soft-start &
                                                SS/SCP         2        I
                                                                                      ARSCP timing capacitor
          2                   7
                                                   IN-         3        I           Error Amplifier Inverting Input
              OCP2030                                                              Error Amplifier Compensation
          3                   6                    FB          4        O
                                                                                               Output
          4                   5                                5
                                                 GND                    P                         IC Ground
                                                               6
                                                               7
                                                   LX                   O             PMOS High Current Output
                                                               8
     Block Diagram
                       1


                   Reference
                   Regulator                             Oscillator

                                                                                           Thermal
                      1.25V                                                                Shuntdown



      3                               36K                                      Output drive
                                                                               control circuits
                                       500
               0.5V

                                                           0.8V


      4

                                        Soft start&Auto Re-start
                                        S.C.P Circuits



                       5          6                2                                                      7       8
                                                                                                        AP1084

5A Low Dropout Positive Adjustable or Fixed-Mode Regulator

    Features                                                      General Description



◦ Jabse Service Manual Search 2020 ◦ Jabse Pravopis ◦ Other service manual resources online : FixyaeServiceinfo