Service Manuals, User Guides, Schematic Diagrams or docs for : LENCO LCD-TV TFT2001 TFT-2001 =20_tftsm_293

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TFT-2001 =20_tftsm_293


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                                         20" TFT TV

                             SERVICE MANUAL




PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com
                                                                           TABLE OF CONTENTS
               1.     INTRODUCTION.......................................................................................................................................1
               2.     TUNER ......................................................................................................................................................1
               3.     IF PART (TDA988X)..................................................................................................................................1
               4.     MULTI STANDARD SOUND PROCESSOR ............................................................................................1
               5.     AUDIO AMPLIFIER STAGE WITH AN7522 .............................................................................................2
               6.     POWER.....................................................................................................................................................2
               7.     MICROCONTROLLER SDA55XX ............................................................................................................2
                  7.1. General Features...................................................................................................................................2
                  7.2. External Crystal and Programmable Clock Speed ................................................................................2
                  7.3. Microcontroller Features ........................................................................................................................2
                  7.4. Memory..................................................................................................................................................2
                  7.5. Display Features....................................................................................................................................2
                  7.6. ROM Characters....................................................................................................................................3
                  7.7. Acquisition Features ..............................................................................................................................3
                  7.8. Ports ......................................................................................................................................................3
               8.     SERIAL ACCESS CMOS 16K (2048*8) EEPROM ST24C16 ..................................................................3
               9.     CLASS AB STEREO HEADPHONE DRIVER TDA1308 ..........................................................................3
               10.    SAW FILTERS ..........................................................................................................................................3
               11.    IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM ........................................................................4
                  11.1.    LM1117 ..............................................................................................................................................4
                    11.1.1.   General Description..................................................................................................................4
                    11.1.2.   Features .....................................................................................................................................4
                    11.1.3.   Applications ..............................................................................................................................4
                    11.1.4.   Connection Diagrams...............................................................................................................4
                  11.2.    LM2576 ..............................................................................................................................................5
                    11.2.1.   General Description..................................................................................................................5
                    11.2.2.   Features .....................................................................................................................................5
                    11.2.3.   Pin description ..........................................................................................................................5
                  11.3.    LM317T ..............................................................................................................................................6
                    11.3.1.   Description ................................................................................................................................6
                    11.3.2.   Features .....................................................................................................................................6
                  11.4.    TFMS5360 .........................................................................................................................................6
                    11.4.1.   Description ................................................................................................................................6
                    11.4.2.   Features .....................................................................................................................................6
                  11.5.    ST24LC21 ..........................................................................................................................................7
                    11.5.1.   Description ................................................................................................................................7
                    11.5.2.   Features .....................................................................................................................................7
                    11.5.3.   Pin connections ........................................................................................................................7
                  11.6.    SST37VF040......................................................................................................................................8
                    11.6.1.   Description ................................................................................................................................8
                    11.6.2.   Features .....................................................................................................................................8
                    11.6.3.   Pin Description .........................................................................................................................8
                  11.7.    TEA5114A..........................................................................................................................................9
                    11.7.1.   General description ..................................................................................................................9
                    11.7.2.   Features .....................................................................................................................................9
                    11.7.3.   Pin Connections .......................................................................................................................9
                  11.8.    TEA6415 ..........................................................................................................................................10
                    11.8.1.   General description ................................................................................................................10
                    11.8.2.   13.5.2.Features........................................................................................................................10
                    11.8.3.   13.5.3.Pinning..........................................................................................................................10
                  11.9.    VPC3230D .......................................................................................................................................11
                    11.9.1.   General Description................................................................................................................11
                    11.9.2.   Pin Connections and Short Descriptions.............................................................................11
                  11.10. SDA55XX (SDA5550) ......................................................................................................................13
                    11.10.1. General description ................................................................................................................13
                  11.11. TDA9885/86 .....................................................................................................................................14
                    11.11.1. General description ................................................................................................................14


                                                                                                 i
               20" TFT TV Service Manual                                                                                                                     24/10/2003

PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com
                   11.11.2. Features ...................................................................................................................................14
                   11.11.3. Pinning.....................................................................................................................................14
                 11.12. TDA1308 ..........................................................................................................................................15
                   11.12.1. General Description................................................................................................................15
                   11.12.2. Features ...................................................................................................................................15
                   11.12.3. Pinning.....................................................................................................................................15
                 11.13. AN7522N..........................................................................................................................................15
                   11.13.1. General description ................................................................................................................15
                   11.13.2. Pin Descriptions .....................................................................................................................15
                 11.14. PI5V330 ...........................................................................................................................................16
                   11.14.1. General description ................................................................................................................16
                   11.14.2. Features ...................................................................................................................................16
                   11.14.3. Pin Descriptions .....................................................................................................................16
                 11.15. GM6015 ...........................................................................................................................................17
                   11.15.1. General description ................................................................................................................17
                   11.15.2. Features ...................................................................................................................................17
                 11.16. SAA3010T........................................................................................................................................18
                   11.16.1. Description ..............................................................................................................................18
                   11.16.2. Features ...................................................................................................................................18
                   11.16.3. Pinning.....................................................................................................................................18
                 11.17. AD9883A..........................................................................................................................................19
                   11.17.1. General description ................................................................................................................19
                   11.17.2. Features ...................................................................................................................................19
                   11.17.3. Pin Descriptions .....................................................................................................................19
                 11.18. MC141585........................................................................................................................................22
                   11.18.1. General description ................................................................................................................22
                   11.18.2. Features ...................................................................................................................................22
                   11.18.3. Pin Description .......................................................................................................................22
                 11.19. MC34063..........................................................................................................................................24
                   11.19.1. Description ..............................................................................................................................24
                   11.19.2. Features ...................................................................................................................................24
                   11.19.3. Pin connections ......................................................................................................................24
                 11.20. MSP34X0G ......................................................................................................................................25
                   11.20.1. Introduction .............................................................................................................................25
                   11.20.2. Features ...................................................................................................................................25
                   11.20.3. Pin connections ......................................................................................................................26
               12.   SERVICE MENU SETTINGS..................................................................................................................28
                 12.1.   ADJUST MENU SETTINGS ............................................................................................................28
                 12.2.   OPTIONS MENU SETTINGS ..........................................................................................................29
                 12.3.   APS WSS TEST MENU...................................................................................................................33
               13.   BLOCK DIAGRAM ..................................................................................................................................34
               14.   CIRCUIT DIAGRAMS .............................................................................................................................38




                                                                                             ii
               20" TFT TV Service Manual                                                                                                               24/10/2003

PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com
              1. INTRODUCTION
              20" TFT-LCD TV is a Progressive TV control system based on the 



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