LC-24LE250EK (serv.man2). (C model Supplement) - Sharp TV Service Manual (repair manual). Page 2

i   SPECIFICATIONS ......................................................................................................................   4 
ii  DIFFERENCES BETWEEN MODELS ……………………………………………………………….   5 
iii  IMPORTANT SERVICE SAFETY PRECAUTIONS ....................................................................   6 
iv  OPERATION MANUAL ..............................................................................................................   9 
V  DIMENSIONS ............................................................................................................................  12  
vi NEW PANEL IDENTIFICATION ………………………………………………………………………  13 
vii  CAUTION WHEN REMOVE THE REAR CABINET ...................................................................  17 
1. INTRODUCTION .........................................................................................................................  20 

1.1. General Block Diagram  ..............................................................................................  21 
1.2. MB60 Placement of Blocks .........................................................................................  22 

2. TUNER  .......................................................................................................................................  23 
     A. ST2156 Terrestrial and Cable TV Tuner 

 A.1 Description .................................................................................................................  23 

 A.2 Features ....................................................................................................................  23 

3. AUDIO AMPLIFIER STAGES ……………………………………………………………….….…….  26 

      A. Main Amplifier (TAS5719) (6-8 W option) .............................................................................  26 

  a. General Description ....................................................................................................  26 

  b. Features ......................................................................................................................  26 

  c. Pin Descriptions and functions.....................................................................................  27 

      B. Main Amplifier (TS4962M) (2,5 W. option) ............................................................................  29 

  a. General Description.....................................................................................................  29 

  b. Features ......................................................................................................................  29 
  c. Pin descriptions and functions .....................................................................................  29 

       C. Headphone Amplifier Stage ................................................................................................  31 

4. POWER STAGE..........................................................................................................................  32  
      FDC 642P .................................................................................................................................  33 

  a. General Description .....................................................................................................  33 

      TPS65251 ..................................................................................................................................  33 

  a. General Descriptions ....................................................................................................  33 

  b. Features .......................................................................................................................  34 

       MP1484 ....................................................................................................................................  36 
                a. General Descriptions ...................................................................................................  36 

                b. Features .......................................................................................................................  36 
       APL5910 ...................................................................................................................................  38 
                 a. General Descriptions ..................................................................................................  38 

                 b. Features ......................................................................................................................  38 
       LM1117 .....................................................................................................................................  40 
                  a. General Descriptions .................................................................................................. 40 

                  b. Features Descriptions ................................................................................................. 40 
5. MICROCONTROLLER – MSTAR MSD8WB9BX ......................................................................... 41 
                a. General Description ...................................................................................................... 41 

                b. Features .......................................................................................................................  42