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Genius TVB-S201 PRO manual

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Table of contents for the manual

  • Page 1

    Service Manual TVB-S201 PRO[...]

  • Page 2

    S e r v i c e M a n u a l T able of Contents TVB-S201 PRO ........................................................................................................................... 0 Chapter 1. INTRODUCTION ........................................................................................................... 2 a. Hardware ....................[...]

  • Page 3

    S e r v i c e M a n u a l Chapter 1. INTRODUCTION a. Hardwar e ♦ PC586 above ♦ Connection port ： VGA b. Softwar e ♦ W in98 above c. Block Diagram TV VGA VGA (Silicon T uner) IN OUT S-V ideo V ideo PIP select Module SAA-7135 processor STV -108A PIP Composite & Selector Audio Line in Audio Switch MCU + OSD Audio Amplifie SDRAM SM-602 Audi[...]

  • Page 4

    S e r v i c e M a n u a l Chapter 2. T esting Pr ocedur es a. T esting flow chart T T T T REPLACE REG3 T REPLACE ADAPTER REPLACE REG2 F F Check REG5 Pin 2 +2.5V REPLACE REG5 Check REG4 Pin 2 +1.8V F REPLACE REG4 Check REG3 Pin 2 +3.3V Check REG2 Pin 2 +3.3V Check VCC +5V ST AR T A F F V ersion 1.0 P age 3[...]

  • Page 5

    S e r v i c e M a n u a l A T Check X1 X’T AL signal Check X2 OSC signal Check Y301 X’T AL signal T Check U1 CLK signal REPLACE U1 REPLACE Y301,U301 F REPLACE X2,U5,U1 T REPLACE X1,U22 F T F T F END V ersion 1.0 P age 4[...]

  • Page 6

    S e r v i c e M a n u a l b. Check VCC +5V L34 PIN1 V ersion 1.0 P age 5[...]

  • Page 7

    S e r v i c e M a n u a l c. Check REG2 Pin 2 Signal REG2.PIN 2 V ersion 1.0 P age 6[...]

  • Page 8

    S e r v i c e M a n u a l d. Check REG5 Pin 2 Signal REG5 PIN2 V ersion 1.0 P age 7[...]

  • Page 9

    S e r v i c e M a n u a l e. Check REG3 Pin 2 Signal REG3 PIN2 V ersion 1.0 P age 8[...]

  • Page 10

    S e r v i c e M a n u a l f. Check REG4 Pin 2 Signal REG4 PIN2 V ersion 1.0 P age 9[...]

  • Page 11

    S e r v i c e M a n u a l g. Check X1,U22 Pin 26 X’T AL Signal U22 PIN26 V ersion 1.0 P age 10[...]

  • Page 12

    S e r v i c e M a n u a l h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal U1 PIN41 U5 PIN62 V ersion 1.0 P age 1 1[...]

  • Page 13

    S e r v i c e M a n u a l i. Check Y301 X’T AL Signal C322 PIN1 V ersion 1.0 P age 12[...]

  • Page 14

    S e r v i c e M a n u a l j. Check U1 CLK_SAA Signal U1 PIN58 U5 PIN66 V ersion 1.0 P age 13[...]

  • Page 15

    S e r v i c e M a n u a l k. Check U1 RAM_CLK Signal U1 PIN136 V ersion 1.0 P age 14[...]

  • Page 16

    S e r v i c e M a n u a l Chapter 3. T r oubleshooting Guide Problems Condition Probable Reasons Solutions 1. Blank Screen 1. Sound only , no picture. 1. Parts failure. Change all the part s below 1. X2 2. REG5 3. U1 2. Buttons don’t work 1. Buttons malfunction. 1. Mi cro SW NG 1.Change Micro SW 3. incorrect color display 1. VGA output malfunctio[...]

  • Page 17

    S e r v i c e M a n u a l Chapter 4. Removal and Replacement Step Description Picture 1. T urn the device upside down with the ports facing you. Device before disassemble. 2.Remove screws Remove the rubber protectors at the corners and take out the screws. 3.Open the case Remove bottom cover . 4. Remove PCB from case Remove the PCB by lifting it an[...]

  • Page 18

    S e r v i c e M a n u a l Chapter 5. Parts list Description Parts number Description Parts number U1 102100010800 REG5 101900111702 U22 102100060200 REG4 101900111707 U5 102100713500 REG2,REG3 101900886000 X1 12MHZ 201511200000 X2 OSC24.576MHZ 201522457600 Y301 16MHZ 201511600000 SW1~SW6 TACT SWITCH 201200300404 Chapter 6. T ools 1. Screwdriver cro[...]