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Genius TVB-S201 PRO Introduction, a. Hardware, b. Software, c. Block Diagram, I2C BUS

Models: TVB-S201 PRO

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Service Manual

Chapter 1. INTRODUCTION

a.Hardware

♦PC586 above

♦Connection port ： VGA

b.Software

♦Win98 above

c.Block Diagram

TV (Silicon Tuner)

S-Video

SAA-7135

Composite &

Audio Line in

I2C BUS

Video processor STV-108A

VGA			VGA
IN			OUT

PIP select Module

PIP

Selector

	Audio Switch
	Audio Amplifie		SDRAM

		Audio Selector



PC audio line in	Audio out		EEPROM
PC audio line in	Audio out		EEPROM

MCU + OSD

SM-602

Button input

Version 1.0

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Genius TVB-S201 PRO service manual Introduction, a. Hardware, b. Software, c. Block Diagram, I2C BUS

Contents

TVB-S201 PRO Service ManualINTRODUCTION Table of ContentsBlock Diagram Testing Proceduresb. Software c. Block DiagramChapter 1. INTRODUCTION a. HardwarePage Chapter 2. Testing Proceduresa. Testing flow chart VersionREPLACE X1,U22 REPLACE X2,U5,U1 Service ManualA T Check X1 X’TAL signal T Check OSC signal T Check Y301 X’TAL signal T Check U1 CLK signal T ENDVersion b. Check VCC +5VService Manual L34 PIN1Version c. Check REG2 Pin 2 SignalService Manual REG2.PINVersion d. Check REG5 Pin 2 SignalService Manual REG5 PIN2Version e. Check REG3 Pin 2 SignalService Manual REG3 PIN2Version f. Check REG4 Pin 2 SignalService Manual REG4 PIN2Page g. Check X1,U22 Pin 26 X’TAL SignalU22 PIN26 VersionVersion h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC SignalService Manual U1 PIN41 U5 PIN62Version i. Check Y301 X’TAL SignalService Manual C322 PIN1Version j. Check U1 CLKSAA SignalService Manual U1 PIN58 U5 PIN66Version k. Check U1 RAMCLK SignalService Manual U1 PIN136Chapter Troubleshooting GuideChapter 4. Removal and Replacement Description Chapter 6. ToolsParts list Chapter