Genius TVB-S201 PRO Table of Contents, Introduction, Block Diagram, Testing Procedures

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Table of Contents

Service Manual

Table of Contents


TVB-S201 PRO			0
Chapter 1.		INTRODUCTION	2
a.	Hardware		2
b.	Software		2
c.	Block Diagram		2
Chapter 2.		Testing Procedures	3
a. Testing flow chart			3
b. Check VCC +5V			5
c. Check REG2 Pin 2 Signal			6
d. Check REG5 Pin 2 Signal			7
e. Check REG3 Pin 2 Signal			8
f. Check REG4 Pin 2 Signal			9
g. Check X1,U22 Pin 26 X’TAL Signal			10
h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal			11
i. Check Y301 X’TAL Signal			12
j. Check U1 CLK_SAA Signal			13
k. Check U1 RAM_CLK Signal			14
Chapter 3.		Troubleshooting Guide	15
Chapter 4. Removal and Replacement			16
Chapter 5.		Parts list	17
Chapter 6.		Tools	17

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Contents Service Manual TVB-S201 PROTesting Procedures Table of ContentsBlock Diagram INTRODUCTIONa. Hardware c. Block DiagramChapter 1. INTRODUCTION b. SoftwareChapter 2. Testing Procedures a. Testing flow chartREPLACE X1,U22 REPLACE X2,U5,U1 A T Check X1 X’TAL signal T Check OSC signal TCheck Y301 X’TAL signal T Check U1 CLK signal T END REPLACE Y301,U301b. Check VCC +5V L34 PIN1c. Check REG2 Pin 2 Signal REG2.PINd. Check REG5 Pin 2 Signal REG5 PIN2e. Check REG3 Pin 2 Signal REG3 PIN2f. Check REG4 Pin 2 Signal REG4 PIN2g. Check X1,U22 Pin 26 X’TAL Signal U22 PIN26h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal U1 PIN41 U5 PIN62i. Check Y301 X’TAL Signal C322 PIN1j. Check U1 CLKSAA Signal U1 PIN58 U5 PIN66k. Check U1 RAMCLK Signal U1 PIN136Troubleshooting Guide ChapterChapter 4. Removal and Replacement Description Chapter 6. ToolsParts list Parts number