B. Check VCC +5V, Service Manual, L34 PIN1 | Genius TVB-S201 PRO

b. Check VCC +5V

Service Manual

b. Check VCC +5V

L34 PIN1

Version 1.0

Page 5

Image 6

Genius TVB-S201 PRO service manual b. Check VCC +5V, Service Manual, L34 PIN1, Version, Page

Contents

Service Manual TVB-S201 PRO Testing Procedures Table of ContentsBlock Diagram INTRODUCTION a. Hardware c. Block DiagramChapter 1. INTRODUCTION b. Software Chapter 2. Testing Procedures a. Testing flow chart REPLACE 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,U301 b. Check VCC +5V L34 PIN1 c. Check REG2 Pin 2 Signal REG2.PIN d. Check REG5 Pin 2 Signal REG5 PIN2 e. Check REG3 Pin 2 Signal REG3 PIN2 f. Check REG4 Pin 2 Signal REG4 PIN2 g. Check X1,U22 Pin 26 X’TAL Signal U22 PIN26 h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal U1 PIN41 U5 PIN62 i. Check Y301 X’TAL Signal C322 PIN1 j. Check U1 CLKSAA Signal U1 PIN58 U5 PIN66 k. Check U1 RAMCLK Signal U1 PIN136 Troubleshooting Guide Chapter Chapter 4. Removal and Replacement Description Chapter 6. ToolsParts list Parts number