Genius
TVB-S201 PRO e. Check REG3 Pin 2 Signal, Service Manual, REG3 PIN2, Version, Page
Troubleshooting
Parts list
c. Block Diagram
c. Check REG2 Pin 2 Signal
Testing Procedures
Service Manual
Page 9
Service Manual
e. Check REG3 Pin 2 Signal
REG3 PIN2
Version 1.0
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Page 8
Page 10
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Contents
TVB-S201 PRO
Service Manual
Block Diagram
Table of Contents
Testing Procedures
INTRODUCTION
Chapter 1. INTRODUCTION
c. Block Diagram
a. Hardware
b. Software
a. Testing flow chart
Chapter 2. Testing Procedures
Check Y301 X’TAL signal T Check U1 CLK signal T END
A T Check X1 X’TAL signal T Check OSC signal T
REPLACE X1,U22 REPLACE X2,U5,U1
REPLACE Y301,U301
L34 PIN1
b. Check VCC +5V
REG2.PIN
c. Check REG2 Pin 2 Signal
REG5 PIN2
d. Check REG5 Pin 2 Signal
REG3 PIN2
e. Check REG3 Pin 2 Signal
REG4 PIN2
f. Check REG4 Pin 2 Signal
U22 PIN26
g. Check X1,U22 Pin 26 X’TAL Signal
U1 PIN41 U5 PIN62
h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal
C322 PIN1
i. Check Y301 X’TAL Signal
U1 PIN58 U5 PIN66
j. Check U1 CLKSAA Signal
U1 PIN136
k. Check U1 RAMCLK Signal
Chapter
Troubleshooting Guide
Chapter 4. Removal and Replacement
Parts list
Chapter 6. Tools
Description
Parts number
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