Genius
TVB-S201 PRO d. Check REG5 Pin 2 Signal, Service Manual, REG5 PIN2, Version, Page
Troubleshooting
Parts list
c. Block Diagram
c. Check REG2 Pin 2 Signal
Testing Procedures
Service Manual
Page 8
Service Manual
d. Check REG5 Pin 2 Signal
REG5 PIN2
Version 1.0
Page 7
Page 7
Page 9
Image 8
Page 7
Page 9
Contents
Service Manual
TVB-S201 PRO
Table of Contents
Block Diagram
Testing Procedures
INTRODUCTION
c. Block Diagram
Chapter 1. INTRODUCTION
a. Hardware
b. Software
Chapter 2. Testing Procedures
a. Testing flow chart
A T Check X1 X’TAL signal T Check OSC signal T
Check Y301 X’TAL signal T Check U1 CLK signal T END
REPLACE X1,U22 REPLACE X2,U5,U1
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
Chapter 6. Tools
Parts list
Description
Parts number
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