Genius VideoWonder ProTV Service Manual

Service Manual

VideoWonder ProTV

Service Manual

Table of Contents

VideoWonder ProTV `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
cCheck VCC +3.3V 6
d.Check U301 VCC +3.3V 7
eCheck Y301 CLKIN signal (16MHZ) 8
fCheck Y301 CLKOUT signal(16MHZ) 9
gCheck U401 VCC 3.3V 10
hCheck SIF_CLK signal 11
iCheck X3 CLK (24.576MHZ) 12
jCheck U2 SIF_CLKOUT signal 13

k.Check X2 CLK signal(4MHZ) 14

Chapter 3. Troubleshooting Guide

15

Chapter 4. Removal and Reqlacement 16

Chapter 5. Parts list

17

Chapter6. Tools 18

Page1

Service Manual

Chapter 1. INTRODUCTION

a. Hardware

PIII 800 MHZ or higher above
256M RAM
S-Video
AV
Audio

b. Software

Win2000 / XP above

c. Block Diagram

Page2

Service Manual

Chapter 2. Testing Procedures

a. Testing flow chart

REPLACE U1

REPLACE U1

REPLACE U301(C307)

REPLACE Y301(C326)

Chcek VCC
+5V

Chcek VCC
+3.3V

Chcek U301
+3.3V

Chcek16MHZ

CLKIN

START

Page3

Service Manual

REPLACE U401(C524)

REPLACE U401(R414)

REPLACE Y301(C323)

Chcek 16MHZ

CLKOUT

Chcek 8290
+3.3V

Chcek 24.576
MHZ

Chcek 8290
SIF OUT

REPLACE X3(C20)

END

Chcek 8275
CLKOUT

Chcek U5 4MHZ

REPLACE U5(R11)

REPLACE X3(R6)

Page4

Service Manual

b. Check U1Pin3 +5V

U1 PIN 3

Page5