Genius VideoWonder ProTV User 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

Service Manual
c. Check U1 Pin2 +3.3V
U1 PIN 2
Page6

Service Manual
d. Check U301 VCC +3.3V
C307
Page7

Service Manual
e. Check Y301 CLKIN signal(16MHZ)
C326
Page8

Service Manual
f.Check Check Y301 CLKOUT signal(16MHZ)
C323
Page9