AITech HDTV USB User Manual

Playback setting 
 
z MPEG2 accelerator setting 
If your VGA card supports DxVA function, you may enable this function to share 
CPU loading 
z VBI setting 
If your TV program has pixel mixing in video edge, you may select here to cut it out 
z Force Decoding noisy video frames setting 
You may select here to force software to play TV program with bad reception 
z AC3 Audio Pass_Through (SPDIF output) 
If you have Dolby sound card, you may enable this function to get 5.1 ch\
annel 
sound effects. (Not...

 12
z  Aspect ratio setting/ Full screen setting 
You may select TV program to show in different aspect ratio 
z  Stop playback while signal quality below 
You may stop playing TV program when signal  strength is below a specific degree    

System setting 
 
z Capture setting 
You may select to capture signal or multiple frames in native resolution or aspect 
ration (small size picture) format. You can set time and interval for multi-capture. 
z Power management 
If you choose “Reject”, Digital TV will stop your system from getting into hibernate 
mode. 
z Predefined Program Classes 
You may change Predefined program classes to classify program in “Program List” 
page. 
z Remote Controller LCN channel selection support 
You may set remote...

 14
z  Parental control password 
You may set password to specific channels to avoid children from watching adult 
programs. Password will be  required when anyone want to watch these specific 
channels. 
z   Control panel setting 
You may the size of the screen as”  Windows mode” or “Full screen mode” 
z TV Application Priority 
You may select TV program as first priori ty program of your PC. If other application 
programs are used when playi ng TV, they will take CPU resource and slow down 
the player.  

Recording setup 
 
You may create/modify/delete schedule recording here
 15 

4.4 Right Click Menu 
Right click your mouse over the DIGITALTV interface to open a pop up menu: 
Play: Play video 
Pause: Pause the video you are currently watching 
Stop: Stop the video you are currently watching 
Record: Record the video program you are currently watching
Rewind: Rewind when you are watching recorded video 
Fast Forward: Fast forward when you are watching recorded 
video 
Time Shifting: Start or pause the “Time Shifting” function 
Channel Up: Change to previous channel 
Channel Down:...

 17
4.5 Keyboard Shortcuts 
 
Function  Keyboard Shortcut  
Play  Enter  
Stop  End  
Pause  Space bar 
Full Screen   Z   
Properties windows O 
Record  Home  
Stop Record  End  
Program list L 
Time Shifting  T  
Channel up   Page up   
Channel down   Page down   
Volume up   Shift + Arrow up   
Volume down   Shift + Arrow down   
Help  F1  
Key cancel   Esc   
Key enter  Enter  
DIGITAL TV Exit  X  
Mute  M 
Right Speaker   Ctrl + R   
Left Speaker   Ctrl + L 
Favorites List  V  
EPG  E  
Preview  K...

Appendix 1  Trouble Shooting 
 
General 
1. Windows cannot recognize Digital TV USB correctly  
You may switch to a different USB slot and try again.  Please make sure that your 
USB plug and USB port is clean 
 
2. Error message shows up Setting error! Fail to play the program! or Fail 
to play your program: 
 Please check the driver of VGA card and sound card 
 Please make sure the hardware and software settings are correct, and try TV 
channel scanning again  
 Please install Microsoft DirectX9.0C...

 19
 
8. Cannot find driver for R/C receiver. 
Please re-plug the receiver or change different USB port.    You do not need to 
install additional drivers because it will install the built-in HID driver in your OS. 
 
9. Remote control does not work 
Check remote control batteries.    Check remote receiver: the red light on receiver 
will remain ON as it is getting signal from the remote control.    Also, point your 
remote control to the receiver when in use.         
 
 
AT S C  
1.    Why cannot I...

 
 
Power 
Channel UP/DOWN
Volume UP/DOWN 
FAVORITE 
Mute 
Full Screen 
Stop 
Record 
ATSC/Analog Switch 
Time Shifting 
Play Back 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 20