Model VHD-2
13
Troubleshooting
Symptom Possible
Cause(s)
No picture on TV
Monitor
1. VHD-2 is not ON; Ensure that the adapter is plugged into a
working wall outlet and its DC connector is plugged into the
VHD-2.
2. TV monitor is not ON.
3. The PC is not ON.
4. TV monitor not set to “video input” mode
5. No connection between VHD-2 and the TV. Ensure that either
the composite video output (S-Video) or Y Pb Pr output is
connected to the TV’s video or Y Pb Pr input.
6. No connection between VHD-2 and PC video card. . Ensure
VGA IN
is connected to the PC video card and the local PC
monitor to
VGA OUT
connector. Turn the screws
simultaneously.
7. VGA cables are reversed while no PC monitor used. Ensure
VGA IN
is connected to the PC video card and the local PC
monitor to
VGA OUT
connector.
8. Bad cables. Try other cables.
Poor Picture Quality
1. VGA cables are reversed while a local PC monitor being used.
. Ensure
VGA IN
is connected to the PC video card and the
local PC monitor to
VGA OUT
connector.
2. Low Sharpness mode used. Press the Sharpness button on
the remote control to select high sharpness mode.
3. Change the screen resolution on the PC.
Flickering Picture
1. The PC screen resolution too high. VHD-2 can handle
resolutions up to 1600X1200 at 60Hz vertical frequency.
2. The PC vertical frequency (scan rate) is too low or too high for
the selected resolution. This frequency can be set to 50-
120Hz.
Picture Frozen on the
TV Monitor
Press the Freeze button on the remote control.
Remote Control Not
Responding
1. Remote control unit has no battery. Insert a new button style
battery in the remote control unit.
2. The IR sensor on the remote is not facing the remote control
unit while commands are being sent. Make sure the IR sensor
on the VHD-2 is facing the remote control unit.
