Troubleshooting - Optimus STAV-3790 Owner's Manual

31-3046.fm Page 38 Monday, January 29, 2001 12:43 PM

Troubleshooting

If the receiver is not working as it should, the following suggestions might help. If you follow the suggestions in this chart and the
receiver still does not work properly, contact your local RadioShack store for assistance.
Problem
Power does not turn on.
The receiver does not respond
to button presses.
No sound.
No picture when you select a
video source.
High noise level.
Automatic tuning does not stop
when searching for stations.
Cannot make copies of video
tapes.
Remote control does not work.
Remote does not control cas-
sette deck or CD player.
38
Cause
Power cord is disconnected.
Protection circuit is activated.
Static discharge has affected the re-
ceiver.
Incorrect connections.
The mute function is activated.
The volume is turned down.
Speaker wires are disconnected.
Speakers are turned off.
TAPE 2 function is engaged.
The selected video source is not set
correctly.
Incorrect connections.
Station not correctly tuned.
Antenna not connected.
FM antenna still coiled or is not
pointing in the correct direction.
AM loop antenna not pointing in the
correct direction.
Noise is coming from another electri-
cal appliance.
Stations are too weak.
Tapes are protected by a copy pro-
tection method.
Video connections are incorrect.
Remote is set to other device.
Batteries are weak.
Cassette deck or CD player is not
compatible.
Control cable is not plugged in.
Audio cables are not plugged in.
Suggestion
Plug in the power cord.
Unplug the power cord, then plug it in again.
Unplug the power cord, then plug it in again. (If
static electricity is a problem, use the remote control
as much as possible.)
Check and correct the connections.
Press .
MUTING
Turn up the volume.
Connect the speaker wires.
Press so SP A appears on the display.
SPEAKER
Disconnect the headphones if connected.
Press so TAPE 2 clears from the display.
TAPE 2
Correct the problem with the selected video source.
Check and correct the connections.
Adjust tuning.
Connect the antenna.
Stretch both ends of the antenna taut and reposition
the antenna.
Adjust the AM loop antenna.
Try using an AC line noise filter to reduce the noise.
Use a better antenna.
You cannot make a good copy.
Check and correct the connections.
Press the button for the device to
CONTROL MODE
control.
Replace the batteries.
The feature only works with Optimus Professional
Series components.
Properly connect the control cable.
Properly connect the audio cables.