Sima VS-712 EX, User Manual

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Trouble Shooting
Problem Solution
Power/Stand-by light does not
come on Make sure power adapter is plugged into a working outlet.
Stand-by light is dim (normal in stand-by mode)
No video output Is standby light off?
Is input light lit?
Make sure correct input is selected.
Make sure inputs and outputs are not reversed.
No audio output Is standby light off?
Is input light lit?
Make sure correct input is selected.
Make sure inputs and outputs are not reversed.
No input is selected Push STANDBY button so unit is in the ON mode.
Picture is black and white Your TV is using both composite and S-Video inputs. Use
only one or the other to feed into the VS-712EX or into your
TV.
AUTO SELECT does not
detect device when turned on Is the video cable connected from the device to the VS-
712EX?
Is the device producing a video picture. Some products do
not generate a video signal (just a blue screen) unless the
tape/DVD/etc. is actually playing.
Is AUTO SELECT turned on?
Unit goes to standby after 5
seconds Normal if there are no video inputs.
Either turn video input on or turn AUTO SELECT off.
Volume seems to vary too
much between sources Make sure Volume Stabilization is active.
Set Volume Stabilization to the 10:1 setting.
No front panel buttons work Verify power supplied is plugged into a working outlet
Check that rear DIP switch is set for Front Panel Active
IR remote does not work Replace batteries in remote.
Check that rear DIP switch is set for IR Active
A record channel can not be
selected (LED blinks) Check that rear DIP switch is set for Record Loop Protection
Terms
Term Definition
Component Video High quality video using 3 cables (Y, Pb, Pr) used with DVDs,
DTV and HDTV
Composite Video Standard video signal using RCA style jacks
Compression Reduce the dynamic range of an audio signal by decreasing loud
signals and increasing soft signals.
Db Short for decibels - Measure of relative sound levels . The
smaller change a human ear can hear is about 1 db.
Dbv Measure of absolute voltages. 0 dBV is equal to .775 v rms.
Most consumer equipment operates at about -10 dBV.
Expansion Increase the dynamic range of an audio signal by increasing loud
signals and decreasing soft signals
S-Video Video signal that separates the color signal from the brightness
signal and uses mini DIN connectors.