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Summary of Contents for Sima SVS-4
- Page 1 4 Input A/V Switcher with Automatic Input Mode and Volume Stabilizer Model SVS-4 User Manual...
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Page 2: Table Of Contents
1 - This instruction manual 1998 by Sima Products Corp. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without prior written permission from Sima Products Corp..11 SVS-4...12 ...13... -
Page 3: Introduction
Introduction The Sima model SVS-4, 4 Input Audio / Video Switcher with Automatic Input Mode (AIM) and Volume Stabilization has been designed for the home theater, DSS satellite, DVD, audio recording as well as for background music applications. The SVS-4 has the following features: •... -
Page 4: Front Panel
If the knob is rotated counter-clockwise towards the 10:1 setting, the audio will remain more constant. Figure 1, SVS-4 front panel This will bring up soft dialogue and reduce loud sounds. If the knob is rotated clockwise... -
Page 5: Rear Panel
Fig. 3, SRC-1 All the buttons on the SRC-1 IR remote control work just like the buttons on the front of the SVS-4, with the exception of the DISPLAY button. See descriptions above (under the heading “Front Panel”) for more information POWER - Turns SVS-4 on or off. -
Page 6: Typical Hook Up
This shows a overview of a typical system with the SVS-4 using 4 A/V sources, a TV and Surround system. The outputs of up to 4 devices can feed into the inputs on the SVS-4. It can then select one of the devices to watch on your TV and/or listen on your receiver. - Page 7 In this case you have several options. Option A: For ease of use, the SVS-4 has a composite to S-Video converter . You can feed a combination of composite and S-Video to the SVS-4 and feed only a S-Video signal to your TV.
- Page 8 Figure 5 below shows a hook up showing only two input sources. Be sure you use either S-Video or composite video inputs, but not both on the same input. The one SVS-4 output goes to the TV so you can watch and listen on your TV. The second output (audio only) goes to the stereo receiver so you can listen to music or surround sound audio using your stereo receiver.
- Page 9 1, 2 or 3 (not 4 as you would be trying to record to itself) and record on the Recording VCR the video and audio from the selected source. Figure 6, SVS-4 with recording VCR Note: Remember to select the A/V or AUX input on the recording VCR to record the output of the SVS-4.
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Page 10: Operation
If the Auto Input Mode (AIM) is active, the unit will look for a video signal on the video inputs to select an input. If a second input becomes active, the SVS-4 will automatically change to the new input. If you want to go to another A/V source, simply select the input using the front panel button or the remote. -
Page 11: Volume Stabilizer Active
Volume Stabilization knob is set to the 10:1 position and the VS ACTIVE light is on. Note: It is normal to notice volume variations even with the SVS-4 set to the 10:1 setting. This is due to the fact the human ear is more sensitive to certain frequencies and these will tend to sound louder. -
Page 12: How It Works
SVS-4 reduces the volume by 9 db so the output only changes by about 1 db. Likewise, if the audio signal gets softer by 10 db, the SVS-4 adds gain to the signal so it is only reduced by about 1 db. -
Page 13: Volume Stabilizer Input / Output Curves
With the SVS-4 set to 1:2 expansion, if the input makes the same -20 dbv to 0 dbv change as above, the output now goes from -30dbv to +10 dbv. This is a 40 db output change for a 20 db input change. This results in soft sounds, including tape hiss and soft conversations, becoming even softer and loud special effects becoming even louder. -
Page 14: Trouble Shooting
Push STANDBY button so unit is in the ON mode. Your TV is using both composite and S-Video inputs. Use only one or the other to feed into the SVS-4 or into your Is the video cable connected from the device to the SVS-4? Is the device producing a video picture. -
Page 15: Technical Specifications
Technical Specifications Audio Inputs, (4 stereo) Input impedance, 47 Kohms Typical input level, 300 mv Frequency response 20 to 20KHz, +/- 3db (bypass mode) Signal to Noise ratio, greater than 70 db THD less than 0.1% (bypass mode) Left to right separation, greater than 60 db Channel to channel separation, greater than 60 db Outputs, (2) Output Impedance, less than 150 ohms... -
Page 16: Limited Warranty
Limitation of Liability and Remedies Sima shall have no liability for any damages due to lost profits, loss of use or anticipated benefits, or other incidental, consequential, special or punitive damages arising from the use of, or the inability to use, this product, whether arising out of contract, negligence, tort or under any warranty, even if Sima has been advised of the possibility of such damages.
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