User manual SIMA SVS-4

[. . . ] 4 Input A/V Switcher with Automatic Input Mode and Volume Stabilizer Model SVS-4 User Manual Table of Contents WHAT'S INCLUDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 IMPORTANT SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 IR REMOTE CONTROL, SRC-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 TYPICAL HOOK UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 AUTO INPUT MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 VOLUME STABILIZER ACTIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 VOLUME STABILIZATION ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 HOW IT WORKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 SIMPLIFIED BLOCK DIAGRAM OF THE SVS-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 AUTOMATIC INPUT SENSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 VOLUME STABILIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 VOLUME STABILIZER INPUT / OUTPUT CURVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 COMPOSITE TO S-VIDEO CONVERSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 What's Included 1 - SVS-4 A/V switcher unit 1 - AC power adapter, 15 vdc. 1 - Triple A/V RCA cable, 1 meter long 1 - SRC-1 IR remote control, with batteries 1 - This instruction manual 1998 by Sima Products Corp. 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. Page 2 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: · Four A/V inputs to allow you to add more A/V sources such as DVD, satellite dish, VCR, games, etc. [. . . ] This lets you use just one S-Video input on your TV and all sources will automatically be displayed there. Option B: If your TV has 2 video inputs that supports both composite video and S-Video inputs, you can feed both the composite and S-Video outputs from the SVS-4 to your TV. You will have to select the correct video input on your TV, composite or S-Video. Note that this only works if the composite video and S-Video inputs are two separate inputs on your TV. Otherwise the picture may be blank, black and white or have lines and steaks. Fill in the chart below to help you organize and remember what devices are connected to the inputs and outputs. #1 #2 #3 #4 Outputs A B Remember both the A and B outputs are identical. The SVS-4 has buffers to prevent one output from loading the other output for best system performance. Note: Most systems have a VHF/UHF cable from an antenna or cable company going into the VCR and then a VHF/UHF cable between the VCR and TV. This is OK but you still must connect the A/V cables as shown in figures 5 and 6. Having both the VHF/UHF cable and the A/V cable would allow you to record a program off of the cable on your VCR (cable input) while watching a different program/movie via the SVS-4 on your TV via the A/V input. Don't forget, you must select the TV's A/V input (also call video input or line input on some TV brands) not channel 3 or 4 to view the output of the SVS-4. To (TV, Receiver, etc. ) Composite or S-Video? Page 7 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. Figure 5, Hook-up in typically system Note: Remember to always connect the outputs on your VCR/DSS/DVD/etc. Likewise, connect the outputs on the SVS-4 to the inputs on the TV/VCR/Receiver/etc. . Note: If you have one or more devices that are not stereo and have a single audio output you have two options: 1) Use just the left connector for the audio of that source; or 2) the better solution is to use a "Y" adapter (available from any electronics store) to spilt the mono signal into two signals that you feed into both the Left and Right inputs on the SVS-4. Page 8 Figure 6 below shows a system with 3 sources. It also shows using the dual outputs to allow you to record on a VCR, watch the video on the TV and listen to the sound on a surround system. [. . . ] Looking at the 1:1 line, you can see if an input signal is at the 20 dbv level (slightly soft volume wise) it will come out also at -20 dbv. If the unit is set for 10:1 compression, the same -20 input will come out at about -11 dbv as shown in the diagram below. Likewise, if the input signal goes up to 0 dbv, the output will be -9 dbv. Thus for an input change from -20 dbv to 0 dbv (a 20 db change) the output only changed 2 db (-11dbv to -9 dbv). [. . . ]