Sima SVS-4 User Manual

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

..............................................................................................10

OWER

P I A V V

HOW IT WORKS ..............................................................................12

..............................................................................................10

NPUTS

UTO INPUT MODE

OLUME STABILIZER ACTIVE

OLUME STABILIZATION ADJUSTMENT

...........................................................................10

............................................................11

.............................................11

IMPLIFIED BLOCK DIAGRAM OF THE

UTOMATIC INPUT SENSING

OLUME STABILIZATION

OLUME STABILIZER INPUT

OMPOSITE TO

S-V

IDEO CONVERSION

.............................................................12

...................................................................12

/ O

SVS-4.....................................12

UTPUT CURVES

................................13

..............................................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

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. to your TV and home theater system. The unit supports stereo audio as well as both composite and S-Video.

• Dual A/V outputs to connect to your TV, your surround sound receiver and/or a recording VCR.

• Composite video to S-Video conversion to simplify hook-up in systems using both composite and S-Video.

• Automatic Input Mode (AIM) provides automatic switching to active input without you having to push any buttons. Simply turn on your VCR and the SVS-4 connects it automatically to the TV.

• Volume Stabilization circuitry to maintain constant audio volume levels for late night viewing or when channel surfing. It can also be adjusted to add impact to old movies by increasing the dynamic range.

• IR remote control when you want to select a different input or mode without getting up from your chair.

• Front panel display brightness control allows you to dim the lights for nighttime use (via the remote only).

Warnings

Important Safety Precautions

When using this product, basic safety precautions should always be followed to reduce the risk of fire and electric shock, including the following:

Read and understand all instructions. Follow all warnings and instructions marked on this product. Unplug this product from wall outlets before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth for

cleaning.

To prevent fire or shock hazard, do not expose this product to rain or moisture. Do not use near a bath tub, wash

bowl, sink, or laundry tub; do not use in a wet basement or in a swimming pool. To avoid electrical shock, do not open the case of this product. Operate this product using only the power supply included with it or provided as an accessory. If you are not sure of

the type of power supplied to your home, consult your dealer or local power company. Do not overload electrical outlets or extension cords as this can result in fire or electric shock. The unit should be situated away from heat sources such as radiators, stoves, etc. The unit should be situated so that

its location or position does not interfere with its proper ventilation.

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Front Panel

Figure 1, SVS-4 front panel

Controls

1 - Power / Stand-by - Press to turn unit on or

off. The Power/Stand by light will be on when the unit is operational and dim when it is in the standby mode.

2 - Inputs 1 through 4 - Press to select desired

input. The light above the switch will light to indicate the current active input.

3 - Auto Input Mode - Press to turn AIM on or

off. If on, the unit will scan the video inputs and automatically turn on and select the input to the device you turned on.

4 - Volume Stabilization Adjustment - This

controls the amount of dynamic range you want. In the middle, at the 1:1 setting, the input is equal to the output, so there is no affect on the audio signal. If the knob is rotated counter-clockwise towards the 10:1 setting, the audio will remain more constant.

This will bring up soft dialogue and reduce loud sounds. If the knob is rotated clockwise towards the 1:2 setting, the unit will increase the dynamic range and make loud sounds louder and soft sounds quieter to add impact to music or movies.

5 - Volume Stabilizer Active - Press to turn

Volume Stabilization on or off. If active, the light will be on and the audio will go though the Volume Stabilization circuitry to either increase or decrease (depending on the setting of the Volume Stabilization adjustment) the dynamic range of the audio. The light will be off when the Volume Stabilization is bypassed.

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Rear Panel

Figure 2, SVS-4 rear panel

6 - S-Video inputs, 1 through 4 from the S-

Video output of your VCR, DSS or DVD devices.

7 - Composite Video inputs, 1 through 4 from

the composite video output of your VCR, DSS or DVD devices.

8 - Left and Right audio inputs, 1 through 4

from the audio output of your VCR, DSS or DVD devices.

9 - S-Video outputs, A and B that connects to

the input on your TV or VCR

10 - Composite Video outputs, A and B that

connects to the input on your TV or VCR

11 - Left and Right audio outputs, A and B

that connects to the audio inputs on your TV, VCR or surround sound receiver

12 - 15 vdc input from the AC wall power

supply

IR Remote Control, SRC-1

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. DISPLAY - Pressing this button cycles through three levels of

brightness on the front panel lights - bright, dim or off. When the Display is set in the “off” mode, the lights will light for a few seconds when any button is pressed.

VS ACTIVE - Toggles between the Volume Stabilizer being active or

in the bypass mode.

AUTO INPUT - Toggles between the Automatic Input Selection

mode being on or off.

INPUT 1 through 4 - Selects desired input.

Be sure to install the two AAA batteries in the SRC-1 remote before using. Slide the cover open on the SRC-1 remote in the direction of the arrow and install the batteries as shown inside the unit.

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