A/V multiplexor - Design Question
A/V multiplexor - Design Question
(OP)
Maybe something like this already exists, but I am trying to help my grandfather out in hooking up his brand new DVD player and the VCR to the TV at the same time. The inputs in the backs of the devices don't allow for it.
And I realize that we might be able to just return the player, but I thought this might be fun to build.
So my idea is to build a really simple multiplexor (not digital, just using a switch) to switch between the 3 connection VCR A/V, and the 3 connection DVD A/V signal that goes to the back of the TV. I just want a toggle switch or something that allows for my grandfather to walk over to the TV area and flick a switch if he wants to switch from DVD to VCR input to TV.
However, are there devices that allow you to control 3 switches with one mechanical motion?
And I realize that we might be able to just return the player, but I thought this might be fun to build.
So my idea is to build a really simple multiplexor (not digital, just using a switch) to switch between the 3 connection VCR A/V, and the 3 connection DVD A/V signal that goes to the back of the TV. I just want a toggle switch or something that allows for my grandfather to walk over to the TV area and flick a switch if he wants to switch from DVD to VCR input to TV.
However, are there devices that allow you to control 3 switches with one mechanical motion?





RE: A/V multiplexor - Design Question
RE: A/V multiplexor - Design Question
You can usuall daisy chain such devices by connecting the DVD player to one of the inputs for the VCR and the VCR to the TV.
TTFN
RE: A/V multiplexor - Design Question
I guess that the instructions manuals are quite useful - if you understand what they say. And if you do not use your engineering knowledge.
Gunnar Englund
www.gke.org
RE: A/V multiplexor - Design Question
htt
RE: A/V multiplexor - Design Question
Jim Goebel,
Electrical Engineer
Mid-West Forensics, Inc.
RE: A/V multiplexor - Design Question
Some people might assume that the VCR's A/V circuits are bypassed in certain modes - they typically are not.
This Macrovision issue wouldn't show up just examining the DVD player's menu screens. You need to play a Macrovision protected (sic) DVD and see if the picture appears distorted.
The A/V switches are typically better value at Game Stores (places that sell PlayStations and similar gear). A very nice four input A/V switch might be US$12 or so. YMMV.