Re: Amiga 1084 monitor

[ab616@chebucto.ns.ca (Tony Cianfaglione)]

Vincent Quinn (gospodin@indigo.ie) wrote:
> First its switches and inputs: looking at the rear and working from left
> to right, there are:
> (1) a pushbutton switch marked CVBS/LCA - what does this do?

   Commodore 64's use a luminance and chroma separation for a brighter
picture and this is what LCA stands for: luminance/chroma/audio.  CVBS is
the composite video system used by the 8 bit II's.  The switch activates
one or the other.

> (2) three RCA inputs, in a triangle: the top one is coloured red and
> marked C (for composite???);the left is yellow and marked CVBS/L; the
> right is white and marked A Audio (that's self-explanatory?)

   Three inputs for the three cables coming from a Commodore 64 or an
Amiga with separate leads (old style).  Plug your IIc into the yellow
input.  The red input is for the 64 chroma signal.

> (3) an eight-pin DIN input, marked TTL RGB

   TTL is digital RGB used by the IIc running a 9 pin Video 7 adapter
(available from Alltech Electronics - www.allelec.com).  Commodore 128's
use this input as well and the cable works perfectly with the above IIc
and Video 7 setup.  There are 15 pin Video 7 adapters as well).

> (4) there is a blanked-off DIN position (nothing on the board behind it
> either); the case is marked linRGB

   On my 1084, this houses a 6 pin analog din receptacle that you would
use for the Amiga or GS.

> (5) a standard 20-pin-and-shield SCART socket

   This is provided in place of your missing analog receptacle.

> (6) finally, a pushbutton switch marked VCR.

   This allows you to run a VCR through the RGB inputs utilizing better
circuitry which filters out interference.

> On the front next to the adjustment knobs is a further pushbutton switch
> for selecting between CVBS and RGB.

   Allows selection of RGB and composite inputs from the front of the
monitor.  The 1084 is identical in design to the Magnovox 40/80.

Tony

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