| I have the feeling that the original question was misunderstood.
As I understand, the base noter wants to record ST generated images
on his VCR. You don't need a GENLOCK for this purpose. The GENLOCK
is necessary if you want to mix ATARI and TV images because then
you to synchronize the two sources first.
re. 0
If you have a 520STE (no M), I suppose then that your 520 has no
TV modulator. Strange, I though that STE were always fitted with
an RF modulator.
If you had a modulator you could either use the RF signal to the
VCR aerial input, or build a cable to connect the video composite
signal directly to the VCR video input. (on monitor socket pin 2,
if I remember correctly). When an ST has no modulator the video
composite TV signal doesn't exist. It is usually replaced by a synchro
composite signal.
If you don't have an RF modualator you can certainly buy one from
an ATARI shop. There are plenty of those (third party, but made for
the ST on the market and they used to cost around 100$ in my country
(Belgium).
For my part, I have modified my 1040 STF into a STFM, by adding a
genuine atari RF modulator, *BUT* if you do this, you also have to add
the components for two or three circuits on the ST board.
Specifically, the ATARI modulator contains the RF modulator and the
color coder (PAL, SECAM, NTSC) wich is indeed a CI TDA... something.
However some parts are missing. For instance the color subcarrier
oscillator and some synchro circuits have to be rebuild on the board.
this oscillator frequency is dependent on the color system. For PAL
it is 4.43 MHz.
Some components must also be removed. On most of ST without modulator,
the Monitor socket pin 2 issues a synchro composite signal. After the
modification it should issue the video composite signal. So the
original synchro mixer must be removed (Just some diodes and
transistor).
Modifying the ST is not easy, you need electronics skills and the
schematics. I'm not sure if this is possible on the STE, but I guess
so. It ends up costing more than buying a separate RF modulator.
Hope this help.
Ray.
|
| >> <<< Note 1170.3 by BRSTR1::PIGEON "VAX Vobiscum..." >>>
>> If you have a 520STE (no M), I suppose then that your 520 has no
>> TV modulator. Strange, I though that STE were always fitted with
>> an RF modulator.
They are. Read the 'e' as everything...
modulator,
1Mb disk
blitter
extra joystick ports
stereo sound
.
.
I HAVE successfully recorded the activities on-screen onto a video tape
by tuning into the modulator.
Richard
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