GE060538
GE6/538
GE060539 GE6/539
GE060540 GE6S/540
GE060541 GE6/541
GE060543 GE6/543
GE060544 GE6/544
Field Waveform Generator. This unit is one of four self
supported
4U
printed circuit cards in the
GE6L/535
television waveform generator. Its function is to provide
field gating waveforms to suit the four field PAL sequence
when driven from twice line rate inputs. The unit has
inputs to enable non-standard field lengths to be generated
for synchronisation purposes.
DD 1976. DDMI 1.204(76).
Line Waveform Generator. This unit is one of four self
supported
4U
printed circuit cards in the
GE6L/535.
Its
functions are to produce timings throughout the line period
when driven from a twice line source and no gate field rate
waveforms with line rate timings to provide mixed
waveforms.
DD 1976. DDMI 1.205(76).
Test Signal Waveform Generator. Generates the following
waveforms when driven by the appropriate version
of the
GE1/591.
Luminance and Chrominance
2T
Pulse and Bar;
Black Level;
5-step Staircase (all lines and CCIR variations);
Line Duration White Bar;
50Hz Square Wave;
8 Line Square Wave;
20 second Square Wave;
UK National ITS "A"
UK National ITS "B";
2T Luminance Pulse and Bar.
The following options are available when driven by a
GE1/591;
Option
1: UN23/649;
Option
2: UN23/649, UN23/650
and
FL4/577;
Option 3: UN23/649, UN23/650 and FL4/577 and UN23/65l;
Option 4: UN23/549 and UN23/561.
The following options are available when driven by a
GE1/591A:-
Option 5: UN23/652, FL4/58l and UN2l/524;
Option 6: UN23/650, FL4/577, UN23/652, UN2l/524 and
FL4/581.
Facilities provided
by the
optiona are detailed in each
sub-unit description. Power requirements +15V, -15V, +8V
all unregulated.
CH1/65D.
Parent equipment
GE4/561. DD
1979 DDMI 9.256(79)
VTR
Line
Up
Waveform Generator. Produces independently
syncs and black level with switched adjustable burst, and
sawtooth or lift waveforms with switched added subcarrier.
Replaced
GE4/532 and GE6/504.
Mains power
ed. CH1/64B.
DD 1977. DDMI 9.237(79). DDHB 9.168(81).
Sawtooth Waveform Generator. From a feed of TTL line drive
unit generates
a 0.7V
sawtooth signal. This signal is sued
as an external signal to be added to a television waveform
in
the
ITS
Generator
and
Inserter
GE4M/556.
Power
requirements +12V -12V
+5V. CH1/64A. DD 1980.
Network
Clock.
It interfaces with a micro processor bus
and produces, with appropriate software three video
waveforms corresponding to the hour, minute
and
second
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