UN230668 UN23/668
UN230669 UN23/669
UN23/669A
UN230670 UN23/670
UN230671 UN23/671
UN230672 UN23/672
UN230673 UN23/673
UN230674 UN23/674
UN230675 UN23/675
UN230676 UN23S/676
requirements :!:5V. 4U unsupported card. Parent equipment
C06/510. DD 1979.
Data Control Card. The unit processes data in the C06/510
(standards converter) field store. Power requirements :!:5V.
4U unsupported card. Parent equipment C06/510. DD 1979.
S.I.S. System Logic Unit. This unit accepts alarm signals
from two Sound-in-Syncs decoders and uses them to
auto-select video and audio outputs. Manual override
facilities are included and the unit provides a remote
indication for an automatic fault reporter. Power
requiremetns +24V 200mA, +5V 100mA. CH1/64A. TCPD 1979.
S.I.S.
System Logic Unit.
Electrically identical
to
UN23/669 but mounted in a modified CH1/12A chassis. Power
requirements +24V 200mA, +5V 100mA. TCPD 1979.
Display Control Logic 1. Part of Ceefax Subtitle Display
Decoder CD3L/539. 4U unsupported card with 57 way edge
connector. DD 1980. DDMI7.484(81).
Display Control Logic 2. Part of Ceefax Subtitle Display
Decoder CD3L/539. 4U unsupported card with 57 way edge
connector. DD 1980. DDMI7.485(81).
Dsip1ay Control Logic 3. Part of Ceefax Subtitle Display
Decoder CD3L/539. 4U unsupported card with 57 way edge
connector. DD 1980. DDMI 7.486(81).
Display Control Logic 4. Part of Ceefax Subtitle Display
Decoder CD3L/539.
4U unsupportd card with 57 way edge
connector. DD 1980. DDMI 7.483(81).
Clock Control Unit. This unit forms part of the Electronic
Network Clock. It produces vertical and horizontal
addresses synchronised with the mixed syncs and mixed
blanking
inputs.
Gating
signals
and
"numeria1s"
are
generated which, along with the clock hand signals from the
GE6/544, are combined to produce the full clock face
display. Power requirements +5V at 3A maximum. 4U BMM
unsupported card with 57-way double-sided edge connector
and PN1/29J panel. DD 1980.
Disk Store Interface Unit. Interface unit between Floppy
Disk Field Store, RD4M/508 and a suitable field store. It
contains 1 line of video data storage for 8MHz sampling
(512 bytes), which can be read or written into at video
speeds, and under CPU control through a suitable
Input/Output
module
(e.g.
UN23/130).
The memory
addressing counters and control are also on-card. Power
requirements 5V d.c. DD 1980.
AGC Control Unit. This unit forms part of the ME3M/502
Television Waveform Analyser. It works in conjunction with
the AM18/527 AGC amplifier, and provides control signals to
enable the AGC to work on either the peak white or the sync
amplitude of the signal. Power requirements +5V, -5V. 4U
unsupported card with 57-way edge connector. DD 1980.
DDMI 9.305(83).
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