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Fig. 3-5: CARD # 2: POWER- UP JUMPER
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Fig. 3-4: CARD 117: OUTPUT FORMAT JUMPERS
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JUMPER
JUMPER
5)
Loudness
Controller:
Card # 2 ( the
Loudness
Controller)
may
be
strapped
to
power- up either ON or OFF. As shipped, it powers- up ON. Move the jumper on
Card # 2 according to Fig. 3-5 below as necessary.
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DO
AT
JUMPER
The
Loudness
Controller
has
been
designed
to
be
fed
either
preemphasized
audio ( from Cards # 8 and 119) or non-preemphasized audio ( from Cards # 3 and
#4).
When the Loudness Controller card is located in the main chassis ( rather
than the Accessory Chassis), it is supplied preemphasized audio from Cards # 8
and # 9.
It
is
shipped
strapped
for
this
condition.
When
it
is
moved
to
an
Accessory
Chassis,
it
must
be
restrapped
according
to
Fig.
3-6 below.
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Fig. 3-6: CARD # 2: DEEMPHASIS JUMPER
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CARP 311
FROM CARO % I'
U.IPUT JUMPER
6)
Other
Jumpers:
OPTIMOD-TV
shares
circuit
cards
with
a number
of
other
Orban products. Jumpers on Cards # 6, 8, and 9 must be correctly strapped to
configure
these
cards
as
OPTIMOD-TV
cards.
Appendix
H summarizes
the
normal
positions
of
these
jumpers
as
used
in
OPTIMOD-TV,
and
should
be
consulted if the jumpers are accidentally moved.
Reassembly: When
the physical examination,
line voltage
adjustment, and
optional
initialization procedures are completed, replace the subpanel. The subpanel, besides
carrying knob identification and calibrations and holding the cards
in
place,
also
provides RF shielding for the cards. So, all four DZUS fasteners should be engaged
by turning 1/4- turn clockwise.
3 - 4
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