OPTIMOD-AM DIGITAL
TECHNICAL DATA
6-13
RMS root-mean-square
ROM read-only
memory
SC subcarrier
SCA
subsidiary communications authorization
a non program-related subcarrier in the AM
baseband above 23 kHz (monophonic) or 57 kHz (stereophonic)
S / PDIF
Sony / Philips digital interface
TRS
tip-ring-sleeve (2-circuit phone jack)
THD
total harmonic distortion
TX transmitter
s
Microseconds. For AM pre-emphasis, the +3 dB frequency is 1 / (2
), where
is the pre-
emphasis time constant, measured in seconds.
VCA voltage-controlled
amplifier
VU
volume unit (meter)
XLR
a common style of 3-conductor audio connector
XTAL crystal
Parts List
Many parts used in the 9400 are surface-mount devices (“SMT”) and are not in-
tended for field replacement because specialized equipment and skills are necessary
to remove and replace them. The list below includes substantially all of the parts
used in the 9400 (including surface-mount devices), and inclusion of a part in this list
does not imply that the part is field-replaceable.
See the following assembly drawings for locations of components.
Obtaining Spare Parts
Special or subtle characteristics of certain components are exploited to produce an
elegant design at a reasonable cost. It is therefore unwise to make substitutions for
listed parts. Consult the factory if the listing of a part includes the note “selected” or
“realignment required.”
Orban normally maintains an inventory of tested, exact replacement parts that can
be supplied quickly at nominal cost. Standardized spare parts kits are also available.
When ordering parts from the factory, please have available the following informa-
tion about the parts you want:
Orban part number
Reference designator (e.g., C3, R78, IC14)
Brief description of part
Model, serial, and “M” (if any) number of unit
see rear-panel label
To facilitate future maintenance, parts for this unit have been chosen from the cata-
logs of well-known manufacturers whenever possible. Most of these manufacturers
have extensive worldwide distribution and may be contacted through their web
sites.
Summary of Contents for Optimod-AM 9400
Page 1: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 7: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
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Page 261: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29...
Page 267: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 35 CPU Module...
Page 273: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 41 RS232 BOARD PARTS LOCATOR...
Page 275: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 43 8300 POWER SUPPLY PARTS LOCATOR...
Page 284: ...6 52 TECHNICAL DATA ORBAN MODEL 9400 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 292: ...6 60 TECHNICAL DATA ORBAN MODEL 9400 DISPLAY BOARD PARTS LOCATOR...
Page 293: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...