Operating instructions

6-26
TECHNICAL DATA ORBAN MODEL 9400
Schematics and Parts Locator Drawings
These drawings reflect the actual construction of your unit as accurately as possible.
Any differences between the drawings and your unit are probably due to product
improvements or production changes since the publication of this manual.
If you intend to replace parts, please read page 6-13. Please note that because sur-
face-mount parts are used extensively in the 8382, few parts
are field-replaceable.
Servicing ordinarily occurs by swapping circuit board assemblies. However, many
vulnerable parts connected to the outside world are socketed and can be readily re-
placed in the field.
Function Description Drawing Page
Chassis
Circuit Board Locator and Basic In-
terconnections
Top view
(not to scale)
6-29
Base Board
Glue logic; supports CPU module
and RS-232 daughterboard.
Contains:
Parts Locator
Drawing
6-30
System Connections Schematic 1 of 4
6-31
CPU module interface Schematic 2 of 4
6-32
Power Supply Monitor Schematic 3 of 4
6-33
CPLD, General Purpose Interface,
and Remotes
Schematic 4 of 4
6-34
CPU Module
Control microprocessor. Services
front panel, serial port, Ethernet,
DSP board, and control board. Re-
sides on base board.
Contains:
Parts Locator
Drawing
6-35
Ethernet Schematic 1 of 5
6-36
General Purpose Bus Schematic 2 of 5
6-37
Memory Schematic 3 of 5
6-38
Miscellaneous Functions Schematic 4 of 5
6-39
Power and Ground Distribution Schematic 5 of 5
6-40
RS-232 Board
Supports Serial Port Parts Locator
Drawing
6-41
Schematic 1 of 1
6-42
Power Supply
±15V analog supply; ±5V analog
supply; +5V digital supply
Parts Locator
Drawing
6-43
Schematic 1 of 1
6-44
I/O Board
Analog Input/Output
AES3 Input/Output
Composite Output
SCA Input.
Contains:
Parts Locator
Drawing
6-45
L and R Analog Inputs Schematic 1 of 5 6-46
L and R Analog Outputs Schematic 2 of 5 6-47