Abekas AirCleaner, Руководство пользователя

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AirCleaner • User Guide 23
3. In This Chapter
In This Chapter
3. Maintenance
In This Chapter
The following topics are covered in this chapter:
•
Primary Circuit Boards ............................................. 23
•
Removing AirCleaner Top Cover ............................. 24
•
Power Supply Replacement ..................................... 25
•
Inspection .................................................................. 26
•
Power Up / Power Down AirCleaner........................ 26
•
Performing a Factory Reset ..................................... 26
•
Updating Software & Firmware................................ 27
Primary Circuit Boards
The interior of AirCleaner is rather simple, consisting of just two circuit boards: the
System Board (Abekas part number 9400-0972-00), which handles the AES digital
audio I/O and voltage regulation; and the Sequoia Graphics Board (Abekas part
number 9400-0956-03) which handles digital video I/O, reference and memory for
AirCleaner. These boards interconnect with a custom multi-pin ribbon connector.
Every input and output (for audio and video) is equipped with a hardware relay that
will route the input source directly to the output in the event of a complete power
supply failure. There is also a front panel button on the AirCleaner chassis (labeled
BYPASS) for manual operation of this relay. Refer to
Chapter 4 - Operations
for more
information.
The Sequoia board also has the system Field-Programmable Gate Array (FPGA) and
the SO/DIMM memory that’s used for the delay circuitry. This memory determines
the amount of delay in the system. There are 2 types of Sequoia boards:
•
AirCleaner Model 1 Features 12 seconds of HD delay and 60 seconds of
SD delay (Abekas part number 9900-0310-00).
•
AirCleaner Model 2 Features 6 seconds of HD delay and 30 seconds of SD
delay (Abekas part number 9900-0311-00).