PESA RCP-48X, Руководство пользователя

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MAINTENANCE
5
Section 5
page 5.3
Maintenance
RCP–48X
If a source input fails to function it may be a
blocked input. Check the system configuration at
the controller.
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Troubleshooting Continued:
If the Panel is nonresponsive, there may be a power problem or the
CPU is not operating.
1. Refer to the POWER DISTRIBUTION discussion in Section 4. Refer to
the remote CPU schematic in Section 6 if it is necessary to make
voltage checks at the chip or component level.
2. If power is functioning properly, the CPU is not operating. The CPU
requires a clock, a power-up reset, communications from the
Controller. Refer to the CPU Board functional description in Section 4.
For partial failures:
1. Pushbutton switches fail to initiate desired operation. Refer to the CPU
Board functional description in Section 4.
2. Control indicators fail to light. Refer to the LED Driver discussion in the
functional description section.
3. Almost any type of functional failure can be caused by a memory
failure. This type of failure can easily be checked if a substitute chip is
available.