GAI-Tronics ICP9000 Navigator Series Console Installation and Service Manual - Manual (Page 50)

Console Diagnostics ICP9000 Navigator Installation and Service Manual
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Internal Diagnostics
Internal diagnostics are used to ensure the proper function of certain aspects of the MCU. Certain internal
tests may be performed to test the operation of a console feature or to troubleshoot a problem. For certain
tests it is advised to disconnect the MCU from any landlines or other devices before performing the test.
1 - Supervisory
This test allows the optional supervisory board to be tested. The Supervisory test exercises supervisory
control on each channel.
2 - Phone
This test of the optional phone-patch board allows audio to be routed to and from the phone patch board
and to verify the I/O port of the external phone interface.
3 - DC
This test allows the optional dc boards and channels to be tested. The channel positions for dc boards and
the current output on each board can be tested.
CAUTION
The MCU can generate in excess of 160 V dc at 15 mA on the line outputs
during this test and maintains this voltage after the test during a no-load situation. Care should be
taken to ensure that contact is not made with the line out connections of the MCU during or several
minutes after executing this test.
4 - RS-232
This test allows the RS-232 printer/programming port to be tested. The transmit and receive paths of the
RS-232 are checked as well as the transmit and data paths of the RS-232 cable. This is done by shorting
transmit and data at pins 10 and 11. For this test, the TX and RX pins of the RS-232 port must be
connected.
N
OTE : This diagnostic does not test the communications between the MCU and the PC. The
communications between the MCU and the PC are tested automatically during operation. A failure in the
communications between the MCU and the PC is automatically detected and reported to the console
operator via the PC monitor.
5 - I/O Pins
This test allows the general purpose and encode in/out pins of the RS-232 port to be tested.
6 - E&M
This test allows the optional E&M board to be tested. The E&M board exercises the M lead outputs and
reads the E lead inputs for each channel present.
7 - Memory
This test allows CARD Suite parameters in hexadecimal form to be examined in the information window.
N OTE : If any values in this window are modified, they are immediately saved and could affect the proper
operation of this unit.