Maintenance
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SHEET A-2
SYMPTOM(S)
PROBABLE CAUSE(S)
CORRECTIVE ACTION
• SYNC LED flashing
• Case of the slave
IDR IDO 3G: loss of the clocks
(HTX or HSX or 6.4 MHz) of
the master IDR IDO 3G.
• The slave IDR IDO 3G falls back on its
internal clocks.
• If the master IDR IDO 3G"s SYNC LED is
lit permanently, change the
synchronisation board (see Sheet E-3) of
the master IDR IDO 3G.
• If the master IDR IDO 3G's SYNC LED is
off, check the internal cables.
• If the master IDR IDO 3G's SYNC LED
flashes:
- power up/down the IDR IDO 3G using
the primary converter's "I/O" switch
(Plate 6.IV, item 2 or 9) (wait until the
power supply stops before putting the
switch back to "I") on both IDR IDO 3Gs
one after the other with at least 2
seconds' interval.
- check the internal cables.
• If the fault persists, contact the
manufacturer's customer support service.
3G PA-TRX module LED:
• “DEF” associated with
the TRX, red (lit or
flashing)
• Hardware alarm or non
start-up of the module or
specific module state. The
"DEF LED (TRX) must be
checked with the"ACT" LED.
The module state varies
depending on their states (on,
off or flashing) (see Table 2.1).
• In all cases, power up/down the
IDR IDO 3G using the primary converter's
"I/O" switch (Plate 6.IV, item 2 or 9) (wait
until the power supply stops before putting
the switch back to "I").
• If the fault persists, contact the
manufacturer's customer support service.
FAULTS INDICATED BY LEDS (2/4)
