7-2
1.DAILY TEST
If MAIN CPU and MODEM CPU are “NG”:
- Clear SRAM by turning off power.
If “NG” is still displayed, try “ALL CLEAR” of EEROM.
After EEROM cleat, setup the system again.
If REMOTE RT and NBDP are “NG”:
- Check the connections between the connected units.
- Check system settings of the connected units.
- Check the system settings and DIP switch settings of DSC-60.
- Check whether the problems, if any, are about the main unit or connected units, by executing
the loopback test.
1.2 If “NG” is displayed:
If NG is displayed in the test results, take the action in the table below first.
Item Reference pages Faults PCB
Chapter 4 1. Setup of MMSI
and ----, page 4-1.
Chapter 4 2.9 System setup,
page 4-14.
Chapter 5 2.2 About test
content, page 5-3.
Chapter 3 2.PCBs, page 3-3.
RCVR 1
Chapter 5 2.2 About test
content, page 5-3.
RX (For Ruoutin RX
PCB)
RCVR 2 Chapter 3 2.PCBs, page 3-3.
RX (For Ruoutin RX
PCB)
Action
MAIN CPU
CONTROL/MODEM
MODEM CPU
Clear SRAM by turning
off power. If NG is still
displayed, execute ALL
CLEAR of EEROM. After
EEROM has been
cleared, execute the test
again. If NG turns to OK,
make the system setting
as required.
If MAIN CPU, and
MODEM CPU are OK,
and If both RCVR1 and 2
are NG,
CONTROL/MODEM
board is faulty, and if one
of RCVRs is NG, the
receiver board connected
to RCVR with NG is
faulty.
REMOTE DP
Loop back test NG
Q.
CONTROL/MODEM
Chapter 5 3.Loop back test,
page 5-7.
Chapter 4 3.Setting DIP
Switches, page 4-17.
REMOTE RT
Chapter 4 2.9 System setup,
page 4-14.
Check the connections,
the system settings, and
DIP switches. Also, check
the related settings of the
connected units. If all of
these are OK, execute
the loopback test.
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