Merlin 3070 Service And Maintenance Manual page 192

MESSAGE DETAIL
*ALL
NETW
MEANING
1.
Repeat the sweep (press Next, then Detail) to verify
the existence of the problem.
2.
If the problem persists, check for bent or broken pins
in the backplane at the Line Module in slot 7. If the
pins are undamaged, replace the module. Repeat
the sweep.
3. If the problem persists, check for bent or broken pins
behind the Diagnostic Module. If the pins are
undamaged, replace the module. Repeat the sweep.
4. If the problem persists, diagnostics may still be
executed, but the system's analog voice network and
tone plants will not be tested.
Voice Network Failure
A voice network failure has occurred on one or more links
in the system, but the fault could not be isolated to a
particular module.
1. Repeat the sweep (press Next, then Detail) to verify
the existence of the problem.
2. If the problem persists, remove a Line, Voice
Terminal, or Basic Telephone Module from any slot
other than slot 7 or slot 9. Check the slot for bent or
broken backplane pins and repeat the sweep. If the
problem clears, that module is suspect.
If the problem persists, repeat this step until
all Line and Voice Terminal Module slots
(other than slots 7 and 9) are empty.
If the problem persists when only slots 7 and 9
3.
contain modules, remove the Voice Terminal or
Basic Telephone Module from slot 9. Check the slot
for bent or broken backplane pins, and insert a Voice
Terminal Module from another slot into slot 9.
Repeat the sweep.
4.
If the problem still persists, remove the Line Module
from slot 7 and check the slot for bent or broken
backplane pins. Insert a Line Module from another
slot into slot 7. Repeat the sweep.
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