Merlin 3070 Service And Maintenance Manual page 178

USING THE DIAGNOSTICS MODULE
The Diagnostics Module can be used alone, with suspected faults
indicated on the front-panel display, or used interactively with a data
terminal. The preparation for both methods of testing is the same.
Separate instructions are provided for each method when actual
diagnostic testing begins.
Preparing for Diagnostics
1. Get a pencil and paper.
You may want to record diagnostic messages while the tests are
running.
2. Clear users from the system.
Before testing the system, make sure there are no active calls.
To do so:
A.
At the control unit, set the Administer/Attendant switch on
the Processor Module to Administer.
B. Go to the voice terminal
designated intercom 10
(the Administrator/Attendant
console) and set its T/P
switch to P (program mode).
Enter line administration
C.
mode by pressing the button
beside the upper pair of
flashing lights (the fourth
button in the left column
as shown by the arrow).
D. If the green light by the button you pressed is flashing, one
or more calls are active. When the green light is on
steadily, the system is idle and ready for testing.
E. Slide the T/P switch to center position.
Set the Administer/Attendant switch on the Processor
F.
Module in the control unit to Attendant.
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