Trouble on an Accessory
Step 10.
Plug the substitute extra-alert device into the ac power outlet, if required.
Step 11.
Using a voice terminal, dial an outside call to the line with the substitute
extra-alert device.
IF
The substitute extra-alert device
works properly,
The substitute extra-alert device
THEN
Trouble found.
It is the original
extra-alert device.
Read the Maintenance Exchange
Procedures at the end of this
manual.
does not work,
Trouble found.
It is caused by
the control unit or the Type III
Cartridge connected into the con-
trol unit.
Reconnect the original
extra-alert device. Then read the
Maintenance Exchange Procedures
at the end of this manual.
Page 93
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