Guardian HR60, Руководство по установке и эксплуатации

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Guardian Telecom Inc.
Installation and Operation
Model HR60
Page 6
Field Repairs
Note: The only field repairs permitted are the replacement of fuse and handset,
and setting the tone/pulse jumper. All other repairs or alterations must be
carried out by Guardian Telecom or an Authorized Service Depot.
See: Warranty For
Details
Maintenance
If access to the inside of the HR60 is required proceed as follows.
See: Figure 3 - Internal
Layout & Wiring
•
Remove the eight #10 Philips drive faceplate screws, remove the faceplate
and unplug the harness.
•
Replace the fuse or handset, or change the tone/pulse setting as required.
Note: Be careful when
removing the faceplate,
the circuit board is on the
faceplate.
Note: Replace the fuse only with a 0.25 amp 2AG fast blow. Failure to do
so will void warranty. If, on reconnecting power, the fuse fails, check the
telephone system wiring. The fuse protects the Tip and Ring line from the
telephone system. It is usually powered at 48 volts DC and must not be
connected to 120 volts AC.
•
Reconnect the harness, ensure all connections are tight, then replace the
faceplate and secure with eight #10 Philips drive screws.