Users Manual SPA 1500.pdf - Jotron
Users Manual SPA 1500.pdf - Jotron
Users Manual SPA 1500.pdf - Jotron
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Handbook page<br />
31/94<br />
<strong>SPA</strong> 1500<br />
Maintenance Instructions<br />
1.2 RECOMMENDED CONTROL ROUTINES<br />
• Check all central units and field units for damage or other irregularities that can cause<br />
damage to the system.<br />
• Operation control.<br />
This control must be carried out on all access units.<br />
Use the microphone and check that access is possible from all the access units.<br />
The Operating instruction doc no. 96106-000-OI can be used as a guide during the test.<br />
Check that audio is clear and that the loudspeaker coverage is OK.<br />
Verify that muting is OK for each access unit local loudspeaker when PA message.<br />
Check access in correct zones.<br />
• Override outputs<br />
Check that override function is OK on all volume control units.<br />
Write down every irregularity in the log book.<br />
1.3 FAULT FINDING<br />
1.3.1 Fuses<br />
Replace a blown fuse with a new one of the same value. If the second fuse blows, locate and<br />
correct the fault.<br />
Make sure that you always have a good supply of fuses.<br />
1.3.2 Contacts<br />
A high percentage of failures are caused by faulty cable connections, plugs, sockets etc.<br />
Such details are checked very carefully during installation, but it is difficult to guard fully<br />
against vibration, corrosion and dust.<br />
You are therefore advised to make an occasional thorough check on all plugs, sockets, terminal<br />
boards, switches and relays.<br />
1.3.3 Equipment/loudspeakers<br />
Keep all equipment clean - outside and inside. Keeping the main switch off, remove cover plates<br />
and clean all parts carefully - using a soft brush. Be careful not to damage components. Keep all<br />
ground connections tight and clean.<br />
96106-000-MI Maintenance instructions.doc<br />
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