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NG1000 Troubleshooting Manual
Responding to alarms
Issue 0.4 2010-10-12
Page 1-27
Modem Replacement
See Figure
MD-1
in the Mechanical Drawings section (Section 6) of this manual.
1. Open the system cabinet’s rear door and locate the modem (U5) mounted on a tray near the
top of the cabinet.
2. Disconnect cables P16 and W4P2, and the telephone cable from the modem.
3. Remove the modem from the system cabinet, noting it is secured using two M4 screws.
Retain hardware to install the new modem.
4. Locate or obtain a replacement modem (Nautel Part # UW66). Reverse
Step 1
through
Step 3
to reinstall the new modem. If necessary, refer to
Table 3.4 on page 3-3
for
connection details.
Audio Surge Protector Replacement
See Figure
MD-1
in the Mechanical Drawings section (Section 6) of this manual.
1. Open the system cabinet’s rear door and locate the audio surge protector (U4) mounted on a
tray near the top of the cabinet.
2. Unscrew the wiring on each side of the audio surge protector.
3. Remove the audio surge protector from the system cabinet, noting it is secured using four
M4 screws. Retain hardware to install the new audio surge protector.
4. Locate or obtain a replacement audio surge protector (Nautel Part # UE60). Reverse
Step 1
through
Step 3
to reinstall the new audio surge protector. If necessary, refer to
Table 3.4 on
page 3-3
for connection details.
Summary of Contents for NG1000
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Page 56: ...NG1000 Troubleshooting Manual Responding to alarms Page 1 34 Issue 0 4 2010 10 12 ...
Page 122: ...NG1000 Troubleshooting Manual Wiring connector lists Page 3 10 Issue 0 4 2010 10 12 ...
Page 128: ...NG1000 Troubleshooting Manual Reading Electrical Schematics Page 4 6 Issue 0 4 2010 10 12 ...
Page 153: ...Issue 0 4 2010 10 12 MD 6 Figure MD 6 NAPE82 Exciter Control PWB ...
Page 159: ...Issue 0 4 2010 10 12 MD 12 Figure MD 12 NAPA24 PA PWB C1 C2 C8 Q1 ...
Page 162: ...NG1000 Troubleshooting Manual List of terms Page 6 2 Issue 0 4 2010 10 12 ...
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