Nautel VX150 - Page 46

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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS

PAGE 3.1.38 VERSION 2.0 2023-04-20

Figure 3.1.4: Cable Disconnections

Figure 3.1.5: BNC Connector Removal

Cables to disconnect

Main Page

Contact Information3
RELEASE CONTROL RECORD7
SECTION 3.1: Responding to alarms9
- Corrective Maintenance9
  - On-Air Troubleshooting9
  - Off-Air Troubleshooting10
- Electrostatic Protection11
- Identifying and Troubleshooting an Alarm12
- Replacement Procedures44
- Exciter PWB Replacement45
- Analog Audio PWB Replacement48
- PA Power Supply Replacement51
- Power Supply (+12 V) Replacement53
- Cooling Fan Replacement56
- Front Panel User Interface (FPUI) Display Replacement62
- Power Amplifier PWB Replacement68
- Pre-Amplifier/IPA PWB Replacement73
SECTION 3.2: Parts Information75
- Family Tree75
- How to Locate Information About a Specific Part75
- Column Content76
SECTION 3.3: Wiring Information133
- Wiring Lists Provided133
- Connector Mating Information133
- Wire Colours133
- Printed Wiring Board Patterns133
SECTION 3.4: Electrical Schematics137
- Component Values137
- Graphic and Logic Symbols137
- Reference Designations137
- Unique Symbols138
  - Type of Inputs and Outputs138
  - Logic Level Convention138
- Identifying Schematic Diagrams138
- Structure of Schematics139
- Locating Schematic Diagram(s) for a Functional Block139
- Locating a Part or Assembly on a Schematic140
Figure SD-1: VX150/VX300/VX600 System Schematic (Sheet 1 of 2)143
Figure SD-2: VX150/VX300/VX600 System Schematic (Sheet 2 of 2)144
Figure SD-3: VX1 System Schematic (Sheet 1 of 2)145
Figure SD-4: VX1 System Schematic (Sheet 2 of 2)146
Figure SD-5: VX1.5/VX2 System Schematic (Sheet 1 of 2)147
Figure SD-6: VX1.5 /VX2 System Schematic (Sheet 2 of 2)148
Figure SD-7: NAPI189 Analog Audio PWB (Sheet 1 of 2)149
Figure SD-8: NAPI189 Analog Audio PWB (Sheet 2 of 2)150
Figure SD-9: NAPI187A System Interface PWB (Sheet 1 of 2)151
Figure SD-10: NAPI187A System Interface PWB (Sheet 2 of 2)152
Figure SD-11: NAPI188/01 Power Supply Interface PWB (VX150/VX300/VX600)153
Figure SD-12: NAPI188 Power Supply Interface PWB (VX1/VX1.5/VX2)154
Figure SD-13: NAPI193 Front Panel User Interface PWB155
Figure SD-14: NAPA41 Pre-Amp/IPA PWB156
Figure SD-15: NAPA40A Power Amplifier PWB157
Figure SD-16: NAPF16A Low Pass Filter PWB158
Figure SD-17: NAPP15A Directional Coupler Bottom PWB159
Figure SD-18: NAPH15 2-Way Splitter PWB (VX1.5/VX2)160
SECTION 3.5: Mechanical Drawings161
- Identifying Mechanical Drawings161
- Content of Mechanical Drawings161
- Locating a Part or Assembly on a Mechanical Drawing161
Figure MD-1: VX150/VX300/VX600/VX1 Transmitter (top view)163
Figure MD-2: VX150/VX300/VX600/VX1 Transmitter (side view)164
Figure MD-3: VX1.5/VX2 Transmitter (top view)165
Figure MD-4: VX1.5/VX2 Transmitter (side view)166
Figure MD-5: VX Transmitter (front view)167
Figure MD-6: NAPI189 Analog Audio PWB168
Figure MD-7: NAPI187A System Interface PWB169
Figure MD-8: NAPI188/01 Power Supply Interface PWB (VX150/VX300/VX600)170
Figure MD-9: NAPI188 Power Supply Interface PWB (VX1/VX1.5/VX2)171
Figure MD-10: NAPI193 Front Panel User Interface PWB172
Figure MD-11: NAPA41 Pre-Amp/IPA PWB173
Figure MD-12: NAPA40A Power Amplifier PWB174
Figure MD-13: NAPF16A Low Pass Filter PWB175
Figure MD-14: NAPP15A Directional Coupler Bottom PWB176
Figure MD-15: NAPH15 2-Way Splitter PWB (VX1.5/VX2)177
Figure MD-16: 2-Way Combiner PWB (Nautel Part # PU03B) (VX1.5/VX2)178
SECTION 3.6: List of terms179
Blank Page132

Nautel VX150 - Page 46

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