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General| Brand | Nexo |
|---|---|
| Model | NX242 |
| Category | Controller |
| Language | English |
Instructions for safe usage, cleaning, ventilation, heat sources, and power cords.
Warnings about voltages, moisture, servicing, and mandatory earthing requirements.
FCC rules for Class B digital devices, potential interference, and resolution measures.
Specifies servicing requires qualified personnel and adherence to operating instructions.
Emphasizes mandatory earthing of the appliance for safety and system operation.
Details the switch mode power supply's universal AC input voltage range (90-264V).
Guidelines for rack installation, including grounding, shielding, and blank panel usage.
Explains fuse function, when it blows, and replacement by certified personnel only.
Records product versions, PCB references, and associated changes or fixes.
Step-by-step instructions for safely removing the unit's top panel, including screw torque advice.
Procedures for disassembling and removing the printed circuit board, with ESD precautions.
Details crackles on outputs and blinking Sense LED, with a temporary workaround using input B.
Instructions to locate and remove the C1516 component (SMD capacitor) for fault resolution.
Visual guide and steps for removing the C1516 capacitor with a soldering iron.
Locating the 'flying' capacitor (U5401), identified as a traditional capacitor.
Differentiates between Texas Instrument and Philips components for U5401 based on serial number for correct fix.
Instructions to remove the capacitor if a Philips component (U5401) is identified.
Specifies the required capacitor connection between pins 2 and 8 for Texas components (U5401).
Describes noise problems on Nxtension cards with specific serial numbers and a workaround.
Details the hardware correction to solder a jumper between two pins on the Nxtension board to fix noise.
Provides visual guidance on soldering a hard wire for the Nxtension board fix, ensuring vibration resistance.
Lists critical components, their references, and specifications, emphasizing exact replacement for warranty.
Circuit diagrams for the switching power supply and linear voltage regulators.
Schematics detailing the analog signal processing and output stages.
Diagrams showing the digital signal processor, main CPU, memory interfaces, and latches.
Circuit diagrams for front panel buttons, LEDs, encoders, and interface connections.
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