Samsung Electronics 1-1
1. Precautions
1-1 Precautions for the Service
• Use the standard parts when replacing the electric parts.
– Confirm the model name, rated voltage, rated current of the electric parts.
• When repairing the equipment, connection of the harness parts must be firm and solid.
– A loose connection may cause noise or other malfunction.
• When assembling and disassembling the equipment while it is laid down, lay it on soft cloth.
– Otherwise it may scratch the back of the exterior of the product.
• Remove dust or dirt completely from the housing block, wiring block and service parts during repair.
– This helps prevent the danger of fire caused by tracking or short circuit.
• Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using
adjustable wrenches.
• Check the status of the components’ assembly after repair service.
– The status must be the same as before the repair service.
1-2 Precautions related to static electricity and PL
• The PCB power supply block is susceptible to static electricity.
Therefore, care must be taken during repair or measuring while the power is on.
– Wear insulation gloves for PCB repair or measuring.
• Check whether the installation location is at least two meters away from
other electronic products such as TV, video, or audio.
– Otherwise, the video quality might be degraded or noise might be generated.
• Do not let end users repair the products themselves.
– Unauthorized disassembly might cause electric shock or fire.
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