Warnings, Cautions And Safety Precautions; General Reassembly/Refitting Comments - Philips M3001A Service Manual

Warnings, Cautions and Safety Precautions

High Voltage
Warnings, Cautions and Safety Precautions
• Do NOT disassemble the product past the point described in these procedures.
• High Voltage Warning—Voltages dangerous to life are present in the Instrument when it is
connected to the mains Power Supply. Do not perform any disassembly procedures other
than Server and Extension removal with power applied to the Instrument. Failure to adhere
to this warning could cause serious injury or death.
• Residual High Voltage—There may be hazardous voltages stored in capacitors on the
Power Supply board even when the Instrument is not connected to the mains Power Supply.
High voltages are present on the Power Supply board for up to 20 seconds after
disconnecting the mains power cord so always disconnect the Power Supply cord and wait
at least 20 seconds before removing or refitting the Power Supply board.
• Battery Warning—Never insert a battery without the Power Supply board being present.
You may blow the battery fuse on the Connector Board.
• Power Cord Warning—Do not connect a mains power cord to a Power Supply that has
been removed from the Monitor.

General Reassembly/Refitting Comments

• Battery Door—When inserting the Monitor chassis, always open the battery compartment
door to avoid striking the door clip.
• Ribbon Connections—Make sure male-female ribbon connections are correctly lined up.
• Open Component—Do not allow anything to fall into the open component.
220
breakdown of the entire Instrument since the Measurement Server and the
M3016A Measurement Server Extension cannot be disassembled.
This concept refers to voltages dangerous to life. High voltages can be found
in the Instrument when it is connected to the mains Power Supply and in the
capacitors on the Power Supply board even when the Instrument is not
connected to the mains Power Supply.
Repairing the Instrument