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CAUTION FOR SERVICING
When servicing or replacing the CRT, high voltage somethimes remains on the anode. So,
completely discharge high voltage before servicing or replacing the CRT so as to prevent a
shock to the service person.
CRT Anode Discharge
1. When you check the CRT anode or replace the CRT, discharge the CRT anode to the
external conductive coating (aquadag) of CRT, especially when checked right after
power turn-off.
2. Ground one end of a jumper wire which has a resistor (30 kV < resisting pressure 100
MΩ) and connect the other point to the CRT anode.
Note: Grounding must be done first.
This model has a section that does not share a common ground with the power supply
section. The different sections are referred to as the hot section and the cold section in the
precautions below.
1. Do not touch the hot section and the cold section at the same time. You may be hit by
an electric shock.
2. Do not short the hot section to the cold section. This could blow the fuse or damage
parts.
3. Never measure the hot section and the cold section at the same time when using tools
such as oscilloscopes or multimeters.
4. Always unplug the unit before beginning any operation such as removing the
chassis.
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