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1 General information
1.4 Safety instructions
Dentsply Sirona
Service Manual CEREC Primescan AC, Primescan AC, CEREC Omnicam AC, Omnicam AC
10
66 81 832 D3696
D3696.076.01.02.02 05.2019
1.4.5
Disconnecting the power supply
If the device must be opened during maintenance work, this may be
done only after disconnection of the power supply to the device.
CAUTION
Damage/danger resulting from unauthorized alterations
Modifications to the device may only be performed following prior
consultation with us. We are not liable for unauthorized alterations of
any kind.
Prior to opening the unit, connecting a measuring instrument or
replacing parts:
➢ Turn the device off.
➢ Disconnect the power plug.
1.4.6
Replacing parts
WARNING
Potentially lethal shock hazard when working near the power supply
unit
Disconnect from the line power supply.
Check for zero potential.
Switch the device off and disconnect the power plug before replacing
parts.
The item numbers for ordering spare parts can be found in the spare
parts catalog on the combi stick.
The diagrams contained in the spare parts catalog provide a useful
guide when replacing parts.
Before replacing the boards, observe the ESD protective measures.
1.4.7
Measurements
Always switch off the device before connecting the measuring
instrument.
Select the correct current/voltage type and adjust the measuring range
to match the expected readings.
Perform continuity tests only on devices which are switched off.