TissueLink Aquamantys System, Руководство по обслуживанию

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9-3
Removing the RF generator PCB (RFGEN_TL1)
First remove the rear panel and unplug all connectors. 7 nuts hold
the RF generator PCB in the housing. Unscrew them, remove the
washers and the two serrated washers and carefully lift the PCB out.
Make sure during installation (replacement) of the RF generator PCB
that the serrated washers are installed in the same positions (bores
with copper ring in the PCB) as these serve for equipotential bonding
with the housing. When replacing the PCB apply a thin layer of
thermal compound on the heat sink to improve heat transfer to the
cooler fan unit. Caution: Make sure not to reverse the connector to
the power supply PCB because residual charges in the power supply
capacitors can damage the electronics. Therefore plug in on the
power supply PCB first. Then fit the Riacon connector with its “large
face” towards the big capacitor (C121).
Removing the power supply PCB (Supply_TL1)
The PCB is fastened to the power supply unit (aluminum plate) with
4 nuts. Make sure during installation (replacement) that the serrated
washer is installed in the same position (bore with copper ring) as it
serves for equipotential bonding with the housing. Do not reverse the
connector to the RF generator PCB (residual charge in power supply
capacitors) (See Section 3.4).
Removing the cooler fan unit
After swinging down the rear panel, disconnecting the fan cable and
removing the two fastening screws you can take the cooler fan unit
off the rear panel. Screw on but do not yet tighten the two nuts
holding the cooler fan unit during installation. Tighten them only
when the rear panel has been completely installed and the fan unit
screwed to the heat sink; this will ensure the cooler fan unit is
fastened without stress. Apply some thermal compound to enhance
the heat transfer when replacing the cooler fan unit.
Removing the pump head and the drive unit
Unscrew the two fastening screws to remove the pump head.
To remove the drive unit, unscrew the 4 screws on the housing after
having removed the pump head and the connector to the RF
generator PCB.