Tyco Healthcare KENDALL 6060 Novamedix A-V Impulse System, Руководство по обслуживанию

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4. COMPONENT REPLACEMENT PROCEDURES
THE CONTROLLER SHOULD ALWAYS BE DISCONNECTED FROM LINE
VOLTAGE BEFORE OPENING THE CASE.
Before replacing any component, read the procedure completely.
If you have any doubts about how to replace a component, contact the Kendall
Service Center.
Incorrect servicing could lead to components being damaged. If, after replacing a
component, there are still problems that you cannot correct, contact the Kendall
Service Center.
When you have replaced the part, and closed the case, you should always check that the
fault has been corrected, and that the controller is operating properly by performing the
complete controller functionality tests (see Section 2.2 or 2.3).
4.1 OPENING AND CLOSING THE CONTROLLER CASE
Opening up the case
Place the controller handle-side up on a flat surface, which will not scratch or otherwise
mark the case. Use a 3mm hexagon Allen wrench to unscrew the four case retaining
screws located at each corner. Turn the unit front-side up resting on the handle.
DO NOT try to separate the parts of the case at this stage. Ensure that the wires
connecting the power switch to the controller electronics, and the 7 way flat flexible cable
connecting the membrane switch panel to the processor PCB assembly, are not strained.
With the membrane switch panel facing you, very gently lift the top cover until the
edge of the case front rests on the top edge of the bezel that surrounds the LCD. To
the right side of the display you will see a flexible cable going into a small connector.
Use a fingernail to gently open the latch on the connector. With your fingers pull the
cable out of the connector. The case front can now be separated.
DO NOT allow the flexible cable to become creased or the cable will be damaged,
and the membrane switch panel will have to be replaced. The wires connecting the
power switch to the electronics are long enough to allow the two halves of the case to
be laid beside each other.
Closing the case
With the display facing you, locate the bottom lip of the case front into the back of the
case rear molding of the controller. Hold the membrane switch panel 7 way flat flexible
cable, and carefully lower the case front molding onto the case rear, making sure that
the flexible cable comes over the front of the processor PCB. Avoid touching the
contact end of the cable.
DO NOT pull the flexible cable into a tight curve.
When the base of the case front is resting on the top edge of the LCD bezel, check
that the latch on the connector for the control panel flexible cable is open. Hold the
cable between the thumb and forefinger and carefully guide the cable into the
connector, and then close the latch. Carefully close the case making sure there are no