Weinmann BiLevel-ST VENTImotion WM 24800, Service And Repair Instructions

Page: 42 / 64

42 Repairguide for VENTImotion/VENTIlogic
7.9 Replace battery on control board
Tools and equipment required
• ESD protected work-station
• 3 mm Allen key
• Phillips screwdriver, size 1
1. Open the device (see "7.2 Open device" on
page 31).
2. Undo the screw
53
on the battery holder and
take spring
54
and seal
55
off control board
50
.
Put the parts on one side.
3. Take battery
52
out of the holder on the control
board.
4. Put in a fresh battery
52
.
5. Insert spring
54
and seal
55
on the battery hold-
er on control board
50
and fit both parts with
screw
53
.
6. Close the device (see "7.3 Close the device"
on page 32).
7.
Reset the date and time
as described in the
VENTI motion /VENTI logic hospital manual.
Caution!
After changing the control board, always set the
date in the following sequence: 1. YEAR,
2. MONTH, 3. DAY, otherwise you may get a
faulty display.
8. Test the device (see "4. Test the device" on
page 13).
7.10 Dismantle device outlet
Tools and equipment required
• ESD protected work-station
• 3 mm Allen key
• Phillips screwdriver, size 1
1. Open the device (see "7.2 Open device" on
page 31).
2. Remove the mains supply unit (see "7.4 Re-
place mains supply unit" on page 33).
3. Remove the power board (see "7.5 Replace
power board" on page 34).
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