VEGA VEGASWING 75A - Manual (Page 15)

VEGASWING 71A and 75A 15
5.2 Replacement of the electronics
The removal of the electronics unit will dam-
age the housing seal. Therefore only open
the instrument if you want to insert a new
electronics unit.
To replace the electronics in case of failure,
the instrument must not be removed. Pro-
ceed as follows to replace the electronics
unit:
• Separate VEGASWING from operating
voltage.
• Loosen the plug (1), by screwing on the
knurled ring.
• Loosen the plug insert (2) with a screw-
driver on the four slots (10) and pull it care-
fully out of the housing (6).
• Remove the plug of the two connection
cables (7) from the socket on the board
(8).
• Grease (thin layer) the seal ring (4) of the
new plug insert with an acid-free grease.
• Insert the connection cables (7) into socket
(8) on the board of the new oscillator.
• Lower the plug insert (2) into the housing.
Make sure that the locking tab (3) is ap-
proximately above the notch on the hous-
ing edge (5).
• Carefully push the plug insert (2) from
above into the housing (6). Push the four
snap-on hooks (9) with a screwdriver
inwards so that the plug insert can be
more easily inserted into the housing. Make
sure that the board does not get damaged.
• Push the plug insert (2) flush to the hous-
ing (6). Make sure that the locking tab (3)
snaps into the notch on the housing (5).
You can hear it when the snap-on hooks
(9) snap in the groove inside the housing.
It is not possible to loosen the parts without
damage.
• Now screw the plug (1) back onto the
housing.
VEGASWING is again ready for use.
Note that the switching point may change
slightly because of the electronics replace-
ment.
Diagnostics
1 Plug
2 Plug insert
3 Locking tab
4 Seal ring
5 Notch
6 Housing
7 Connection plug
8 Socket
9 Snap-on hooks (4 pcs.)
10 Slots (4 pcs.)
5.3 Maintenance
VEGASWING 71A and 75A are maintenance-
free.
Fig. 5.2