Replacing The Circuit Board - Weinmann MEDUMAT Basic Servicing And Repair Instructions

6.12 Replacing the circuit board

Tools required:
• Crosstip screwdriver, size 2,
• Side nippers,
• Cable tie,
• Calibration device WM 22836.
1. Open the device (see "6.4 Opening the
device" on page 22).
2. Remove the battery
19
holder and then pulling connector
circuit board.
Only pull on the connector, not on the lead!
3. Pull connectors
X2, X5, X4
in Basic p) from the circuit board.
X3
4. Release the flat cable from the locking
device : To do so, pull the upper part of the
X7
locking device upwards. You can then pull out
the cable.
5. Carefully pull the tube
6. Using side nippers, cut through the cable
tie at the tube
53 47
7. Carefully pull the tube
If the tube cannot be pulled off, you may cut
through it (e.g. using a scalpel).
In such cases, the tube must be replaced (as
explained in step 9.
8. Unscrew the two screws
defective circuit board
9. If you have cut through the tube
point , please replace it as follows:
7.
– Using side nippers, cut through the cable
tie at the distributor.
53
– Pull off the tube.
– Slide a new tube
secure with a cable tie.
by lifting it out of its
from the
X1
(and also connector
from the sensor
52 B2
.
from the sensor
47 B1
and remove the
41
.
22
under
47
onto the distributor and
47
X7
X2
X5
.
.
52 B2
Repair information and repair instructions
X3
X4
(Basic p only)
47 53 B1
53
(Basic p only)
47
X1
19
22
41
29