Replacing Electronic Mainboard - Nespresso EF 737 Service Manual

Repair

Replacing electronic mainboard

Tools:
- Torx screwdriver T10
- Long-nose pliers
The service engineer must be
earthed using an earthing
strap!
Procedure:
1 Follow general disassembly stage 1 (see
page 24).
2 Place earthing strap around the wrist and
connect to the earthing cable on the un-
plugged machine! In this way a potential
difference is avoided.
3 Unplug all connectors and wires from the
electronic main board (59).
4 Loosen fastening screw (12) and remove
casing with defective electronic mainboard
(59).
5 Replace electronic mainboard (59).
6 Assemble in reverse sequence (see wiring
diagram, page 39).
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