Electrolux W365H Service Manual page 89

Service
Manual
Description
The programme unit of the machine consists of
Fig.
1 the following parts:
• CPU card A1
Fig.
The CPU card uses the various control
2
programmes in the card programme memory
to check all the functions of the washing
machine. The standard programmes are also
stored in the programme memory
(programme numbers 991 - 999) together
with any user-specified programmes.
The CPU card controls the display card A2
(display window, control panel and the A3
card reader), I/O cards A11 and A12 and the
motor controller U1 via the serial data
interface.
• Display card A2
The display card receives data from CPU
card A1 about which text to display in the
display window. The display card converts
this data and control the display window in
order that the correct data is shown.
The display card also senses which keys are
pressed on the keyboard and sends the
received information to the CPU card.
• Card reader A3
Using the card reader, it is possible to copy
washing programmes from the CPU card
memory to a memory card or from memory
cards to the CPU memory.
The memory cards can then be inserted in a
card reader of another washing machine or
in a reader connected to a PC. This allows
copying of washing programmes from one
machine to another or between a PC and
washing machines. The card reader is
connected to the display card A2.
438 9145-41/03
03.11
23. Programme unit
1
I/O card 2 A12
I/O card 1 A11
CPU card A1
Display card A2
23
Card reader A3
5207 5227
3