Electrolux Wascator W100 Service Manual page 112

Service
Manual
Description
Fig.
The timer is electronic and consists of one circuit board. One half of the circuit
1
board contains microprocessors, program memory, temperature control, power
supply circuits, etc. The other half contains relays and interface suppression
circuits. The programmer has the following outputs and inputs:
• Outputs which, via relays, control the various machine functions, such as
motor, water valves and safety lock.
• Outputs which control the information that is to appear on the display window
mounted on the board's other side.
• Inputs which detect which buttons are depressed on the front panel.
• Inputs which give information about the machine's status from safety lock,
level sensor, temperature switch and coin meter, if there is one.
The programmer is controlled by the instructions stored in its program memory.
The program memory stores information about procedures, service program,
relay control, input detection, etc. In addition, the memory contains the machine's
standard programs.
1
X80
Temperature
sensor
X79
Level detection
Fuse
1A/250 V
X81
Out-of-balance
switch
X83
Coin meter
X82
Voltage supply
X84
Free wash
Fuse Fuse
1A/250 V
1A/250 V
Service switch
Interface left = service
RS232 right = normal
Connection for
buttons, front panel
Program memory
23. Timer
X76
Valves
X78 X77
Option Valves
S N
Microprocessor
8 9110
Type
Edition
X75 X74 X73
Drain Motor relays Clutch
1
23
Page
X72
Door safety
lock
X71
Main voltage
to circuit
board relays
X70
Price
decrease
1426