TECHNICIANS' manual
- English -
45 di 52
12.3 Electronic control unit
TR1
IC5
IC2
C39 C40
C38
C41
CN15
CN1
CN5
DSW-1
ON
CN11
CN2
CN3
CN7
CN4B CN4A
CN8
CN9
CN10
CN12
CN13
CN14
RL1
RL2
RL3
RL4
IC10
CN16
CN6
CN1 Level LED
CN2 Not used
CN3 Frothed milk NTC
CN4A Level probe
CN4B Volumetric counters
CN5 Not used
CN6 Not used
CN7 Tea button
CN8 Auxiliary
CN9 RS 232 connection (Wi-Fi)
CN10 Keypad connection
CN11 CPU programming
CN12 Auxiliary
CN13 Auxiliary
CN14 Auxiliary
CN15 Board power supply
CN16 User outputs
DSW1 DSW2 DSW3 DSW4 CONFIGURATION
OFF ON OFF ON 2GR COFFEE
OFF ON ON ON 2GR AUTOSTEAMER
ON ON OFF ON 3GR COFFEE
ON ON ON ON 3GR AUTOSTEAMER
Standard setting of the circuit boards that are
supplied as spare parts.
Modify the SW setting according to the charac-
teristics of the product
CN1 - LEVEL LED
Slow
flashing
The heating unit is being
filled with water
Fast flashing
Timeout: the heating unit
water filling phase has
stopped
Steady light Water filling OK