Saeco GAGGIA VELASCA CMF-OTC, Service Manual

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GAGGIA VELASCA 05 SERVICE MODE
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5.1 Test Mode
Introduction
This document describes the manual Test Mode of the GAGGIA VELASCA coffee appliance.
To enter Test Mode
To activate the manual Test Mode the user must press at the same time the “Espresso” and “Menu”
(“Special Drinks” for OTC version) buttons while connecting the CA to the power supply.
Once entered the Test Mode the first page of seven is shown:
Entering page: the display shows:
a) The name of the machine and the installed firmware version
b) The supply voltage
c) The AC supply net frequency detected by the CA
Page 1: Keyboard and display colors testing:
1) Espresso button
2) Coffee button
3) Steam button (Aroma button for OTC version)
4) Hot Water button (Cappuccino button for OTC version)
5) Aroma button (Milk Froth button for OTC version)
6) Menu button (Special Drinks button for OTC version)
7) Stand-by button
8) Clean button (only OTC version)
9) Menu button (only OTC version)
Page 2: Input signals testing:
a) Water tank sensor
b) Door closed/opened microswitch
c) Coffee Brewing Unit insertion microswitch
d) Dreg Drawer insertion microswitch
Page 3: Coffee Brewing Unit testing:
a) Up/Down BU movement (24V DC)
b) BU effort current
Page 4: Hydraulic circuit loads testing (Pump, Electrovalve):
a) pump (120-230V AC)
b) 2 ways Electrovalve (24Vdc)
Page 5: Heater and Grinder testing:
a) Heater (120-230V AC)
b) Grinder (320V DC)
Page 6: Autodose quantities:
a) Light
b) Med
c) Strong