Philips HD5720/30 User manual

ServiceManual
Philips Consumer Lifestyle
Published by Philips Domestic Appliances and Personal Care Printed in the Netherlands © Copyright reserved Subject to modification
One-touch Espresso maker
HD5720/30
08/02
PRODUCT INFORMATION
- This product meets the requirements regarding
interference suppression on radio and TV.
- After the product has been repaired, it should function
properly and has to meet the safety requirements as
officially laid down at this moment.
TECHNICAL INFORMATION
- Power rated : 1350 W
- Standby power : 3 W
(switched off)
- Standby power : 80 W
(switched on)
- Voltage : 220 - 240 V / 50 - 60 Hz
- Colour setting : Brushed stainless steel red
- SAP coding : HD5720/30
OPTIONAL (accessories)
- Hardness test strip Service code : 4222 459 45145
- Durgel bottle DE - GB Service code : 4222 459 45200
- Durgel bottle GB - NL Service code : 4222 459 45201

HD5720/30
2-23
- Now remove on both sides the upper and lower screws
where the control panel is fixed to the frame!
See picture for positions.
Remove upper screws
on both sides
Remove lower screws
on both sides for
removing the control panel
- Remove the steam knob assy, by using a tool to gently push
the steam knob assy from behind.
- Now you are able to remove the control panel.
- The control panel is electrical connected to the machine by
the band cable connection.
- The topcover can be taken of.
Remove the service door:
- The service door can simply be removed by removing the
steel wire located on the left side at the hinge.
- Pull the wire out the hinge and the service door can be
taken away.
Remove bottom cover:
- To reach the micro switch that detects the presence of the
Coffee ground container, the bottom cover has therefore to
be removed.
- At the bottom of the appliance unscrew 7 Torx screws and
remove the cover, micro switch and the lift drive belt can be
reached easily.
- If the above steps are carried out all the parts can be reached
and if needed dismantled/replaced.
For your safety, be sure the plug is
disconnected from the mains!
- In below steps the dismantling from the appliance has been
written down in a certain sequence.
Please follow the steps in this order.
Remove back panel:
- To remove the back panel, first remove the 5 screws,
see picture for positions.
- Slightly lift the back panel upwards.
- The back panel becomes loose.
- After the back panel has been removed, the way is free to
remove the other panels as well.
Remove left or right panel:
- To remove the left/right panel, slightly move the side panel
±1 cm backwards and then remove the panel sideward.
Remove topcover + Control panel:
- Open bean lid, remove cap from the grinder adjustment
knob and remove the screw at the inside of the Grinder
Coffee coarseness adjustment knob.
- Mark carefully the position of the knob, before removing it.
(to ensure the right position when re-assembling)
- Remove the left upper screw seen from the back and remove
the screw in the upper corner of the right side, see picture
for the positions.
Screw upper
left backside
Screw upper
corner right panel
DISASSEMBLY- AND RE-ASSEMBLY ADVISE
!

HD5720/30
3-23
All the display messages that are described in this service manual are in English
language. If you want to change the language to English, proceed as follows.
1. Switch appliance on.
2. Press the MENU button.
3. Navigate with the or until Display message SET LANGUAGE? appear.
4. Press the OK button to select this routine.
5. Navigate with the or Display message ENGLISH appears.
6. Press the OK button 3 seconds to finalize the selection.
REPAIR INSTRUCTIONS
- Water/mechanical circuit
!
Water Flowmeter
Water Pump
Coffee Heating element
Brewing unit
Temperature
sensor
Discharge
Solenoid valve Hot Water /
Steam Tap
Water Tank
Steam Heating element
Steam
thermostat

HD5720/30
4-23
- Electrical circuit
REPAIR INSTRUCTIONS
Control
Board
Hall
sensor
Motor
Filter
Board
Reed
sensor
J1
J6J7
J3b
F12
F14
F15
J5
J2
1
J3a
Temperature
sensor
M2
Brewing
unit
down pos.
M1
Brewing
unit
up pos.
M5
Ta p
Coffee
Heating
element
Fuse
Fuse
Grinder
Motor
M3
Coffee
Waste bin
M4
Service
door
Mains
Water flow
meter
F10
F9
F8
F7
F13
F6
F5
F0
L
N
F1 F2 F3 F4
MSteam
Heating
element
Steam
TCO
Steam
thermostat
Discharge
electrovalve
Pump
Pump
Thermal
protector
M
Brewing unit
Group
motor
+
−
M
Red
Brown
Brown
Brown
Brown
Brown
Brown
Blue
Yellow/Green
Red
Red
Red
Black
Blue
Red
Red
Blue White
White White
Black
Black
Green
Green
Blue
Black
Blue
White
Blue
Grey
Black
Grey
Grey
Grey

HD5720/30
5-23
REPAIR INSTRUCTIONS
Working principle of the appliance
To understand the appliance better, hereby a short technical description of the working principle.
When the appliance has been plugged on the mains, the appliance starts with a self diagnose.
First items that will be checked are:
- Temperature sensor(s), state of micro switches.
Second:
- If no malfunction detected the Brewing unit will be moved downwards and after actuating the micro switch
brewing_unit_down_position M2, the brewing unit will be brought to the mid position (in this position it is possible to remove
the Brewing unit for cleaning purposes).
- During this movement the Hall sensor will count the needed cycles to go to the right position.
- After this has been accomplished the appliance will shut it selves off.
If there is a problem detected in above actions the Display will show a “GENERIC ALARM” message.
Note:
If the appliance is still in factory mode, the appliance will not shut it selves off.
First the available languages will be displayed and after the selection of the language the appliance starts the water fill routine.
Follow the steps indicated in the displayed after the process the appliance will shut it selves off.
Switching the appliance on:
When the appliance has been switched on the brewing unit will first be brought to the Coffee filling position.
Also the Coffee heater will be powered and heats up. (see also message in the display) (heating up….)
When the right temperature (measured by the NTC) has been reached, the Brewing unit will be brought to the brewing (top)
position until the brewing_unit_up_position M1 micro switch is activated.
Then water will be pumped through the brewing unit (see also message in the display) to clean the Coffee system (Brewing unit &
brewing head).
After this routine the Brewing unit will be sent to the down position and by a mechanical mechanism the Coffee grounds will be
wiped off.
The Brewing unit will be sent to the Coffee filling position again and the appliance will show a message on the display that the
machine is READY to USE.
Brewing cycle Coffee:
When the user selects one of the Coffee buttons (small- , medium- or large cup of Coffee) depending on status of the appliance the
Brewing unit will be sent downwards first and then go to the grinder fill position otherwise the first action will be that the beans will
be grinded into Coffee powder. The Coffee powder falls in the Brewing unit.
When the grinder stops grinding, the Brewing unit will be moved up to the brewing position.
The pump starts to pump a small amount of water into the brewing unit (pre-brewing), the Coffee bed will slightly shrink and
therefore the Brewing unit will be sent up to the brewing position again. (few millimetres)
After 1 – 2 seconds the pump continues to pump the water through the brewing unit and Coffee will leave the Brewing unit via the
Coffee spout into the cup.
When the right quantity of water has been reached (measured by the flow counter), the pump stops.
The Brewing unit will be sent to the down position.
In the down position the Coffee residue will be wiped off. The coffee will fall in the removable waste bin container.
After this the Brewing unit will be sent to the Coffee fill position again.
The Coffee brewing cycle has been performed.

HD5720/30
6-23
Service testroutines
This appliance has been equipped with special “service” routines to be able to check several functions of the appliance.
COUNTING PROCEDURE
With the counting procedure can be checked how (intense) the machine has been used by the consumer.
Items that are monitored:
Number of Coffee made, liters of water used, number of descaling procedures performed, number of cleaning/washing cycles
performed.
MENU OK
OFF
ON
Entering the counting menu
1. Disconnect the appliance from mains.
2. Press simultaneously “MENU” and button.
3. Connect the appliance to mains.
4. If above steps succeeded the display will show the following message
“TOT. COFFEE XXX”
”TOT. WATER XXX”
* where XXX is number of cups or Liters
5. Press button to step to the next display message
”DESCALING XXX”
”WASHING XXX”
* where XXX is number of cycles performed
6. Press button to step to the next display message
”SW RELEASE POW 15”
”SW RELEASE DIS 15”
* where POW 15 stands for power PCB software version release 1.5
* where DIS 15 stands for display PCB software version release 1.5
7. Press button, step 4 will be repeated.
To leave the service/test mode unplug the appliance from the mains.
REPAIR INSTRUCTIONS

HD5720/30
7-23
For repair solutions it is good to know if the descale procedures are performed in line with the coffee/cappuccinos brewed.
In below table you can find the values depending on the water hardness setting when the appliance will inform the consumer that
the appliance has to be descaled!
Water hardness
setting
Litres water after which the decalcifying
routine must be performed (L)
1 250
2 150
3 80
4 45
Check the installed Water hardness setting.
MENU OK
OFF
ON
Press the “MENU” button and walk through the menu items by means of the or buttons until
WATERHARDNESS X is displayed.
The number X represents the Water hardness setting.
Calculate the number of liters displayed in combination with the installed hardness setting in the table.
Example 1: Example 2: Example 3:
• Display shows 120 • Display shows 700 L • Display shows 1000 L
• Hardness setting 4 • Hardness setting 3 • Hardness setting 1
• Performed cycles decalcifying 3. • Performed cycles decalcifying 3. • Performed cycles decalcifying 3.
Calculation: Calculation: Calculation:
120/45 = 2.66 round down to => 2. 700/80 = 8.75 round down to => 8 1000/250 = 4
2 – 3 = -1 < 3 8 – 3 = 5 > 3 4 – 3 = 1 < 3
Descaled routines performed ok! Descaled routines performed Not OK! Descaled routines performed ok!
If the number of decalcifying routines performed deviates more than 3 times of the formula outcome the machine has not been
properly decalcified.
Conclusion:
The outcome of the formulas must be more or less equal to the number of decalcifying routines carried out by the consumer.
Example1 and Example3 are in line with the recommanded number of descal routines performed as requested by the appliance.
Example2 there it is clear that the appliance has not been descaled according the instructions given by the appliance.
The outcome of the formula deviates more than 3 times of the requested number of descaling of the appliance.
REPAIR INSTRUCTIONS

HD5720/30
8-23
PUTTING THE APPLIANCE INTO SERVICE/TEST MODE
MENU OK
OFF
ON
1. Disconnect the appliance from mains.
2. Press simultaneously and Coffee buttons.
3. Connect the appliance to mains.
4. If above steps succeeded the display will show the following message “LOAD TEST MODE”
Using the functions in the Service/test mode.
When the Service/test mode is entered, the following functions can be carried out / checked.
Function selection Action to perform Display message Result of the action
1. Operate Brewing
Heater
Push the MENU
button
HEATER ON Close steam knob!!! **
The Brewing heater will be powered, check
power consumption (±1240 W). *
2. Operate Pump Push the button PUMP ON If water container is filled, placed and steam
knob is closed ** the pump will be powered
(±40 W).
3. Operate the grinder Push the OK button GRINDER ON Close steam knob!!! **
Grinder will grind “Beans”.
4. Operate Brewing unit
upwards (motor lift)
Push the On/OFF
button
MOTOR UP
&
LIMIT SWITCH
UP
If this function will be performed always
be sure the Brewing unit has been installed,
service door is closed & Coffee ground
container is in place.
If the brewing unit_up_position M1
has been activated by the Brewing unit
the Display will show message LIMIT
SWITCH UP.
5. Operate Brewing unit
down (motor lift) Push the button MOTOR DOWN
&
LIMIT SWITCH
DOWN
If this function will be performed always
be sure the Brewing unit has been installed,
service door is closed & Coffee ground
container is in place.
If the brewing unit_down_position M2
has been activated by the Brewing unit
the Display will show message LIMIT
SWITCH DOWN.
6. Operate discharge valve
(EV1) Push the button EV1 ON Close steam knob!!! ** The 3way discharge valve will be powered.
7. Operate steam Heater Push the button VAPORIZER ON You will have to turn the steam knob
fully open, before the steam heater will be
powered! (“message open knob” appears)
check power consumption (±1 kW). *
REPAIR INSTRUCTIONS

HD5720/30
9-23
* When powering the Brewing heater in the system via the service test mode be warned that you not power the heater
too long, the software is not protecting the heater in this state!!
** When the Steam knob is (fully) open the Brewing heater, Valve, Pump and Grinder will not operate, close in those
steps the steam knob!!!
To leave the service/test mode unplug the appliance from the mains.
PUTTING THE APPLIANCE INTO DISPLAY TEST MODE *
(Factory Virgin mode)
MENU OK
OFF
ON
1. Disconnect the appliance from mains.
2. Press simultaneously and Coffee buttons.
3. Connect the appliance to mains.
4. If above steps succeeded the display will show the following message “DISPLAY TEST MODE”
In the display test mode it is possible to check if the menu buttons are recognized by the software.
For instance pressing the MENU button the display will show Button 1, if you press the button, display will show
Button 2 pressed etc.!
If you turn the steam knob fully open the message “KNOB IS OPEN” appears on the display.
In this manner it is possible to check if the buttons are recognized by the software.
To leave the service/test mode unplug the appliance from the mains or wait 45 seconds without pressing any button.
When powered again the appliance must be fully installed again!
REPAIR INSTRUCTIONS
!
!

HD5720/30
10-23
Temperature measurement.
COFFEE TEMPERATURE MEASUREMENT PROCEDURE
MENU OK
OFF
ON
1. Switch appliance on.
2. Make sure appliance factory default settings are stored.
3. Place a plastic cup under the coffee spout.
4. Set grinder setting on position 7.
5. Fill water tank and bean compartment.
6. Press the button.
7. During the cup is filled with Coffee measure the temperature.
8. Repeat step 6 – 7 once and note the highest measured temperature.
9. For validation see table below.
WATER TEMPERATURE MEASUREMENT PROCEDURE
1. Switch appliance on.
2. Make sure appliance factory default settings are stored.
3. Place a plastic cup under the steam nozzle.
4. Fill the water tank with water.
5. Press the button and turn the steam knob open.
6. During the cup is filled with water measure the temperature.
7. Repeat step 5 – 6 once and note the highest measured temperature.
8. For validation see table below.
Beverage Function Temperature spec.
Coffee temperature (°C) Long Coffee ≥ 75°C
Hot water Water ≥ 70°C
REPAIR INSTRUCTIONS
= changed