Philips Perfect Draft HD3610/50 - Detailed Service Tests; Temperature and Pressure Tests; Fan and Peltier Tests

HD3610/50
5-12
REPAIR INSTRUCTIONS
Stepmode
(Press & release
KEG switch)
Test Stimulus Response Remark
2 Temperature test
Disconnect NTC (J6)
from the PCB.
Apply to (J6) below
resistance values
NTC simulated value
1. 1 kΩ (1%)
2. 10 kΩ (1%)
3. 51 kΩ (1%)
4. out of range
LED lights up:
1. Red
2. Yellow
3. Green
4. All LED’s OFF
Replace NTC sensor by dummy
sensor.
3 Pressure measurement
Disconnect Pressure
sensor (J14) Connect
external dummy.
Pressure simulated
value (mV)
1. 0 - 2mV
2. 4 - 6mV
3. 8 - 10mV
4. out of range
LED lights up:
1. Red
2. Yellow
3. Green
4. All LED’s OFF
* Replace pressure sensor and apply
dummy.
* Depending on the possibilities
either dummy or pressure can be
applied for testing.
Apply to the air inlet
of the sensor or air
coupling the following
pressures.
Pressure simulated
value (mBar)
1. 0 - 300
2. 600 - 900
3. 1200 - 1500
4. out of range
LED lights up:
1. Red
2. Yellow
3. Green
4. All LED’s OFF
* Apply calibrated air pressure to
the Pressure sensor or by the Air
coupling hole.
* Depending on the possibilities
either voltage or pressure can be
applied for testing.
4 Fan motor low level 1. Fan starts running.
2. LED’s Off.
Keep KEG switch pressed!!
Fan runs on (80%) level
Voltage across fan:
~7 - 8.5 Vdc / ~0.25 Vrms
5 Fan motor high level 1. Fan starts running.
2. LED’s Off.
Keep KEG switch pressed!!
Fan runs on (100%) high level
Voltage across fan:
~10.5 Vdc / ~0 Vrms
6 Peltier medium 1. Peltier starts cooling.
2. LED’s Off.
Peltier runs on medium level (~50%)
Voltage across Peltier:
~6.0 Vdc / ~4.0 Vrms
Current through Peltier:
~4 A rms
8 Peltier high 1. Peltier starts cooling.
2. LED’s Off.
Peltier runs on high level (100%)
Voltage across Peltier:
~10.5 Vdc / ~0.0 V rms
Current through Peltier:
>4.7A rms (lower=defect Peltier)
9 Pump test 1. Pump starts.
2. LED’s Off.
J2
19k
5k
J2
19k
5k
1
J14
4k7
4k7
1k
4k7
4k7
1
J14
4k7
4k7
1k
4k7
4k7