Philips HB579-A Service Manual
Service
Information
!
Service
Information
!
DISASSEMBLY
Canopy
Use an appropriate knife to carefully remove the
two decorative caps that cover the plastic rivets
(7) from the end covers of the lamp housing (35 +
40) and then lever the rivets out of the lamp
housing with the knife.
Now all the other parts of the lamp housing of the
canopy are accessible and can be disassembled.
Before the HP 400 lamps can be taken out, the
reflector (55) and the filter unit (56) have to be
loosened and removed.
To disassemble the two upper fans (23), first
remove the two ballasts and then lift the fans with
the fan holders out of the housing so that the
fixing screws can be loosened.
Use an appropriate
screwdriver to
carefully remove
the 5 screw covers
(34) and to loosen
the screws (36).
Now the end
covers can be
removed from the
lamp housing.
Unscrew the body cooling fan on the left side of
the canopy and take it out.
Remove the screws.
Pull the ornamental/retaining strips (3) of the
acrylic sheet (45)
up and snap them
out.
Lift the acrylic sheet from the appliance together
with a second person.
The TL’s (41 + 42), the starter (19) and the safety
switch of the lamp filter (57) are now accessible.
To remove the cover of the lamp housing (38), first
remove the decorative caps of the four plastic
rivets (37) with a suitable knife.
Be careful: prevent scratches on the cover!
Then pull the cover of the lamp housing out of the
grooves of the housing parts (39 + 43).
Lift the cover off the housing parts together with a
second person and place it on a soft surface
behind the appliance in such a way that the connecting cable (44) is not subjected to a too high
mechanical load.
Mark the position of the filter holders before
disassembly to make sure that they can be
assembled in exactly the same position when
reassembling the lamp housing, which is
necessary to ensure that the rivets of the cover of
the lamp housing (28) can be reinserted without a
problem.
To disassemble switches SK 1-4 (52, 53, 54), the
housing part (43) must be pushed inwards and
downwards and kept apart with a suitable object.
The housing part (43) is highly flexible.
Appliances from
the first series
have another rivet
in their housing
part (43) that must
be removed before
the housing can be
pushed down.
This rivet must not
be replaced.
To disassemble the gas pressure springs (50), fold
the canopy up and have a second person lock it in
this position.
Push housing part (43) inwards and downwards
and keep it apart with a suitable object.
Remove the spring retainer cover (51) with a
suitable screwdriver and then loosen the retaining
nut.
The gas pressure spring can now be removed
from the appliance.
Always use a new spring retainer cover (51) when
reassembling the appliance!
To disassemble the body cooling fans (61), take
the two housing halves (60 + 61) apart after
loosening four screws.
The fans that have already been unscrewed can
now be disassembled further.
Couch
Use an appropriate knife to carefully remove the
two decorative caps that cover the plastic rivets
(7) from the end covers of the lamp housing (6 +
13). Then lever the rivets out of the lamp housing
with the knife.
Use an appropriate screwdriver to carefully remove the 4 screw covers (34) and to loosen the
screws (36).
Now the end covers can be removed from the
lamp housing (6 + 13).
Pull the ornamental/retaining strips (3) of the acrylic sheet (9) up and snap them out.
Lift the acrylic
sheet off the couch
to gain access to
the TL’s (2), the
starter (19) and the
PCB (5).
To replace the
remote control
(30), unsolder connecting cable (29)
from the remote
control PCB.
To disassemble
the cover of the
lamp housing (15),
pull the connecting
cable (44) of the
canopy out of the
socket in the
couch.
Loosen the screws located in the cover of the
lamp housing next to the studs (69).
Pull the cover out of the grooves of the housing
part (14) and lift it together with a second person
off the rest of the housing and put it on a soft
surface.
Now all the other parts of the lamp housing of the
couch are accessible and can be disassembled.
ASSEMBLY
Lift the canopy off
the couch together
with a second
person.
Place the canopy
on a soft surface.
Canopy
When assembling the acrylic sheet (45), make
sure the ornamental/retaining strips (3) have been
snapped in properly.
Always use a new spring retainer (51) when
reassembling the gas pressure springs (50)!
When assembling the housing part (43), make
sure the housing part has been properly snapped
in behind the metal strip.
Couch
When assembling the acrylic sheet (9), make sure
the ornamental/retaining strips (3) have been
snapped in properly.
When assembling the cover of the lamp housing
(15), please make sure that the small housing
cover (10) permitting entry of the mains cable,
remote control cable and other connectors laps
properly over the cover of the housing.
Then lift the couch
off its frame
together with a
second person and
place the couch on
a soft surface with
the lamps pointing
downwards.
SERVICE TIPS
• If a fuse blows when you switch on the
appliance, this is usually caused by a fuse that
acts too quickly.
In such a case, use of a slow 16A safety fuse is
recommended on account of the high starting
current.
• The fuse may also be activated as a result of a
defective NTC resistor, a defective capacitor, a
defective ballast or an overloaded circuit.
• If one or more TL’s have broken down, you can
track down the failure cause by exchanging
parts (ballasts, starters, lamps).
If these parts are OK, the wiring must be
checked, especially the connections to the lamp
holders.
• An unusually early blackening of the end of the
TL’s points to a wiring fault or a defective starter.
If you touch the lamp surface by accident, clean
it with pure alcohol.
• New HP400 lamps may show colour
differences.
This is not a defect, but a characteristic pheno
menon of lamps of this type.
The discolourations disappear after a short
period of use.
• The plug-in connections of the wires can be
detached by means of a paper clip.
• Thermal switch (46) switches the HP 400 lamp
off at a temperature of approx. 75C.
After the lamp has cooled down (i.e. after
approx. 15 minutes), the HP 400 lamp will
automatically come on again.
• If the thermal switch turns the HP 400 lamp off
repeatedly, check if the rpm of the fan isn’t too
low.
Put some thin oil on the bearings.
• When the couch cannot be switched on, the
relay on the PCB may be defective.
Other possible causes are a defective inlet or a
defective connecting cable.
• When exchanging the HP 400 lamp, make sure
you do not touch the new lamp with your bare
hands, as finger prints could burn in and reduce
the lamp’s performance.
• If the glass pane with metal frame (56) have
been disassembled, the HP 400 lamp cannot be
started, as in that case microswitch (57) will be
open.
• After repair, always check whether the glass
pane with metal frame has been properly
mounted.
• Always use protecting goggles when looking in
the direction of burning lamps.
• The acrylic sheets can be cleaned with a moist
cloth and some washing-up liquid.
Avoid the use of alcohol, alcohol-based
cleaners, petrol, acetone or abrasives!
These substances can cause irreparable
damage to the sheets.
• Disposal of used-up or broken lamps
Used-up or broken lamps are chemical
waste and must be disposed of in the
appropriate manner.
IRRADIANCE
The measuring data indicated below were
established with help of an UVX 36 meter and
may only be checked with this equipment, since
the values measured are relative values.
The measurements must be taken after approx.
5 minutes in the centre of the irradiation field and
at the distance indicated.
The following aspects must be checked or the
following preliminary measurements must be
taken:
• Mains voltage: 230V
• Room temperature approx.: 22-28C
• Check the fans for failure-free operation as
optimal irradiation is only guaranteed at the
correct operating temperatures.
• Clean the reflectors, the lamps, the acrylic
sheets and the glass pane.
UVX 36 meter distance in cm mW/cm
With regard to the minimum irradiation indicated
below, you should bear in mind that this is not an
absolute value at which the lamps must be
replaced.
Depending on the skin type, the tanning session
may also be extended so that the lamps can be
used a little longer.
output in output in
NEW MIN
(approx) (approx)
2
mW/cm2
Couch 2.5 cm from acrylic sheet couch 11.2 6.7
Canopy 30 cm from acrylic sheet couch 10.0 6.0
Canopy beneath the facial tanner 30 cm from acrylic sheet couch 6.3 3.8
Note: Switch SK1/SK2 of HP lamp (facial tanner) in position 2.
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