OXYGEN
CONCENTRATOR WITH NO POWER REPAIRED
MODEL
NO. AMT-8D.
OXYGEN
CONCENTRATOR –is a
medical equipment that concentrates oxygen by using a gas supply to filter
nitrogen from surrounding ambient air. it is used for supplying oxygen to
individuals with breathing problem or related disorder, difficulties . The
following photo is how is being used to human being. This device is well known
as is playing a very supreme role in our life, it also controlled
electronically so whenever this circuit becomes faulty, the device system will
not function well and it can even go off completely. The following are the
faults u may experiencing when u are coming over to use this equipment.
FAULTS AND BEHIVIOURS OF A DEVICE WHEN ONE OF THESE OR BOTH BECOMES
ABNOMAL
Kindly I will not goes into
details to each faults indicated below but these are the problem u may meets on
any electricals and electronics equipments when you are using or dealling with
them
NO POWER
BREAKDOWN
WHEN IS UNDER FULL LOAD
DISPLAY FLICKELING
FAILING TO
GENERATES OXYGEN
DISPLAY ON BUT KEYS NOT RESPONDING
TROUBLE SHOOTING OR
FAULTS FINDING PROCESS
REPAIRED
OXYGEN CONCENTRATOR EQUIPMENT
NO POWER- AS I said this device was fixed due to power
failure, when it turned on there were no sign of life to this medical equipment
this is because no power were flowing to the system of this equipment . Power failure to any electronics equipment
might be cable, or short-circuit to any components along power supply board .eg.
Short-circuits of fuse, diodes, e caps, transistor or primary windings of a
transformer, but depending on engineer or designer topology. the first thing was to check power cold cable
and it was tested okay then I proceeded
to power board for further testing, NOTES.. Take all the precaution first when
you are dealing with power supply board at particular when you are correcting
the voltage, failure to which u will be electrocuted … very nasty shock.. With
my digital multimeter I managed to test each components on power board, guess
what? The filter coil and two ac capacitor was
damaged and they had a burnt mark both of them. Below are the faults components …
These are the
components which were replaced… NOTES I forgot to pick a photos of a new
components. After replacement of these components I started collecting voltage
to confirm if power supply is functioning well.
After repair, above are the collected ac
input voltage …..238.7 was okay. The next was to take dc supply because dc
voltage is used to power on display.
Now you can
check 12 volts dc supply was taken all seems to be intact meaning the power
board is now generating pulses well, there was an ic generating pulses.
Here are the 5volts dc supply which were taken from this
board. The 5volts dc supply will power
on the display so that when the display becomes on, then it will wait for instruction from keys,
when the key pressed will activates main processor and all the faction will be
allowed according to the instruction given and all system will fully works
perfectly. NOTES all these instruction given by main ic is one will determines
all clock pulses like timing, the temperature and how many
minutes or hours will machine generates oxygen.
Below two photos indicating the machine are in good
condition, as you can see everything works well, the display looks okay with no
issues.
Conclusion- the electronics repair works needs skills and
good tools for trouble shooting, also before starts trouble shooting study the
machine how works first so that you will not be wasting too much time for
faults identification….
Contact 0718814978
Below are
page book link… follow, like for more repair articles
https://www.facebook.com/Dick-Tech-Electronics-Repair-Center-1525939240750763
dicksonmuchoki@gmail.com or electronicsrepaircenter200@gmail.com
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