Troubleshooting
and Repair
Techniques
Prepared by: Joshua Brien C. Penuela
Lesson Objective
01
Identify the Troubleshooting
and Repair Techniques
02
Apply the Troubleshooting and
Repair Techniques
What is Troubleshooting ?
is a form of problem solving, often
applied to repair failed products or
processes on a machine or a system.
Troubleshooting is needed to identify
the symptoms. Determining the most
likely
cause
is
a
process
of
elimination—eliminating
potential
causes of a problem.
Finally,
troubleshooting
requires
confirmation
that
the
solution
restores the product or process to its
working state
COMPUTER REPAIR & SUPPORT
TROUBLESHOOTING & REPAIR TECHNIQUES
G E N R A L
TIPS TO KEEP IN
MIND
WRITE DOWN YOUR STEPS
Once you start troubleshooting,
you may want to write down each
step you take.
TROUBLESHOOTING & REPAIR TECHNIQUES
G E N R A L
TIPS TO KEEP IN
MIND
TAKE NOTES OF ERROR
MESSAGE
Be sure to write down as much
information as possible
TROUBLESHOOTING & REPAIR TECHNIQUES
G E N R A L
TIPS TO KEEP IN
MIND
ALWAYS CHECK THE CABLES
If you're having trouble with a specific
piece of computer hardware, such as
your monitor or keyboard, an easy first
step is to check all related cables to
make sure they're properly connected.
TROUBLESHOOTING & REPAIR TECHNIQUES
G E N R A L
TIPS TO KEEP IN
MIND
RESTART THE COMPUTER
When all else fails, restarting the computer is a good
thing to try.
PROCESS OF ELIMINATION
01
Is the act of considering and
rejecting each possible choice until
only one is left.
-
02
-
Then
eliminate ,To
identify the issue and
find
the
correct
solution
03
-
List of things that
cause the
problem/error
Test it one by one
P R O C E S S
O F
E L I M I N AT I O N
Scenario
Let's say you're trying to print out
invitations for a birthday party, but the
printer won't print. You have some
ideas about what could be causing
this, so you go through them one by
one to see if you can eliminate any
possible causes.
STEPS
01
- Next, you check to make sure the
printer's ink cartridge still has ink and
that there is paper loaded in the paper
tray. Things look good in both cases,
so you know the issue has nothing to
do with ink or paper.
- First, you check the printer to see that it's
turned on and plugged in to the surge
protector. It is, so that's not the issue
issue
02
COMPUTER REPAIR & SUPPORT
STEPS
03
You check the printer's USB cord and
find that it's not plugged in. You must
have unplugged it accidentally when
you plugged something else into the
computer earlier. Once you plug in the
USB cord, the printer starts working
again. It looks like this printer issue is
solved!
We make sure the printer and
computer
are
communicating
correctly. If you recently downloaded
an update to your operating
system, it might interfere with the
printer. But you know there haven't
been any recent updates and the
printer was working yesterday, so
you'll have to look elsewhere.
04
COMPUTER REPAIR & SUPPORT
Simple Solution
to Common PC
problems
!
Most of the time, problems can be fixed
using simple troubleshooting techniques,
like closing and reopening the program.
It's important to try these simple solutions
before Content
resorting
to more extreme
A - 40%
measures. If the problem still isn't fixed, you
Content B - 70%
can try other troubleshooting techniques.
Content C - 30%
Content D - 90%
COMPUTER REPAIR & SUPPORT
Problems & Solution
Power button will not start computer
!
•Solution 1: If your computer does not
start, begin by checking the power cord
to confirm that it is plugged securely into
the back of the computer case and the
power outlet.
•Solution 2: If it is plugged into an outlet,
make sure it is a working outlet. To
check your outlet, you can plug in
another electrical device, such as a
lamp.
Problems & Solution
Power button will not start computer
!
•Solution 3: If the computer is plugged in
to a surge protector, verify that it is
turned on. You may have to reset the
surge protector by turning it off and then
back on. You can also plug a lamp or
other device into the surge protector to
verify that it's working correctly.
•Solution 4: If you are using a laptop,
the battery may not be charged. Plug
the AC adapter into the wall, then try to
turn on the laptop. If it still doesn't start
up, you may need to wait a few minutes
Problems & Solution
PC crashes before loading the OS
•Solution 1:if your pc is using 2 rams
sticks then try taking out each one of
and start the pc this will help to find
culprit
•Solution 2:Check in the BIOS if boot
menu is properly configure. If its
properly configure then you might
have a bad Hard Drive and the
solution is to replace
Problem and Solution
BEEP CODE ERROR
Easy to
change colors.
Text Here
Easy to
change colors.
Text Here
Easy to
change colors.
Text Here
Easy to
change colors.
Text Here
Easy to
change colors.
Demonstration
BEEP CODE ERROR
Easy to
change colors.
You Power on your computer and its
is not continuing to boot-up and you
Text Here
Text Here
Text Here
Text Here
hear
this
BEEP
Sound
3short,
1 long
Easy to
Easy to
Easy to
Easy to
change colors.
change colors.
change colors.
change colors.
beep
Question:
HOW WILL YOU TROUBLESHOOT
THIS?
DRAG & DROP
Complete the table by filling in possible cause, diagnosis and possible solution to
different computer errors/problems below.
Computer
Problem/Error
PROBABLE CAUSE
DIAGNOSIS
SOLUTION
Screen is Blank
Keyboard Failure
Memory Module
Problem
Screen goes Blank
periodically
Monitor has no
power
Screen Saver is
Enable
Power connector maybe
loose or not plugged in
Remove and Re-insert the
RAM and Check if the
Computer Boots up
Check power connector of
the monitor and the system
Disable
saver
Screen
Replace Keyboard
Keyboard is
disconnected
Reconnect keyboard Check
keys again, if there is no
improvement replace keyboard
Loose RAM
RAM is not inserted in
the slot properly
DRAG & DROP
Complete the table by filling in possible cause, diagnosis and possible solution to
different computer errors/problems below.
Computer
Problem/Error
PROBABLE CAUSE
DIAGNOSIS
SOLUTION
Screen is Blank
Monitor has no
power
Power connector maybe
loose or not plugged in
Check power connector of
the monitor and the system
Keyboard is
disconnected
Reconnect keyboard Check
keys again, if there is no
improvement replace keyboard
Replace Keyboard
Keyboard Failure
Memory Module
Problem
Screen goes Blank
periodically
Loose RAM
RAM is not inserted in
the slot properly
Power connector maybe
loose or not plugged in
Screen Saver is
Enable
Remove and Re-insert the
RAM and Check if the
Computer Boots up
Disable
saver
Screen
GROUP ACTIVITY
Direction: You will give them an
actual computer problem. Then will
do an actual troubleshooting and
repair techniques to be able to solve
the issue or problem given to them.
After that the group will report the
what is the error encountered,
probable cause and the possible
solution
GENERALIZATION
What will you do if you noticed that there is
something wrong with your computer?
Why is it important to follow steps in
troubleshooting computer faulty system?
How will you apply the different
suggested solutions in different
computer errors/problems??
Thank You