Toubleshooting for web

Confused? What do you do first?

Follow troubleshooting steps to do the job right!

Troubleshooting Steps

1. Verify

2. Analyze

3. Isolate

4. Repair

5. Ops check

Step 1: VERIFY

IS THERE ACTUALLY A PROBLEM ?

The problem might be simpler or more complicated than it looks.

Hey, it won’t work!

and trying harder just makes it worse!

A simple fix?

Is the power switch turned off?

Is it just unplugged?

Is it disconnected at the power source?

Is the circuit breaker off?

See the tripped one?

Step 1: VERIFY• Is there really a problem?

• Is the power switch turned off?

• Is it just unplugged?

• Has it been disconnected?• Is it getting power?

• Do you know how it is supposed to work?

Step 2: ANALYZE

• THINK !THINK !• What should be happening that isn’t or

what is happening that shouldn’t?• What could be the cause of the problem?• Which part is most likely the cause of the

trouble?• Are there other things that might have an

effect?• Is it mechanical or electrical or electronic?

Step 2: ANALYZE• What is the most logical cause of the

problem?

• Suspect the simplest thing first.

• Work toward more complicated things.

Step 2: ANALYZE• Do you know the circuit?

• How many things can go wrong?

• Identify components most likely to fail.

Step 3: ISOLATE

• Look for damage (broken wires, cracked foil traces, burned components, cold solder joints).

• Check each part, starting with the simplest.• Check one thing at a time• Check components with a good meter.• Trace continuity with an Ohm meter.• Remember one handed meter readings if

circuits are powered.

Step 4: Repair

Repair or Replace?

Is it more cost effective to replace a part or machine or to repair?

Step 5 Ops Check• Does it work?

• Double check to make sure it is operational again.

• Reassemble it all back together again after you ops check.

• Ops check again after reassembly!

• Your job isn’t done unless you make sure it works!

Review

1. VERIFY – is it broken?

2. ANALYZE – how does it work?

3. ISOLATE – which part is broken?

4. REPAIR – fix or replace

5. OPS CHECK – test drive it

Follow the steps for success.

Recite the Five steps !

• Makes troubleshooting easier

• Set up a bench with all working parts.

• Swap out working parts with parts that need troubleshooting and repair.

• Swap out and test one part at a time.

The Test Bench

stereotuner

TVspeakers

VCR

computer

printer

monitor

scannercamera

DVDbad ?

When you receive a part that is not working

• Label it with: – who owns it or brought it in– the date it was brought in or reported– the reported or suspected problem– who is responsible to troubleshoot and repair it

• Put it in the test bench queue.