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Mini hi-fi not working!

Feeling bored and decide to listen to your music and just relax but your hi-fi has other plans in store for you!

Please note this is just a summary some steps are excluded.

✓safely unplug your hifi and take it to clean table or work Bench.

✓ remove all the cover screws and put them in a container.

✓ remove the cover and put it on a safe place.

This is what the hifi looks like inside.

✓ check for physical damage if no damage take the green board out.

The green board looks like this.if your hifi works but no sound then the four ICS are blown you can see how small they are.you need to call a technician for that part.

✓ now take out the main power supply board and start to measure.please test the following if it’s there’s no fault please take your hifi to the nearest technician please.

* check fuse

* check bridge rectifier

* check diodes

* check capacitors

* check transistors

* check the resistors

You can close the hifi and get proper assistance from qualified technicians.so far you are doing fine admit you are learning everytime we post how to fix gadgets.

Check the transformer or eveñ the wire.i thank you.

How to properly repair the LED TV backlights.

You switch your television on hoping to watch news or your favourite soapie but all you see is dark screen with voices.

No need to worry because that can and will be fixed in a couple of hours,same day at low cost!

Tools

✓ Starpoint screwdriver (medium)

✓ cutters

✓ screw containers

✓ small Starpoint screwdriver

✓ backlights tester (it could be 15 VDC power supply)

✓ soldering iron 30 watts max

✓ flux

✓ wire

We first have to put the TV flat on the screen on a flat clean soft surface.we then have to take our medium Starpoint screwdriver and start to unscrew and take out the screws holding the back cover.

✓ Now take off the TV back cover and put it on a clear safe place.

✓ now you will see two TV board which are the power board and the screen board well technically it is converter board.

✓ carefully unplug those two cables holding the screen and  then take your Starpoint screwdriver and take out two screws  holding the board.Neatly put it on a safe place.

✓ again very carefully take out the screen board and flip the TV facing up towards you and take small flat screwdriver and unclip the covers gently is the right word for this, until you get to the backlights strips.They may look like this:

✓ take your backlight tester and start to test each one individually before checking them in pairs.on my tv nine leds were blown but I did not bridge them I took the old blown one and put in the new brand new if i may add and after all new ones were put in and i started to test again.you better measure twice and cut once.now that all is good and good is all the backlights look like this…

Well done we are done.Now you should put back everything back without my help.i thank you @greatvince

LG DVD not coming on.

This is a summary of LG DVD not switching on.detailed information about the DVD is yet to be announced.

STEP 1

✓unplug DVD from wall and take out seven screws holding the cover
✓remove the cover and put it on a safe place.put the screws in a safe container.

✓take out the power supply circuit board it is the one with transformer on it.

✓first check for any physical damage.Now you can check the fuse and then the bridge rectifiers or the four primary diodes right after the AC wire.

✓look also for dry joints underneath the power supply board.

My suggestion is to take the board as a sample and buy a new one believe me that board is the reason your DVD won’t switch on.

It is hardly that this board ever gets blown out in my case the big chip if was blown so I ended up buying two boards don’t make the same mistake or rather take your DVD to a qualified technician to help you out.