Tag Archive : macbook repair hamilton new zealand

Macbook Air A1466 turns on but no display backlight repair

Macbook Air A1466 turns on but no display backlight repair

Macbook Air A1466 turns on but no display backlight repair hamilton new zealand

Macbook turns on, you can hear a sound but no display. This is a common issue in Macbook from year 2013 to 2017.  What’s wrong with it? It’s starting up but no display.

When you hardly see apple logo when you start your macbook then most problably it is backlight issue. Plug in your charger, you can see adapter sense is working which is green and you can hear a sound & fan is spinning that means there is nothing wrong with SMC chip but no display which means it’s a backlight problem.

Watch our full youtube video on macbook A1466 backlight repair here

 

How we will diagnose the problem?

Firstly, we will check the backlight fuse. Let’s put the multi-meter in continuity mode and check the backlight fuse. If backlight fuse is fine then check the other capacitors near the backlight. If the capacitors near the backlight is all good. Then, check the lcd connectors. If you see a red trigger i.e. macbook is liquid damage.

You can watch some more information on same kind of repair here 

Find our another blog on macbook repair here

Macbook a1466 turns on but no display backlight repair at applefix hamilton new zealand

After that we have to check the lines. Firstly, we would like to check the J8300 lcd fcp connector, check the two backlight terminals which are SOSW_LCDBKLT. Before that we have to turn on macbook and check with multi-meter and we are getting 1.9V which is way lower than what we should get on backlight. Backlight won’t turn on 1.9V. We are not getting enough power that’s why macbook Air A1466 turns on but no display backlight repair

Backlight is directly connected to (U7701). We can clearly see the board is moisture damage.

We can clearly see the moisture damage and burnt part near the backlight ic. So next thing what we should do is to heat the backlight ic and remove it and put the new backlight ic.

Macbook logicboard repair specialist in hamilton New Zealand

These types of repairs involves micro soldering skills. Once backlight ic is taken out. We have to clean the pads using lot of flux with flat tip soldering iron. Cleaning of the pads is important before putting the new backlight ic. Set the temperature and put the new backlight ic. After replacing the ic, we got the display on macbook A1466.

If you are interesting in learning these sorts of repair or if you have macbook which have no display you can contact us.

Get your macbook fixed by professionals at applefix call now 078394188 for free quote 125 ward street hamilton

macbook air keyboard trackpad not working u2600 ic replacement

MacBook air keyboard trackpad not working u2600 ic replacement

Macbook air keyboard trackpad not working u2600 ic replacement New Zealand

Keyboard & trackpad suddenly stopped working your local IT replaced keyboard & trackpad but still it is not working. MacBook air keyboard trackpad not working u2600 ic replacement in New Zealand. MacBook air keyboard and trackpad are pretty rigid parts. They stopped working usually if you have liquid spill on it. Replacing keyboard and trackpad is quite easy repair and most of the computer repair shop can do it.

But when it comes to MacBook air keyboard and trackpad integrated circuit IC repair it becomes very skilled repair and most of computer repair shop send it away to more skilled repair shop like AppleFix hamilton at 125 ward street Hamilton New Zealand.

macbook air keyboard trackpad not working u2600 ic replacement

U2600 is not the only ic which controls the keyboard and trackpad but most common one to fails. For technicians reading this article do not just takeout this ic if keyboard and trackpad not working even after replacing with new one. There is a procedure to check the ic. See below picture the capacitors which are in connected to u2600 ic.

macbook air keyboard trackpad not working u2600 ic replacement

macbook air keyboard trackpad not working u2600 ic replacement

macbook air keyboard trackpad not working u2600 ic replacement

These all capacitors in red square are in on 3.3 volt line check these caps and resistors. read through digram or board view. Check with multimeter if you all the information you will find on the schematic diagram. if you find it hard how to work around you are suggested to take one of our logic board repair course.

On this particular MacBook logic board u2600 failed. We usually keep donor boards where we can remove the ic and solder on which we repairing. Removing ic also needed to be learnt or you might endup pulling the pads.

macbook air keyboard trackpad not working u2600 ic replacement

macbook air keyboard trackpad not working u2600 ic replacement

Once ic is removed use flux and solder braid to remove any left over solder and clean it with alcohol.

macbook air keyboard trackpad not working u2600 ic replacement

macbook air keyboard trackpad not working u2600 ic replacement

There are different types of IC read a good article on integrated circuit here. This type of ic we recomend to do underneath preheating to have good strong joints.

After soldering new ic you have to perform same tests again. Check the volts lines. Which you should have right output. MacBook keyboard trackpad not working u2600 ic replacement is done at applefix in store repair lab.

If you have similar any hardware or software faults on your MacBook pro or MacBook air bring it to applefix. Find our location here. if you live out of Hamilton New Zealand mail your device. Or call +6478394188.

macbook air keyboard trackpad not working u2600 ic replacement

macbook air keyboard trackpad not working u2600 ic replacement


0

Your Cart