Having a LCD Backlight problem iMac 21.5" late 2013 820-3302-A
Hi techs
One of my costumers brought this iMac for repair, it was working fine while watching NetFlix and then, the screen went dark but voice still working.
I put the light on the LCD and I was able to see the apps, I plugged it to TV screen and it works just fine. Any help with that please?
Is there any fuse or a component for the backlight I need to check ( similar to the filter of iPad mayber ) ???
I've tested the outputs at the logic board feeding the flex cable which goes to the leds and found there's 0 volt on each!!!
Update (02/24/2017)
Ahhhh!
Gotcha
It's FB9708
Many thanks for all
crwdns2934109:0crwdne2934109:0
crwdns2944067:07crwdne2944067:0
@iphix what is the 820-XXXX number on your Logic board?
crwdns2934271:0crwdnd2934271:0 oldturkey03 crwdne2934271:0
oldturkey03
820-3302-A
Thank you
crwdns2934271:0crwdnd2934271:0 Justin crwdne2934271:0
Hi dear,
Do you tell us what do you have done? Thanks.
crwdns2934271:0crwdnd2934271:0 Marc crwdne2934271:0
Hi there
I have at problem that might be in the same kategory, the screen at my imac 2013 is flickering random, shutting of picture- turning it on after 1/2 second or so.
Turning down brightness(light) is reducing the problem dramaticly.
Sometimes, the screen stay of, an comes first on again when the maskine reboots og goes into st-by.
External screen has no problems, neigher when main screen is constant off.
Anyone have an idea ?
Greetings /Jesper
crwdns2934271:0crwdnd2934271:0 Jesper Godsk Nielsen crwdne2934271:0
I`d test it with another new LCD this issue must be from LCD not from backlight circuit keep me up to date with your results please.
thank you
crwdns2934271:0crwdnd2934271:0 Justin crwdne2934271:0
crwdns2934275:02crwdne2934275:0