I have a iMac G5 in which i can't get the 3rd light or video to post. The unit chimes up, I hear the superdrive engaging and the 1st and 2nd light come on without problems. I tried know working power supplies and no luck. I even tried a working LCD inverter and no luck. I did a visual inspection of the caps on the mobo and now look like there swelling or blown. IS there anything else I can do to check? thanks in advance.
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Re: imac G5 20" 3rd led not turning on?
Bad graphics BGA. You can have it re-balled. A few shops offer it.veritas odium parit -
Re: imac G5 20" 3rd led not turning on?
Wired, I just hooked up an extra screen lying around and it worked! I removed the tested screen and hooked it back up and the screen now works. The only thing I am concerned about is when turned on the screen flashed black twice and then shows the white apple logo. Sigh of a bad BGA?Comment
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Re: imac G5 20" 3rd led not turning on?
Ok. That sounds more like a bad cable or connector to the panel. Try not tightening the screws to far and see if it stays. Had to fix the cable connector to the mobo on a replacement panel a few months ago that did the same thing. Intermittent connection in the plug under all that tape and shield.veritas odium paritComment
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Hi guys, I need your help again.
I have this iMac from a customer that shut down during a storm along with all the other devices in the house. In particular, the router, connected via Ethernet to the iMac, caught fire.
When I removed the screen from the iMac to check the status of the LEDs, I noticed that none of them were lit. I had a perfectly compatible and working power supply, so I tried it right away, but the problem remained the same (no LEDs). With the thermal camera, I noticed only a slight warming (32 degrees) of the NCP1605BG chip on the power supply. The rest was completely... -
iMac turns on no drops no cracks, tried to DFU Restore the iMac, logo turns on great! however iMac turns itself off and then restarts to the (!) icon and won't post the restore. Tried thunderbolt 3 cable, tried regular USB C cable and nothing.
this is the message it gives me with the error
Unexpected device state 'DFU' expected 'RestoreOS' (Probably forced into DFU mode externally) [com.apple.MobileDevice.MobileRestore – 0xFAE (4014)].
Any thoughts what this could be? I will open it up and repair it but I am not 100% sure since this iMac doesn't... -
Customer came in for data recovery, came to find out data is soldered on to this iMac (learn something new everyday) this is a 2020 T2 iMac so I was surprised because the iMac Pro has a T2 chip and it isn’t soldered on. Anyways, the iMac boots to Apple logo and then restarts, before it turns off you hear a quarter fan spin then it repeats itself. I decided to do a DFU revive to restore any hardware firmware issues and it was successful in reviving the device however the issue persists in boot looping. It shows the Apple logo for like 40 seconds then turns off and fan spin rinse repeat. I...
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Hi,
we've got iMac Pro 2017 which having a problem with SSD, iMac come with 2 SSD's 1TB, it was having a problem with the SSD so we get the replacement, installed in and iMac is stuck in recovery mode, tried to restore it & revive, nothing worked - error 4010. After installing old drives now we're having the same problem that the device is in recovery mode. Previously after swap of the SSD iMac worked on the old SSD however after attempt of revive on the new SSD machine stuck in recovery mode, I can go to DFU but the same result with error 4010.
Any ideas what might've... -
Ciao a tutti! I was given an old late 2013 iMac that doesn't turn on. I have the .brd file and the schematics and I've done a little analysis on the boards. Starting from the PS it appears to have 11.6V instead of 12V and that is a little strange, isn't it? Measured test points for PP12V_G3H and gives me 11.6V as well.
The iMac have two different types of behaviour:
1) no button pressed when inserting AC cable; inserting AC cable turns LED #1 on, when pressing power button LED #1 turns off for half a second, then turn on again, LED #2 turns on for half a second and...
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