Is there a way to trick the board to see a screen temp sensor?

Question 1

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crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

MineZebra 55

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Ndz 24, 2023

commented Ndz 24, 2023 crwdns2933505:0crwdne2933505:0 MineZebra

Question 2

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3 beeps but is not ram

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Novation Hax 11

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Kho 8, 2021

commented Kho 8, 2021 crwdns2933505:0crwdne2933505:0 Novation Hax

Question 3

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Your computer was restarted because of a problem - Log Erros

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Bryan

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Kul 27, 2021

asked Kul 27, 2021 crwdns2933505:0crwdne2933505:0 Bryan

Question 4

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Power Supply pinout values

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

MARIO

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Sun 12, 2021

asked Sun 12, 2021 crwdns2933505:0crwdne2933505:0 MARIO

Question 5

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No Backlight & Image present - iMac (21.5-inch, Late 2012), 820-3302A

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Kristen Gismondi 92.8crwdns2936485:0crwdne2936485:0

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N'w 11, 2020

reopened N'w 11, 2020 crwdns2933505:0crwdne2933505:0 Kristen Gismondi

Question 6

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Won't boot when internal display is connected - Can it be the cable?

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

James Watkins-Harvey

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Huk 13, 2020

edited by author Huk 13, 2020 crwdns2933505:0crwdne2933505:0 James Watkins-Harvey

Question 7

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iMac 21.5 Late 2012 goes black randomly when the iMac is "warm"

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Massimo Oriano 57

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Ndz 23, 2020

edited by author Ndz 23, 2020 crwdns2933505:0crwdne2933505:0 Massimo Oriano

Question 8

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My Screen is flickering but external monitor works fine

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

julianacosta

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Ndz 16, 2020

asked Ndz 16, 2020 crwdns2933505:0crwdne2933505:0 julianacosta

Question 9

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Kernel_task 300% and fans on full

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Dan 490crwdns2936485:0crwdne2936485:0

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Maw 10, 2020

commented Maw 10, 2020 crwdns2933505:0crwdne2933505:0 Dan

Question 10

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Image glitching randomly after boot

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Robert G 917

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Yan 11, 2020

asked Yan 11, 2020 crwdns2933505:0crwdne2933505:0 Robert G

Question 11

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Weird graphics glitches even after restart

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Dan 490crwdns2936485:0crwdne2936485:0

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N'w 31, 2019

commented N'w 31, 2019 crwdns2933505:0crwdne2933505:0 Dan

Question 12

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Need help identifying this ferrite bead

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Dan 490crwdns2936485:0crwdne2936485:0

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Mud 23, 2017

crwdns2931431:0crwdne2931431:0 Mud 23, 2017 crwdns2933505:0crwdne2933505:0 Dan

Question 13

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Tried 3 PSU's still NOT turning on any diagnostic LED on logicbord

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

jbermudez27 140

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Mud 5, 2017

asked Mud 5, 2017 crwdns2933505:0crwdne2933505:0 jbermudez27

Question 14

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How to test Power Supply Voltage and Pinout

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

steharmon 61

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Sun 23, 2017

asked Sun 23, 2017 crwdns2933505:0crwdne2933505:0 steharmon

Question 15

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How can I test the Power Supply (voltage values)?

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Lesli KeepSimple 25

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N'w 4, 2016

commented N'w 4, 2016 crwdns2933505:0crwdne2933505:0 Lesli KeepSimple

Question 16

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Blue screen after changing HD out

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

mayer 688crwdns2936485:0crwdne2936485:0

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Mha 10, 2016

commented Mha 10, 2016 crwdns2933505:0crwdne2933505:0 mayer

Question 17

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How to remove Power Button Board?

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

Eric 37

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Dzi 12, 2016

asked Dzi 12, 2016 crwdns2933505:0crwdne2933505:0 Eric

Question 18

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Repair audio jack cable

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

fredorion

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Sun 18, 2016

asked Sun 18, 2016 crwdns2933505:0crwdne2933505:0 fredorion

Question 19

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Newly installed Hard drive unrecognizable in late 2012 iMac

crwdns2934197:0crwdne2934197:0 iMac Intel 21.5" EMC 2544 Late 2012 crwdns2933315:00crwdne2933315:0

mayer 688crwdns2936485:0crwdne2936485:0

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Kho 26, 2015

commented Kho 26, 2015 crwdns2933505:0crwdne2933505:0 mayer

crwdns2944620:0iMac Intel 21.5" EMC 2544 Late 2012crwdne2944620:0

iMac Intel 21.5" EMC 2544 Late 2012 crwdns2944632:0crwdne2944632:0