Hello everyone!
I have a broken Apple Cinema Display 23"(Aluminium) A1082. Sumptoms Black screen and no led blinking
And wow, I have a plan to repair it ))))
If somebody can help i will be happy
First off all Great thanks to all guys from the links below for many helpfull tips
MAC CINEMA HD Display 23 Inch by Bud Martin | Photobucket
https://www.ifixit.com/Answers/View...ing+apart+a+23"+HD+Cinema+display#answer16092
https://discussions.apple.com/thread/2086442?start=30&tstart=0
Apple 23" Cinema Display possible fix for 'short-long-short' error | pixelchimp.net
http://www.ehmac.ca/mac-iphone-ipad...isplay-23-pcb-q49c-info-about-transistor.html
http://www.ehmac.ca/mac-iphone-ipad...311-cinema-display-troubleshooting-parts.html
Apple Cinema display 23" ... detection problem - Badcaps Forums
But ... monitor doesn't work yet
Next I will describe what I did, do and will do:
1. I have a 24.5V from power adapter to mainboard input and disconnected center pin. Only +24.5V and Gnd connected.
2. I checked input from DVI(pin14) +5V. Red wire (J6) at mainboard.
3. I changed LM1117DT- 33 (VR3) w/out success Vin= 5.06V Vout=3.24V
4. I check Q1 transistor(H7XZ1). If I right understand it's P-Channel 20-V (D-S) MOSFET Si2367DS
Gate 11.1V Drain 24.5V Source 24.5V I dont know this is good or bad voltage cause I dont know how it should be
5. 2672(VR1) have only one pin powered Vin=24.5V
I attached picture with voltage at main board with some points I checked
Investigation to be continued ... join this
I have a broken Apple Cinema Display 23"(Aluminium) A1082. Sumptoms Black screen and no led blinking
And wow, I have a plan to repair it ))))
If somebody can help i will be happy
First off all Great thanks to all guys from the links below for many helpfull tips
MAC CINEMA HD Display 23 Inch by Bud Martin | Photobucket
https://www.ifixit.com/Answers/View...ing+apart+a+23"+HD+Cinema+display#answer16092
https://discussions.apple.com/thread/2086442?start=30&tstart=0
Apple 23" Cinema Display possible fix for 'short-long-short' error | pixelchimp.net
http://www.ehmac.ca/mac-iphone-ipad...isplay-23-pcb-q49c-info-about-transistor.html
http://www.ehmac.ca/mac-iphone-ipad...311-cinema-display-troubleshooting-parts.html
Apple Cinema display 23" ... detection problem - Badcaps Forums
But ... monitor doesn't work yet
Next I will describe what I did, do and will do:
1. I have a 24.5V from power adapter to mainboard input and disconnected center pin. Only +24.5V and Gnd connected.
2. I checked input from DVI(pin14) +5V. Red wire (J6) at mainboard.
3. I changed LM1117DT- 33 (VR3) w/out success Vin= 5.06V Vout=3.24V
4. I check Q1 transistor(H7XZ1). If I right understand it's P-Channel 20-V (D-S) MOSFET Si2367DS
Gate 11.1V Drain 24.5V Source 24.5V I dont know this is good or bad voltage cause I dont know how it should be
5. 2672(VR1) have only one pin powered Vin=24.5V
I attached picture with voltage at main board with some points I checked
Investigation to be continued ... join this