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820-3478 No power iMac 1st LED on 2nd LED blinking.
Hello, I have dead iMac 21,5 I try KGB Power supply but still the same. First LED always is on, secound blinking (pulse) when board get 0,7A. Always on: PP3V_G3 - 0,23-3,3v pulse PP12V_ACDC 12.04V 590 PP12V_G3H 12.04V 590 PP3V42_G3H 3.40V 460 S5: PP12V_S5 12.00 V PP5V_S5 4.98V PP3V3_S5...- mjanuchta
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- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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820- 00165 No booting, Fan spin
I have 820-00165. Macbook not booting, When i connect power DC: Green light, fan spin, Orange light, eat 0,72A. No sounds and image. Hot CPU and SSD (thermal camera picture) Voltage in L7095- 3,42V- mjanuchta
- Thread
- Replies: 5
- Forum: Macbook Logic Board Repair Questions
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820-3332 A Not recognizing, doesn't see SSD, questionmark folder.
Hello I have 820-3332 with problem with detected ssd, voltage and resistance in connector is normal, i replace U4510 but still the same, drive was seen when i connect with usb. SSD have HFS. About history of this computer i know that customer put in this bad adapter with this ssd (photos). After...- mjanuchta
- Thread
- Replies: 2
- Forum: Macbook Logic Board Repair Questions