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820-2838 not turn on
The MagSafe has green light and fans spinning, but no screen and chime. PP0V9_ENET and ALL_SYS_PWRGD 1.8v are to low. Where can I find the reason for this? Because all the input voltages are right? PP5V_S0 5.08v PP3V3_S0 3.3v PP1V5_S0 1.51v PP1V05_S0 1.05v PP1V05_S0_MCP_PLL_UF 1.05v...- Mellerv89
- Thread
- Replies: 1
- Forum: Macbook Logic Board Repair Questions
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820-3588 - No internal DP recognized
The internal display of concerned iMac is not being recognized in OSX and doesn't turn on. With an external display connected everything works fine. Unfortunately I have not managed to find any boardview files for this specific model - thus debugging it is quite painful. Diagnostic LED 4 does...- Mellerv89
- Thread
- Replies: 2
- Forum: Macbook Logic Board Repair Questions