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Hi. I have strange board here. 820-3115-b.
green light on charger is on and of every 10 second and fan trying to spin and make beep noise . anybody know anything about that? i replaced new smc and still this same
Hi. i have strange problem i dont know how to get round it.
820-3435-b board. no water damage or things like that.
when i plug charger cable its powering up also i can power in down using power button but when i press power button to power up with charger cable connected and full charged...
i have problem. no water damage at all. just keyboard and trackpad no working.
R7914 : 3.27k ohm and voltage on pin number 2 is 3.3v and pin number 1 is 2.7v (its enable pin so it should be 3.3v is it right? )
J5713 : pin 30 - 2.45 ( should be 3.3v )
J5713 : pin 4 - 3.41v
not sure what i...
hi. i have problem here. water damaged board 820-00165-a . i did replaced corroded components but is still not powering up. i checked voltage :
PPBUS_G3H - 8.62v
PPBUS_S5_HS_COMPUTING_ISNS - 8.62v
PPBUS_S5_HS_OTHER_ISNS - 8.62v
PPDCIN_G3H_ISOL -16.5v
PPDCIN_G3H -16.5v
PP3V42_G3H - 3.42v...
Hi. I have board after water damage where i replaced damaged components but i dont have any picture on screen nothing even i put light behind or on central point of screen. Sound coming out from speakers.
i have board i have problem to fix . Long time not been here so i decide to ask for help.
pin 27-28 on u7000 -20.5 ohm
R7047-10.5 ohm
R7031- 10.5 ohm
J6950 - pin 9,8,7 0.2v pin 6 and 4 3.4v
what should i check. Help please
hi. i have second problem i dont really understand how to find out whats pulling down voltage on PPVCORE_S0_CPU when i have 3.3v on enable pin 47 u7400 and pin 46 vcc is 5.01v
TONB pin 1 181 k ohm, TONA pin 48 181.3 k ohm
so my voltage on iPPVCORE_S0_CPU is 0.79v
how do i find...
Hi. i have board with i can't fix it myself and need some help. i watched Louis video about bad capacitor but i have voltage on L7770 pin 2
PP1V05_S5_MCP - 1.10v but PP5V_S3 is 0.00v and board don't powering up. Can anybody help me here?
Hi. I have water damaged 820-2936-b. replaced damaged by water components, reballed smc, changed new lcd connector, also new lcd cable and also checked memory ram to. Still no picture but is powering up ok.
voltage checked:
PPBUS_G3H - 12.55v
PPDCIN_G3H - 16.5v
PP3V42_G3H - 3.42v
PPVRTC_G3H -...
hi. i have mac pro a1286 emc 2314. is not powering up. is anybody had problem with power supply? what normaly go faulty in this unit? i have 3 of them with this same problem
Hi. I have strange situation here. I had water damaged macbook with i manage to bring back to power up. Its had back light fuse bloow, lcd connector broken and no green light on charger. I fix all of them but when i realise i dont have red light on charger so i decide to replace u7000 to fix...