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I now apple hardware test make,

Yes i check now no image

hi this is motherboard no video no external and imagine video but a have chime

Ok Q7085 bad.I replaced is working now.Thanks

Smc_bc_acok 3.474v Smc reset 3.474

Yes magesafe is working and keyboard not connected. I motherboard cleaned isl center Corresion.And i check sys onewire vltge stabile

this board water damage ppbus_g3h 12.6 pp3v42_g3h 3.476

smc dead.I changed now is working.Thanks for help

Yes a have green light

Smc reset voltage ok 3.4V Stable but PP3V3_S5 => 0,03V

Yes..Smc Reset 2.817v

hi water dam No Greenlight on the magsafe PPDCIN_G3H =>16,7V PP3V42_G3H =>3,43 V PPDCIN_G3H_ISOL =>16,7V PPBUS_G3H =>8,19V PPBUS_S5_HS_OTHER_ISNS =>8,19V PPUS_S5_HS_OTHER_ISNS => 8,198V PPVRTC_G3H 3,43V

I'm sorry no voltage PPVCC_S0_CPU 0 voltage

İ know Same problem another idea ? i check now cpu not warm

I check now but no picture and reset pram make no chime no picture no video no external video

Yes a have light

This board water damage isl change ok PPBUS_G3H 12.26V PP3V42_G3H 3.38V PP3V3_SUS 3.3V PP3V3_S5 3.32V PP3V3_S3 3.32V PP3V3_S0 3.32V PP5V_S5 5.04V PP5V_S4 5.04V PP5V_S3 5.04V PP5V_S0 5.04V PP1V35_S3 1.35V PP1V35_S3_MEM 1.35V PP1V35_S3RS0_CPUDDR 1.36V PP1V35_S3RS0_FET 1.36V PP1V5_S0...

No voltage L7260..But l7220 a have voltage no stabile (sample: before 0.123v -2.255v- 3.453v after 0.123v -2.255v- 3.453v Variable )

Yes of course

Yes. 3.477v stable