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hello this board only turns on with the battery, when it has the battery and charger at the same time when pressing the power button it does not turn on
ok esta bien voy a medir, una pregunta el cristal Y1905, deberia siempre oscilar asi sea que no empieze a girar el ventilador( o sea antes del pulso del power)?
not turn on, orange light
PP3V42_G3H_REG=3.42
PPBUS_G3H=8.6
PP5V_S4RS3=oscilacion voltage
PP3V3_S5_REG=3.3V
todas las demas fuentes bobinas oscila voltage
no hay corto en ninguna bobina
no historia disponible
modo bypass persiste problema
sorry for the question as a flash chip if it is not present on the board.I found a small corrosion near this chip, it may be that I need to change the chip?
listo gracias.Ya intente restaurar dfu varias veces y aparece mismo error.Esta medicion de valores
PP2V5_NAND_SSD0=0V
PP5V_G3S=0v
Algo una cosa mas pueda hacer, o algo mas dañado antes de intentar 😟 programar U4770
hola me podria colaborar como compruebo smc_lid, se hace con la pantalla conectada? el equipo se le va al backlight el equipo enciende hasta usuario,pero en ningun momento gira ventilador, mido en smc_lid_R en test point, con pantalla conectada y abierto y da 0v, no se si estara bien
the story is that a battery is placed in it, and after a week I return with the problem, all the voltages are in the coils except
PPVCORE_S0_CPU_PH2=0v
PPVCORE_S0_CPU_PH1=0v
PPVCORE_S0_AXG_R=0v
I already tried bios problem persists
lo siento me equivoque en la enumeracion bobinas :(
L7030=12.56
L7260=3.3V
L7220= el voltaje varia rapidamente subiendo de 0 hasta 5v y vuelve y cae nuevamente y vuelve otra vez a subir hasta 5v asi sucesivamente
el ventilador gira pero se reinicia constantemente
l7330=CICLO 0 to 1.5v...
BOARD HAVE USB DATA, THERE ARE VOLTAGE IN all big coils, but fan not turn on, there is image but without backlight for a moment.the display is good and also the fan, I already tried another one in good condition