SAMSUNG UE55MU6442 - no standby

[krzysiek-gda]

Hi i have Samsung UE55MU6442

the tv will not turn on, there is no standby light,
Main board BN41-02568B (BN94-11958M)
Screen CY-KM055HGAV2H


when i remove the psu cable to main board i get backlight

attached my dump file from 25Q40

Can someone send me the right file please?

[lotas]

Re: SAMSUNG UE55MU6442 - no standby

Hi i have Samsung UE55MU6442

the tv will not turn on, there is no standby light,
Main board BN41-02568B (BN94-11958M)
Screen CY-KM055HGAV2H


when i remove the psu cable to main board i get backlight

attached my dump file from 25Q40

Can someone send me the right file please?

Try.

[Diah]

Re: SAMSUNG UE55MU6442 - no standby

i don't think this is spi issue. if there no STB light... mean to me 3.3V rail are dead. but i hope it worked for him

[lotas]

Re: SAMSUNG UE55MU6442 - no standby

i don't think this is spi issue. if there no STB light... mean to me 3.3V rail are dead. but i hope it worked for him

If the firmware 25Q40 (standby) flies, then the LED will not light up in this chassis either.

[krzysiek-gda]

Re: SAMSUNG UE55MU6442 - no standby

Try.

lotas! I love you!

Works from first try

[Diah]

Re: SAMSUNG UE55MU6442 - no standby

If the firmware 25Q40 (standby) flies, then the LED will not light up in this chassis either.

but the 3.3v rail come from dc to dc converter on MB and its feed also the spi vcc .. so need to know if spi vcc can located on it or not.. this info only at the OP head lol good work lotas.. i love it

[Diah]

Re: SAMSUNG UE55MU6442 - no standby

yes i can see hex 0h to 1000h are empty and some empty sector later are computed... funny.. but good job lotas

[lotas]

Re: SAMSUNG UE55MU6442 - no standby

Firmware 25Q40 is responsible for the standby mode and the power on it is 3.3v constantly.

[Diah]

Re: SAMSUNG UE55MU6442 - no standby

Firmware 25Q40 is responsible for the standby mode and the power on it is 3.3v constantly.

but at same time this 3.3v will be available at IR and front STB led... i cant imagine stb led will be from start off at time he plug it in wall.. at least blink for few ms.