HI all.
Working on toshiba m/b # 6050A2170401-MB-03 REV.1.00. Still only a newbie at this! Anyway, the laptop was working fine then suddenly lost display and hd not spinning up. (5v present at sata connection) afer inspection i found there is no 1.8v apparent. Ihave (at least i think i have) traced it back to U3 on boardview which I have attached.
On checking the chip i have confirmed 5v at pin 10 but no 1.8v at pin 1 or pin2
I tried injecting 1.8v at pin 1 but the board shuts down when I do so. forgot to mention the board starts and runs ok but strangley wont shut down when power button is pressed. Dont know if termination regulator requires input signal or not.
Sorry post is long winded but trying to include as much info as I can.
[MOD EDIT]
Link to boardview - https://www.badcaps.net/forum/showthread.php?t=125086
Reminder: rules and organization of this section - https://www.badcaps.net/forum/showthread.php?t=117483
Working on toshiba m/b # 6050A2170401-MB-03 REV.1.00. Still only a newbie at this! Anyway, the laptop was working fine then suddenly lost display and hd not spinning up. (5v present at sata connection) afer inspection i found there is no 1.8v apparent. Ihave (at least i think i have) traced it back to U3 on boardview which I have attached.
On checking the chip i have confirmed 5v at pin 10 but no 1.8v at pin 1 or pin2
I tried injecting 1.8v at pin 1 but the board shuts down when I do so. forgot to mention the board starts and runs ok but strangley wont shut down when power button is pressed. Dont know if termination regulator requires input signal or not.
Sorry post is long winded but trying to include as much info as I can.
[MOD EDIT]
Link to boardview - https://www.badcaps.net/forum/showthread.php?t=125086
Reminder: rules and organization of this section - https://www.badcaps.net/forum/showthread.php?t=117483