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| Vostro 3400 (DW40 Calpella) Not producing Run Voltages https://vlab.su/viewtopic.php?f=41&t=19223 |
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| P.zonouz [ 17 фев 2014, 17:04 ] | |
| Заголовок сообщения: | Vostro 3400 (DW40 Calpella) Not producing Run Voltages [РЕШЕНО] |
Hi. Laptop brought, Now problem is no correct voltage producing on 3.3V_run and 5V_RUN. 2.4V insread of 3.3V and 3v instead off 5v producing on Mosfets. U4201 & U4202 changing by new one. But notjing changes. Gate voltages on both of the is 4.5V so Gate seems OK. By tossing 3.3 and % volt with PS-Lab everything works ok and M.B booting up!. why not true voltages????!!!! |
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| kaliyan [ 18 фев 2014, 07:41 ] | |
| Заголовок сообщения: | Re: Vostro 3400 (DW40 Calpella) Not producing Run Voltages |
At first, we need to replace the chip of standby, who manages these transistors |
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| P.zonouz [ 18 фев 2014, 09:32 ] | |
| Заголовок сообщения: | Re: Vostro 3400 (DW40 Calpella) Not producing Run Voltages |
RT8205 changed with TPS51115 so everything works fine. |
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