Voltage instability 3Volts battery on laptop Thomson neo14A-2WH32
Voltage instability 3Volts battery on Thomson neo14A-2WH32 laptop
I have a Thomson NEO14A laptop with a Y116C REV 6.0 motherboard that seems to have a big problem on the 3V line of the battery, because the voltage is not stable at all sometimes there is a peak that goes down to 0.90 then goes up to 2 volts then 3.3 V then the voltage drops again and this constantly and puts random values.
So impossible to start the logic computer.
For information impossible to find the diagram as well as the boardview
What I noticed: When the charger is connected, the blue led is fixed to indicate that the power is good.
On the ETA6003 chip (Switching Charger) there is 5.25Volts stable on rail IN pin 2
Rail 16 and 14 random voltage that is unstable 0.20 Volts then goes up then down, also at the terminals of the battery connector without battery placed.
Chip already resoldered and same problem.
On the Boost DC/DC Convertor LP6230B no voltage on the VIN pin 6 line and no short circuit
Do you think that the ETA6003 chip is faulty?
Which component could disturb this line? A tired capacitor? Or an inductor?
Thanks a lot =D
Translated with www.DeepL.com/Translator (free version)
I have a Thomson NEO14A laptop with a Y116C REV 6.0 motherboard that seems to have a big problem on the 3V line of the battery, because the voltage is not stable at all sometimes there is a peak that goes down to 0.90 then goes up to 2 volts then 3.3 V then the voltage drops again and this constantly and puts random values.
So impossible to start the logic computer.
For information impossible to find the diagram as well as the boardview
What I noticed: When the charger is connected, the blue led is fixed to indicate that the power is good.
On the ETA6003 chip (Switching Charger) there is 5.25Volts stable on rail IN pin 2
Rail 16 and 14 random voltage that is unstable 0.20 Volts then goes up then down, also at the terminals of the battery connector without battery placed.
Chip already resoldered and same problem.
On the Boost DC/DC Convertor LP6230B no voltage on the VIN pin 6 line and no short circuit
Do you think that the ETA6003 chip is faulty?
Which component could disturb this line? A tired capacitor? Or an inductor?
Thanks a lot =D
Translated with www.DeepL.com/Translator (free version)
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