BQ2084 Fets no output - how to reset or activate ?

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BQ2084 Fets no output - how to reset or activate ?

Postby TN-Notebooks » Sun Jun 18, 2017 10:20 am

Hallo,

after change of cells there is no output Voltage of the Akku.
Prior the Akku worked .
By Software I have access to the Akku. I can Readout everything.
If i connect external Power Source 12,6 Volt ( for 3 plus 3 Cells 4,2 Volts in Line ) there is no charge current and the Akku do not turn on .
desoldered cells and resoldered ... no change.
So FETs switched to of ?? And why ?

Battery Status:
INIT|DSG|

MaxError: 25%
Pack Status :
PRES|VDQ|
Manufacturer Status:
ST0|
Device Type: 2084
Firmware Revision: 1.43


Can i activate/reset the BMS/FETs by SMB commands ?
How i have th write the comands exactly

SC 46 0006 ????

Thank you


rbl 22 devicechemistry hex
4C494F4E
rbl 21 a devicename ascii
Shogun
ww 0 1 write to address 0
OK
rw 0 i read device id
2084
rw 10 i fcc
7800
rw 16 b batterystatus binary
0000000011000000
5432109876543210
rw 1b d ManufactureDate date
2017.06.18 yyyy.mm.dd
sc 46 0006
Write ERROR


DesignCapacity: 7800 mAh
FullChargeCapacity: 7800 mAh
CycleCount: 0
Date: 2017.06.18 yyyy.mm.dd
DesignVoltage: 10800 mV
ManufName: SMP-SDI22F
DeviceName: Shogun
SerialNumber: 002A
ChargingCurrent: 4000 mA
ChargingVoltage: 12600 mV
DeviceChemistry: LION
Temperature: 25,7 C
Voltage: 12505 mV
Current: 0 mA
RelativeSOC: 100%
AbsoluteSOC: 100%
RemainingCapacity: 7793 mAh
VCELL4: 0000 mV
VCELL3: 4165 mV
VCELL2: 4168 mV
VCELL1: 4172 mV
SpecificationInfo: 0021 Hex
Battery Status:
INIT|DSG|
TN-Notebooks
 
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Re: BQ2084 Fets no output - how to reset or activate ?

Postby admin » Sun Jun 18, 2017 11:20 am

Did you check fuse?
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Re: BQ2084 Fets no output - how to reset or activate ?

Postby TN-Notebooks » Sun Jun 18, 2017 11:55 am

i can not identifie a Fuse on the Board

here is One of the Two affected Boards
www.Toshiba-Forum.de/downloads/IMAG2864.jpg
TN-Notebooks
 
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Re: BQ2084 Fets no output - how to reset or activate ?

Postby admin » Sun Jun 18, 2017 12:04 pm

Fuse is a 3-pins device close to fets.
Parallel pins must be shorted.
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Re: BQ2084 Fets no output - how to reset or activate ?

Postby TN-Notebooks » Sun Jun 18, 2017 3:51 pm

Hallo

you are right
Fuse blown

I hope i can get somewhere this Type of Fuse
Do you know the Manufactorer or a Distributor ?

SEFUSE
D6X14C
Attachments
Fuse 2.jpg
Fuse 2.jpg (49.85 KiB) Viewed 561 times
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