k40in not charging

[highpulse]

Well received this board , sayng it was not charging they had changed few times system charger since they had some used ones .. until they damaged the Core line for bath making 19volts line fucked up , fix the 19 volts line , and i've got in back alive again .
So i got for pin 1 and 2 12.95v . pin 3 and 4 GND , 5 and 6 - 3.30volts . pin 7 i got 0.17 volts online . all the outher are GND ..

i've been trying to follow schematic but ... unfortunetly there is no ID on board to follow easy , shouldn't pin 7 higher ?

i'm gonna add here the schematic , page 60 is for bat terminal ..
any taughts will be welcome

cheers

[cyberhack]

Re: k40in not charging

Post pictures pcb

[highpulse]

Re: k40in not charging

ops forgot the schematic . tomorrow once i arrive to work i will add the schematic and pictures of both sizes of the PCB .

thk in advance guys

[highpulse]

Re: k40in not charging

well like promised here it is the pictures and schematic ,

[cyberhack]

Re: k40in not charging

Where are checking the voltages page?

[highpulse]

Re: k40in not charging

cheking pages 60 for pinout on battery
page 85 to chek main bat charge .

and the values i gave you are mentioned on the first post

[highpulse]

Re: k40in not charging

there are a few zinner and a main bridge but all values are ok on pin 5 6 and 7 without battery , when battery is inserted pin 7 drop to a very low value . this voltage come from KBC

[highpulse]

Re: k40in not charging

fixed , there was a problem, on small component on the main voltage rail

[shijeesh]

Re: k40in not charging

Sir which component fail.

[highpulse]

Re: k40in not charging

one of the 2 fets on the main charger system , they are 2 near a tantalum capacitor and near the coil . you can see on the pictures i've posted

[highpulse]

Re: k40in not charging

and also , system charger was replaced by another and system charger ic also replaced since was getting a bit hot.

[cyberhack]

Re: k40in not charging

PIN 5/7 = BUS LINE
Pin 7
BAT1_IN_OC#=Low  Battery absence
BAT1_IN_OC#=High Battery IN
It is possible that D6005 faulty but not had one yet

[highpulse]

Re: k40in not charging

i tough could be that bridge , but was ok after testing it . in the end there was a leak on the mosfet for charger line , and also system charger was getting more hot that usual , a possible fault caused to the outher store , replaced and have done something with the board since it was in total short when came to my store . but working and charging now thk anyway guys

[highpulse]

Re: k40in not charging

cyberhack and it was diferente , BAT_IN_OC , was total oposite , high value without bat and low value with bat

[highpulse]

Re: k40in not charging

but also would be not easy fiding does components since this board have no ID at all , ad not seenabl were the trace goes frmo the bus lines to see where were the Diode and bridge section