Urgence on hp g62-a10ep EC KB rom

[highpulse]

I GUYS

Well im here with a problem , and i would like to know if someone here have or could share dumps for this model stated above for the EC and system bios files , the system bios i can download it from HP but the EC KB rom i can't , so if someone have it , please share .

thk in advance

[dj_ricoh]

Re: Urgence on hp g62-a10ep

post a pic of the second chip!
i know they have the same size same brand

[loser18]

Re: Urgence on hp g62-a10ep

If you me give mobo part number, will look for dump in my comp...

[highpulse]

Re: Urgence on hp g62-a10ep

pm_I_hpc_s MV_MB_V3

p/n- 01013y000-575-g

this have intel p6000cpu with ati dedicated gpu and itexpeak intel , the KB bios is a 256kb rom , and the system rom is a 4mb


but now more strange indeed , start whenting for option , this board was turning on but shuting off after 10sec. noticed that cheking S0 there was no voltage on any coils . just the main step controler coils 3.3 and 5 . and also charge coil 5v , all the outher when pressed on , 0 volts . so i start for the bios , got stucked (but if was showing sign of charging batery and conecting computer seems rom EC is ok .. so just reflashed system rom , and the same happen , so i start thinking on the KB ITE controler . i swaped it from another board i had in spares , and this KB was getting hot and computer not turning on, so replaced a KB frmo a working board and the KB is no longer getting hot , but now , no led on the dc jack , and also not turning on , and only have 3.3 volts , 5 volts is not present on the SN , only having the LDO and EN_LDO and also pin 17 with 4.8 volts . the LDO have the correct value , even like this , i swaped this SN for a RT (swapable) the same symptom , got 3.3 but no 5 volts , on the on off button also getting 3.3 and drop to 0 when pressing ON button .. so my question is , maybe the first KB swap fucked up EC bios , and now KB cannot EN 5 volts ! or what else is missing ? cheked for short , didnt find any , resistance to ground is ok on the 5 volts line .. so ideas ???
thk in advance

[loser18]

Re: Urgence on hp g62-a10ep

Could you post schematic???
Hope You swapped exactly the same KBC...
Every mobo has different architecure, so hard to say without a schematic, whether KBC enables 5V or regulator itself...

[loser18]

Re: Urgence on hp g62-a10ep

OK....

I've found this...
It's a BIN for ITE IT8502E from G62...

[loser18]

Re: Urgence on hp g62-a10ep

I'm on iphone so couldn't check the schematic properly but according to power sequence 3.3 and 5v are generated by TI itself...

[highpulse]

Re: Urgence on hp g62-a10ep

i there , yes its enable frmo beggining , so it should have always 3.3 and 5 . but this board is getting to much erratic , each time im finding more problems and the board is getting worst by the time , and just cheking bios and KB's .. but no more 3.3 and 5 , and now 19 volts line is in short . so must fix all lines now first , and then i'll carry forward.
let you know later guys

[fagulhas]

Re: Urgence on hp g62-a10ep

Viva,

Se a linha dos 19v está em curto, verifica a ficha de entrada ( o ultimo que reparei tinha a ficha em curto).
Desliga a ficha e verifica se o curto se mantém. Dá também uma verificação nos mosfet DB19 a DB21.

Boa sorte.

Hello,

If the line of 19V is shorted, checks the plug (the last one i repair the plug had shorted).
Disconnect the plug and check if the short is maintained. Also gives a check on the mosfet DB19 DB20 DB21.

Good luck

[highpulse]

Re: Urgence on hp g62-a10ep

boas fagulhas

thk for the tip , but that was the first thing to fix , but it damaged many thing on the 19volts line , and many of the spares i dont have in stock , and due to huge time to receive them , my client is in a hurry and prefer buying a computer with us , so ok for me , and next job .
thk anyway

[Ahmed.nagh]

Re: Urgence on hp g62-a10ep

Thank you very much