Re: TOSHIBA Satellite boots up to windows but no display on screen
Fn+f4 key is not for external display shortcut key it's fn+f5, first try to remove the battery and insert the vga cable before you turn on the laptop and press f2 to enter bios setup.
goodbrethen
Member
Last Activity: 01-25-2018, 12:42 AM
Joined: 12-04-2012
Location: Bohol
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Lenovo G570 bios password
Hi Guys, i have lenovo g570 bios password problem i tried to short the pads CLRP1,CLRP2 and CLRP3 but the bios password is still there also removing the cmos battery it doesn't help, any idea to remove the password?
Thanks in advance! -
Re: Power Problem Toshiba C650
I have one schematic for toshiba satellite c650, I hope this is the one your looking for.
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Re: Hp dv6000 no power
yes, all the charger are original i used 18.5v and 19v charger, and im 100% sure that is not charger problem. my problem is the gate voltage at PQ61 is only 2v this one should be at 5v-12vLeave a comment:
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Re: Hp dv6000 no power
actually i short the pin 1 and 8 the laptop is working but the battery is not charging, it means that i have a problem only in ac adaptor side.Leave a comment:
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Re: Hp dv6000 no power
PIN 5,6,7,8-19v PIN4-2V PIN 123-0vLeave a comment:
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Re: Hp dv6000 no power
[QUOTE=siddiq;296604]Try changing PQ40 if you haven't done so already.[/QUOTE
i've done already, now my problem is pin10 of the charging ic before there is 3v now 0V pin11 before 0v now 5v and VH28 before 30v now 2VRe: Hp dv6000 no power
[QUOTE=siddiq;296604]Try changing PQ40 if you haven't done so already.[/QUOTE
i've done already, now my problem is pin10 of the charging ic before there is 3v now 0V pin11 before 0v now 5v and VH28 before 30v now 2VRe: Hp dv6000 no power
[QUOTE=siddiq;296604]Try changingLeave a comment:
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Re: Hp dv6000 no power
I already change the mosfet PQ62 but still no VIN out, a measure the voltage the pins of PQ2 pin1-19V, Pin 2,4,5,6-4v, i measure the voltage across the of PD20 -pin1-19V, PIN2-2V but the voltage across Pin is came from VH28 which is 30V...Leave a comment:
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Re: Hp dv6000 no power
How possible to get 3 and 5 volts when VIN has no voltage, this is between the dc jack to PQ1 mosfet and L1 inductor which provide voltage to 3 and 5v. By the way i tried to used battery and it worked with battery not on ac adapter. My ac adapter is working properly.I replace all mosfet around the charging ic but still no VIN out. one problem I check the voltage gate at PIN4 in mosfet PQ3 there is 2v and on resistor PR182-4v PR183-30v and in charging IC pin11 ACOK-0v. here i provide a schematic diagram.....Leave a comment:
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Re: Schematic diagram
thank you so much!!! very appreciated......Leave a comment:
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Hp dv6000 no power
Hello guys, i have dv6000 at3 mainboard, the laptop has no power. i check the VIN there is no output.I already replaced the charging IC Maxim 8724E still no VIN, i check all the PIN except PIN11-ACOK# no voltage, can somebody help me because im new chip level repairing.. I hope somebody can help to fixed this problem..thanks.. -
Re: Schematic diagram for sony SZ series
I need schematic diagram for sony vaio vgn-sz79mn mainboard part# mbx-170 i hope somebody can help me...Leave a comment:
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mbx-170 Schematic diagram
hello guys, i need schematic diagram for sony vaio vgn-sz79mn mbx-170
thanks in advance... -
Re: Emachines D725 Keyboard and touchpad not working
try to reset all the cable connection connected to keyboard and touchpad maybe it will help.Leave a comment:
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Re: Lenovo 3000 no power after replacing the keyboard controller chip
i tried to measure the voltage on mosfet lm393 pin5 beacause it was connected to B+ and resistor PR18 but its 0V but on transistor PQ1 which connected also to B+ the voltage is there. here i attached the scheme. i hope somebody can help me! thanks...Last edited by goodbrethen; 12-15-2012, 02:35 AM.Leave a comment:
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Re: Lenovo 3000 no power after replacing the keyboard controller chip
Maybe possible, but i bought it new, sealed with an anti static plastic. but i will try to replace it again. thanks for the help!...Leave a comment:
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Lenovo 3000 no power after replacing the keyboard controller chip
I have lenovo 3000 with m/b part#: la-3451p, this laptop is working only with battery and not working on ac adapter i replaced the charging ic part# MB39A126 but still ac adapter not working after checking some components i saw keyboard controller chip part# ene kb295 it was burnt, then i replace that ic but after replacing when i try to power on again the laptop now its not powering on, even in battery now its no power. can somebody help me what to do next? help is very much appreaciated! thank you.
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