Hi anyone, I have a Satellite P750 part no. PSAY1A-01Y022 when I turn on with battery, power led light on about 5seconds, I can hear fan spinning then turn off by itself. when I turn it on by plug in power adaptor with battery remove power led light on then turn off right away. Does anyone have any tips, or come cross with this fault before and how to fix it?
TIA
Dat
dtonline
Member
Last Activity: 04-14-2020, 06:53 PM
Joined: 04-27-2014
Location: SA
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Re: ASUS X54L no power
Update find out power ic RT8206A some measurements as follows
Pin3 VCC= 5V
Pin 6 Vin=19V
Pin 10 Vout1=5V
Pin 13 PGOOD1=3.3V
Pin 14 EN1= 3.3V
Pin 19 PVCC=5V
Pin 27 EN2=3.3V
Pin 28 PGOOD2=3.3V
Question is pin 14 EN1 should be 5V but measure only 3.3V
so what was wrong come from... -
Re: ASUS X54L no power
I dont have schematic, if you can look mainboard please advise which JP numbers for power IC and SIO.Leave a comment:
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ASUS X54L no power
Hi, I have this laptop completely dead, try to search for schematics could not find anywhere, is anyone have this or guide me to troubleshoot this fault? I attached here with mainboard photos, model K54L HannStar J-MV1 94V-O 1128 E89382
TIA... -
Re: SAMSUNG NP-365E5C Goes straight BIOS Screen
I found missing device (empty) in propriety boot up page although on the first it was detecting DDRW and HDD. Bios page pictures attached....Leave a comment:
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Re: SAMSUNG NP-365E5C Goes straight BIOS Screen
What do you mean hdd issue? please advise more. I have already changed 3 working hdd's. TIA...Leave a comment:
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Re: SAMSUNG NP-365E5C Goes straight BIOS Screen
Change 3 working hdd's, there is no UEFI settings on BIOS, unplg internal KB, plug ext USB KB no help, only reflash BIOS i did not do so far, I am more concern that BIOS was a problem, How can I reflash the BIOS while it does not boot from dvd or USB...? please advise.
TIA...Last edited by dtonline; 08-31-2014, 07:42 PM.Leave a comment:
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Re: SAMSUNG NP-365E5C Goes straight BIOS Screen
Remove keyboard laptop still remain the same either plug in usb keyboard or not. Press del, F2, F4 key when press power button do not make any different. Any suggestions. ThanksLeave a comment:
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Re: SAMSUNG NP-365E5C Goes straight BIOS Screen
I changed different hardrive before but no help, I will remove keyboard later let you know the result. TksLeave a comment:
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SAMSUNG NP-365E5C Goes straight BIOS Screen
Hi, Every time power on this laptop goes straight to Bios screen, there is no memtest or anything else boot up screen.
Brand: Samsung
Model: NP-365E5C
I suppose could be a BIOS problem is anyone come cross with this fault?
I am waiting for experts can help me to solve this problem.
TIA
Be... -
Re: Pegatron H36T Mainboard
Thanks for all replies, as you can see it seem this ic has a very big bang what is causing that? I 'd like some advises do I need to check any other components before I turn it on after replace this ic?Leave a comment:
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Re: Pegatron H36T Mainboard
Here is picture after clean up it seem as RT82..6A...Last edited by dtonline; 06-05-2014, 01:23 AM.Leave a comment:
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Re: Pegatron H36T Mainboard
After clean up i can read RT8...A, missing some numbers in the middle, middle row is GQM and last row is CDC2Y. This motherboard comes from leader notebook local brand and model H36Leave a comment:
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Pegatron H36T Mainboard
does anyone know what is the burning IC or have a schematic for this pegatron H36T mainboard rev. 2.3? TIA... -
Toshiba L500 no power
Hi, This laptop has no power can anyone help me to fix this
i checked so far
Q6002
Drain=19V
Source=0.03V
Found Q6005 shorted drain to source
i think this fet was faulty, question is does it internal fault by itself? if so do i need to check any other components connect to this? If replacement still no go
what else do i need to check. Hope someone can guide me to solve this. Thanks... -
Re: Asus UL50V no power
Update info, laptop has cooling fan turn on by itself, cpu heat up when power adaptor plug in for about 1 or 2min. without pressing power button. I have been told mainboard get short it wont repairable. is there anyone know where I can get used cheap mainboard replacement.Leave a comment:
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Re: Asus UL50V no power
It's is UL50VS mainboard, rev. 2.2Leave a comment:
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Asus UL50V no power
Hi, I have this laptop which is completely dead, there is no power led, battery light.. at all I check power adaptor, couple of fets 4635GM they are ok. do you know link I can get schematic. Can anyone guide me to troubleshooting to find fault? Hope you can help me.
TIA
Dat... -
Re: New Members - please post your introductions here
Hi, I am a new member here, I try to learn fixing component level laptop, I do expected a lot of expert technicians will help me out. Hope to talk to you soon. ThanksLeave a comment:
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Re: Looking For Drivers
for the es1868 sound driver for windows 95, please download from this [url]http://www.mediafire.com/download/if9iwssbismg9k3/WIN95.rar[/url]Re: Looking For Drivers<br /> <br /...IN95.rar[/url]...Leave a comment:
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