Re: safe tempratures laptop board
Thanks momaka for the reply , can you explain a bit in lay man terms .. when i use the revork station i feel it is going to effect the chips or small components near by , and that is the reason for ask this question so i dont spoil other parts + ic's which i am working on.
how can i measure 230 degree i am learning and dont have luxury of complex devices.
thanks again.
learnix
Member
Last Activity: 05-23-2014, 01:50 AM
Joined: 12-30-2012
Location: KL
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Re: dark green and light green color laptop motherboard
Thanks, can you please explain a bit more on
rail power and ground and how this all can help me in tracing components connection with each other
example two mosfet connected with all pins in dark green quote but one pin will be in light green color out of 8 pins. how does this works ?
regards.Leave a comment:
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Re: dark green and light green color laptop motherboard
on the same board different color light light green and dark green or light blue and dark blue .. i am trying to trace components relationship hopefully this will help
thanks.Leave a comment:
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dark green and light green color laptop motherboard
Hi , does the light green and dark green color of the motherboard denotes something ? thanks in advance -
Re: SOny MBX-216 3.3V lost
please drill down further , are you facing this when battery is connected ? or you are testing with only power adapter ?
have you tried using only battery or power adapter to identify the behavior ?Leave a comment:
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mobo theory
Hi ,
i am newbie as my question confirm , i can see many components in different mobo section such as usb etc have a coil , 2 mosfet , interface connector and ic
what is the principal/way they function together ?
mosfet
coil
capacitor
and in case one of them fail how to find the replacement of that ?
Thanks. -
safe tempratures laptop board
Hi when working with laptop mobo's what is the temp limit that we need to set on rework station ?
should we apply flux before heating IC's or components for a quick desolder ?
thanks in advance. -
Re: NVIDIA G86-630-A2 replacement
Thanks will go with it update the results
Leave a comment:
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NVIDIA G86-630-A2 replacement
Hi , i am looking for a replacement for NVIDIA G86-630-A2
the BGA i found is saying
S TAIWAN and mine is A TAIWAN
number remains the same : G86-630-A2
what does that means ? A TAIWAN / S TAIWAN
can i purchase that ? will it work ?
thanks -
Re: toshiba A50 orange light blinking
guys when fixing battery i am getting 72h (01001110) when i remove battery i am getting 00001000 (80h)
anyone there who can advise what it can be ?Leave a comment:
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Re: toshiba A50 orange light blinking
guys got the answer from youtubue : [url]http://www.youtube.com/watch?v=gG_NOWFSTlQ[/url]
will try and update thanks.Re: toshiba A50 orange light blinkin...update thanks.Re: toshiba A50 orange light blinking
guys got the answer from youtubue : [url]http://www.youtube.com/watch?v=gG_NOWFSTlQ[/url]
will try and update thanks.Leave a comment:
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toshiba A50 orange light blinking
Hi , i have a toshiba A50 when connect adapter the green light stays for 2/3 second and then orange light start blinking with following sequence and that keeps repeat.
4 times for 1/2 second 1 time for 1 second and 3 time for 1/2 second
1/2 second is 0
1 second is 1
00001000 but i do not know how to translate this even i got the below link.
anyone understand what this blink code means for toshiba motherboard ?.
i saw some blink codes but was not able to understand how this works
[url]http://www.tomshardware.com/forum/79388-35-toshiba-blink-error-codes[/url]... -
Re: TX2 motherboard 504466-001 low voltage
Adding transistor pic...Leave a comment:
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Re: TX2 motherboard 504466-001 low voltage
hi i have 15N03GH , i do not understand replacement transistor but the voltages are 1 volt on 2 pins and 19VLeave a comment:
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Re: TX2 motherboard 504466-001 low voltage
thanks my question was raised after reading from this schematic do you understand PG 39 voltages and how to confirm expected voltages on point 1 / 4 / 3 on PQ37 just to identify if this is working as expected or not .
regards.Leave a comment:
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Re: TX2 motherboard 504466-001 low voltage
sorry its PQ37 getting voltage from charger to the IC i have inserted second screen as well. as for IRFR3709 , i need to go back and check on that transistor i will add the voltages that are out as well but after few hours thanks a lot...Leave a comment:
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Re: TX2 motherboard 504466-001 low voltage
forgot to add the screenshot....Leave a comment:
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TX2 motherboard 504466-001 low voltage
Hi,
i have HP touchsmart tx2 laptop , identified as per below screenshot the voltage at the PQ36 is coming low 1V but not sure can someone confirm if i am on the right track
Emitter is 18+ , Base and Collector are not giving 5V .. can someone please advise as per the picture.
secondly this motherboard was previously repaired and some other transistor is in place not "IRFR3709" but before i go and purchase i want to make sure i am right about the voltage i have confirmed with another TX1 board and on that the voltage at this transistor is... -
Re: Abbreviations
Thanks again , so nice of you , is there any tip in the mean time to understand the input and output are there any such symbols ? that can identify inputs and outputs that's all will help.Leave a comment:
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Dell Vostro 1400 no power
Hi , i am new learner trying to learn laptop repairing as of now i have idea about checking individual components and tracing etc , taking out and putting back SMD stuff etc.
I want to know how voltage is distributed on the board just to understand where to get started with.
Example , from the power jack the voltage goes to which ic .. onwards to the south bridge -> north bridge (GPU) and to CPU depending on Intel and AMD.
hope you have got the point i am struggling to understand how to check voltage for a no power machine i.e looking for a starting...
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