hi everyone i got a laptop which was the sio chip removed maybe the other technician remove this but the problem is 3pads have remove on the board is there a way i can connect again the chip?please help
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Re: SIO remove pads on the board
good clear pictures of the area on the board will help us -
Re: SIO remove pads on the board
ok thanks for the response this is the image attachedAttached FilesComment
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Re: SIO remove pads on the board
you can connect it,i see only one missing pad,it is 6th pin from the end(pin nr.123).You must look in schematic,maybe is not conected and under the pin was only free pad. Other pins carefully straighten with some pike tool and solder it back..fine solder tip,good flux and microscope-10minutes of workComment
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Re: SIO remove pads on the board
where should i connect the missing 123pin?Comment
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Re: SIO remove pads on the board
look in schematic for this board..if you dont have it,post the motherboard numberComment
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Re: SIO remove pads on the board
board code is x450ep rev 2.0Comment
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Re: SIO remove pads on the board
I see some pins are connected together. Do not plug power/battery into the laptop to avoid damaging the SIO.Comment
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Re: SIO remove pads on the board
i dont have schematic for this board but this one pin can be also not connected-not in use..separate the pins and solder it back to the board..leave the one unconected,i dont see any trace going to this pinComment
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Re: SIO remove pads on the board
some pins looks like bend (or bent ) . check with good magnifier if they are isolated or touch other pins before give power. if so, better put a new one and use a bit of extra solder 60-37 without extra flux on the missing pad.Comment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)
- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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I am new to hot air soldering. I need to remove one chip from the board. I have a hot air solder and I set the temperature to 350°C. I slowly started heating the chip, but the solder didn't melt. I heated it for about 5 minutes, but the solder still wouldn't melt. I increased the temperature to 450˚C and still nothing. After a while, the board started to change color, but the solder still didn't melt.
Fortunately, I'm testing it on old network switches to see how it works.
What am I doing wrong?
I've seen a lot of videos on youtube and everyone got the solder melted and the...
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