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Re: One simple question
So, I went at this stupid card again tonight, more or less because it's becoming personal. I heated the he11 out of it, to the point that the capacitor on the opposite side of the pcb was too hot to touch and more or less getting guey, with the solder station maxed out and a nice glob of new solder to transfer heat -- NOTHING.
Obviously I don't care much about the card anymore, but I don't understand what's going on here. I replaced a different cap on an Asus motherboard tonight just fine, and fixed 5 Viewsonic 19" LCD power supplies the other day.
Normally. Not. A problem.
....anyone....????Comment
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Re: One simple question
i sometimes CAREFULLY preheat with a heatgun on a stubborn board.watch out for hsf pushpins,ect.Comment
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Re: One simple question
Since the cap is probably destroyed by all the heating, I'd take a pair of dikes to it and chop the can off down to the leads. Remove all the other bits of the cap leaving the leads. Then you should be able to get them out with little effort.
Or, if clearance permits, wiggle the can side to side until the leads snap, then go from there. BUT, it may not leave you with anything to grasp and pull out.
What card is this and have a pic or 2?veritas odium paritComment
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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... -
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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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.... -
Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt... -
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...
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