Re: Hitachi LE55A6R9 LED Issue or?
PS Pretty good pictures right? LOL
PS Pretty good pictures right? LOL
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39 Soldering Iron burns And Counting
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Re: Hitachi LE55A6R9 LED Issue or?
1/2 hour in.Attached Files39 Soldering Iron burns And CountingComment
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Re: Hitachi LE55A6R9 LED Issue or?
The new set of the LED may have bad solder joints on the connector pins that join the two strip together.
Glad to see it is working.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Hitachi LE55A6R9 LED Issue or?
Oh wow, can't believe I found a thread about the same exact model TV, and with a very similar problem... and people who actually seem to know what they're talking about
My situation: a TV at a friend's house died a week ago. Hitachi LE55A6R9 LCD TV, powers on, switches inputs/sources, and there is an image on the screen if I shine a flashlight onto it. But the LCD backlight is dead, all black.
I have a digital multimeter, and a soldering iron, and know how to desolder / solder in basic electronic components. But I have no clue which components are responsible for this failure. Also, I'm willing to order replacement parts, but I don't know which parts to order. (I'm not there to keep messing around with additional tests).
Not really looking to make this a complicated project, just doing a favor for a friend who's on a limited budget and doesn't want to throw out a $ 600 TV.
So, in a situation like this, where the backlight is totally dead - what should I look for as far as replacement parts? Either an entire board, or solderable components? (I doubt I can replace SMD devices, but standard solder connections shouldn't be a problem).
Also, if it's a matter of replacing individual components, I'd really appreciate any heads-up about potentially dangerous capacitors...
Any advice would be much appreciated!
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Re: Hitachi LE55A6R9 LED Issue or?
In a dark room do backlights flash on when first powered on?I assume no responsibility for any stupid suggestions I might post.Comment
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Re: Hitachi LE55A6R9 LED Issue or?
Read post 45 and later.Oh wow, can't believe I found a thread about the same exact model TV, and with a very similar problem... and people who actually seem to know what they're talking about
My situation: a TV at a friend's house died a week ago. Hitachi LE55A6R9 LCD TV, powers on, switches inputs/sources, and there is an image on the screen if I shine a flashlight onto it. But the LCD backlight is dead, all black.
I have a digital multimeter, and a soldering iron, and know how to desolder / solder in basic electronic components. But I have no clue which components are responsible for this failure. Also, I'm willing to order replacement parts, but I don't know which parts to order. (I'm not there to keep messing around with additional tests).
Not really looking to make this a complicated project, just doing a favor for a friend who's on a limited budget and doesn't want to throw out a $ 600 TV.
So, in a situation like this, where the backlight is totally dead - what should I look for as far as replacement parts? Either an entire board, or solderable components? (I doubt I can replace SMD devices, but standard solder connections shouldn't be a problem).
Also, if it's a matter of replacing individual components, I'd really appreciate any heads-up about potentially dangerous capacitors...
Any advice would be much appreciated!Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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I own a Hitachi 50HK6100U with a display fault. After some troubleshooting, I've found that removing one tcon cable produces a clear image on the side still connected. Removing the other tcon still provides display output; however, this is a heavily distorted image. With both cables connected, only the top ~25% of the screen provides display output which is still distorted. It's only when both are connected that most of the screen no longer provides output. The attached images show the screen with each tcon cable disconnected, and one with both connected. The red line shows where the display cuts... -
I have a Hitachi 57F710E Rear Projection TV that was working great until 3 or 4 days ago. I came in and tried to turn it on and it was just dead. So, I unplugged it and plugged it back in. Nothing, not even the slight click that it makes when you plug it in. So, I removed the power supply board (It's a vertically mounted board, I believe model HA01312) and inspected it visually for bulged caps or burnt or overheated components, anything that didn't look right and couldn't find anything.
I noticed on the bottom of the board there was a row of solder joints with voltages printed next... -
Hi Folks,
Just wanted to clear up a misunderstanding of mine (or what I expect is one). Isn't the 12V rail from the 24 pin, EPS and PCIE separated? IE if I put a power resistor on the ATX 12V pin that is not going to load, thus tell me if the EPS or PCIE rails are fine?
I was recently watching ArIs from Hardware Busters video on how to properly test ATX PSUs without using 5 figure Croma substations.
The PCB adapter he used breaks out the 12, 5 and 3.3V pins from the 24 pin and gives you banana plugs to connect to. That is a bit useless is it not? Aren't... -
I have a TCL 43S435 with no backlights. I contacted ShopJimmy and they said power supply. I got replacement power supply, but still doesnt work. I have confirmed that there is an image with flashlight test. I have also verified that the led strips work when I probe them with LED tester. Any ideas would be helpful. I am also geting a double blink on the status led when trying to turn it on......Nothing on the power supply looks suspect, and caps look ok. Where should I start to test......Thanks!...
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Hi, help needed if anyone can spare any knowledge for me.i understand its an old spec now but been reliable enough for me until this.
bootup suddenly doesn't show bios screen/menus.So can't do anything!🥴
I don't know how to upload video of what happens.
So I have screenshot 4 pics of what happens when power button pressed.
1st beep from board sounds normal,
Bios screen should show up.
I always have connected from onboard hdmi port to TV.
Tried VGA lead same issue.
Also tried swap ram,and clean everything.
But with no luck.
System is...
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