Re: Hitachi LE55A6R9 LED Issue or?
anyone know of another place to buy LED strips besides shop jimmy?
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Re: Hitachi LE55A6R9 LED Issue or?
here are some pictures of the back of the board. thanks again, really appreciate all the help.Attached FilesLeave a comment:
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Re: Hitachi LE55A6R9 LED Issue or?
thank you, I will pull the board and get a picture of the back, from what I have been reading these sets have a high failure rate on the strings.Leave a comment:
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Re: Hitachi LE55A6R9 LED Issue or?
How do you know they are 1.5v? My experience is around 3.2v. Budm and others are the experts so my correct me but seems if each connector is feeding 3 strings then you have bad diode or something on side with 0v. Could we get a picture of back of board?Last edited by dskall; 05-30-2017, 08:47 PM.Leave a comment:
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Re: Hitachi LE55A6R9 LED Issue or?
sounds like bad led's. time to open it up and check them.Leave a comment:
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Hitachi LE55A6R9 LED Issue or?
hey ya all, hope all is well with you folks. Hope to ask for some help, this Hitachi set i am working on has no back light but does have an image via the flashlight test. my question is this: there are 66 LED's in this set, 6 rows of 11, at 1.5V each should require 99V to turn them on. well I am getting 186V at the power supply terminals that go the the LED's on one pair and 0V on the other pair, I am thinking the strips LED, are toast and not presenting a load on the power board, but the voltage seems awful high even with no load??? Thanks for your help all.Attached Files -
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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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