Hey, Got this tv for free. Works fine, great picture except that if you unplug it and turn it back on, it goes to test pattern. (red, green, blue gray, black full screen). Menu, inputs and channel info show as they should, so I dont suspect tcon. If I do a factory reset, the tv performs as it should. Only if I disconnect the power does it go back into test mode. Is the eprom corrupt or can I remedy this in service mode? Any ideas are appreciated.
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Re: Vizio D55UN-E1 test pattern
You could try and freeze the EEPROM using freezer spray or a can of duster air (and inverting the can) and then power on and see if it starts up as normal.Willing to help but I'm no expert. -
Re: Vizio D55UN-E1 test pattern
Found a main board on Ebay ($25). I dont know what caused the problem, but so far so good. No more test pattern on start up.Comment
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Re: Vizio D55UN-E1 test pattern
Saved from recycling. Glad you got there in the end.Willing to help but I'm no expert.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... -
Hello,
I accidentally changed the project ID in the service menu of my Vidaa Hisense 100U7KQ TV. When I turn on the TV, the screen displays an RGB color cycle (test mode???). I contacted Hisense, and they sent me a usb_MTK_9618.EU.bin file, but it doesn't work. I can see that the USB drive is being read, and it flashes for about 10 minutes (the screen remains in the color cycle during the firmware reading), then the TV turns off and restarts, but still in the color cycle mode.
I want to mention that the 4GB USB is formatted in FAT32 MBR. I've also renamed the file to... -
Hello all,
I got this beauty of a 65" Android Smart TV from a roommate whose boss through it out because it didn't work. I've fixed a few TVs before, but was being stupid on this one:
Original issue:
TV powered down after a minute or so, but picture was fine.
Tried replacing main board, which didn't work. I should have just replaced the AC Power board.
Months later, I replaced the power board, so I can see the screen. I lost / threw out my original main board, and there is now what I believe to be a defective main board in the TV. My symptoms... -
Hello
I have power adaptor(220V/input, 12V 1.2A/output) which has symptom of fluctuating output DC voltage between 11.5V-12.2V.
So I opened its plastic case and when switched it on, I heard constant tik tik sound from inside its PCB.
I measured DC voltage between negative and positive pin of the largest capacitor(400v 10uf) and it was measured contant 300V.
I also measured ESR value of all capacitors and I noticed that one of capacitor(KMG 16v 470uf), which located in the secondary side, have high ESR value(10 ohm),So I replaced it with same specification NXH capacitor.... -
vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.
panel: au optronics T650HVN05.4
72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1
Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/
Vizio 55.75J01.001G (91.75J10.004G) Main Board...
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