It's a 32 inch lcd tv it flashes green, red,white black which is stuck in test pattern...usually it's a commun in magnavox lcd tvs I had a problem on the magnavox which I got fix easy,, but now is diferent model jvc I don't have original remote any ideas how to fix this do I need original remote....
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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.... -
I've got a LN-T4065F which came into my shop with the customer complaining that the test patterns would randomly come up on the screen. Upon testing, the pattern came up on the screen after about 20 minutes of use. We opened it up and did a visual inspection to see if there was any dust or bugs shorting out anything on the board that would generate the test patterns. I'm a bit new to TV repair but on a plasma tv that we recently worked on we strapped out the auto ext on the control board and it generated test patterns on the screen. My thoughts was that maybe something was shorting out that circuit....... -
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.