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Is my lcd broke?noobie killjoy!
Posted: Mon Dec 26, 2016 5:26 pm
by majestic
Hi community,
My problem is that my lcd is flashing, like its on and off 2seconds apart. I do have both white and yellow connected but that's because i get no image using just one. I dont see the AV1 or AV2 as its flashing and the pi boots fine as i can see the process in between flashes.
Have I knackered the screen?
Re: Is my lcd broke?noobie killjoy!
Posted: Tue Dec 27, 2016 1:33 am
by fcib
majestic wrote:Hi community,
My problem is that my lcd is flashing, like its on and off 2seconds apart. I do have both white and yellow connected but that's because i get no image using just one. I dont see the AV1 or AV2 as its flashing and the pi boots fine as i can see the process in between flashes.
Have I knackered the screen?
Send us a picture of the wiring. If you had both connected, you would have 2 wires going to the TV pin which is wrong.
You should only need either the white or yellow wire. If you have both, it may be switching constantly between av1 and av2, causing the flashing.
Re: Is my lcd broke?noobie killjoy!
Posted: Tue Dec 27, 2016 6:28 am
by Tomarse
First - disconnect one of the AV cables from the TV connector. I used AV2 by accident rather than AV1 but my BW screen doesnt seem to care and selects AV2 for me.
Secondly - Do you have a valid image on the SD card in the PI?
I had mocked mine up and had just put a random SD card in the slot as a placeholder.
When I first turned it on I could see activity on the PI's LED that looked like it was booting but the TV didn't come on and didn't light up at all.
As soon as I wrote a new SD and turned it on with that in it powered up the TV output properly and the screen came on.
Re: Is my lcd broke?noobie killjoy!
Posted: Tue Dec 27, 2016 3:03 pm
by majestic
My sdcard image is fine as i see it boot.
If i just have one wire connected i get no image at all. Do i ground the signal from elsewhere??
Re: Is my lcd broke?noobie killjoy!
Posted: Tue Dec 27, 2016 3:27 pm
by majestic
I rewired as per Fleders guide but still just flashes.
Re: Is my lcd broke?noobie killjoy!
Posted: Tue Jan 03, 2017 9:39 am
by majestic
SOLVED
My v7 screen stabilised its image after soldering as per pic.
Thanks for you advice and time. Happee neww year !!
SOLVED. Re: Is my lcd broke?noobie killjoy!
Posted: Thu Jan 05, 2017 2:34 am
by majestic
majestic wrote:Hi community,
My problem is that my lcd is flashing, like its on and off 2seconds apart. I do have both white and yellow connected but that's because i get no image using just one. I dont see the AV1 or AV2 as its flashing and the pi boots fine as i can see the process in between flashes.
Have I knackered the screen?