[SOLVED] Broken FPC Connector in HDMI display

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salami738
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[SOLVED] Broken FPC Connector in HDMI display

Post by salami738 » Fri Dec 22, 2017 1:55 pm

Hi,

I have the HDMI 3.5 inch 480x320 display with a controller board:
Image
There is a string on the FPC cable, backside: FPC-QD350C48001V1.

Today I noticed that the lcd backlight turns on and off at random times and it flickers. I opened up the case and when I move the panel, the problems became intense. I marked the lanes that are used for the backlight.

Is there any way of fixing a broken FPC cable? Don't want to replace the whole display with controller board... :oops:
Last edited by salami738 on Sat Dec 23, 2017 11:47 am, edited 3 times in total.

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YaYa
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Re: Broken FPC Connector in HDMI display

Post by YaYa » Fri Dec 22, 2017 2:29 pm

You can try to solder a wire to replace the broken path !
Find the starting pad and follow it to the end.
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salami738
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Re: Broken FPC Connector in HDMI display

Post by salami738 » Sat Dec 23, 2017 4:18 am

YaYa wrote:
Fri Dec 22, 2017 2:29 pm
You can try to solder a wire to replace the broken path !
Find the starting pad and follow it to the end.
Thanks for the tipp. I was hoping there is some magical way, in which I dont have to solder this very tiny smd leds :lol:
It was do able, here are some pictures (only had to replace the anode wire (+)).

Before
Image

After
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Re: [RESOLVED] Broken FPC Connector in HDMI display

Post by YaYa » Sat Dec 23, 2017 5:38 am

Great ! Please salami put a [solved] into the topic’s title
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Re: [SOLVED] Broken FPC Connector in HDMI display

Post by salami738 » Sat Dec 23, 2017 11:47 am

Changed that. Cant login on my phone, so I have to wait... Happy christmas!

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