Circuit Shield - White Screen

kaltalen
Posts: 7
Joined: Sun Jan 02, 2022 10:27 pm

Circuit Shield - White Screen

Post by kaltalen » Sun Jan 16, 2022 6:44 pm

Hi All,
Started getting my Circuit Shield together today, Ran through the set up here:
https://github.com/kiteretro/Circuit-Sh ... uit-Shield
Everything seems fine till step 11, where i don't get anything on my display, just white display (see Image 1).
Searching the forums it the only similar issues have either been with a badly seated CM3 or with solder on the SODIMM slot pins, neither seem to be my issue.(see image 3 and 5)

If I turn the device ON then OFF shortly after it stays on, but if i wait long enough before turning the device OFF it will turn off, would that mean its booting up enough to run the safe shutdown and that the screen is the issue? Im guessing not as it does seem to turn of immediately when it gets to that point.

The lights also change after being on for about 30 seconds(ACT becomes solid and FAN stops lighting up) See Image 2
Image 1Show
271654710_638688544001754_4321412241986799623_n.jpg
271654710_638688544001754_4321412241986799623_n.jpg (126.7 KiB) Viewed 1326 times
Image 2Show
270749625_216622914019115_1986412295943436062_n.jpg
270749625_216622914019115_1986412295943436062_n.jpg (92.92 KiB) Viewed 1326 times
Image 3Show
271283375_349829136973723_2037115857320224377_n.jpg
271283375_349829136973723_2037115857320224377_n.jpg (95.19 KiB) Viewed 1326 times
Image 4Show
270580835_359568392180393_2988637018283018458_n.jpg
270580835_359568392180393_2988637018283018458_n.jpg (103.75 KiB) Viewed 1326 times
Image 5Show
269795367_937460510496753_187582729589289308_n.jpg
269795367_937460510496753_187582729589289308_n.jpg (124.98 KiB) Viewed 1326 times
Because of all the similar issues i could find relating to white screen being to do with the compute module, I'm guessing mine is to, unfortunately i don't think i have anything else to try the module in or another module to try in this.

Any suggestions on what i could do to work out what's wrong?

hicm3
Posts: 19
Joined: Sun Nov 14, 2021 4:26 am
Been thanked: 2 times

Re: Circuit Shield - White Screen

Post by hicm3 » Mon Jan 17, 2022 5:02 pm

it may some connect didn't good
thx

Anthology
Posts: 28
Joined: Tue Jun 30, 2020 1:05 pm
Has thanked: 2 times
Been thanked: 9 times

Re: Circuit Shield - White Screen

Post by Anthology » Tue Jan 18, 2022 2:55 pm

Which version of the screen do you have (resolution)?

kaltalen
Posts: 7
Joined: Sun Jan 02, 2022 10:27 pm

Re: Circuit Shield - White Screen

Post by kaltalen » Tue Jan 18, 2022 7:57 pm

It should be the 320x240 LCD.

hicm3
Posts: 19
Joined: Sun Nov 14, 2021 4:26 am
Been thanked: 2 times

Re: Circuit Shield - White Screen

Post by hicm3 » Tue Jan 18, 2022 11:02 pm

the screen didn't initialize then it will be display white screen
thx

kaltalen
Posts: 7
Joined: Sun Jan 02, 2022 10:27 pm

Re: Circuit Shield - White Screen

Post by kaltalen » Tue Jan 18, 2022 11:17 pm

I guess im trying to work out why it hasnt initialized then
I have disconnected and reconnected the screen, and it seems to be inserted correctly

hicm3
Posts: 19
Joined: Sun Nov 14, 2021 4:26 am
Been thanked: 2 times

Re: Circuit Shield - White Screen

Post by hicm3 » Wed Jan 19, 2022 12:05 am

kaltalen wrote:
Tue Jan 18, 2022 11:17 pm
I guess im trying to work out why it hasnt initialized then
I have disconnected and reconnected the screen, and it seems to be inserted correctly
the screen need ic to initiatized correct then display

thx

kaltalen
Posts: 7
Joined: Sun Jan 02, 2022 10:27 pm

Re: Circuit Shield - White Screen

Post by kaltalen » Fri Jan 21, 2022 11:31 pm

So it defiantly seems like the screen, i bought a mini HDMI plugged that in and that showed up the rpi logo, so im guessing everything else is ok.

Where is the IC that initializes the screen? ill see if the solder connections are all good.

The ribbon connection looks good
Screen ribbon connectionShow
270782013_2721557991487396_7941198437933849509_n.jpg
270782013_2721557991487396_7941198437933849509_n.jpg (215.1 KiB) Viewed 1088 times

hicm3
Posts: 19
Joined: Sun Nov 14, 2021 4:26 am
Been thanked: 2 times

Re: Circuit Shield - White Screen

Post by hicm3 » Fri Jan 21, 2022 11:48 pm

kaltalen wrote:
Fri Jan 21, 2022 11:31 pm
So it defiantly seems like the screen, i bought a mini HDMI plugged that in and that showed up the rpi logo, so im guessing everything else is ok.

Where is the IC that initializes the screen? ill see if the solder connections are all good.

The ribbon connection looks good
Screen ribbon connectionShow
270782013_2721557991487396_7941198437933849509_n.jpg
can you show some use hdmi plugged that showed up the rpi logo pic for check?

kaltalen
Posts: 7
Joined: Sun Jan 02, 2022 10:27 pm

Re: Circuit Shield - White Screen

Post by kaltalen » Mon Jan 24, 2022 11:57 pm

Here is what happens when i plug the mini HDMI in:
SpoilerShow
271716386_616318099669259_4321496324041450827_n.jpg
271716386_616318099669259_4321496324041450827_n.jpg (98.58 KiB) Viewed 1041 times
When first turned on, this is what displays on the screen
Initial ScreenShow
272007857_440175581176111_3754889865130061189_n.jpg
272007857_440175581176111_3754889865130061189_n.jpg (63.08 KiB) Viewed 1041 times
then after 20 seconds or so it displays this:
Second screenShow
271849841_931133684247074_2601264561760064030_n.jpg
271849841_931133684247074_2601264561760064030_n.jpg (73.65 KiB) Viewed 1041 times
So it doesn't look like the issue is with the pi at all.
Oddly safe shutdown doesn't seem to work after the device has been booted with the screen plugged in.

Is it the software on the sd card that sends the initialize to the screen? or is it all in hardware?

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest