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ORDER # 2242635 DEFECTIVE 10 PIECES
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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by koehler on Tue Mar 10, 2020 1:43 pm

see attached picture.
Attachments
Img2615.jpg
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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by adafruit_support_carter on Tue Mar 10, 2020 2:47 pm

Thanks for the photos.

For the issue with scratches - did all the displays arrive with the protective sticker still on the screen?

For the other issues, it may be connection related. The soldering looks potentially marginal on some of the pads. Also, keep in mind that for SPI mode usage, jumpers need to be soldered on the back of the board:
https://learn.adafruit.com/adafruit-2-d ... umpers-5-5

Let's pick one to try some further troubleshooting. This one:
img2623_crop.jpg
img2623_crop.jpg (45.82 KiB) Viewed 216 times


Make sure the SPI mode jumpers on the back are adequately soldered. Post another photo showing that solder job on the mode jumpers.

Also, try reflowing the pins for better soldered coverage, esp. the CLK pin:
img2623_pins.jpg
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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by koehler on Wed Mar 11, 2020 11:54 am

The displays all came with the plastic protective film on them.

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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by koehler on Tue Jun 08, 2021 3:37 pm

I would like to return to you the following:
Part # 11700 under PO # 200322 for 16pcs
Part # 11700 under PO # 211020 for 7pcs
For the following reasons:
DEFECTIVE SCREENS.
BUGGED SCREEN (SPONGEY TEXTURED SCREEN)
REPEAT INCIDENCE, CORRECTIVE ACTION NEEDED.
PLEASE ISSUE ME AN RMA # , YOUR SHIPPING ADDRESS AND UPS ACCOUNT # AS SOON AS POSSIBLE SO I CAN RETURN THESE TO YOU FOR NO CHARGE REWORK OR NO CHARGE REPLACEMENT.

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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by adafruit_support_carter on Mon Jun 14, 2021 10:57 am

Did you try reflowing the soldering on the pins as suggested above? Based on the photos, the issues could be soldering related. We need to verify the soldering is good before suspecting the displays are bad.

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Re: ORDER # 2242635 DEFECTIVE 10 PIECES

by adafruit2 on Mon Jun 14, 2021 11:29 am

please also check the back of the PCB, there is a socket for the TFT display that could have come loose
'spongey' display doesnt make sense - you ordered a touchscreen display, the touchscreen has a soft cover.

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Please be positive and constructive with your questions and comments.