My quest for a cheap LCD for Neato XV!

News and information about the Neato XV-11 Robotic Vacuum. All discussion and troubleshooting questions go here.

Re: My quest for a cheap LCD for Neato XV!

Postby Saturn » February 26th, 2017, 5:46 am

Hi all

Looking for cheaper solution than a 70€ spare lcd board on ebay, I found this awesome topic. :clap:

I plan to use FCP40-to-DIP40 and ERC128128FS lcd from buydisplay.

Is the following solution correct or does it need some reverted order, as Tris suggested ?
oxdbxo wrote:Tris, I have a question

in case of using this,
Image

change the number like this
Image


and visual representation,
Image

Right?



:thanks:
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Re: My quest for a cheap LCD for Neato XV!

Postby Cloe » April 26th, 2017, 2:26 pm

Hi guys,
I fried my Neato XV-21 LCD screen trying to remove one of the many stripped screws.
Fortunately I have an older model XV-11 that I also fried replacing the old ribbon, so I use it for parts.
My question:
How do I safely remove the LCD screen from the old XV-11 and use it in the XV-21? I already removed it the board, but LCD seems to be glued solid.
Any suggestions?
All this came about from trying to get to the bottom of the infamous
"My vision is blocked error 3000" Does it matter if the replacement little motor guy is 12V instead of the 16V that it comes with? Have not been able to locate one that size with 16V
THANK YOU!
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Re: My quest for a cheap LCD for Neato XV!

Postby glnc222 » April 27th, 2017, 12:38 pm

Lidar motor in thread http://www.robotreviews.com/chat/viewtopic.php?f=20&t=17034&p=143067&hilit=vision+blocked#p143067
Some replacements also available from Vic7767 at https://www.vic7767.com/neato-and-botvac-lidar-replacement-motor/
Many nominal 12v motors also operate at higher voltages, especially under pulse modulation speed control.

I do not know about the LCD except that if something is glued on, break the glue with a knife. Why not just move the entire PCB -- different cables? Caution whether the LCD is compatible.

[edit] Voltage regulator components supply levels different than the battery voltage for various components, such as 5v common with digital items, and 3v for some cpu's. The highest voltage is for the most powerful drive and brush motors.
Last edited by glnc222 on April 28th, 2017, 1:24 am, edited 1 time in total.
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Re: My quest for a cheap LCD for Neato XV!

Postby vic7767 » April 27th, 2017, 2:13 pm

Cloe wrote: Does it matter if the replacement little motor guy is 12V instead of the 16V that it comes with? Have not been able to locate one that size with 16V
THANK YOU!
Cloe


The Lidar motor that spins the Turret around is rated at 3 to 6 volts.
Roomba and Neato Mods, come visit: http://www.vic7767.com/

http://www.Robot-Doc.com/
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Re: My quest for a cheap LCD for Neato XV!

Postby azah » May 5th, 2017, 3:28 pm

Hi my friends!

I 've already got the lcd and the FPC40-toDIP40 pcb solder as per connection diagram :

Image

with no success!

I have two questions :
-is pin 6 connected to sth because I can see a light blue color mark on it!
Image1.jpg
Image1.jpg (22.91 KiB) Viewed 360 times


-are the connections ok or I have to swap the pinout of pcb adpter (my LCD is already reversed)
Dsc_0091_.jpg


NOTE: in a previous post asedovski has mentioned that if you connect the lcd (with neato off-battery removed) you have to press the buttons in specific sequence in order to initialise lcd - is it right?
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Re: My quest for a cheap LCD for Neato XV!

Postby Tris » May 7th, 2017, 9:23 am

@Saturn
@azah

That connection diagram drawn by oxdbxo would only work if the LCD contacts were facing upwards. Read my comment in the second post after his...

viewtopic.php?f=20&t=19263&start=60#p140579
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Re: My quest for a cheap LCD for Neato XV!

Postby Tris » May 7th, 2017, 9:27 am

azah wrote:NOTE: in a previous post asedovski has mentioned that if you connect the lcd (with neato off-battery removed) you have to press the buttons in specific sequence in order to initialise lcd - is it right?


No, his comment was about having the Neato switched ON while performing the work. I do not recommend working with live circuits, no matter what the voltage as damage could occur if you get it wrong!
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Re: My quest for a cheap LCD for Neato XV!

Postby Tris » May 7th, 2017, 9:39 am

I've had some requests to list the SMT component values used on my board, so here they are!

23 MkII Adapter with values.jpg
SMT Component Values


The value of the original resistor was 330 Ohms but 1K works fine.
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Re: My quest for a cheap LCD for Neato XV!

Postby azah » May 8th, 2017, 4:58 am

Thanks for the info my friend!
are these polarized caps?
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Re: My quest for a cheap LCD for Neato XV!

Postby Tris » May 8th, 2017, 12:33 pm

Non-polarised.
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Re: My quest for a cheap LCD for Neato XV!

Postby DucLeto » May 17th, 2017, 1:15 pm

Hi
I think this could help ;)
BranchementNeato.png
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Re: My quest for a cheap LCD for Neato XV!

Postby DucLeto » May 21st, 2017, 2:58 pm

I've finally finished the job.
It works ! But just for 15 seconds and blank screen comes again...
I have to turn off then turn on and another 15 seconds of working screen :evil:
Anyone have an idea of what could I do to solve this issue ?
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Re: My quest for a cheap LCD for Neato XV!

Postby Tris » May 21st, 2017, 8:49 pm

Have you connected OSC1 to VDD? Your diagram shows it disconnected!
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