nesdev.com
http://forums.nesdev.com/

GBA LCD Potentiometer?
http://forums.nesdev.com/viewtopic.php?f=9&t=16481
Page 1 of 1

Author:  MNiceGuy [ Mon Sep 11, 2017 8:48 am ]
Post subject:  GBA LCD Potentiometer?

Hi all,

I've been performing the AGS-101 mod on a few GBA's recently and I found one of the donor AGB-001's has a problem without an easy solution. For the one in question, it looks like someone removed the rear sticker and attempted to adjust the LCD potentiometer but used too much force. It now spins endlessly and the adjustments are very finicky.

Ideally, I'd replace the potentiometer without having to rob one from another GBA. Does anyone know the ratings for this particular one?

Author:  lidnariq [ Mon Sep 11, 2017 10:47 am ]
Post subject:  Re: GBA LCD Potentiometer?

I found a thing.
Attachment:
GBAschem-CPU.png
GBAschem-CPU.png [ 64.61 KiB | Viewed 862 times ]


VR1 is 50kΩ.

Author:  MNiceGuy [ Mon Sep 11, 2017 11:51 am ]
Post subject:  Re: GBA LCD Potentiometer?

Thank you!

My schematic skills are not what they could be. Is this the potentiometer in question?

Attachments:
GBA Potentiometer.JPG
GBA Potentiometer.JPG [ 13.01 KiB | Viewed 851 times ]

Author:  lidnariq [ Mon Sep 11, 2017 11:59 am ]
Post subject:  Re: GBA LCD Potentiometer?

Yes.

Page 1 of 1 All times are UTC - 7 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/