Products > Test Equipment
GW Instek LCR-821 LCR Meter Display Issue.......
Smokey:
Ha! The signal path was messing around with a very similar display module here. (Around 6 min)...
https://youtu.be/kNnc-lDHtrM?si=mUysRavLZf0ge69I
Kean:
--- Quote from: Smokey on September 06, 2024, 07:06:56 am ---Ha! The signal path was messing around with a very similar display module here. (Around 6 min)...
https://youtu.be/kNnc-lDHtrM?si=mUysRavLZf0ge69I
--- End quote ---
Well that instills some hope in repairing it. I didn't think the conductive glue on the flex would respond to heating well enough to be effective.
Smokey:
My display cable is fully detached through... Someone may or may not have um... gotten too aggressive during disassembly. :(
I was hoping to just use the instrument through RS232 and not worry about the display but there is an amazingly bad level of support. The "official" windows app from GW Instek was last supported in windows Vista. Windows 10 refuses to even try to run it, even in compatibility mode. I installed it in an XP VM, but getting the USB->RS232 adapter through the VM wasn't working.
There are also exactly zero SCPI drivers for python (or anything else) that I could find. I found one labview vi, but I don't have labview.
So ya... The busted display is minimally functional still so I'm going to quit messing with it for now.
Kean:
For reference, I did a little searching and the LMBHAT014G18CS is made by Nan Ya Plastics in Taiwan.
Specs for LMBHAx014x16CS are
* Graphic LCD module
* Monochrome
* 240 x 128 pixels
* 170 x 102 x 14mm module dimensions
* 128 x 74mm viewable area
* RA6963L2NA controller (5V logic)
* CCFL backlight
* Requires negative bias voltage
Download of catalog including this module can be found at NPC Taiwan website
https://www.npc.com.tw/j2npc/enus/prod/Electronic/Liquid-Crystal-Display(LCD)/Liquid%20Crystal%20Display%20(%20Graphic%20module%20)
I couldn't find a datasheet unfortunately, so hard to know exact specs and compatibility with similar options.
In particular what the suffix "G18CS" relates to, but most likely backlight colour and connection type.
Smokey:
--- Quote from: Kean on September 06, 2024, 10:10:40 am ---For reference, I did a little searching and the LMBHAT014G18CS is made by Nan Ya Plastics in Taiwan.
Specs for LMBHAx014x16CS are
* Graphic LCD module
* Monochrome
* 240 x 128 pixels
* 170 x 102 x 14mm module dimensions
* 128 x 74mm viewable area
* RA6963L2NA controller (5V logic)
* CCFL backlight
* Requires negative bias voltage
Download of catalog including this module can be found at NPC Taiwan website
https://www.npc.com.tw/j2npc/enus/prod/Electronic/Liquid-Crystal-Display(LCD)/Liquid%20Crystal%20Display%20(%20Graphic%20module%20)
I couldn't find a datasheet unfortunately, so hard to know exact specs and compatibility with similar options.
In particular what the suffix "G18CS" relates to, but most likely backlight colour and connection type.
--- End quote ---
killer. I'll check that out. Shahriar replaced the backlight with LEDs on his. Looked pretty straightforward, but he already had it apart.
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