I have the same LCD with the same circumstances but from my probing I found that: pin 1~ GND pin 16&17~ V- for the back light pin18~ NC (pin space between back light +&-) pin~19&20~ V+ for back light
I have a seeking suspicion that pin 2 is the LCD power and that the other pins follow a standard LCD module pin-out
Pin 1&2 are ground Pin 19&20 are Vcc, 5 to 27v Pin 3to10 should go strait to the chip, a binary counter should tell you what they do. Pin 11to18 should be functions. I could tell you more with a better PIC.
That strongly suggests it was a one time special mass manufacture for this one purpose only. We will probably never see its like in a future products again.
the pc078pyl identity is the name of the chip and apparently there may be several manufacturers, check: http://core-ic.com/quote.php?lcount=2&S1=ON&P1=PC078PYL02
I think the 02 at the end is becuase it is now the 2nd version.
I have no idea how to match a logo across a world full of corporate logos, but I did several searches for the pinouts based on that chip - all to no avail.
There are only a few mfgs of 20 pin LCDisplays. Is it feeding a Hitachi chip on the other side ? Or is it direct from the Taiwan black blob ? What will you do with the pinout once you have it ?
Discussions
7 years ago
You can find the manufacturer here
Answer 6 years ago
yur funny...
6 years ago
I have the same LCD with the same circumstances but from my probing I found that:
pin 1~ GND
pin 16&17~ V- for the back light
pin18~ NC (pin space between back light +&-)
pin~19&20~ V+ for back light
I have a seeking suspicion that pin 2 is the LCD power and that the other pins follow a standard LCD module pin-out
7 years ago
Pin 1&2 are ground
Pin 19&20 are Vcc, 5 to 27v
Pin 3to10 should go strait to the chip, a binary counter should tell you what they do.
Pin 11to18 should be functions.
I could tell you more with a better PIC.
7 years ago
full front and back photos
Answer 7 years ago
if i do remember correctly i took it out of an Old Credit car machine thing
Answer 7 years ago
That strongly suggests it was a one time special mass manufacture for this
one purpose only.
We will probably never see its like in a future products again.
Answer 7 years ago
probably right easier to order one from adafruit
7 years ago
If it is a device that has to do with communication, look for the FCC # and then go here. http://transition.fcc.gov/oet/ea/fccid/help.html
7 years ago
the pc078pyl identity is the name of the chip and apparently there may be several manufacturers, check:
http://core-ic.com/quote.php?lcount=2&S1=ON&P1=PC078PYL02
I think the 02 at the end is becuase it is now the 2nd version.
I have no idea how to match a logo across a world full of corporate logos, but I did several searches for the pinouts based on that chip - all to no avail.
7 years ago
There are only a few mfgs of 20 pin LCDisplays.
Is it feeding a Hitachi chip on the other side ?
Or is it direct from the Taiwan black blob ?
What will you do with the pinout once you have it ?
A
Answer 7 years ago
Arduino
7 years ago
Black blob i need pin out
7 years ago
Why is the manufacturer's name important to you?
L
7 years ago
Is it one of those liste At this site?