Recent content by RaezorSharp

Figured that my test display was having the issue....and not showing the higher frequency.....so I've partially resolved this by using the generic jed file.....

The board is a 820-2915B.... the working file seems to be the issue with the video at boot... I found a generic 820-2915/2914 jed file (https://github.com/ayilm1/gMUXBypass).....and tried it....had only success in stopping the flickering......on the boot....after the apple logo the screen goes...

yes..mostly in the top half of the screen

Board back to original state. Removed R2415. Reprogrammed again the 'come_back' jed file then the 'working' file. Put back the R2415 after programming. Still have the same weird behaviour......flashing portion of screen during apple logo then goes dark.

Are you tell me to put back R9704 and disconnect the BKL_EN & BKL_PWM now? The Lattice programmer indicated that the programming worked, are you saying that I should redo this with L2406 removed?

Was able to flash with the original JED file.....screen went black on boot. Flashed the working JED file....now the screen flashes the top of the screen on Apple logo bootup and then goes dark at the end (No image, looks like backlight is lite up....but no login screen is shown. Performed...

I have the Lattice HW-USBN-2A programmer and I have downloaded the Diamond programmer. So I'll connect the programmer to the pads, and program the original file then try the new file.

So I've downloaded the Lattice programmer. Is the process to read a GMUX from a board not converted....then flash this GMUX to the board I want to fix...then try to flash with DosDude code?

I don't have the original dump of the GMUX as I used the demux utility provided by Dosdude... Do you have a dump of the GMux and what is the process I should use to correct this?

Any idea why the screen is turning off during Login? Also if I download the Diamond programmer software how do I confirm the GMUX was flashed properly?

Removed R9704 and tied together BKL_EN & BKL_PWM Also Removed R8904 and R8911as well.. Apple Logo shows up full brightness on boot but display seem to turns off on Login screen. Not sure if GMUX flashed properly but demux utility won't allow me to use the license that it showed consumed initially

Noticed that the LCD connect came disconnected....took reading again Q9706 - Pin 2 & 5 - 3.3v, Pin 3,4,6 - .3mV Q9707 - Pin 4 - 12.58v, Pin 3 - 4.1v, Pin 1,2,5,6 - 12.58v BKL_EN - 3.11V BKL_PWN - 1.3 mV

With the MLB out of the case, nothing but power plugged in... Q9706 - Pin 4 - 12.58v, Pin 3 - 12.18v, Pin 1,2,5,6 - .59v Q9707 - Pin 3 - 11.99v, Pin 2 - 3.3v, Pin 4 - 1mv, Pin 5 - 2.9mV r9788 - 300K r9789 - 148k F9700 - Ok C9782 - 439 Diode Mode

No not solved, I only indicated that the LCD was connected and it works....initial issue has not been resolved. I'm going to have to go back to the start on this and check the path, not sure what is happening with BKL_EN and BKL_PWM.

I just switched R9666 to the correct resistor, noticed it was incorrect. Not sure why BKL_EN was 3V before, might have been my error. Yes, LCD was connected and LCD works.