[Astijus]

Hello!

We are still down with this Leadwell V-20 with a problem at the controller will not start.

On the main controller LED status at power up is "8". The LED error code is the one in the attached picture.
As I understand it, the CPU is not active. Motherboard A16b-3200-0491

When I press the start button on a control panel, LED status 8 appears immediately.
There are no other anomalies within the other machine components, you can see this in video zip file attached. Machine was working fine, I changed 1815 Y axis parameter for zero return position, restart was required and after shutting down the machine, it is not starting anymore.

Tried to use function switch and push button, function 5 from maintenance quide to clear all SRAM data. No reaction.
Also tried to start up the system while holding down the DELETE and RESET to induce the system into a main reset reboot. No reaction.


We will appreciate any pointers that could help us find a solution. Thanks!

[Astijus]

.

[catur4widhi]

SRAM issue, try to clean the socket.

[zavateandu]

SRAM issue, try to clean the socket.

Do not say to people is SRAM issue as you do not make the difference between LED 8 with all 4 greens and one from middle second row is RED on and LED 8 with 4 greens led on and on the second row the last 2 are RED on for SRAM problem

In his case is the CPU not started and need replace and his SRAM can still be ok if the battery is not disconnected from mainboard while replacing the CPU

Go read this manual and learn some B-63835EN/03