Hello everyone,
seems like the new year brings me new Problems
After starting up my FP2NC yesterday morning the CRT just shows a line.
This is one of these unexpected overnight problems...
The line "matches" the set machine mode and I can jog the Axis, run the Spindle and change Tool.
For me this indicated a failure of the CRT itself or a bad CRT controller board.
I ruled the CRT out, using a cheapo DSO Oscilloskope. There was no measurable Signal on the vertical deflection grid.
According to the schematic of the NDM51 Board the vertical deflection is controlled by a single TDA1170 chip with a ELCO in the output signal line.
I will now change the TDA and some of the electrolytic caps on the board.
If this measures doesn't work, I probably will have to bite the bullet and buy a replacement NPM51 Board or swap out TFT...
Has anyone of you run into similar problems?
Is my assumption with the broken parts right?
Kind regards,
Markus
seems like the new year brings me new Problems
After starting up my FP2NC yesterday morning the CRT just shows a line.
This is one of these unexpected overnight problems...
The line "matches" the set machine mode and I can jog the Axis, run the Spindle and change Tool.
For me this indicated a failure of the CRT itself or a bad CRT controller board.
I ruled the CRT out, using a cheapo DSO Oscilloskope. There was no measurable Signal on the vertical deflection grid.
According to the schematic of the NDM51 Board the vertical deflection is controlled by a single TDA1170 chip with a ELCO in the output signal line.
I will now change the TDA and some of the electrolytic caps on the board.
If this measures doesn't work, I probably will have to bite the bullet and buy a replacement NPM51 Board or swap out TFT...
Has anyone of you run into similar problems?
Is my assumption with the broken parts right?
Kind regards,
Markus