PCB Problems - Help Please!

[Swemill]

Hi!
Have bought an used masterboard (A16B-1000-0010 / 08F) from a company and switched out my old one that was broken. Offcourse it gave problems….. Started with an ground-pin that was broken, maybe in the transport but I at least could fix that. Now have I got it connected and the control starts, but the screen is very hard to read. Have tried with the adjustments behind the CRT but nothing helps…. Seems like the numbers / columns is floating together and I can’t see / read the parameters I’m pushing in!
I’ve also noticed that the D/A Converter ( DAC80-CBI-V) that was mounted on my old card isn’t on this replacement… Also the X – Y – Z set “copper” isn’t the same…. I don’t know what machine the board have been mounted in but could it maybe be this that is the problem? The machine maybe had another CRT and axle setup (mine is a 9")?
Should I mount the old D/A converter on the card and change the "coppers" to like the old original boards setup (like the pictures)?

I’m very grateful for help on this…..

Best Regards – “Swemill”

[Swemill]

Nobody here that knows what the D/A converter on the masterboard does?
I have offcourse also sent an email to the "service-replacement" company, but was hoping for more info here...
I unfortunately dont know much about electronics but on Wikipedia it says:

"digital to analog converter" and "Video signals from a digital source, such as a computer, must be converted to analog form if they are to be displayed on an analog monitor".

I then assume that this is the problem!? My 9" monochrome crt is analog i suppose?

All specifications on the converter can be read here (pdf):
http://focus.ti.com/lit/ds/symlink/dac80.pdf but that doesn't make me as a rookie wiser...

Anybody with knowledge about this....?

[memoryman]

the d/a converter is only used if an analog spindle is connected. It has nothing to do with the crt display (which is analog too).

[Swemill]

Ouch.... But thank you Memoryman for your reply!

Could it be the "coppers"? (in the small picture) that affect the crt and does it messy?
The adjustments doesn't seems to help and i really dont know what to do.....
Parts of the screen is possible to read, like the lower edge but it's not as it should and the parameter columns floats together....

[memoryman]

I don't know what "coppers" refers to.

[andyb4]

The "coppers", I think if I am guessing right are the jumpers that are used to set up the axis motor. I believe that they should be set the same as the original board, the three in the pictue and any other sets that may be on the board. Sorry, that still doesn't help you with your screen problem.

[Swemill]

Ahh... Offcourse it should be "Jumpers"! That was a bad translation.

At least the crt is alive, that it wasnt with the other pcb.

Every tip on the screen problem would be grateful! Is there anything else that could affect this?

[Swemill]

Have some more info that doesn't seems to be good....

Have tried with the jumpers according to the original pcb but with no difference.
When starting the control, the CRT displays: "System 3T", wich i suppose is for Turn / Lathe... and i should have the 3M!

Also: REVX, REVY and ABS is missing in the Parameter No.0000 "Setting".

There is also up to parameter 3159 against the original 1095.
The Diagnostics is however the same with up to No.0822.

Is it even possible to use this 3T pcb when my original was a 3M?
I'm thinking on if maybe the chips is complete different - for a different machine and CRT despite that it has the same A16B-1000-0010 / 08F number?

Thanks for your help!

/Swemill

[jdeere4250]

Listen. you need to make all jumpers same on the erplacement pcb. put that dac on the board also. and swap the software chips. and any other chips that are on tho old pcb that are not on the new pcb. Not only is pcb used on mill/lathe but on 2t and 3ma, 3mf, 3mc.

[Swemill]

Ok, thanks!
I did all jumpers because there were only on one more place and that was the same as the original.

"swap the software chips. and any other chips that are on the old pcb that are not on the new pcb"...

I wasnt aware of that this was needed. I'm now afraid that the problem i had before sits in these chips and i just "move it forewards" - to my replacement board.....

By the way, wich is the software chips?

[Swemill]

One addition "jdeere4250" - We have an 4850 S here at home since i was a kid. Not as big as your 4250, but we have had much fun with it!
You could see it here on my site if you scroll down 10 - 11 pictures:

Edit: That direct / menylink wasn't working. You must first press "I Backspegeln" ( = In the Mirror) in the meny to the left (seveth from top), then scroll down...

http://www.bengan.com/predator/

[CNCZILLA]

There is one thing you need to keep in mind and i haven't heard it mentioned by anyone here yet. ANYTIME you are working with memory, MAKE A BACKUP FIRST. There should always be a system backup made of your parameters,programs,etc. Then at least you can get the machine back to its original state. Obviously you don't have backups so when you get this problem resolved and your machine is back in running order, then make yourself a complete backup of your system and maybe next time you will save yourself a lot of grief. Backups are easy to do and will save you much headache latter. No one ever does this until they need it and then it is to late.