Digital BW, The Print

Hi John,

From the information you're providing in your post below, replacing 
the main board is not really required so I'm glad you're not spending 
the money on it.

You have verified that when the wires are correctly connected to CN24 
that the pump motor works -- therefore, the main board device driver 
(that powers the pump motor) is not defective.

You also verified that the problem is not in the pump motor or the 
connecting cable between the pump motor and the main board -- rather 
it is isolated to an unresolved problem with the CN24 connector.

The most practical way of solving this problem is to have someone 
with good, basic electronic (not electrical ;>)) soldering skills to 
visit your site and have them solder the CN24 cable pins directly to 
the header. Although we both work on printers, disassembling your 
7000 to ship the parts would be far more work than it's worth.

In terms of the Pin 1 orientation, I know we covered that on the EWF 
group when we first discussed the CN24 problem. I wouldn't do a lot 
of fooling around with the cable until you're ready to solder the 
leads in place exactly where they belong -- otherwise, you may cause 
unintentional damage to the system. 

It would be a shame to retire your 7000 just because of this cable 
problem, John -- stay with it! You just need to find someone local 
who knows basic electronics and is good with a soldering iron!

All the best!
Richard

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "john dean" 
<deanwork2003@y...> wrote:
>  Once again thanks for the valuable comments.......
> 
> Yea guys, the more I read about the board replacement the less I 
want to go 
> down that road. If I eventually had to do that it would probably 
make more 
> sense to order the board then let an Epson guy come and put it in 
and do the 
> programing. However, by the time he finished charging me and 
whining about 
> the Piezzo inks and me ordering my own board from Micro, I could 
have 
> bought one of the new 7800's or a slightly used 7600. I just hate 
to throw 
> things away when they could provide more years of service, know 
what I 
> mean?
> 
> I am going to try to make that connector thing work today but I 
have my 
> doubts. As you can see there is a grey wire among those four and 
there is no 
> way to see from the manual if it goes on top or bottom. I simply 
don't 
> remember and didn't have the sense to mark it. We soldered it to 
the top pin. 
> However I have held this wire in place while turning on the machine 
with it in 
> the opposite configuration and no go. 
> 
> I am going to try to hold them temporarily and tape this to the 
original spot on 
> the board again today. Once before we soldered this thing I held 
the wires 
> very tightly on the original spot and it worked. I wish I had one 
of those 
> original white plastic connectors ( you can see it in my jpeg) 
because it held 
> the thing in the exact position and tightly. If I ordered a new 
motor it wouldn't 
> come with one.
> 
> Which one of you guys works on these things? If  you have an 
interest in 
> taking a stab at it I would be happy to pay you whatever it is 
worth for you to 
> try. I really don't have anything to loose do I? So I can pay for 
an attempt. A 
> perfectly great printer is going to be wasted if I don't so 
something. But 
> eventually you have to cut your losses and move on.
> 
> Thanks for the suggestions,
> 
> I will probably not order the new mainboard.
> 
> John
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "dfaprinting" <
> dfaprinting@y...> wrote:
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "john dean" 
> > <deanwork2003@y...> wrote:
> > > I had to post the jpeg of the connection on the epson large 
format 
> > list as this 
> > > list makes it impossible to post pics, why?
> > > 
> > > John
> > 
> > Can't get the pic, not a member there.
> > 
> > I did just do some price checking... the SRAM cards are... well 
to 
> > put it mildly... expensive! I wonder if you could use a compact 
flash 
> > card in a PCMCIA adapter to do the job, much cheaper and it 
> > would "never" fade away. It's been about 2 years since I've read 
up 
> > on the procedure for the firmware change and new main board 
> > installation, so my memory is a little foggy. I kind of remember 
that 
> > there are a lot more adjustments that need to be made after a 
board 
> > change. I think all the A-D converters need to be calibrated to 
the 
> > different mechanics.
> > 
> > If I had a 7000 I would suggest shipping the parts to me, but I 
> > don't. I could make a go at it, but wouldn't really know if it 
was 
> > fixed until sending it back.
> > 
> > One thing you might want to do is remove the capping station and 
> > pump. That way the motor doesn't have a load, so it shouldn't 
need to 
> > pull much current to spin. On the 9500 there is a motor check 
mode in 
> > one of the service menus, that way you can avoid spraying ink all 
> > over. I think that motor is one that can be turned on for 
checking.